Self-Healing and Highly Stretchable Gelatin Hydrogel for Self-Powered Strain Sensor.

Published on Jan 8, 2020in ACS Applied Materials & Interfaces8.758
· DOI :10.1021/ACSAMI.9B18646
Jie Wang21
Estimated H-index: 21
(USTB: University of Science and Technology Beijing),
Fu Tang15
Estimated H-index: 15
(USTB: University of Science and Technology Beijing)
+ 3 AuthorsLidong Li32
Estimated H-index: 32
(USTB: University of Science and Technology Beijing)
Sources
Abstract
Hydrogels that electronically respond to mechanical changes can be used as strain sensors. However, these systems usually require external power to convert changes in strain into electrical signals. Here, a self-powered strain sensor is developed based on a gelatin-based hydrogel and a galvanic cell. In the hydrogel matrix, hydrophobic interactions and hydrogen bonding between tannic acid and gelatin give the prepared hydrogel great potential for elongation (1600%). The hydrogel also has a rapid self-healing ability (within 1s) and high self-healing efficiency (95%). The hydrogel operates as an efficient electrolyte material and forms a hydrogel battery when assembled with a thin layer of zinc and an air electrode. This device had excellent tolerance to large compressional strain without sacrificing open circuit voltage. On the basis of this hydrogel battery, we fabricated a self-powered strain sensor by connecting the hydrogel battery to a fixed resistor to form a closed loop. By converting its chemical ...
📖 Papers frequently viewed together
2020
6 Authors (Songjia Han, ..., Chuan Liu)
7 Citations
10 Authors (Jianfei Tie, ..., Hong Xu)
5 Citations
8 Authors (Chen Yuanyuan, ..., Huining Xiao)
24 Citations
References0
Newest
Cited By30
Newest
#1Zixuan Zhou (Tongji University)
#2Zhirui He (Tongji University)
Last. Weizhong Yuan (Tongji University)H-Index: 29
view all 5 authors...
Abstract Conductive, flexible and stretchable hydrogel sensors have attracted a lot of interest in human-machine interfaces, medical monitoring, and soft robotics. However, there are still have great challenges in the preparation of conductive hydrogels with self-adhesive, self-power and antibacterial properties. In order to meet the requirements of high sensitivity, convenient carrying and anti-allergic, so as to overcome the problems of traditional sensors, such as non-stickiness, absolute dep...
Source
#1Priya (NITJ: Dr. B. R. Ambedkar National Institute of Technology Jalandhar)H-Index: 7
#2Amit Kumar Sharma (NITJ: Dr. B. R. Ambedkar National Institute of Technology Jalandhar)H-Index: 9
Last. Saiyam Arora (NITJ: Dr. B. R. Ambedkar National Institute of Technology Jalandhar)H-Index: 2
view all 6 authors...
Abstract Stretchabiliy, transparency and self-healing ability of bio-based materials are some of the important features for their utilization in the biomedical field. Recently, robust self-healing super porous materials possessing multifunctional nature have raised enormous interest among the researchers in order to design different materials which can be used in industrial, biomedical and pharmaceutical fields. Herein, a novel self-healing, stretchable and transparent superabsorbent film based ...
1 CitationsSource
Jul 1, 2021 in ICRA (International Conference on Robotics and Automation)
#1David Hardman (University of Cambridge)
#2Josie Hughes (MIT: Massachusetts Institute of Technology)H-Index: 8
Last. Fumiya Iida (University of Cambridge)H-Index: 32
view all 5 authors...
The ability to 3D print soft materials with integrated strain sensors enables significant flexibility for the design and fabrication of soft robots. Hydrogels provide an interesting alternative to traditional soft robot materials, allowing for more varied fabrication techniques. In this work, we investigate the 3D printing of a gelatin-glycerol hydrogel, where transglutaminase is used to catalyse the crosslinking of the hydrogel such that its material properties can be controlled for 3D printing...
Source
#1Jing Liao (SCUT: South China University of Technology)H-Index: 3
#2Hongjie Dai (SWU: Southwest University)H-Index: 193
Last. Huihua Huang (SCUT: South China University of Technology)H-Index: 25
view all 3 authors...
Abstract Carboxymethyl chitin hydrogels with different degree of substitution (DS) were prepared by the homogeneous carboxymethylation of chitin extracted from Hericium erinaceus residue. The effect of DS on gel structure and property were studied. Results showed that the DS of carboxymethyl chitin hydrogels can be increased by increasing the amount of sodium chloroacetate. The equilibrium swelling degree and pH swelling sensitivity of the hydrogels were enhanced as the increase of DS. Zeta pote...
Source
#1Qinhua Wang (Fujian Agriculture and Forestry University)H-Index: 1
#1Qinhua Wang (UNB: University of New Brunswick)H-Index: 8
Last. Yonghao Ni (Fujian Agriculture and Forestry University)H-Index: 39
view all 8 authors...
Abstract Mechanical adaptability, great wearability, application stability, and self-powered sensing characteristics are important requirements for hydrogel-based strain sensors. In this study, a novel double-layer hydrogel was fabricated with asymmetrical adhesion, strength, and electriferous properties. Wherein, the lignosulfonate sodium (LS)-borax mediated bottom hydrogel layer exhibits excellent softness (Young’s modulus: ∼14.2 kPa) and skin-adhesion (Adhesive strength: ∼18.7 kPa) while the ...
2 CitationsSource
Recently, owing to their excellent flexibility and adaptability, skin-like pressure and strain sensors integrated with the human body have the potential for great prospects in healthcare. This review mainly focuses on the representative advances of the flexible pressure and strain sensors for health monitoring in recent years. The review consists of five sections. Firstly, we give a brief introduction of flexible skin-like sensors and their primary demands, and we comprehensively outline the two...
Source
#1Xiaoling He (Tianjin Polytechnic University)H-Index: 8
#2Sun Xiaoqian (Tianjin Polytechnic University)
Last. Dongsheng Wei (NKU: Nankai University)H-Index: 1
view all 7 authors...
The poor mechanical properties of self-healing hydrogels limited their applications in the fields of biomedicine and industry. Here, a series of self-healing polymeric ionic liquid (PIL) hydrogels with high mechanical strength and electrical conductivity were prepared through hydrophobic association. Hydrophilic monomer vinyl ionic liquids (VILs) based on choline and amino acids, acrylamide (AAm) and hydrophobic monomers stearyl methacrylate (C18) were copolymerized in a micellar solution of sod...
Source
#1Shuangfei Xiang (Tongji University)H-Index: 1
#2Feng Zheng (Tongji University)H-Index: 8
Last. Qinghua Lu (Tongji University)H-Index: 39
view all 4 authors...
Flexible electronic materials have aroused significant interest due to the need for flexible electronics in a variety of applications. However, several obstacles such as low mechanical properties, interfacial adhesion problems, and nonreusability hinder their rapid development. Here, an ionogel was developed by a one-step photopolymerization of an ionic liquid (IL) with the C═C bond of 1-vinyl-3-butylimidazolium tetrafluoroborate in another ionic liquid solution of 1-butyl-3-methylimidazolium te...
Source
#1Hui Song (Donghua University)H-Index: 2
#2Yinglun Sun (CAS: Chinese Academy of Sciences)
Last. Tianxi Liu (Jiangnan University)H-Index: 87
view all 6 authors...
Abstract Polyelectrolyte complex hydrogel (PECH) is an emerging ion conductive hydrogel made from non-covalent interacted oppositely charged polyelectrolytes in water. However, the construction of PECH with high stretchability, excellent fatigue resistance and self-healability is heavily demanded while remaining a profound challenge. Herein, a hydrogen-bonded network densification strategy is presented for preparing a highly stretchable and deformation-tolerant PECH hydrogel (Fe/CS/PAA), which i...
Source
#1Shuxian Zhu (USTB: University of Science and Technology Beijing)H-Index: 8
#2Xiaoyu Wang (USTB: University of Science and Technology Beijing)H-Index: 22
Last. Lidong Li (USTB: University of Science and Technology Beijing)H-Index: 32
view all 5 authors...
Gold nanocluster (AuNC) decorated hydrogels have attracted considerable attention as versatile biomaterials. To date AuNCs and hydrogels have mainly been mixed as independent components. Here, we report the use of AuNCs as reactive monomers in the polymerization of hydrogels. We used a free radical polymerization to copolymerize AuNCs with acrylamide and N-acryloyl glycinamide to prepare stimuli-responsive smart hydrogels. Multiple C═C bonds were decorated on the surface of the AuNCs as active s...
Source