☆ 4.8 Review

Recent progress in flexible pressure sensors based on multiple microstructures: from design to application

NANOSCALE (2023)

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Article Chemistry, Physical

Carbon nanotubes field-effect transistor pressure sensor based on three-dimensional conformal force-sensitive gate modulation

Guanyin Cheng et al.

Summary: This paper presents a pressure sensor based on a carbon nanotube field-effect transistor and a three-dimensional conformal force-sensitive top electrode, which exhibits high sensitivity and easy integration. The sensor has a sensitivity of 946.23 kPa-1 and 43.79 kPa-1 in the linear range of 0-30 Pa and 0.03-10 kPa, respectively, higher than piezoresistive and capacitive sensors. Additionally, the sensor has a response time of less than 30 ms and a recovery time of about 30 ms.

CARBON (2023)

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Article Nanoscience & Nanotechnology

Recent progress in graphene-based wearable piezoresistive sensors: From 1D to 3D device geometries

Kai-Yue Chen et al.

Summary: This review provides a comprehensive summary of recent advances in graphene-based piezoresistive sensors, including different geometries and practical applications. The article also summarizes the sensing mechanisms and evaluation parameters of piezoresistive sensors.

NANO MATERIALS SCIENCE (2023)

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Article Nanoscience & Nanotechnology

Bioinspired Self-Powered Piezoresistive Sensors for Simultaneous Monitoring of Human Health and Outdoor UV Light Intensity

Zhichao Yu et al.

Summary: This article introduces a method for in situ synthesis of zinc oxide nanorod arrays on cotton and paper substrates treated with graphene, resulting in highly sensitive, flexible, wearable, and chemically stable strain sensors. Additionally, practical applications in human health activity monitoring and outdoor UV photo-indication are demonstrated.

ACS APPLIED MATERIALS & INTERFACES (2022)

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Article Chemistry, Multidisciplinary

Ultrafast-Response/Recovery Flexible Piezoresistive Sensors with DNA-Like Double Helix Yarns for Epidermal Pulse Monitoring

Jianming Chen et al.

Summary: By redesigning the yarn structure of textiles, the hysteresis issue in textile sensors is effectively addressed, resulting in a pressure sensor with superior recovery index, response time, and monitoring capabilities.

ADVANCED MATERIALS (2022)

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Review Chemistry, Multidisciplinary

Wearable Pressure Sensors for Pulse Wave Monitoring

Keyu Meng et al.

Summary: This study provides an overview of wearable pressure sensors for monitoring human pulse waves, focusing on the sensor mechanisms, microengineering structures, and applications in cardiovascular condition assessment. The study also discusses the opportunities and challenges faced by wearable pressure sensors, highlighting their potential as a wearable intelligent system for personalized healthcare.

ADVANCED MATERIALS (2022)

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Review Chemistry, Multidisciplinary

Emulsion templated scaffolds of poly(ε-caprolactone) - a review

Anilkumar Yadav et al.

Summary: The review explores the role of PCL and its 3D scaffolds in tissue engineering, focusing on the use of HIPE templating in the fabrication of PCL scaffolds, as well as the challenges and potential for expansion of the technique. Additionally, it discusses how HIPE templating can be coupled with advanced fabrication methods such as 3D printing or electrospinning.

CHEMICAL COMMUNICATIONS (2022)

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Article Engineering, Environmental

Conductive and room-temperature self-healable polydimethylsiloxane-based elastomer film with ridge-like microstructure for piezoresistive pressure sensor

Zhipeng Yang et al.

Summary: This study developed a conductive and self-healable elastomer film with ridge-like microstructure for fabricating a piezoresistive pressure sensor with self-healing function. The sensor exhibited high sensitivity, low detection limit, fast response time, repeatability, and the ability to fully recover after healing, making it suitable for various applications including healthcare monitoring and electronic skin.

CHEMICAL ENGINEERING JOURNAL (2022)

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Article Engineering, Environmental

A flexible dual parameter sensor with hierarchical porous structure for fully decoupled pressure-temperature sensing

Yiming Yin et al.

Summary: A flexible pressure-temperature dual parameter sensor with a hierarchical porous structure has been developed to simultaneously sense pressure and temperature with high sensitivity. The sensor demonstrates negligible mutual interference between pressure and temperature signals in dual parameter mode, thanks to reduced temperature-induced resistance change by surface coating of graphene. This sensor shows promising applications in healthcare monitoring, prosthesis, and human-machine interaction systems.

CHEMICAL ENGINEERING JOURNAL (2022)

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Article Materials Science, Multidisciplinary

Highly sensitive and wide-range flexible pressure sensor based on carbon nanotubes-coated polydimethylsiloxane foam

Xiao Lei et al.

Summary: The study has successfully developed a piezoresistive sensor based on polydimethylsiloxane foam, with ultra-high sensitivity and wide sensing range, fast response and excellent stability, demonstrating great potential in wearable electronics.

MATERIALS LETTERS (2022)

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Article Chemistry, Multidisciplinary

Biodegradable, Breathable Leaf Vein-Based Tactile Sensors with Tunable Sensitivity and Sensing Range

Yue Liu et al.

Summary: A biodegradable, breathable multilayer pressure sensor with outstanding pressure-sensitive characteristics is presented. It is made of all biodegradable materials, has a three-dimensional porous hierarchical structure, and shows excellent pressure-sensitive characteristics over a wide pressure sensing range with high sensitivity. The sensor can be used for human health monitoring and pressure imaging applications.

SMALL (2022)

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Article Chemistry, Multidisciplinary

Laser Direct Writing of Highly Ordered Two-Level Hierarchical Microstructures for Flexible Piezoresistive Sensor with Enhanced Sensitivity

Chenying Zhang et al.

Summary: This study uses laser direct writing technology to fabricate highly ordered hierarchical microstructures (HMs) for enhancing the sensitivity of flexible pressure sensors. Two case studies are conducted to verify the performance of the sensor, demonstrating the potential of laser processing in fabricating highly ordered HMs for achieving highly sensitive sensors.

ADVANCED MATERIALS INTERFACES (2022)

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Review Chemistry, Multidisciplinary

Flexible Pressure Sensors Based on Bionic Microstructures: From Plants to Animals

Yuewu Tan et al.

Summary: This paper summarizes various types of flexible pressure sensors with bionic structures developed in recent years. After introducing the latest advancements in flexible pressure sensors, it focuses on substrate and active materials, sensing mechanisms, key parameters, and sensitivity optimization strategies, as well as various bionic microstructures applied to flexible pressure sensors and their performance characterization.

ADVANCED MATERIALS INTERFACES (2022)

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Article Materials Science, Multidisciplinary

Tunable Wide Range and High Sensitivity Flexible Pressure Sensors with Ordered Multilevel Microstructures

Da Geng et al.

Summary: An ordered multilevel microstructure is proposed in this study for performance regulation of piezoresistive pressure sensors. The fabricated flexible sensors exhibit high sensitivity, low detection limit, short response time, and excellent mechanical stability over a wide range. This design and fabrication strategy can be further optimized and applied to a variety of flexible materials.

ADVANCED MATERIALS TECHNOLOGIES (2022)

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Article Nanoscience & Nanotechnology

Graphene Porous Foams for Capacitive Pressure Sensing

Lekshmi A. Kurup et al.

Summary: The development of capacitive flexible pressure sensors using graphene-based conductive foams showed high sensitivity and durability, especially in detecting weak physiological signals within a low pressure range. The porous foams with graphene-coated pores demonstrated the highest sensitivity and showed potential applications in biomedical sensing and wearable devices.

ACS APPLIED NANO MATERIALS (2022)

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Article Nanoscience & Nanotechnology

Smart Pillow Based on Flexible and Breathable Triboelectric Nanogenerator Arrays for Head Movement Monitoring during Sleep

Haiying Kou et al.

Summary: A pressure-sensitive smart pillow is developed using a flexible and breathable triboelectric nanogenerator (TB-TENG) sensor array to monitor head movement during sleep. The smart pillow also has an early warning function for falling out of bed.

ACS APPLIED MATERIALS & INTERFACES (2022)

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Article Nanoscience & Nanotechnology

Wearable RGO/MXene Piezoresistive Pressure Sensors with Hierarchical Microspines for Detecting Human Motion

Junhuang Xu et al.

Summary: This study presents a multi-layer and phased-responsive piezoresistive pressure sensor with hierarchical microspines. The sensor exhibits wide detection range, fast response, and excellent working stability. It has been successfully applied for detecting various human motions and pressure signals, as well as perceiving the distribution of plane pressure.

ACS APPLIED MATERIALS & INTERFACES (2022)

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Article Nanoscience & Nanotechnology

All-Nanofiber Network Structure for Ultrasensitive Piezoresistive Pressure Sensors

Yue Zhou et al.

Summary: In this study, an ultrathin and flexible piezoresistive pressure sensor with a multilayer nanofiber network structure was developed. The sensor exhibited high sensitivity, fast response time, and a wide detection range, making it suitable for applications in human health monitoring and motion monitoring.

ACS APPLIED MATERIALS & INTERFACES (2022)

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Article Chemistry, Multidisciplinary

Graded Interlocks for Iontronic Pressure Sensors with High Sensitivity and High Linearity over a Broad Range

Ningning Bai et al.

Summary: Researchers have developed an iontronic flexible pressure sensor that achieves high sensitivity, linear response, and a wide pressure range. The sensor has a fast response time, allowing it to detect high-frequency vibration signals, and has been used to recognize objects with different weights.

ACS NANO (2022)

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Article Chemistry, Multidisciplinary

Soft Capacitive Pressure Sensors: Trends, Challenges, and Perspectives

Kyoung-Ho Ha et al.

Summary: Capacitive pressure sensors are critical in soft robotics and bioelectronics. However, practical application of soft CPS still faces challenges of sensitivity decay and coupled response between in-plane stretch and out-of-plane pressure.

ACS NANO (2022)

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Article Chemistry, Multidisciplinary

Crack-Across-Pore Enabled High-Performance Flexible Pressure Sensors for Deep Neural Network Enhanced Sensing and Human Action Recognition

Yuxin Hou et al.

Summary: This study demonstrates a high-performance pressure sensor based on flexible porous materials, which has high sensitivity, low detection limit, and excellent durability. The sensor can be used to detect various stimuli within different pressure ranges and offers high accuracy in practical scenarios.

ACS NANO (2022)

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Article Biophysics

A nature-inspired hierarchical branching structure pressure sensor with high sensitivity and wide dynamic range for versatile medical wearables

Han Yang et al.

Summary: A pressure sensor based on a hierarchical branching (HB) structure with high sensitivity and wide detection range is demonstrated. The HB structure allows step-by-step mobilization of microstructure deformation, resulting in improved performance compared to traditional monolayer sensors.

BIOSENSORS & BIOELECTRONICS (2022)

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Article Materials Science, Ceramics

Preparation of bionic porous Al2O3 from green leaf of epipremnum aureum as a biotemplate

Mengmeng Sun et al.

Summary: Bionic Al2O3 nanostructure was successfully prepared using epipremnum aureum leaf as a bio-template. SEM, XRD, and TG were used to characterize the bionic Al2O3. The results showed that the optimal preparation temperature was 1200 degrees C, and the bionic Al2O3 formed a rhombohedral system with rod-like shape. The rod-like Al2O3 distributed throughout the epipremnum aureum leaf, perfectly reproducing the original leaf surface morphology and porous cross-sectional structure.

CERAMICS INTERNATIONAL (2022)

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Article Engineering, Environmental

Electrospun fiber-based high-performance flexible multi-level micro-structured pressure sensor: Design, development and modelling

Shuo Yang et al.

Summary: Template-assisted electrospinning was used to fabricate multi-level microstructured pressure sensors with exceptional performance and industrial relevance.

CHEMICAL ENGINEERING JOURNAL (2022)

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Article Engineering, Environmental

Wide-range sensitive all-textile piezoresistive sensors assembled with biomimetic core-shell yarn via facile embroidery integration

Yiming Ke et al.

Summary: The emergence of flexible high-performance pressure sensors has greatly contributed to the development of wearable intelligent systems. In this study, a cytoskeleton-inspired core-shell yarns (CCSY) were used to create pressure sensors with wide working pressure range, high sensitivity, and short response time. The sensors were integrated into traditional textiles and accurately monitored physiological signals of the human body.

CHEMICAL ENGINEERING JOURNAL (2022)

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Article Engineering, Environmental

Bionic MXene based hybrid film design for an ultrasensitive piezoresistive pressure sensor

Jinfeng Yan et al.

Summary: An ultrasensitive bionic pressure sensor based on MXene was designed and fabricated by molding the microstructure of the ginkgo leaf. The sensor demonstrated ultrahigh sensitivity, short response time, and extraordinary durability, and showed great potential applications in various fields.

CHEMICAL ENGINEERING JOURNAL (2022)

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Article Materials Science, Composites

A novel flexible piezoresistive sensor using superelastic fabric coated with highly durable SEBS/TPU/CB/CNF nanocomposite for detection of human motions

Tianjiao Chen et al.

Summary: This article introduces a sensitive and durable piezoresistive sensor fabricated using knitted fabric decorated with a composite coating. The coating is composed of carbon black, cellulose nanofiber, thermoplastic polyurethane, and thermoplastic elastomer. Chemical analysis shows strong interactions between the coating and fabric, improving the mechanical durability and stability of the sensor. Experimental results demonstrate that the sensor has high pressure sensing sensitivity, wide working range, and good stability.

COMPOSITES SCIENCE AND TECHNOLOGY (2022)

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Article Materials Science, Composites

Polyurethane sponges-based ultrasensitive pressure sensor via bioinspired microstructure generated by pre-strain strategy

Heng Yang et al.

Summary: This paper presents a highly sensitive and easy-to-manufacture flexible pressure sensor based on composite materials. The sensor achieves outstanding sensitivity and stability through the use of a pre-strain strategy and dip-coating treatment with graphene. It can detect human pulse and identify surfaces with different roughness, making it promising for applications in robotic hands and human wearable devices.

COMPOSITES SCIENCE AND TECHNOLOGY (2022)

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Article Materials Science, Composites

Ultrasensitive and wide-range reduced graphene oxide/natural rubber foam sensors for multifunctional self-powered wireless wearable applications

Yanjing Zhang et al.

Summary: Flexible wearable electronics is a promising field with wide applications. In this study, an all-in-one sensor with high sensitivity, wide detection range and excellent durability was developed using reduced graphene oxide and porous natural rubber. Additionally, a smart insole for gait analysis and disease diagnosis was fabricated. The study also demonstrated the ability of the sensor to harvest mechanical energy, providing a new approach for the development of wireless self-powered wearable systems.

COMPOSITES SCIENCE AND TECHNOLOGY (2022)

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Article Materials Science, Composites

A flexible dual-mode pressure sensor with ultra-high sensitivity based on BTO@MWCNTs core-shell nanofibers

Bangze Zhou et al.

Summary: The newly developed pressure sensor material shows excellent piezoelectricity and piezoresistivity, making it suitable for monitoring subtle pressure changes and finger movements, demonstrating great potential for applications.

COMPOSITES SCIENCE AND TECHNOLOGY (2022)

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Article Chemistry, Physical

Flexible strain/pressure sensor with good sensitivity and broad detection range by coupling PDMS and carbon nanocapsules

Chunhong Mu et al.

Summary: In this study, a novel multi-level porous structure of polydimethylsiloxane/carbon nanocapsules composite was developed as a flexible sensor with high sensitivity and broad detection range. The sensor exhibited positive resistance change under a broad pressure detection range of 0-450 kPa. It also showed highly sensitive strain response to stretching and bending deformation. This research holds significant importance in the field of security and protection.

JOURNAL OF ALLOYS AND COMPOUNDS (2022)

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Article Materials Science, Multidisciplinary

High-sensitivity self-powered temperature/pressure sensor based on flexible Bi-Te thermoelectric film and porous microconed elastomer

Yaling Wang et al.

Summary: This study presents a self-powered flexible temperature-pressure bimodal sensor that can accurately sense temperature signals and detect external tactile stimuli. The sensor has high resolution, excellent sensitivity, and low-pressure detection capability, and can simultaneously monitor human wrist pulse and body temperature in real time.

JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY (2022)

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Article Chemistry, Multidisciplinary

Porous Pure MXene Fibrous Network for Highly Sensitive Pressure Sensors

Qitao Yu et al.

Summary: This article presents a wearable and flexible MXene fibrous network pressure sensor with high sensitivity and a wide detection range. The sensor shows potential applications in human motion signal detection and pressure distribution measurement.

LANGMUIR (2022)

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Article Chemistry, Physical

A flexible triboelectric tactile sensor for simultaneous material and texture recognition

Ziwu Song et al.

Summary: MTSensing system is a wireless system integrating tactile sensing technology, which can simultaneously recognize materials and textures through a single flexible triboelectric sensor, achieving high accuracy prediction through deep learning models.

NANO ENERGY (2022)

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Article Chemistry, Physical

MXene/rGO/PS spheres multiple physical networks as high-performance pressure sensor

Li Li et al.

Summary: Flexible wearable sensors are important in various practical applications. High-porosity aerogel has potential in pressure sensors, but tends to deform under long-term cycling pressure. Researchers propose a strategy to introduce aerogel structure into a tiny sponge network, improving the stability of the sensor. The sensor maintains over 90% initial sensitivity after 15,000 cycles and has fast response time and bending sensing capabilities.

NANO ENERGY (2022)

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Article Chemistry, Physical

Polyaniline-nanospines engineered nanofibrous membrane based piezoresistive sensor for high-performance electronic skins

Sudeep Sharma et al.

Summary: This paper proposes a new type of highly sensitive pressure sensor based on hybridized nanofibrous membrane technology, which overcomes the limitations of existing piezoresistive sensors and has high sensitivity and wide pressure range response. The sensor has broad application prospects in the field of electronic skin and wearable electronic devices.

NANO ENERGY (2022)

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Article Chemistry, Multidisciplinary

Reproducible Flexible SERS Substrates Inspired by Bionic Micro-Nano Hierarchical Structures of Rose Petals

Chengpeng Zhang et al.

Summary: This article presents a 3D SERS substrate inspired by rose petals, which exhibits excellent performance and long-term stability. The substrate shows potential for practical applications in drug detection, food safety, and water pollution detection.

ADVANCED MATERIALS INTERFACES (2022)

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Article Chemistry, Multidisciplinary

Stiffness Engineering of Ti3C2TX MXene-Based Skin-Inspired Pressure Sensor with Broad-Range Ultrasensitivity, Low Detection Limit, and Gas Permeability

Zengyu Hui et al.

Summary: This article proposes a stiffness engineering strategy for constructing Ti3C2TX MXene-based porous spinosum structure to boost sensitivity over a broad detection range. The as-fabricated pressure sensor exhibits superior performance, including ultrahigh sensitivity, low detection limit, good gas permeability, and exceptional mechanical stability.

ADVANCED MATERIALS INTERFACES (2022)

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Article Materials Science, Multidisciplinary

All Paper-Based, Multilayered, Inkjet-Printed Tactile Sensor in Wide Pressure Detection Range with High Sensitivity

Taehoon Lee et al.

Summary: The resistive tactile sensor developed in this study uses carbon nanotube- and silver nanoparticle-printed mulberry paper as the pressure-sensing element and electrodes, demonstrating high sensitivity and a wide sensing range. The rough surface and high inner porosity of mulberry paper induce a significant change in the contact area, leading to increased sensitivity to pressure.

ADVANCED MATERIALS TECHNOLOGIES (2022)

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Article Materials Science, Multidisciplinary

Hierarchical MXene@ZIF-67 Film Based High Performance Tactile Sensor with Large Sensing Range from Motion Monitoring to Sound Wave Detection

Xiyao Fu et al.

Summary: Researchers have successfully synthesized a layered MXene/MOFs film by intercalating ZIF-67 octahedron crystals between MXene nanosheets to enhance the conductivity of the material. This novel material can be used to fabricate flexible tactile sensors with excellent sensing performance and a broad pressure detection range.

ADVANCED MATERIALS TECHNOLOGIES (2022)

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Review Multidisciplinary Sciences

Flexible pressure sensors via engineering microstructures for wearable human-machine interaction and health monitoring applications

Xihua Cui et al.

Summary: This review provides an overview of the recent advances in the fabrication and application of high-performance flexible pressure sensors via engineering microstructures. The implementation mechanisms and fabrication strategies of different microstructures are systematically summarized, and the applications of flexible pressure sensors with microstructures in the fields of wearable human-machine interaction and healthcare monitoring are comprehensively discussed.

ISCIENCE (2022)

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Article Chemistry, Multidisciplinary

Bioinspired design of highly sensitive flexible tactile sensors for wearable healthcare monitoring

J. Chen et al.

Summary: A high performance capacitive tactile sensor was developed based on a biomimetic hierarchical array structure with silver nanowires, showing improved sensitivity and response range compared to monotonous counterparts. An optimized ionic gel film as the dielectric layer further enhanced the sensor's performance, demonstrating a wide detection range and high sensitivity.

MATERIALS TODAY CHEMISTRY (2022)

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Review Nanoscience & Nanotechnology

Micro/nanoarrays and their applications in flexible sensors: A review

J. X. Lin et al.

Summary: This review provides a comprehensive study on the fabrication methods and applications of flexible sensors, with a focus on 2D and 3D micro/nanoarrays. By critically discussing the correlations between sensing performances and fabrication approaches, valuable guidance is provided for achieving flexible sensors with ultra-high sensitivity in a wide range of applications.

MATERIALS TODAY NANO (2022)

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Article Materials Science, Multidisciplinary

Rational designed microstructure pressure sensors with highly sensitive and wide detection range performance

Yimeng Ni et al.

Summary: A highly sensitive pressure sensor was fabricated using sandpaper and a sacrificial template, providing a broad linear response and the ability to detect various subtle human motions. The microstructure of the sandpaper contributed to its high sensitivity, while the elastic substrate enhanced its ability to withstand high pressure. This sensor has potential applications in pressure sensors and flexible wearable electronic devices.

JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY (2022)

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Article Nanoscience & Nanotechnology

All-Nanofibrous Ionic Capacitive Pressure Sensor for Wearable Applications

Xiuzhu Lin et al.

Summary: In this study, an all-nanofibrous ionic pressure sensor (IPS) is developed with enhanced capacitance and sensing properties by the formation of an electrical double layer at the electrode/electrolyte contact interface. The IPS has high sensitivity and rapid response and recovery speed, making it suitable for real-time monitoring of multiple physiological signals, and it also has excellent air permeability and heat dissipation.

ACS APPLIED MATERIALS & INTERFACES (2022)

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Article Materials Science, Multidisciplinary

Porous Microstructure-Assisted Flexible and Highly Sensitive Polymer Piezoresistive Pressure Sensor

Lakhvir Singh et al.

Summary: This study presents a flexible PDMS-based pressure sensor with hemispherical microstructures, achieving high sensitivity and operation range. Experiments and simulations show that decreasing the substrate thickness and adding porosity can further improve the sensor performance.

ADVANCED ENGINEERING MATERIALS (2022)

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Article Chemistry, Physical

A novel pre-deposition assisted strategy for inkjet printing graphene-based flexible pressure sensor with enhanced performance

Jiawei Sun et al.

Summary: Inkjet printing of graphene-based materials is a promising deposition method, but faces challenges with the coffee ring effect. This paper demonstrates a novel pre-deposition assisted strategy to achieve uniform deposition of graphene nanosheets, resulting in a flatter printed pattern. The method opens up opportunities for low-cost inkjet printing of graphene-based electronic devices with desirable performance.

CARBON (2022)

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Article Engineering, Environmental

Bioinspired hierarchical polydimethylsiloxane/polyaniline array for ultrasensitive pressure monitoring

Yan Ma et al.

Summary: In this study, a hierarchical structure-based pressure sensor composed of PDMS micropillars and PANI nanoneedles was designed. This sensor exhibits excellent performance in terms of sensitivity, response time, and cycle stability, and shows promising potential in human physiological signal monitoring.

CHEMICAL ENGINEERING JOURNAL (2022)

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Article Chemistry, Physical

Skin-inspired flexible and high-performance MXene@polydimethylsiloxane piezoresistive pressure sensor for human motion detection

Baodeng Chen et al.

Summary: Flexible high-performance piezoresistive pressure sensors have gained significant attention for their potential applications in smart robots, wearable electronics, and electronic skin. This study presents a new strategy for fabricating a double-layer piezoresistive pressure sensor with a wide sensing range and high sensitivity, inspired by human skin. The sensor exhibited high sensitivity, fast response/recovery time, and excellent repeatability. It was successfully applied for real-time detection of various physiological activities and spatial pressure distribution visualization.

JOURNAL OF COLLOID AND INTERFACE SCIENCE (2022)

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Article Chemistry, Physical

Electrically conductive porous MXene-polymer composites with ultralow percolation threshold via Pickering high internal phase emulsion templating strategy

Zheng Zheng et al.

Summary: A facile method to prepare lightweight ECPCs with a well-controlled segregated structure via Ti3C2Tx-stabilized HIPE templating is proposed in this work. The Ti3C2Tx flakes are mainly immobilized at the water-oil interface and eventually form the segregated network in composites. The prepared porous polymer composites exhibit good conductivity even with ultralow Ti3C2Tx content.

JOURNAL OF COLLOID AND INTERFACE SCIENCE (2022)

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Article Polymer Science

Fluorescent markable multi-mode pressure sensors achieved by sandwich-structured electrospun P(VDF-HFP) nanocomposite films

Guimao Fu et al.

Summary: The development of multi-functional piezoelectric polymer film is highly significant for wearable functional devices, flexible sensors, and intelligent wearables. This study prepared a fluorescent labeled multimode pressure sensor using electrospinning technology with P(VDF-HFP) nanocomposite films. The sandwich-structured devices showed high sensitivity, piezoelectric output, fluorescence functionality, flexibility, and thermal properties. The results suggest that sandwich-structured devices based on fluorescent labeled electroactive P(VDF-HFP) composite nanofiber films have great potential for multi-functional flexible sensors and intelligent wearables.

POLYMER (2022)

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Review Nanoscience & Nanotechnology

Morphological Engineering of Sensing Materials for Flexible Pressure Sensors and Artificial Intelligence Applications

Zhengya Shi et al.

Summary: This article introduces the rapid development of flexible pressure sensors, focusing on morphological engineering technologies and structural design of sensing materials. The article summarizes fabrication techniques and discusses the applications of pressure sensors in healthcare, smart homes, and digital sports. Finally, the article comprehensively discusses the potential challenges and prospects for the future development of pressure sensors.

NANO-MICRO LETTERS (2022)

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Article Chemistry, Multidisciplinary

Structure-Driven, Flexible, Multilayered, Paper-Based Pressure Sensor for Human-Machine Interfacing

Neha Sakhuja et al.

Summary: This paper proposes a low-cost hierarchical construction strategy to enhance the sensitivity of a paper-based piezoresistive pressure sensor and demonstrates its practical applications in human-machine interfacing and biodegradation.

ACS SUSTAINABLE CHEMISTRY & ENGINEERING (2022)

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Article Chemistry, Physical

Bioinspired and multiscale hierarchical design of a pressure sensor with high sensitivity and wide linearity range for high-throughput biodetection

Lingting Huang et al.

Summary: Currently, fabricating flexible pressure sensors with high sensitivity, wide linearity, and a simple manufacturing process is a major challenge. The use of flexible piezoresistive sensors in electronic skin and healthcare detection systems for sensing biophysical signals has gained considerable interest. However, there is a lack of effective signal transduction for sensors to detect biochemical signals, which contain more reference value and health information. This study proposes a multiscale hierarchical designed pressure sensor based on polyaniline urchin-like hollow spheres (PANI-UHSs) as a conductive material, mixed with a thermoplastic polyurethane (TPU) substrate, to address this limitation.

NANO ENERGY (2022)

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Article Chemistry, Physical

Flexible tensile strain-pressure sensor with an off-axis deformation-insensitivity

Hongcheng Xu et al.

Summary: This study developed an integrated sensor patch (ISP) that can sense both strain and pressure, and is insensitive to off-axis deformations. The patch has independent tensile strain and out-of-plane pressure sensing capabilities, making it suitable for applications in human-machine interfaces and virtual reality.

NANO ENERGY (2022)

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Article Chemistry, Multidisciplinary

Eu3+-Doped Electrospun Polyvinylidene Fluoride-Hexafluoropro pylene/Graphene Oxide Multilayer Composite Nanofiber for the Fabrication of Flexible Pressure Sensors

Guimao Fu et al.

Summary: In this study, a highly sensitive red light-emitting flexible pressure sensor with high piezoelectricity and good electrostrictive effect was fabricated. The material also exhibited excellent ferroelectric and fluorescence properties, indicating its great potential in applications such as photoluminescent fabrics, flexible sensors, soft actuators, and energy storage devices.

ACS OMEGA (2022)

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Article Engineering, Environmental

Biocompatible and breathable all-fiber-based piezoresistive sensor with high sensitivity for human physiological movements monitoring

Wenwen Du et al.

Summary: This study presents a biocompatible and breathable all-fiber-based piezoresistive sensor with high sensitivity. The sensor has excellent flexibility, reliable breathability, favorable biocompatibility, rapid response/recovery time, and excellent cycling stability. The introduction of an insulation layer further enhances the sensitivity of the sensor.

CHEMICAL ENGINEERING JOURNAL (2022)

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Article Engineering, Environmental

Merkel receptor-inspired integratable and biocompatible pressure sensor with linear and ultrahigh sensitive response for versatile applications

Zhongqian Song et al.

Summary: By introducing orthogonal knitted threads and local stress concentration strategy, the linear range of pressure sensors can be significantly broadened while maintaining high sensitivity. These sensors have the characteristics of miniaturization, integrability, and biocompatibility.

CHEMICAL ENGINEERING JOURNAL (2022)

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Article Chemistry, Physical

Bioinspired engineering of gradient and hierarchical architecture into pressure sensors toward high sensitivity within ultra-broad working range

Shiqiang Song et al.

Summary: Introducing hierarchical microstructure in sensor design enhances sensitivity and enables high sensitivity detection across a broad pressure range, with fast response time and excellent stability.

NANO ENERGY (2022)

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Article Materials Science, Multidisciplinary

Review on the role of intrinsic structure on properties of dielectric elastomers for enhanced actuation performance

Dhananjay Sahu et al.

Materials Today Communications (2022)

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Article Chemistry, Physical

Effects of AC frequency on the capacitance measurement of hybrid response pressure sensors

Zhengjie Li et al.

Summary: This article introduces the application of soft pressure sensors in soft robots, bio-integrated devices, and deformable touch panels, and proposes a solution of a hybrid-response pressure sensor (HRPS). The frequency response of HRPS is shown to be controlled by a dimensionless parameter, and a practical guideline for selecting the optimal measurement frequency is established based on experimental validation.

SOFT MATTER (2022)

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Article Engineering, Electrical & Electronic

Leaf-meridian bio-inspired nanofibrous electronics with uniform distributed microgrid and 3D multi-level structure for wearable applications

Mingxu Wang et al.

Summary: In this study, a spatial multi-level nanofibrous membrane with a grid-like microstructure of uniform distribution is fabricated through surface engineering. The membrane shows high sensitivity, fast response time, and low detection limit when used as a pressure sensor. Additionally, it can be used as a scalable and integrable platform for electro-thermal conversion and energy harvesting.

NPJ FLEXIBLE ELECTRONICS (2022)

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Article Engineering, Electrical & Electronic

Highly Sensitive and Flexible Capacitive Pressure Sensor Based on a Dual-Structured Nanofiber Membrane as the Dielectric for Attachable Wearable Electronics

Ruiqing Li et al.

Summary: In this study, a simple method to fabricate sandwich-structured capacitive pressure sensors on an industrial scale and at low cost was proposed. The prepared sensors showed high sensitivity, fast response time, and high durability, making them suitable for detecting human movements, object grasping, and pressure distribution. This research demonstrates the potential application of attachable wearable electronics.

ACS APPLIED ELECTRONIC MATERIALS (2022)

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Article Polymer Science

Spray printed conjugated polymer on tissue paper for highly sensitive pressure sensors

Xin-Hua Zhao et al.

Summary: Flexible pressure sensors using spray printed conductive polymer on tissue paper as the active layer exhibit high pressure sensitivity, fast response time, long durability, making them promising for applications in wrist pulse monitoring and voice recognition.

POLYMER INTERNATIONAL (2021)

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Article Nanoscience & Nanotechnology

Polyimide Nanofiber-Reinforced Ti3C2Tx Aerogel with Lamella-Pillar Microporosity for High-Performance Piezoresistive Strain Sensing and Electromagnetic Wave Absorption

Lei Pu et al.

Summary: By utilizing short polyimide nanofibers (PINFs) as cross-linking and supporting building blocks, a lightweight, robust, and elastic PINF/Ti3C2Tx MXene composite aerogel (PINF/MA) with a unique 3D lamella-pillar microporous architecture was constructed in this work. The PINF/MA composite aerogel demonstrates exceptional piezoresistive sensing performance, wide pressure range, high sensitivity, low detection limit, and great compression/rebound stability, making it a promising candidate for wearable strain sensors and microwave absorbers.

ACS APPLIED MATERIALS & INTERFACES (2021)

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Article Nanoscience & Nanotechnology

Graded Microstructured Flexible Pressure Sensors with High Sensitivity and an Ultrabroad Pressure Range for Epidermal Pulse Monitoring

Xue Wang et al.

Summary: This study introduces a high-performance pressure sensor developed using a commercial conductive fabric and a silica gel film, with high sensitivity, ultrawide pressure range, and convenient fabrication process suitable for large-scale production.

ACS APPLIED MATERIALS & INTERFACES (2021)

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Article Chemistry, Multidisciplinary

Skin-Inspired Hair-Epidermis-Dermis Hierarchical Structures for Electronic Skin Sensors with High Sensitivity over a Wide Linear Range

Huijun Kong et al.

Summary: The study introduces a hierarchical structure of electronic skin sensor based on hair-epidermis-dermis design, achieving high sensitivity and wide linear sensing range simultaneously. The sensor demonstrates a low detection limit, fast response time, excellent stability, and reproducibility, making it suitable for detecting airflow, monitoring human pulse, and sound-induced vibrations.

ACS NANO (2021)

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Article Chemistry, Multidisciplinary

Highly Sensitive Capacitive Pressure Sensors over a Wide Pressure Range Enabled by the Hybrid Responses of a Highly Porous Nanocomposite

Kyoung-Ho Ha et al.

Summary: Researchers have developed a new hybrid-response pressure sensor with increased sensitivity, achieved by combining electrically conductive porous nanocomposites with an ultrathin dielectric layer. Through simplified analytical models, they have successfully gained a fundamental understanding of the sensor and predicted optimal CNT doping.

ADVANCED MATERIALS (2021)

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Review Chemistry, Multidisciplinary

Wearable Sensors-Enabled Human-Machine Interaction Systems: From Design to Application

Ruiyang Yin et al.

Summary: Compared to traditional electronic devices, flexible and wearable HMI systems are the inevitable future trend for achieving effective human-machine interaction. Developing effective strategies for designing material microstructures on flexible sensors and electric devices is crucial for seamless manipulation of high-performance wearable HMI systems. This review highlights the mechanisms and strategies for designing flexible sensors, the importance of real-time acquisition of human physiology and surrounding signals, and the advanced applications of wearable HMI systems in various fields.

ADVANCED FUNCTIONAL MATERIALS (2021)

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Review Chemistry, Multidisciplinary

First Decade of Interfacial Iontronic Sensing: From Droplet Sensors to Artificial Skins

Yu Chang et al.

Summary: Iontronic sensing technology, utilizing the supercapacitive nature of the electrical double layer at the electrolytic-electronic interface, offers ultrahigh device sensitivity and resolution, suitable for static and dynamic stimuli, with thin and flexible device architectures, providing a unique combination of features to tackle challenges in pressure and tactile sensing applications.

ADVANCED MATERIALS (2021)

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Article Engineering, Environmental

Wide linear range and highly sensitive flexible pressure sensor based on multistage sensing process for health monitoring and human-machine interfaces

Mengjuan Zhong et al.

Summary: A micro-nano hybrid conductive elastomer film with arched micro-patterns array was developed to fabricate flexible pressure sensors with wide linear range and high sensitivity. The sensor exhibits a linear sensitivity of 26.6 kPa(-1) and a wide linear range of 20 Pa - 600 kPa, enabling applications in health monitoring and human-machine interfaces.

CHEMICAL ENGINEERING JOURNAL (2021)

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Article Engineering, Multidisciplinary

Fabrication of hierarchically porous structured PDMS composites and their application as a flexible capacitive pressure sensor

Juwon Hwang et al.

Summary: In this study, hierarchically porous PDMS composites were fabricated for flexible capacitive pressure sensors, with high sensitivity and wide measurement range. Finite element analysis was used to analyze the non-linearity of the sensors, and practical applications such as finger attached-sensor, respiration monitoring system, and sensor array tests showed the potential of the proposed sensors in wearable electronics.

COMPOSITES PART B-ENGINEERING (2021)

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Article Engineering, Environmental

A lightweight, ultrathin aramid-based flexible sensor using a combined inkjet printing and buckling strategy

Jianpeng Wu et al.

Summary: The ultrathin aramid-based flexible sensor, produced through inkjet printing and buckling strategy, demonstrates excellent electrical response to external pressure, sensitive subtle-pressure perception, remarkable mechanical durability, and rapid response and recovery speed. It can be attached to skin/machine surfaces for continuous monitoring of various physical signals and has the potential for broad applications in contact and noncontact perception platforms for portable electronic devices.

CHEMICAL ENGINEERING JOURNAL (2021)

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Article Engineering, Environmental

A high-performance piezoresistive sensor based on poly (styrene-co-methacrylic acid)@polypyrrole microspheres/ graphene-decorated TPU electrospun membrane for human motion detection

Haonan Cheng et al.

Summary: This paper presents a high-performance flexible piezoresistive sensor based on micro-nano 3D networked conductive electrospun membrane, featuring low operating voltage, high sensitivity, short response time, and excellent cycle stability, suitable for monitoring human physiological signals and motions.

CHEMICAL ENGINEERING JOURNAL (2021)

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Article Engineering, Multidisciplinary

Bamboo-inspired mechanically flexible and electrically conductive polydimethylsiloxane foam materials with designed hierarchical pore structures for ultra-sensitive and reliable piezoresistive pressure sensor

Shou-Wei Dai et al.

Summary: This study presents a bamboo-inspired design approach to fabricate mechanically flexible and electrically conductive carbon nanofiber/polydimethylsiloxane foam composites with unique and hierarchical pore structures, which exhibit outstanding mechanical flexibility, high sensitivity, and reliability for wide-stress motions. The optimized multi-level pore structures contribute to the highly sensitive sensing behavior and excellent mechanical reliability of the sensor, making it suitable for various applications such as vital signs monitoring and human motions tracking.

COMPOSITES PART B-ENGINEERING (2021)

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Article Chemistry, Physical

Flexible self-powered multifunctional sensor for stiffness-tunable soft robotic gripper by multimaterial 3D printing

Mengying Xie et al.

Summary: This study demonstrates a self-powered, flexible multifunctional sensor that provides proprioceptive feedback through curvature and stiffness, while also acting as an active jamming element to adjust finger stiffness. It enhances interaction between grippers and manipulated objects, potentially leading to the development of anthropomorphic robotic grippers.

NANO ENERGY (2021)

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Review Chemistry, Physical

Recent Progress in Flexible Microstructural Pressure Sensors toward Human-Machine Interaction and Healthcare Applications

Faliang He et al.

Summary: This article introduces the research status and application prospects of flexible microstructural pressure sensors in the context of rapid development of artificial intelligence, focusing on their microstructure design, preparation strategies, and material selection. The potential applications in the fields of medical health and human-machine interaction are emphasized.

SMALL METHODS (2021)

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Article Nanoscience & Nanotechnology

Flexible and Sensitivity-Adjustable Pressure Sensors Based on Carbonized Bacterial Nanocellulose/Wood-Derived Cellulose Nanofibril Composite Aerogels

Sheng Chen et al.

Summary: Renewable biomaterials like cellulose were used in the preparation of a composite aerogel for a flexible pressure sensor, exhibiting remarkable flexibility, fast response, and adjustable sensitivity in a wide pressure range. The sensor's working mechanism, potential applications, and the utilization of sustainable natural biomaterials in high-tech fields were well demonstrated in this study.

ACS APPLIED MATERIALS & INTERFACES (2021)

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Article Chemistry, Multidisciplinary

Controlled Assembly of MXene Nanosheets as an Electrode and Active Layer for High-Performance Electronic Skin

Xiyao Fu et al.

Summary: MXene materials have been successfully applied in electronic skins, showing excellent performance compared to other electrodes. The flexible device with Ti3C2Tx MXene electrodes exhibits high sensitivity, fast response time, low detection limit, and robust mechanical stability.

ADVANCED FUNCTIONAL MATERIALS (2021)

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Article Engineering, Environmental

Wearable piezoresistive pressure sensors based on 3D graphene

Minghui Cao et al.

Summary: Wearable piezoresistive sensors based on three-dimensional graphene offer advantages such as simple preparation, low power consumption, and convenient signal acquisition, showing great potential in applications like human motion detection and health monitoring.

CHEMICAL ENGINEERING JOURNAL (2021)

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Article Engineering, Environmental

Multifunctional interlocked e-skin based on elastic micropattern array facilely prepared by hot-air-gun

Yajie Zhang et al.

Summary: An efficient method named hot-air-gun assisted preparation is proposed to fabricate electronic skin with quasi-hemispherical micropatterned array, enhancing its sensing performance significantly. This interlocked e-skin exhibits multifunction to discriminate pressure-temperature stimuli, monitor various human physiological signals, and wirelessly monitor respiratory rates. With facile preparation process and low-cost raw materials, this approach can be easily scaled up for practical production.

CHEMICAL ENGINEERING JOURNAL (2021)

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Article Materials Science, Composites

Highly sensitive and flexible piezoresistive sensor based on c-MWCNTs decorated TPU electrospun fibrous network for human motion detection

Siming Li et al.

Summary: A flexible piezoresistive pressure sensor with excellent conductivity and stable structure was fabricated, showing high sensitivity, wide working pressure range, low hysteresis deviation, and good durability. Demonstrations successfully acquired human physiological signals, demonstrating the potential uses of the sensor in e-skins and wearable devices.

COMPOSITES SCIENCE AND TECHNOLOGY (2021)

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Article Chemistry, Applied

Facile synthesis of multifunctional Ag-nanocomposite poly(HIPE) foam via emulsion template method

Xiaotong Li et al.

Summary: Efficient nanoparticle-based stabilizer was designed to achieve an interconnected porous monolith, using Ag-nanocomposite poly HIPE template. The composite showed promising catalytic degradation, antibacterial activity, and enhanced electrical conductivity properties, making it a versatile material for various applications.

REACTIVE & FUNCTIONAL POLYMERS (2021)

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Article Chemistry, Multidisciplinary

Highly Sensitive Flexible Tactile Sensors in Wide Sensing Range Enabled by Hierarchical Topography of Biaxially Strained and Capillary-Densified Carbon Nanotube Bundles

Sangjun Sim et al.

Summary: A resistive tactile sensor based on the hierarchical topography of carbon nanotubes is proposed, featuring a wide sensing range, high sensitivity, and low detection limit.

SMALL (2021)

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Review Biotechnology & Applied Microbiology

Textile Triboelectric Nanogenerators for Wearable Pulse Wave Monitoring

Guorui Chen et al.

Summary: Textile triboelectric nanogenerators (TENGs) are emerging as a compelling biotechnology for wearable pulse wave monitoring due to their high sensitivity, rapid response time, wearability, and low cost. Research discusses sensing mechanisms for pulse-to-electricity conversion, analytical models for calculating cardiovascular parameters, and application scenarios for textile TENGs. Challenges that limit the wider application of this technology are identified, along with suggestions for future research directions in the fields of wearable pulse wave monitoring and cardiovascular disease diagnosis.

TRENDS IN BIOTECHNOLOGY (2021)

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Article Chemistry, Physical

A flexible ultra-sensitive triboelectric tactile sensor of wrinkled PDMS/MXene composite films for E-skin

Ya-Wei Cai et al.

Summary: The study constructed a flexible TENG as a self-powered tactile sensor using a simple method, achieving high sensitivity and showing good application prospects in monitoring complex physiological signals and simulating human touch sensation.

NANO ENERGY (2021)

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Article Nanoscience & Nanotechnology

Controllable Graphene Wrinkle for a High-Performance Flexible Pressure Sensor

Xinyue Tang et al.

Summary: This study developed a high-sensitivity and low-cost flexible piezoresistive sensor by combining controllable graphene-nanowalls wrinkle and a polydimethylsiloxane elastomer. The sensor exhibited fast response speed and low limit of detection, with a controllable microstructure allowing successful detection of various signals. The sensor's potential applications in prosthetics limbs and intelligent robotics were demonstrated through object manipulation, tactile imaging, and braille recognition.

ACS APPLIED MATERIALS & INTERFACES (2021)

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Article Nanoscience & Nanotechnology

Synergy of Porous Structure and Microstructure in Piezoresistive Material for High-Performance and Flexible Pressure Sensors

Wei Li et al.

Summary: A porous and microstructure piezoresistive material made of PDMS and MWCNTs was designed for a flexible and highly sensitive pressure sensor, showing high sensitivity response in a wide pressure range from 1 Pa to 100 kPa.

ACS APPLIED MATERIALS & INTERFACES (2021)

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Article Chemistry, Multidisciplinary

Flexible Waterborne Polyurethane/Cellulose Nanocrystal Composite Aerogels by Integrating Graphene and Carbon Nanotubes for a Highly Sensitive Pressure Sensor

Jianyu Zhai et al.

Summary: A flexible piezoresistive sensor with high sensitivity, low cost, and wide response range was developed using a composite aerogel. The sensor demonstrated remarkable mechanical properties, high sensitivity, low detection limit, and stability. It could successfully detect various human motions and extract real-time information, while also exhibiting excellent thermal insulation for potential use in high-temperature environments.

ACS SUSTAINABLE CHEMISTRY & ENGINEERING (2021)

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Article Materials Science, Composites

Flexible pressure sensor based on cigarette filter and highly conductive MXene sheets

Ran Li et al.

Summary: Flexible and cost-effective MXene-cigarette filter based pressure sensors were fabricated by dip-coating cigarette filters with Ti3C2Tx MXene nanosheets in the aqueous dispersion. The sensors exhibit fast response to compression and excellent cycling stability. These sensors can be used to monitor human behavior due to their high sensitivity and flexibility.

COMPOSITES COMMUNICATIONS (2021)

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Article Engineering, Electrical & Electronic

Research progress of flexible wearable pressure sensors

Xiangfu Wang et al.

Summary: Flexible pressure sensors with high sensitivity, flexibility, and lightness have been extensively researched in various fields. The latest research progress, challenges, and future prospects of flexible pressure sensors are discussed, emphasizing the importance of exploring new sensing mechanisms and functional materials.

SENSORS AND ACTUATORS A-PHYSICAL (2021)

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Article Chemistry, Multidisciplinary

Multilayer Double-Sided Microstructured Flexible Iontronic Pressure Sensor with a Record-wide Linear Working Range

Yan Xiao et al.

Summary: The flexible capacitive pressure sensor presented in this study features an ultrabroad linear working range and high sensitivity, achieved through a multi-layered structure with unique arrangement of materials.

ACS SENSORS (2021)

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Article Chemistry, Multidisciplinary

Hierarchically Microstructure-Bioinspired Flexible Piezoresistive Bioelectronics

Tao Yang et al.

Summary: The hierarchically microstructure-bioinspired piezoresistive sensor exhibits ultrahigh sensitivity, wide pressure detection range, fast response time, and can monitor human physiological signals and movement states successfully.

ACS NANO (2021)

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Review Chemistry, Multidisciplinary

Flexible and Stretchable Capacitive Sensors with Different Microstructures

Jing Qin et al.

Summary: Sensors that can simulate human skin have gained extensive attention, with flexible capacitive sensors playing a key role in various fields. The design of microstructures is crucial for improving sensitivity, with five commonly used microstructures for pressure sensors and four for strain sensors. The advantages, disadvantages, and practical values of different structures are systematically elaborated to guide the development of advanced flexible and stretchable capacitive sensors.

ADVANCED MATERIALS (2021)

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Article Chemistry, Physical

Towards high-performance linear piezoelectrics: Enhancing the piezoelectric response of zinc oxide thin films through epitaxial growth on flexible substrates

Yongkuan Li et al.

Summary: The study demonstrates that epitaxial growth of undoped ZnO films on flexible substrates can significantly improve the piezoelectric constant and maintain the linearity of the piezoelectric response, mainly due to epitaxial strain. This method has the potential to remove barriers for the application of linear-piezoelectrics.

APPLIED SURFACE SCIENCE (2021)

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Article Engineering, Multidisciplinary

Highly stretchable pressure sensors with wrinkled fibrous geometry for selective pressure sensing with minimal lateral strain-induced interference

Jinzheng Yang et al.

Summary: This study developed a high-performance pressure sensor with periodic wrinkles and fibrous network structure, exhibiting high sensitivity, wide working range, and good mechanical stability. With surface treatment, the sensor achieved long-term reliable sensing, high stretchability, and resistance to lateral strain, suitable for future e-skin applications.

COMPOSITES PART B-ENGINEERING (2021)

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Article Polymer Science

A facile strategy to construct flexible and conductive silk fibroin aerogel for pressure sensors using bifunctional PEG

Jingjing Yuan et al.

Summary: The research modified SF aerogel with PEG to enhance its elasticity and conductivity, as well as to promote the formation of PPy. The study on SF-based conductive aerogel as a pressure sensor showed better sensitivity and good synchronization between pressure and resistance compared to literature reports.

EUROPEAN POLYMER JOURNAL (2021)

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Article Physics, Applied

Flexible and high sensitive capacitive pressure sensor with microstructured electrode inspired by ginkgo leaf

Peng Zhang et al.

Summary: The study developed a capacitive pressure sensor with high sensitivity and stability, which has potential applications in fields such as intelligent robotics and health monitoring.

JOURNAL OF PHYSICS D-APPLIED PHYSICS (2021)

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Article Materials Science, Multidisciplinary

A High-Performance Flexible Piezoresistive Pressure Sensor Features an Integrated Design of Conductive Fabric Electrode and Polyurethane Sponge

Haonan Cheng et al.

Summary: The study focuses on using conductive polyurethane sponge and polyester fabric to create a composite material for flexible pressure sensors, combined with graphene oxide for high sensitivity, wide detection range, and long durability.

MACROMOLECULAR MATERIALS AND ENGINEERING (2021)

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Article Engineering, Electrical & Electronic

Graphene foam-polymer based electronic skin for flexible tactile sensor

Xiaolan Tang et al.

Summary: The impact of static and dynamic pressure on graphene foam-polymer composites was investigated, with dynamic pressure showing higher sensitivity and quicker recovery time compared to static pressure. The sensitivity of the dynamic pressure sensor was found to be almost double that of the static pressure sensor.

SENSORS AND ACTUATORS A-PHYSICAL (2021)

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Review Chemistry, Multidisciplinary

Micro-Nano Processing of Active Layers in Flexible Tactile Sensors via Template Methods: A Review

Hongsen Niu et al.

Summary: Template methods are considered crucial for micro-nano processing in the active layer of flexible tactile sensors, enhancing properties like sensitivity and response time. However, the lack of a perfect system for processing and applicable conditions has slowed down the development and commercialization of these sensors. Despite the obstacles, advancements in various disciplines have laid the groundwork for template methods, fueling continuous progress in flexible tactile sensors.

SMALL (2021)

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Article Chemistry, Physical

Flexible all-textile dual tactile-tension sensors for monitoring athletic motion during taekwondo

Yulong Ma et al.

Summary: A novel smart garment with dual tactile and tension stimulus response is proposed, using composite textile assembly with core-sheath yarn and spacer fabric. Challenges in dual sensing technology are addressed and the potential applications of the technology are demonstrated.

NANO ENERGY (2021)

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Article Materials Science, Multidisciplinary

Wide-Range and High-Stability Flexible Conductive Graphene/Thermoplastic Polyurethane Foam for Piezoresistive Sensor Applications

Xiaozhou Lu et al.

Summary: In this study, a flexible conductive reduced graphene oxide/thermoplastic polyurethane porous foam was proposed for high-pressure range applications. Experimental results demonstrated that the foam exhibited outstanding performance in pressure detection range, sensitivity, response time, and stability, meeting the demands for long-term use in high-pressure range.

ADVANCED MATERIALS TECHNOLOGIES (2021)

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Article Materials Science, Multidisciplinary

High-Performance Flexible Pressure Sensor Based on Controllable Hierarchical Microstructures by Laser Scribing for Wearable Electronics

Qifeng Du et al.

Summary: This study presents a simple and scalable fabrication process for a flexible pressure sensor with high sensitivity and wide detection range. Using silver nanowires coated, laser-ablated hierarchical microstructured polydimethylsiloxane, and an interdigital electrode, the sensor achieves a high sensitivity of 4.48 kPa(-1) and a detection range from 0 to 65 kPa. The device has been successfully applied in measuring arterial pulse, breathing, and static tremors on the human body, demonstrating its promising applications in wearable electronic skins.

ADVANCED MATERIALS TECHNOLOGIES (2021)

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Article Materials Science, Multidisciplinary

Multi-length scale hierarchical architecture overcoming pressure sensing range-speed tradeoff for skin electronics

Qiong Tian et al.

Summary: This study presents a contact architecture combining a unique microstructure and hierarchical scheme to overcome the pressure sensing range-speed tradeoff in flexible pressure sensors. A sensitive piezoresistive pressure sensor with wide sensing range and fast response is demonstrated, utilizing various mechanisms across different length scales. The multi-length scale contact architecture opens a new avenue for advanced flexible pressure sensors, providing a wide range operation without compromising sensitivity and speed.

JOURNAL OF MATERIALS CHEMISTRY C (2021)

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Review Chemistry, Physical

Emulsion templated advanced functional materials from emerging nano building blocks

Chenfei Yao et al.

Summary: The development of emulsion templated functional materials has made significant progress using new building blocks like graphene, transition metal carbides and nitrides (MXenes), and nanocellulose. These materials offer excellent properties and diverse applications in fields such as sensing, energy storage, fire resistance, water purification, and microdroplet transportation.

JOURNAL OF MATERIALS CHEMISTRY A (2021)

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Article Engineering, Electrical & Electronic

Three-Dimensional Printing of a Flexible Capacitive Pressure Sensor Array in the Assembly Network of Carbon Fiber Electrodes and Interlayer of a Porous Polyurethane Dielectric

Ruiqing Li et al.

Summary: This work introduces a facile 3D printing method for a flexible capacitive pressure sensor array, utilizing carbon fiber electrodes, porous polyurethane dielectric, and sacrificial salt microparticles to simplify the manufacturing process while improving sensor sensitivity. The sensor array shows fast response time, good stability, and high pressure resolution, demonstrating potential applications in human motion detection.

ACS APPLIED ELECTRONIC MATERIALS (2021)

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Article Automation & Control Systems

Ultrasensitive Hierarchical Piezoresistive Pressure Sensor for Wide-Range Pressure Detection

Jing Li et al.

Summary: A facile laser-engraving method was proposed to fabricate a flexible multiwalled-carbon-nanotube/poly(dimethylsiloxane) composite-based piezoresistive sensor with hierarchical microstructures, showing high sensitivity and a wide pressure sensing range. The sensor can monitor subtle pressure changes and has promising applications in wearable electronics.

ADVANCED INTELLIGENT SYSTEMS (2021)

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Review Chemistry, Physical

Advances in self-powered triboelectric pressure sensors

Hao Lei et al.

Summary: Self-powered pressure sensors based on triboelectric nanogenerator have gained attention for their potential applications in the Internet of Things. These sensors optimize power consumption and performance. Efforts are ongoing to improve sensing performance to meet practical demands.

JOURNAL OF MATERIALS CHEMISTRY A (2021)

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Article Chemistry, Multidisciplinary

Flexible pressure sensors with high pressure sensitivity and low detection limit using a unique honeycomb-designed polyimide/reduced graphene oxide composite aerogel

Qiang Xu et al.

Summary: The study presents superelastic and highly pressure-sensitive polyimide/reduced graphene oxide aerogel sensors with a unique honeycomb structure, which were designed and fabricated using a bidirectional freezing technique. These sensors exhibit high pressure sensitivity, ultralow detection limit, broad detection range, fast response time, and excellent stability during cycling, showing promising potential applications in harsh environments. The aerogel sensors have been successfully used to detect a full range of human motion, making them attractive for high-performance flexible pressure sensors and wearable electronic devices.

RSC ADVANCES (2021)

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Article Engineering, Multidisciplinary

Biomimetic-inspired micro-nano hierarchical structures for capacitive pressure sensor applications

Chandreswar Mahata et al.

MEASUREMENT (2020)

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Review Chemistry, Multidisciplinary

Ionic Tactile Sensors for Emerging Human-Interactive Technologies: A Review of Recent Progress

Vipin Amoli et al.

ADVANCED FUNCTIONAL MATERIALS (2020)

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Article Materials Science, Multidisciplinary

3D double-faced interlock fabric triboelectric nanogenerator for bio-motion energy harvesting and as self-powered stretching and 3D tactile sensors

Chaoyu Chen et al.

MATERIALS TODAY (2020)

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Review Materials Science, Multidisciplinary

Recent progress on flexible and stretchable piezoresistive strain sensors: From design to application

Lingyan Duan et al.

PROGRESS IN MATERIALS SCIENCE (2020)

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Article Nanoscience & Nanotechnology

Highly Sensitive 1T-MoS2 Pressure Sensor with Wide Linearity Based on Hierarchical Microstructures of Leaf Vein as Spacer

Tingting Yang et al.

ADVANCED ELECTRONIC MATERIALS (2020)

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Article Nanoscience & Nanotechnology

Hierarchically Rough Structured and Self-Powered Pressure Sensor Textile for Motion Sensing and Pulse Monitoring

Mengna Lou et al.

ACS APPLIED MATERIALS & INTERFACES (2020)

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Article Nanoscience & Nanotechnology

Glycine-Chitosan-Based Flexible Biodegradable Piezoelectric Pressure Sensor

Ensieh S. Hosseini et al.

ACS APPLIED MATERIALS & INTERFACES (2020)

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Article Chemistry, Multidisciplinary

Microchannel-Confined MXene Based Flexible Piezoresistive Multifunctional Micro-Force Sensor

Yuyu Gao et al.

ADVANCED FUNCTIONAL MATERIALS (2020)

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Article Chemistry, Multidisciplinary

Light-Boosting Highly Sensitive Pressure Sensors Based on Bioinspired Multiscale Surface Structures

Shixiong Yu et al.

ADVANCED FUNCTIONAL MATERIALS (2020)

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Article Chemistry, Multidisciplinary

Lightweight, Superelastic Boron Nitride/Polydimethylsiloxane Foam as Air Dielectric Substitute for Multifunctional Capacitive Sensor Applications

Roland Yingjie Tay et al.

ADVANCED FUNCTIONAL MATERIALS (2020)

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Article Chemistry, Physical

Core-sheath nanofiber yarn for textile pressure sensor with high pressure sensitivity and spatial tactile acuity

Kun Qi et al.

JOURNAL OF COLLOID AND INTERFACE SCIENCE (2020)

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Article Chemistry, Multidisciplinary

Ultrathin, Biocompatible, and Flexible Pressure Sensor with a Wide Pressure Range and Its Biomedical Application

Yongrok Jeong et al.

ACS SENSORS (2020)

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Article Chemistry, Multidisciplinary

Three-Dimensional Multistack-Printed, Self-Powered Flexible Pressure Sensor Arrays: Piezoelectric Composites with Chemically Anchored Heterogeneous Interfaces

Suk-In Jeong et al.

ACS OMEGA (2020)

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Article Nanoscience & Nanotechnology

Transparent Pressure Sensor with High Linearity over a Wide Pressure Range for 3D Touch Screen Applications

Han Byul Choi et al.

ACS APPLIED MATERIALS & INTERFACES (2020)

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Article Nanoscience & Nanotechnology

A Highly Sensitive and Broad-Range Pressure Sensor Based on Polyurethane Mesodome Arrays Embedded with Silver Nanowires

Guan-Jun Zhu et al.

ACS APPLIED MATERIALS & INTERFACES (2020)

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Article Nanoscience & Nanotechnology

Multimodal Capacitive and Piezoresistive Sensor for Simultaneous Measurement of Multiple Forces

Shuhua Peng et al.

ACS APPLIED MATERIALS & INTERFACES (2020)

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Review Chemistry, Multidisciplinary

Flexible and Epitaxial Metal Oxide Thin Film Growth by Photoreaction Processing for Electrical and Optical Applications

Tetsuo Tsuchiya et al.

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Flexible and Highly Sensitive Pressure Sensors with Surface Discrete Microdomes Made from Self-Assembled Polymer Microspheres Array

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CERAMICS INTERNATIONAL (2020)

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Engineered Microstructure Derived Hierarchical Deformation of Flexible Pressure Sensor Induces a Supersensitive Piezoresistive Property in Broad Pressure Range

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Weavable and stretchable piezoresistive carbon nanotubes-embedded nanofiber sensing yarns for highly sensitive and multimodal wearable textile sensor

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Skin-inspired quadruple tactile sensors integrated on a robot hand enable object recognition

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Stretchable piezoelectric energy harvesters and self-powered sensors for wearable and implantable devices

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Recent advances of wearable and flexible piezoresistivity pressure sensor devices and its future prospects

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A wide linearity range and high sensitivity flexible pressure sensor with hierarchical microstructures via laser marking

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Structure-Property Relationships in Graphene-Based Strain and Pressure Sensors for Potential Artificial Intelligence Applications

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Multilevel Microstructured Flexible Pressure Sensors with Ultrahigh Sensitivity and Ultrawide Pressure Range for Versatile Electronic Skins

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High-Performance Pressure Sensors Based on 3D Microstructure Fabricated by a Facile Transfer Technology

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Flexible Capacitive Pressure Sensor Enhanced by Tilted Micropillar Arrays

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Microstructured Porous Pyramid-Based Ultrahigh Sensitive Pressure Sensor Insensitive to Strain and Temperature

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Highly Sensitive Flexible Piezoresistive Pressure Sensor Developed Using Biomimetically Textured Porous Materials

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Facile Preparation of Hybrid Structure Based on Mesodome and Micropillar Arrays as Flexible Electronic Skin with Tunable Sensitivity and Detection Range

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Flexible Pressure-Sensitive Contact Transistors Operating in the Subthreshold Regime

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Development of a Highly Sensitive, Broad-Range Hierarchically Structured Reduced Graphene Oxide/PoIyHIPE Foam for Pressure Sensing

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Capacitive Pressure Sensor with Wide-Range, Bendable, and High Sensitivity Based on the Bionic Komochi Konbu Structure and Cu/Ni Nanofiber Network

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Skin-inspired flexible and high-sensitivity pressure sensors based on rGO films with continuous-gradient wrinkles

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Robust and Wearable Pressure Sensor Assembled from AgNW-Coated PDMS Micropillar Sheets with High Sensitivity and Wide Detection Range

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Highly Sensitive Wearable Pressure Sensors Based on Three-Scale Nested Wrinkling Microstructures of Polypyrrole Films

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Flexible Ferroelectric Sensors with Ultrahigh Pressure Sensitivity and Linear Response over Exceptionally Broad Pressure Range

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Wood Derived Composites for High Sensitivity and Wide Linear-Range Pressure Sensing

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BIOMED RESEARCH INTERNATIONAL (2018)

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Fracture response of adhesive joints reinforced with aligned multi-walled carbon nanotubes using an external electric field

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High-Performance Piezoelectric Nanogenerators with Imprinted P(VDF-TrFE)/BaTiO3 Nanocomposite Micropillars for Self-Powered Flexible Sensors

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An overview of electrospun nanofibers and their application in energy storage, sensors and wearable/flexible electronics

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Large-Area All-Textile Pressure Sensors for Monitoring Human Motion and Physiological Signals

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One-pot preparation of porous piezoresistive sensor with high strain sensitivity via emulsion-templated polymerization

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COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING (2017)

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High-Performance Piezoresistive Electronic Skin with Bionic Hierarchical Microstructure and Microcracks

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Large-Area Cross-Aligned Silver Nanowire Electrodes for Flexible, Transparent, and Force-Sensitive Mechanochromic Touch Screens

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Flexible and Highly Sensitive Pressure Sensors Based on Bionic Hierarchical Structures

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Enhancing Performance of Triboelectric Nanogenerator by Filling High Dielectric Nanoparticles into Sponge PDMS Film

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Highly Sensitive, Flexible, and Wearable Pressure Sensor Based on a Giant Piezocapacitive Effect of Three-Dimensional Microporous Elastomeric Dielectric Layer

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Large-Area Compliant, Low-Cost, and Versatile Pressure-Sensing Platform Based on Microcrack-Designed Carbon Black@Polyurethane Sponge for Human-Machine Interfacing

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High Sensitivity, Wearable, Piezoresistive Pressure Sensors Based on Irregular Microhump Structures and Its Applications in Body Motion Sensing

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Flexible Capacitive Tactile Sensor Based on Micropatterned Dielectric Layer

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Highly Sensitive Pressure Sensor Based on Bioinspired Porous Structure for Real-Time Tactile Sensing

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Flexible Transparent Iontronic Film for Interfacial Capacitive Pressure Sensing

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Fabrication and characterisation of field-effect transistor-type pressure sensor with metal-oxide-semiconductor/microelectromechanical systems processes

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Micro & Nano Letters (2015)

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NANOSCALE (2015)

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Flexible suspended gate organic thin-film transistors for ultra-sensitive pressure detection

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Mimosa-Inspired Design of a Flexible Pressure Sensor with Touch Sensitivity

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Transparent Triboelectric Nanogenerators and Self-Powered Pressure Sensors Based on Micropatterned Plastic Films

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Hierarchical Co3O4@Ni-Co-O Supercapacitor Electrodes with Ultrahigh Specific Capacitance per Area

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PHYSIOLOGICAL MEASUREMENT (2010)

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