Alginate-polyacrylamide double-network hydrogel sensors: Biomass-based piezoresistive platform with liquid metal and convex array for enhanced sensitivity

被引：1

作者：

Ding, Du ^{[1
]}

Ren, Fang ^{[1
]}

Yin, Fan ^{[1
]}

Yuan, Shengkui ^{[1
]}

Wang, Yilan ^{[1
]}

Fan, Baoli ^{[1
]}

Lan, Zhou ^{[1
]}

Guo, Zhengzheng ^{[1
]}

Sun, Zhenfeng ^{[1
]}

Jin, Yanling ^{[1
]}

Ren, Penggang ^{[1
,2
]}

机构：

[1] Xian Univ Technol, Fac Printing, Packaging Engn & Digital Media Technol, Xian 710048, Peoples R China

[2] Xian Univ Technol, Sch Mat Sci & Engn, Xian 710048, Peoples R China

来源：

INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES | 2025年 / 306卷

基金：

中国国家自然科学基金;

关键词：

Flexible hydrogel sensor; Convex structure; Glass template method; Sodium alginate; Polyacrylamide; STRUCTURAL-CHARACTERIZATION; PRESSURE; STRAIN; TRANSPARENT;

D O I：

10.1016/j.ijbiomac.2025.141775

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

The hydrogel sensors with outstanding tensile strength, high sensitivity, broad sensing range and excellent stability are highly desired for flexible electronics. Here, a double network piezoresistive flexible hydrogel sensor equipped with a convex structure was fabricated using the template method, which consists of CMCNTs-PAM/ SA-Ca2+ convex array and ultra-high-conductivity liquid metal droplets (LMs). Such a novel hybrid architecture enables the prepared piezoresistive sensor to have high sensitivity (GF up to 32.42), fast response time (209 ms), good cyclic stability (ultra 2000 cyclic tensile), and excellent strength. Due to its good comprehensive monitoring performance, the double network hydrogel sensor can be used for human activity monitoring, providing a tremendous potential in electronic wearable devices.

引用

页数：10

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