Flexible antibacterial degradable bioelastomer nanocomposites for ultrasensitive human–machine interaction sensing enabled by machine learning  

作　　者：Zihong Fu Mingcheng Wang Chenlin Huang Zehui Li Yue Yuan Shikai Hu Liqun Zhang Pengbo Wan 

机构地区：[1]College of Materials Science and Engineering,State Key Laboratory of Organic-Inorganic Composites,Beijing University of Chemical Technology,Beijing,China [2]Institute of Emergent Elastomers,School of Materials Science and Engineering,South China University of Technology,Guangzhou,China

出　　处：《Aggregate》2024年第3期384-396,共13页聚集体（英文）

基　　金：National Natural Science Foundation of China,Grant/Award Numbers:52222303,51973008;Joint Project of BRC-BC(Biomedical Translational Engineering Research Center of BUCT-CJFH),Grant/Award Number:XK2022-03;Fundamental Research Funds for the Central Universities。

摘　　要：Flexible wearables have attracted extensive interests for personal human motion sensing,intelligent disease diagnosis,and multifunctional electronic skins.How-ever,the reported flexible sensors,mostly exhibited narrow detection range,low sensitivity,limited degradability to aggravate environmental pollution from vast electronic wastes,and poor antibacterial performance to hardly improve skin dis-comfort and skin inflammation from bacterial growth under long-term wearing.Herein,bioinspired from human skin featuring highly sensitive tactile sensation with spinous microstructures for amplifying sensing sensitivity between epidermis and dermis,a wearable antibacterial degradable electronics is prepared from degrad-able elastomeric substrate with MXene-coated spinous microstructures templated from lotus leaf assembled with the interdigitated electrode.The degradable elas-tomer is facilely obtained with tunable modulus to match the modulus of human skin with improved hydrophilicity for rapid degradation.The as-obtained sensor displays ultra-low detection limit(0.2 Pa),higher sensitivity(up to 540.2 kPa^(-1)),outstand-ing cycling stability(>23,000 cycles),a wide detection range,robust degradability,and excellent antibacterial capability.Facilitated by machine learning,the collected sensing signals from the integrated sensors on volunteer's fingers to the related American Sign Language are effectively recognized with an accuracy up to 99%,showing excellent potential in wireless human movement sensing and smart machine learning-enabled human-machine interaction.

关 键 词：ANTIBACTERIAL degradable bioelastomer nanocomposites MXene skin-inspiredflexible electronic sensor ultrasensitive intelligent wearable human-interactive sensing 

分 类 号：TP181[自动化与计算机技术—控制理论与控制工程] TB33[自动化与计算机技术—控制科学与工程]