Highly Stretchable and Flexible Electrospinning-Based Biofuel Cell for Implantable Electronic

作者全名："Guan, Shoujie; Wang, Jingxi; Yang, Yang; Zhu, Xun; Zhou, Jianping; Ye, Dingding; Chen, Rong; Dai, Hongwei; Liao, Qiang"

作者地址："[Guan, Shoujie; Yang, Yang; Zhu, Xun; Ye, Dingding; Chen, Rong; Liao, Qiang] Chongqing Univ, Key Lab Low grade Energy Utilizat Technol & Syst, Minist Educ, Chongqing 400030, Peoples R China; [Guan, Shoujie; Yang, Yang; Zhu, Xun; Ye, Dingding; Chen, Rong; Liao, Qiang] Chongqing Univ, Inst Engn Thermophys, Sch Energy & Powering Engn, Chongqing 400030, Peoples R China; [Wang, Jingxi; Zhou, Jianping; Dai, Hongwei] Chongqing Med Univ, Affiliated Hosp Stomatol, Dept Orthodont, Chongqing 401147, Peoples R China"

通信作者："Yang, Y; Liao, Q (通讯作者)，Chongqing Univ, Key Lab Low grade Energy Utilizat Technol & Syst, Minist Educ, Chongqing 400030, Peoples R China.; Yang, Y; Liao, Q (通讯作者)，Chongqing Univ, Inst Engn Thermophys, Sch Energy & Powering Engn, Chongqing 400030, Peoples R China.; Zhou, JP (通讯作者)，Chongqing Med Univ, Affiliated Hosp Stomatol, Dept Orthodont, Chongqing 401147, Peoples R China."

来源：ADVANCED FUNCTIONAL MATERIALS

ESI学科分类：MATERIALS SCIENCE

WOS号：WOS:000980431500001

JCR分区：Q1

影响因子：18.5

年份：2023

卷号：　

期号：　

开始页：　

结束页：　

文献类型：Article; Early Access

关键词：electrospinning; enzymatic biofuel cells; flexibility; implantable electronics; stretchability

摘要："With the emerging demand of implantable microelectronics, it essentially requires the fully integrated and reliable power supplies. The study reports a stretchable and flexible electrospinning-based glucose/O-2 biofuel cell with glucose oxidase bioanode, Pt/C cathode and thermoplastic polyurethane substrate, which is capable for adapting to the various stresses and strains caused by individual movement. The rigid benzene rings and elastic chain segments of thermoplastic polyurethane ensure its superior tensile property. Furthermore, the stable covalent connections between the activated carbon nanotubes (CNTs-COOH) and glucose oxidase inside 3D thermoplastic polyurethane network are established by amide reaction to ensure the rapid direct electron transfer of bioanode and stable power output of device in flexible environments. The biofuel cell exhibits an open circuit voltage of 0.575 V, and high-power density of 57 mu W cm(-2) in 5 mM glucose. Moreover, the power-generation properties of implantable biofuel cell keep steady, and its power density exhibits limited fluctuations on the dorsum of rat when bending, stretching, and twisting in 28 days. There is no obvious local inflammation or systemic abnormalities in rats. It satisfies the impressive biocompatible requirement, demonstrating the promising potential of electrospinning-based biofuel cell as a robust self-sustained power source for implantable electronics."

基金机构：National Natural Science Foundation of China [52176055]; Innovative Research Group Project of National Natural Science Foundation of China [52021004]; Chongqing Basic Science and Advanced Technology Research Program [CSTB2022NSCQ-MSX1676]; Fundamental Research Funds for the Central Universities [2021CDJQY-052]

基金资助正文："Acknowledgements S.G. and J.W. equally contributed to this work. The authors acknowledge the financial supports of National Natural Science Foundation of China (no. 52176055), Innovative Research Group Project of National Natural Science Foundation of China (no. 52021004), Chongqing Basic Science and Advanced Technology Research Program (no. CSTB2022NSCQ-MSX1676), Fundamental Research Funds for the Central Universities (no. 2021CDJQY-052)."