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Article
Engineering, Environmental
Peng Wang et al.
Summary: Flexible bifunctional sensors that mimic human skin function have important applications in intelligent human-machine interaction. This sensor has ultrathin and flexible design, and can measure pressure-induced supercapacitance and temperature-induced resistance without interference. It has high sensitivity and a wide temperature range, as well as humidity inertness, waterproof ability and air permeability, making it suitable for wearable healthcare monitoring.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Multidisciplinary
Chuan Ning et al.
Summary: Respiration is a vital sign that can be used for early illness diagnosis and physiological monitoring. This study develops a helical fiber strain sensor and a smart wearable real-time respiratory monitoring system, which can measure key breathing parameters and have implications in disease prevention and medical diagnosis.
Article
Chemistry, Multidisciplinary
Junwen Zhong et al.
Summary: Researchers have developed a smart face mask that integrates an ultra-thin self-powered pressure sensor and a compact readout circuit for monitoring breath information wirelessly. This lightweight and portable mask shows great potential for various applications.
ADVANCED MATERIALS
(2022)
Article
Multidisciplinary Sciences
Hong Wang et al.
Summary: This paper investigates the charge carriers and transfer mechanisms of liquid-solid triboelectric nanogenerator, as well as its application in filtration efficiency of melt-blown nonwoven fabrics. Through triboelectric charging treatment, a filtration efficiency as high as 96.8% was achieved. The study reveals the existence of both positive and negative charge densities on the melt-blown nonwoven fabrics, indicating the involvement of both electron and ion transfers, with electron transfer playing a more significant role in charge generation.
SCIENTIFIC REPORTS
(2022)
Review
Materials Science, Multidisciplinary
Junyi Cai et al.
Summary: Accurate and real-time detection of human body temperature changes is crucial. Traditional thermometers have limitations, and there is a need to develop more breathable, deformable, and economically available functional materials. Fiber materials have attracted attention due to their soft, flexible, and porous features.
ADVANCED MATERIALS TECHNOLOGIES
(2022)
Article
Multidisciplinary Sciences
Yang Nan et al.
Summary: This study investigates the contact electrification mechanism and properties at a water/polymer interface using first-principle calculations. The results suggest that the gap between the highest occupied and lowest unoccupied molecular orbitals of polymers determines the extent of contact electrification. Additionally, the study proposes a new model to explain the transfer of charges at the atomic level.
Article
Chemistry, Multidisciplinary
Miaomiao Zhu et al.
Summary: A novel interface protective strategy is reported in this article to develop intrinsically self-healing fibrous membranes with a bionic confined structure, which are further assembled into an all-fiber structured electronic skin. The electronic skin is multifunctional with self-powering, self-healing, breathability, stretchability, and thermochromism functionalities.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Materials Science, Textiles
Ziheng Pan et al.
Summary: This study reports a novel electret polypropylene/electret masterbatch composite material with enhanced charge stability using water electret charging, which provides improved filtration efficiency and tuned pore size. The charge stored inside the fibers is insensitive to temperature and humidity due to the process of charging by friction and hot air drying.
JOURNAL OF THE TEXTILE INSTITUTE
(2022)
Article
Engineering, Electrical & Electronic
Zengyuan Wang et al.
Summary: This paper investigates the filtration mechanism and charge characteristic of melt-blown polypropylene electret fabric prepared using the hydrocharging technique. It is found that the filtration efficiency is correlated to the trapped charge, and high filtration performance requires the use of deionized water with high resistivity and maintaining suitable water spray pressure and drying temperature. The melt-blown polypropylene electret fabric exhibits the coexistence of positive and negative charges and the characteristic of an electric double layer, with significantly lower surface potential compared to corona charged electret fabric.
JOURNAL OF ELECTROSTATICS
(2022)
Article
Chemistry, Physical
Shengying Cai et al.
Summary: The graphene fiber fabric, as a sensing patch, offers high sensitivity and breathability, opening up new possibilities for electrochemical monitoring.
Review
Chemistry, Multidisciplinary
Miaomiao Zhu et al.
Summary: This Minireview summarizes the self-healing mechanisms, design principles, and preparation strategies of self-healing fibrous membranes (SFMs). SFMs, featuring porous structure and self-healing capability, are more challenging to develop due to their complex healing mechanism and microstructure. The characteristics of SFM self-healing performance, insights and perspectives on SFM preparation and healing mechanisms, as well as remaining challenges and future developments are discussed, with the ultimate goal of designing highly efficient self-healing and superstable fibrous membranes.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Engineering, Chemical
Xing Zhang et al.
Summary: Fibrous air filters with both charge stability and excellent filtration performance are challenging to construct. This study presents hydro-charged air filters (HCAFs) that demonstrate high-efficiency removal of sodium chloride and paraffin oil aerosol particles for a long period of time. The HCAFs show significantly enhanced filtration efficiency for these particles and exhibit charge stability and thermal resistance, making them suitable for long-term filtration. The successful fabrication of HCAFs provides a promising approach for hydro charge technology and offers guidance for next-generation commercial air filters.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Materials Science, Multidisciplinary
Shanshan Ding et al.
Summary: In this study, a wearable humidity-pressure sensor based on an all-nanofiber membrane is fabricated. The sensor exhibits high sensitivity, breathability, and biosafety. It has fast response time and stability, making it suitable for skin and wound applications. The sensor can detect various human activities in real-time.
MACROMOLECULAR MATERIALS AND ENGINEERING
(2022)
Article
Chemistry, Physical
Bin Wang et al.
Summary: This study presents a fabrication method for a stretchable and breathable on-skin flexible pressure sensor with high sensitivity and round-the-clock antibacterial activity. The sensor is constructed by integrating silver phosphate nanoparticles modified halloysite nanotubes into a thermoplastic polyurethane matrix via electrospinning. The resulting sensor exhibits high sensitivity, fast response time, low detection limit, good air permeability, and mechanical stability, along with round-the-clock antibacterial activity and pressure location recognition capability.
APPLIED CLAY SCIENCE
(2022)
Article
Chemistry, Analytical
Hao Zheng et al.
Summary: This paper presents a breathable flexible glucose biosensor with excellent flexibility and moisture/air permeability. The biosensor's electrodes are embedded in a flexible porous nanofiber polyimide substrate through electrospinning, providing breathability and preventing electrode detachment. The air-permeable film substrate was obtained by optimizing manufacturing parameters, and inkjet printing was used to embed three electrodes. The fabricated biosensor exhibits stable performance and precise glucose detection in a linear range of 0-25 mM.
MICROCHEMICAL JOURNAL
(2022)
Article
Engineering, Electrical & Electronic
Xingchen Ma et al.
Summary: This study presents a disposable sensor based on a biodegradable polylactic acid piezoelectret film, which exhibits significant compressive and tensile sensitivities. The sensor can be used for pressure and tensile sensing in wearable and implantable electronics. The biodegradable nature of the core material makes it environmentally friendly and suitable for sustainable development.
SENSORS AND ACTUATORS A-PHYSICAL
(2022)
Article
Multidisciplinary Sciences
Shiquan Lin et al.
Summary: The study investigates the magnetic field effect on electron transfer at the liquid-solid interface during contact electrification and proposes a spin conversion model. The results show that magnetic fields can promote electron transfer at O-2-containing liquid-solid interfaces, with higher concentrations of O-2 in the liquids increasing the effect and elevated temperatures decreasing it. The findings highlight the importance of considering electron spin in contact electrification and provide insights into the mechanism of liquid-solid contact electrification.
NATURE COMMUNICATIONS
(2022)
Article
Chemistry, Multidisciplinary
Kaijun Zhang et al.
Summary: This study proposes a smart face mask that can monitor and analyze respiratory signals, providing early warning for chronic respiratory diseases. The smart face mask is easily fabricated, comfortable to wear, and has stable output performance in real wearable conditions. It achieves a high accuracy of 95.5% in distinguishing healthy individuals from those with chronic respiratory diseases using a machine learning algorithm.
Article
Polymer Science
Xin Li et al.
Summary: Polymer electrets have great potential in electromechanical devices due to their light weight, large quasi-piezoelectric sensitivity, and excellent flexibility. A permanent and macroscopic electric field exists on the surface, and various charging methods can be used. Current applications include power harvesting, sensors, transistors, and biomedicine.
JOURNAL OF APPLIED POLYMER SCIENCE
(2021)
Article
Chemistry, Physical
Zhaoyang Li et al.
Summary: Understanding the stability and decay of surface electrostatic charges in different liquid environments is crucial for device reliability and preventing damage. Results show that ionization or polarity of liquid molecules determines electrostatic charge neutralization, and adding small amount of ionizable matter in non-polar and aprotic liquids can prevent charge accumulation. Moreover, an air-bubble-structured electret is designed to enhance water-resistance against surface electrostatic charges.
Article
Chemistry, Physical
Jihoon Chung et al.
Summary: Recent studies have explored the generation of electricity using water droplets, with a substantial power output of 50.1 Wm-2. The mechanism behind this high output is attributed to charge separation in water caused by movement and impact, leading to accumulation of electrical charge which generates high electric power output when coming in contact with a metal surface. These findings provide a basis for understanding the correlation between charge separation and electricity generation using water.
Article
Chemistry, Multidisciplinary
Xiao Peng et al.
Summary: This study presents a real-time respiratory monitoring and obstructive sleep apnea-hypopnea syndrome (OSAHS) diagnosis system using a breathable, highly sensitive, and self-powered electronic skin (e-skin) based on a triboelectric nanogenerator (TENG). The e-skin has high power density, pressure sensitivity, stability, and air permeability, enabling energy autonomy and accurate real-time respiration monitoring simultaneously.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Review
Chemistry, Multidisciplinary
Yuanjie Su et al.
Summary: TENG-based self-powered respiration monitoring is widely adopted due to its features of biocompatibility, comfort, low-cost and high sensitivity, enabling precise and continuous monitoring of physiological respiration behaviors and exhaled chemical regents for personalized health care.
ADVANCED MATERIALS
(2021)
Review
Biochemical Research Methods
Yuemeng Cheng et al.
Summary: Wearable devices, with wearable sensors as functional components, have been widely used in medical and health applications, monitoring specific parameters and improving the quality and feasibility of medical treatment. By detecting human movement and maintaining high adaptability to the human body, wearable devices can evaluate body movement, monitor individual health status, evaluate environmental quality, and obtain more accurate environmental information. This review aims to provide insights and directions for the future development and broader application of wearable devices in various fields.
ANALYTICAL AND BIOANALYTICAL CHEMISTRY
(2021)
Article
Biophysics
Zhaoyang Li et al.
Summary: Electromechanical biomonitoring is crucial for human health evaluation, disease prevention, and quality of life improvement. Nanogenerators-based flexible electronics, combined with AI, 5G, and IoT technologies, are creating intelligent systems capable of analyzing, transmitting, and making decisions. The field has made significant advancements in understanding nanogenerators, applications of flexible electronics, and discussing future development trends.
BIOSENSORS & BIOELECTRONICS
(2021)
Article
Chemistry, Analytical
Jie Wang et al.
Article
Chemistry, Physical
Chao Liu et al.
Article
Engineering, Electrical & Electronic
Aravind Narain Ravichandran et al.
IEEE SENSORS JOURNAL
(2020)
Review
Biotechnology & Applied Microbiology
Jayoung Kim et al.
NATURE BIOTECHNOLOGY
(2019)
Article
Chemistry, Multidisciplinary
Junwen Zhong et al.
Article
Materials Science, Multidisciplinary
Zhong Lin Wang et al.
Article
Materials Science, Multidisciplinary
Xia He et al.
FRONTIERS OF MATERIALS SCIENCE
(2019)
Article
Chemistry, Physical
Huayang Li et al.
Article
Chemistry, Multidisciplinary
Shaobo Gong et al.
ADVANCED FUNCTIONAL MATERIALS
(2019)
Article
Chemistry, Physical
Ran Cao et al.
Article
Multidisciplinary Sciences
Martin Olsen et al.
SCIENTIFIC REPORTS
(2018)
Article
Nanoscience & Nanotechnology
Akihito Miyamoto et al.
NATURE NANOTECHNOLOGY
(2017)
Article
Multidisciplinary Sciences
Xiao Huiming et al.
SCIENTIFIC REPORTS
(2017)
Article
Chemistry, Multidisciplinary
Wenbo Li et al.
ADVANCED FUNCTIONAL MATERIALS
(2016)
Review
Chemistry, Multidisciplinary
Morteza Amjadi et al.
ADVANCED FUNCTIONAL MATERIALS
(2016)
Article
Engineering, Electrical & Electronic
Huiming Xiao et al.
JOURNAL OF ELECTROSTATICS
(2014)
Review
Biotechnology & Applied Microbiology
Amay J. Bandodkar et al.
TRENDS IN BIOTECHNOLOGY
(2014)
Article
Chemistry, Physical
Xiaonan Wen et al.
Article
Multidisciplinary Sciences
Dongwhi Choi et al.
SCIENTIFIC REPORTS
(2013)
Article
Engineering, Electrical & Electronic
GA Mekishev et al.
JOURNAL OF ELECTROSTATICS
(2005)
