Human Machine Interface with Wearable Electronics Using Biodegradable Triboelectric Films for Calligraphy Practice and Correction  

作　　者：Shen Shen Jia Yi Zhongda Sun Zihao Guo Tianyiyi He Liyun Ma Huimin Li Jiajia Fu Chengkuo Lee Zhong Lin Wang 

机构地区：[1]Jiangsu Engineering Technology Research Center for Functional Textiles,Jiangnan University,No.1800 Lihu Avenue,Wuxi,P.R.China [2]Department of Electrical and Computer Engineering,National University of Singapore,4 Engineering Drive 3,Singapore 117576,Singapore [3]CAS Center for Excellence in Nanoscience,Beijing Key Laboratory of Micro-Nano Energy and Sensor,Beijing Institute of Nanoenergy and Nanosystems,Chinese Academy of Sciences,Beijing 100083,P.R.China [4]China National Textile and Apparel Council Key Laboratory of Natural Dyes,Soochow University,Suzhou 215123,People’s Republic of China [5]School of Material Science and Engineering,Georgia Institute of Technology,Atlanta,GA 30332-0245,USA

出　　处：《Nano-Micro Letters》2022年第12期630-644,共15页纳微快报（英文版）

基　　金：This study was financially supported by National Natural Science Foundation of China(NO.31470509);China Postdoctoral Science Foundation(No.2019T120390);China Scholarship Council(NO.202006790091);the Opening Project of China National Textile and Apparel Council Key Laboratory of Natural Dyes,Soochow University(No.SDHY2122)。

摘　　要：Letter handwriting,especially stroke correction,is of great importance for recording languages and expressing and exchanging ideas for individual behavior and the public.In this study,a biodegradable and conductive carboxymethyl chitosan-silk fibroin(CSF)film is prepared to design wearable triboelectric nanogenerator(denoted as CSF-TENG),which outputs of V_(oc)≈165 V,I_(sc)≈1.4μA,and Q_(sc)≈72 mW cm^(−2).Further,in vitro biodegradation of CSF film is performed through trypsin and lysozyme.The results show that trypsin and lysozyme have stable and favorable biodegradation properties,removing 63.1%of CSF film after degrading for 11 days.Further,the CSF-TENG-based human-machine interface(HMI)is designed to promptly track writing steps and access the accuracy of letters,resulting in a straightforward communication media of human and machine.The CSF-TENG-based HMI can automatically recognize and correct three representative letters(F,H,and K),which is benefited by HMI system for data processing and analysis.The CSF-TENG-based HMI can make decisions for the next stroke,highlighting the stroke in advance by replacing it with red,which can be a candidate for calligraphy practice and correction.Finally,various demonstrations are done in real-time to achieve virtual and real-world controls including writing,vehicle movements,and healthcare.

关 键 词：Letter handwriting Triboelectric nanogenerator BIODEGRADABLE Human-machine interface Calligraphy practice 

分 类 号：TB383.2[一般工业技术—材料科学与工程] TM31[电气工程—电机]