Highly sensitive, wearable piezoresistive methylcellulose/chitosan@MXene aerogel sensor array for real-time monitoring of physiological signals of pilots

IF 6.8 2区材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

Science China Materials Pub Date : 2025-01-02 DOI:10.1007/s40843-024-3188-4

Yilin Zhao (, ), Bin Li (, ), Mian Zhong (, ), Hongyun Fan (, ), Zhongming Li (, ), Shuangqi Lyu (, ), Xiaoqing Xing (, ), Wenfeng Qin (, )

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引用次数: 0

Abstract

Sensors with enhanced biocompatibility, high sensitivity, and stable output have gained prominence with the rapid advancement of piezoresistive sensor technologies. However, conventional piezoresistive sensors struggle to balance sensitivity and output stability. Here, we fabricated synergistic methylcellulose/chitosan MXene-based (MC/CS@MXene) aerogels through physical blending and freeze-drying, emulating the hollow bamboo structure. The aerogels form synergistic interconnection via electrostatic adsorption and hydrogen bonding, endowing the aerogel-assembled resistive sensor with high sensitivity (2.90 kPa⁻¹), exceptional mechanical stability (8000 compression cycles at 10 kPa), and rapid response and recovery times (119 and 91 ms, respectively). A piezoresistive sensor array based on MC/CS/@MXene shows considerable potential for human–computer interactions and wearable technologies. Furthermore, the sensor array can monitor real-time physiological signals of civil aviation pilots.

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来源期刊

Science China Materials Materials Science-General Materials Science

CiteScore

11.40

自引率

7.40%

发文量

949

期刊介绍： Science China Materials (SCM) is a globally peer-reviewed journal that covers all facets of materials science. It is supervised by the Chinese Academy of Sciences and co-sponsored by the Chinese Academy of Sciences and the National Natural Science Foundation of China. The journal is jointly published monthly in both printed and electronic forms by Science China Press and Springer. The aim of SCM is to encourage communication of high-quality, innovative research results at the cutting-edge interface of materials science with chemistry, physics, biology, and engineering. It focuses on breakthroughs from around the world and aims to become a world-leading academic journal for materials science.