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Article
Chemistry, Physical
Chaohui Tian et al.
Summary: A novel non-toxic redox couple of SO42-/SO32- is introduced to create a stretchable, flexible gel thermoelectric device with a high Seebeck coefficient of 1.63 mV K-1 at the optimal redox couple concentration of 0.1 M. The hybrid structure formed between PEDOT: PSS and SO42-/SO32-ion-promoted crosslinking PVA network contributes to the superior tensile/compressive stress and deformation at break of the hydrogel electrolyte. By doping additional electrolyte ions, the gel exhibits favorable ionic conductivity and thermoelectric performance. Moreover, the PVA-SO4/3 2-hydrogel demonstrates the ability to harvest biothermal energy for operating small electronics at body temperature, showing potential for green sustainable self-powered wearables.
Article
Chemistry, Applied
Yanpeng Cheng et al.
Summary: In this study, high-strength, transparent, conductive, and anti-freezing organohydrogels were prepared through radical polymerization. These organohydrogels exhibited high strength, stretchability, and ionic conductivity, and remained flexible and conductive at low temperatures.
CARBOHYDRATE POLYMERS
(2022)
Article
Nanoscience & Nanotechnology
Shanshan Zhang et al.
Summary: MXene-based composite conductive aerogels have been extensively studied for wearable pressure sensors. In this work, a 3D porous Ti3C2Tx MXene/PEDOT:PSS composite aerogel was fabricated using the Cu-assisted electrogelation method. The fabricated pressure sensor demonstrated high sensitivity, fast response ability, and excellent stability. Additionally, a high-resolution pressure sensor microarray was successfully prepared, which can be attached to a robotic fingertip for tactile sensing.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Engineering, Environmental
Jiahui Huang et al.
Summary: A new multilayer MXene initiator is reported in this study, which can generate hydroxyl radical species and initiate the polymerization of a series of vinyl monomers. This initiator can crosslink with cationic monomers to form high-quality composite hydrogels, displaying high elasticity, conductivity, and self-healing performance.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Materials Science, Composites
Yichuan Zhang et al.
Summary: In this study, the trade-off between thermoelectric (TE) and mechanical (ME) performances in flexible polycarbonate (PC)/single-walled carbon nanotube (SWCNT) composites was successfully decoupled via interfacial adjustment. The obtained composite exhibited improved TE and ME performances by enhancing interfacial affinity and electrical conductivity.
COMPOSITES SCIENCE AND TECHNOLOGY
(2022)
Article
Nanoscience & Nanotechnology
Xuebiao Li et al.
Summary: The waste heat exhaled by human bodies, which is often ignored, can be converted into electric energy for use in wearable medical devices. A dual-network poly(vinyl alcohol)/gelatin gel thermogalvanic device with outstanding low-temperature durability and antidrying capacity has been developed. By limiting hydrogen bonding between water molecules using a special solvent, physiological data can be converted into electrical impulses for respiratory monitoring.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Materials Science, Composites
Jingfei Zhang et al.
Summary: Ionic-conductive hydrogel sensors with ultrahigh thermoelectric output power were designed in this study. The optimized hydrogel exhibited excellent stretchability, sensitivity, and fast response time. The observed ionic thermovoltage and power density were 34.27 mV K-1 and 730 mW m(-2), respectively.
COMPOSITES SCIENCE AND TECHNOLOGY
(2022)
Article
Chemistry, Physical
Renyun Zhang et al.
Summary: This article presents a strategy for human-computer interaction (HCI) that utilizes the triboelectricity of the human body, eliminating physical function disabilities and enhancing accessibility for disabled individuals. The HCI approach has been used for text inputs, graphical inputs, and mimicked mouse functions, achieving an accuracy of approximately 98.4% for text inputs obtained directly from handwriting with the assistance of deep learning. The findings provide a new approach for HCI and demonstrate the feasibility of multiple interaction modes.
Article
Engineering, Environmental
Meng Wu et al.
Summary: This study develops an ionic conductive nanocomposite hydrogel with ultra stretchability and self-evolving sensing functions, which can be used as an intelligent human-device interface for recognizing complex human behaviors.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Multidisciplinary
Xingyi Dai et al.
Summary: Braille recognition is crucial for visually impaired and blind individuals, and the development of a self-powered Braille recognition sensor can greatly improve their access to information and quality of life.
MATERIALS HORIZONS
(2022)
Article
Chemistry, Physical
Yang Liu et al.
Summary: This study investigates the effect of solvents on the thermogalvanic (TG) performance and demonstrates a strong reverse correlation between solvent Gutmann donor numbers (DNs) and TG cell Seebeck coefficients. The researchers also identify the origin of this correlation as the difference in entropy contributions caused by changing solvation shell sizes due to the addition of organic solvents. This work provides a new perspective for enhancing TG performance and can be applied to other electrolyte systems.
JOURNAL OF MATERIALS CHEMISTRY A
(2022)
Article
Chemistry, Multidisciplinary
Xuecheng Qu et al.
Summary: The newly developed safe dielectric elastomer Braille device, actuated by a triboelectric nanogenerator, is easy to fabricate and affordable, enabling Braille dot matrix display for the blind. This innovation holds the potential to provide the visually impaired with a portable Braille e-book in the future.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Article
Multidisciplinary Sciences
Yuxiang Shi et al.
Summary: The proposed self-powered, highly sensitive ET system based on TENG has potential applications in virtual reality and augmented reality systems.
Article
Chemistry, Physical
Xuan Zhao et al.
Summary: The tactile perception of fine textures in humans is mediated by fingertip skin, which is crucial for obtaining environmental information and manipulating objects precisely. Electronic skins based on triboelectric nanogenerator (TENG) have shown impressive applications in fine texture recognition by accurately mapping surface textures to electrical signals and revealing physical information. The fingerprint-inspired electronic skin (FE-skin) developed in this study can effectively detect and identify different textures by mimicking human fingerprints' morphology, achieving high accuracy rates in texture recognition through processing electrical signals with artificial neural networks. This technology demonstrates TENG's potential superiority in bionic tactile perception and has broad application prospects in humanoid robots, intelligent prostheses, and precise human-machine interaction.
Article
Chemistry, Physical
Zhouyue Lei et al.
Summary: This study introduces double chemically crosslinked networks to address the mechanical challenges of thermocells while also improving power density. The newly designed thermocell shows large stretchability, impressive strength, extraordinary toughness, and a boosted output power density.
Article
Chemistry, Multidisciplinary
Yuhang Ye et al.
ADVANCED FUNCTIONAL MATERIALS
(2020)
Article
Chemistry, Physical
Yang Gao et al.
JOURNAL OF MATERIALS CHEMISTRY A
(2020)
Article
Chemistry, Multidisciplinary
Sai Kishore Ravi et al.
MATERIALS HORIZONS
(2020)
Article
Chemistry, Multidisciplinary
Yunzhi Ling et al.
Article
Chemistry, Multidisciplinary
Sai Kishore Ravi et al.
ADVANCED MATERIALS
(2018)
Article
Chemistry, Multidisciplinary
Seiichi Takamatsu et al.
ADVANCED MATERIALS
(2016)
