Highly Sensitive Zwitterionic Hydrogel Sensor for Motion and Pulse Detection with Water Retention, Adhesive, Antifreezing, and Self-Healing Properties

doi:10.1021/acsami.2c14157

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	Highly Sensitive Zwitterionic Hydrogel Sensor for Motion and Pulse Detection with Water Retention, Adhesive, Antifreezing, and Self-Healing Properties
	Wang, Yanqing 1; Chen, Picheng 1; Zhou, Xinjie 1; Liu, Yuetao 1; Wang, Ning 2; Gao, Chuanhui 1
刊名	ACS APPLIED MATERIALS & INTERFACES
	2022-10-04
页码	13
关键词	zwitterionic hydrogels antifreezing self-healing sensor pulse wave monitoring
ISSN号	1944-8244
DOI	10.1021/acsami.2c14157
通讯作者	Wang, Ning(wangning@qdio.ac.cn) ; Gao, Chuanhui(gaochuanhui@qust.edu.cn)
英文摘要	The design and synthesis of conductive hydrogels with antifreezing, long-term stable, highly sensitive, self-healing, and reusable is a critical procedure to enable applications in flexible electronics, medical monitoring, soft robotics, etc. Herein, a novel zwitterionic composite hydrogel possessing antifreezing, fast self-healing performance, water retention, and adhesion was synthesized via a simple one-pot method. LiCl, as an electrolyte and antifreeze, was promoted to dissociate under the electrostatic interaction with zwitterions, resulting in the composite hydrogels with high electrical conductivity (7.95 S/m) and excellent antifreeze ability (-45.3 degrees C). Meanwhile, the composite hydrogels could maintain 97% of the initial water content after exposed to air (25 degrees C, 55% RH) for 1 week due to the presence of salt ions. Moreover, the active groups of zwitterions could form conformal adhesion between the composite hydrogels and skin, which was particularly crucial for the stable signal output of the sensor. The dynamic borate ester bonds, active group of zwitterions, and the hydrogen bond between different components could achieve rapid self-healing (2 h, self-healing efficiency to 97%) without any external intervention. Notably, the developed PBAS-Li (poly(vinyl alcohol) Borax/acrylamide/zwitterionic-LiCl) hydrogel not only succeeded in sensitively detecting human motions but also could precisely captured handwritings signals and subtle pulse waves on the neck and wrist. The above findings demonstrated the great potential of PBAS-Li hydrogels in the field of flexible electronic devices.
资助项目	National Natural Science Foundation of China[51872150] ; QingChuang Science and Technology Plan Project of Colleges and Universities in Shandong Province[2020KJC005]
WOS研究方向	Science & Technology - Other Topics ; Materials Science
语种	英语
出版者	AMER CHEMICAL SOC
WOS记录号	WOS:000869693300001
内容类型	期刊论文
源URL	[http://ir.qdio.ac.cn/handle/337002/180611]
专题	海洋研究所_海洋腐蚀与防护研究发展中心
通讯作者	Wang, Ning; Gao, Chuanhui
作者单位	1.Qingdao Univ Sci & Technol, Coll Chem Engn, Qingdao 266042, Peoples R China 2.Chinese Acad Sci, Inst Oceanol, CAS Key Lab Marine Environm Corros & Biofouling, Qingdao 266071, Peoples R China
推荐引用方式 GB/T 7714	Wang, Yanqing,Chen, Picheng,Zhou, Xinjie,et al. Highly Sensitive Zwitterionic Hydrogel Sensor for Motion and Pulse Detection with Water Retention, Adhesive, Antifreezing, and Self-Healing Properties[J]. ACS APPLIED MATERIALS & INTERFACES,2022:13.
APA	Wang, Yanqing,Chen, Picheng,Zhou, Xinjie,Liu, Yuetao,Wang, Ning,&Gao, Chuanhui.(2022).Highly Sensitive Zwitterionic Hydrogel Sensor for Motion and Pulse Detection with Water Retention, Adhesive, Antifreezing, and Self-Healing Properties.ACS APPLIED MATERIALS & INTERFACES,13.
MLA	Wang, Yanqing,et al."Highly Sensitive Zwitterionic Hydrogel Sensor for Motion and Pulse Detection with Water Retention, Adhesive, Antifreezing, and Self-Healing Properties".ACS APPLIED MATERIALS & INTERFACES (2022):13.