Highly Sensitive Multifunctional Electronic Skin Based on Nanocellulose/MXene Composite Films with Good Electromagnetic Shielding Biocompatible Antibacterial Properties DOI
Dong-Ning Liu,

Yujiao Gao,

Yiheng Song

et al.

Biomacromolecules, Journal Year: 2021, Volume and Issue: 23(1), P. 182 - 195

Published: Dec. 10, 2021

Electronic skin has aroused extensive research interest due to high similarity with human skin. Realizing a multifunctional electronic that is highly consistent functions and endowed more other now urgent need important challenge. Here, we use 2,2,6,6-tetramethylpiperidinyl-1-oxyl (TEMPO)-oxidized cellulose nanofibril (TOCN) dispersion conductive Ti3C2TX prepare TOCN/Ti3C2TX composite film through vacuum-assisted filtration. The obtained imitating the nacre-like lamellar structure of natural shells good mechanical properties (124.6 MPa tensile strength). Meanwhile, also showed excellent electromagnetic shielding performance (36 dB), biocompatibility, antibacterial properties. In addition, piezoresistive sensor assembled from exhibited sensitivity (11.6 kPa-1), fast response recovery time (≤10 ms), ultralow monitoring limit (0.2 Pa), long-term stability (>10 000 cycles). It could detect daily activities such as finger bent, chewing, so on.

Language: Английский

Low‐Molecular‐Weight Supramolecular‐Polymer Double‐Network Eutectogels for Self‐Adhesive and Bidirectional Sensors DOI
Yujia Liang, Kaifang Wang, Jingjing Li

et al.

Advanced Functional Materials, Journal Year: 2021, Volume and Issue: 31(45)

Published: Aug. 8, 2021

Abstract Ionic conducting eutectogels have attracted enormous attention as an alternative to the conventional temperature‐intolerant hydrogels and costly ionic liquid gels in constructing flexible electronic devices. However, current prepared via cross‐linked polymer or low‐molecular‐weight gelators suffer from limited stretchability insufficient surface‐adaptive adhesion. Herein, a supramolecular network is introduced into covalent eutectogel architecture, novel supramolecular‐polymer double‐network (SP‐DN) strategy demonstrated fabricate conductive SP‐DN with high (>4000% elongation) toughness (≈800 J m −2 ), well self‐healing, self‐adhesive anti‐freezing/anti‐drying characteristics. These unique features lead successful realization of wearable strain sensors, which can conformally deform skin dynamically monitor body movements sensitivity long‐term stability over wide temperature range (−40 60 °C). Furthermore, sensors accurately detect along two opposite directions (bend up bend down), are rarely reported literature. Distinct widely explored (P‐DN) hydrogels, developed platform capable well‐regulating molecular‐scale noncovalent interactions, providing paradigm for creation smart soft materials versatile performance environmental adaptability.

Language: Английский

Citations

149
A highly conductive hydrogel driven by phytic acid towards a wearable sensor with freezing and dehydration resistance DOI
Qin Zhang, Xin Liu, Jiawei Zhang

et al.

Journal of Materials Chemistry A, Journal Year: 2021, Volume and Issue: 9(39), P. 22615 - 22625

Published: Jan. 1, 2021

Phytic acid-doped hydrogels simultaneously possessed high conductivity, freezing resistance, water retention, and antibacterial properties.

Language: Английский

Citations

129
Molecularly Engineered Zwitterionic Hydrogels with High Toughness and Self-Healing Capacity for Soft Electronics Applications DOI
Si Yu Zheng,

Shihua Mao,

Jingfeng Yuan

et al.

Chemistry of Materials, Journal Year: 2021, Volume and Issue: 33(21), P. 8418 - 8429

Published: Oct. 19, 2021

Zwitterionic hydrogels have attracted tremendous interest due to their densely charged network, ultralow fouling characteristics, and excellent biocompatibility. However, the unsatisfactory mechanical performance of zwitterionic gels limits practical applications. Here, we developed a new class from structurally ameliorated sulfobetaine monomer, 3-(1-(4-vinylbenzyl)-1H-imidazol-3-ium-3-yl)propane-1-sulfonate (VBIPS). The incorporated benzene imidazole greatly enhance tensile toughness fracture gel, which are 40 60 times higher than those conventional hydrogel, respectively. An obvious crack blunting occurs during extension. In situ microscopic observation reveals that outstanding originates formation two-phase structure at room temperature, with an contrast association energy. properties gel can be well-tuned by changing pH, self-healing is achieved acid treatment. VBIPS also possesses short-term antifouling attached bacteria in longer timescale easily released via salt To expand application potentials, ionogel prepared soaking ionic liquids, flexible, antifreezing, used as strain sensor. This work provides molecular strategy toughen hydrogels, should broaden applications diverse fields.

Language: Английский

Citations

129
Reaction modifier system enable double-network hydrogel electrolyte for flexible zinc-air batteries with tolerance to extreme cold conditions DOI
Yanan Zhang,

Hanglan Qin,

Alfred Mensah

et al.

Energy storage materials, Journal Year: 2021, Volume and Issue: 42, P. 88 - 96

Published: July 19, 2021

Language: Английский

Citations

128
Research progress on double-network hydrogels DOI
Xinxin Huang, Jingchao Li, Jing Luo

et al.

Materials Today Communications, Journal Year: 2021, Volume and Issue: 29, P. 102757 - 102757

Published: Sept. 4, 2021

Language: Английский

Citations

126
Stretchable on-skin touchless screen sensor enabled by ionic hydrogel DOI
Tianxing Feng,

Dan Ling,

Chaoyue Li

et al.

Nano Research, Journal Year: 2023, Volume and Issue: 17(5), P. 4462 - 4470

Published: Dec. 29, 2023

Language: Английский

Citations

99
Tough, antifreezing, and conductive double network zwitterionic-based hydrogel for flexible sensors DOI
Yuanquan Liu, Qiuyan Liu,

Li Zhong

et al.

Chemical Engineering Journal, Journal Year: 2022, Volume and Issue: 452, P. 139314 - 139314

Published: Sept. 19, 2022

Language: Английский

Citations

98
Flexible and wearable strain sensors based on conductive hydrogels DOI
Jiawei Zhang, Qin Zhang, Xin Liu

et al.

Journal of Polymer Science, Journal Year: 2022, Volume and Issue: 60(18), P. 2663 - 2678

Published: Feb. 18, 2022

Abstract In recent years, the field of flexible electronics has been thriving in academic achievements. Among them, hydrogel‐based strain sensors possess some characteristic advantages stretchability, flexibility, stickiness and regulable modulus elasticity, thus they are more likely to attach human skin surfaces objects. Compared traditional sensors, hydrogels can overcome shortcomings toughness elasticity. Therefore, suitable serve as core materials wearable electronics. Hydrogel‐based a typical kind hydrogel electronics, categories resistance capacitive which primarily used for real‐time monitoring motions. This review mainly introduces up‐to‐date relative literatures sensors.

Language: Английский

Citations

76
Transparent stretchable hydrogel sensors: materials, design and applications DOI Open Access
Yinping Liu, Lulu Wang,

Yuanyuan Mi

et al.

Journal of Materials Chemistry C, Journal Year: 2022, Volume and Issue: 10(37), P. 13351 - 13371

Published: Jan. 1, 2022

Illustration of strain-, pressure-, temperature-, humidity- and gas sensor.

Language: Английский

Citations

74
High-Sensitivity and Extreme Environment-Resistant Sensors Based on PEDOT:PSS@PVA Hydrogel Fibers for Physiological Monitoring DOI
Wanhui Shi, Ziwei Wang, Hua Song

et al.

ACS Applied Materials & Interfaces, Journal Year: 2022, Volume and Issue: 14(30), P. 35114 - 35125

Published: July 21, 2022

The rapid development of flexible electronic devices has caused a boom in researching sensors based on hydrogels, but most the can only work at room temperature, and they are difficult to adapt extremely cold or dry environments. Here, hydrogel fibers (PEDOT:PSS@PVA) with excellent resistance extreme environments have been prepared by adding glycerin (GL) mixture poly(vinyl alcohol) (PVA) poly 3,4-dioxyethylene thiophene:polystyrene sulfonic acid (PEDOT:PSS) because GL molecules form dynamic hydrogen bonds an elastic matrix PVA molecules. It is found that sensor exhibits very good flexibility mechanical strength, ultimate tensile strength reach up 13.76 MPa when elongation break 519.9%. Furthermore, possess water retention performance low-temperature resistance. After being placed atmospheric environment for 1 year, still shows flexibility. At low temperature -60 °C, stably endure 1000 repeated stretches shrinks (10% elongation). In addition response large strain, this fiber also detect small strains as 0.01%. proved complex human movements such knuckle bending, vocalization, pulse, others be monitored perfectly sensor. above results mean PEDOT:PSS@PVA great application prospects physiological monitoring.

Language: Английский

Citations

71