Naturally Crosslinked Biocompatible Carbonaceous Liquid Metal Aqueous Ink Printing Wearable Electronics for Multi-Sensing and Energy Harvesting  

作　　者：King Yan Chung Bingang Xu Di Tan Qingjun Yang Zihua Li Hong Fu 

机构地区：[1]Nanotechnology Center,School of Fashion and Textiles,The Hong Kong Polytechnic University,Hong Kong 999077,People’s Republic of China [2]Department of Mathematics and Information Technology,The Education University of Hong Kong,Hong Kong,People’s Republic of China

出　　处：《Nano-Micro Letters》2024年第8期148-168,共21页纳微快报（英文版）

基　　金：funded by The Hong Kong Polytechnic University(Project No.1-WZ1Y,1-YXAK,1-W21C).

摘　　要：Achieving flexible electronics with comfort and durability comparable to traditional textiles is one of the ultimate pursuits of smart wearables.Ink printing is desirable for e-textile development using a simple and inexpensive process.However,fabricating high-performance atop textiles with good dispersity,stability,biocompatibility,and wearability for high-resolution,large-scale manufacturing,and practical applications has remained challenging.Here,waterbased multi-walled carbon nanotubes(MWCNTs)-decorated liquid metal(LM)inks are proposed with carbonaceous gallium–indium micro-nanostructure.With the assistance of biopolymers,the sodium alginate-encapsulated LM droplets contain high carboxyl groups which non-covalently crosslink with silk sericin-mediated MWCNTs.E-textile can be prepared subsequently via printing technique and natural waterproof triboelectric coating,enabling good flexibility,hydrophilicity,breathability,wearability,biocompatibility,conductivity,stability,and excellent versatility,without any artificial chemicals.The obtained e-textile can be used in various applications with designable patterns and circuits.Multi-sensing applications of recognizing complex human motions,breathing,phonation,and pressure distribution are demonstrated with repeatable and reliable signals.Self-powered and energy-harvesting capabilities are also presented by driving electronic devices and lighting LEDs.As proof of concept,this work provides new opportunities in a scalable and sustainable way to develop novel wearable electronics and smart clothing for future commercial applications.

关 键 词：BIOCOMPATIBLE Conductive ink BIOPOLYMER E-textile Carbonaceous liquid metal 

分 类 号：TS106[轻工技术与工程—纺织工程]