Transient, Implantable, Ultrathin Biofuel Cells Enabled by Laser-Induced Graphene and Gold Nanoparticles Composite

作者：Huang, Xingcan; Li, Hu; Li, Jiyu; Huang, Libei; Yao, Kuanming; Yiu, Chun Ki; Liu, Yiming; Wong, Tsz Hung; Li, Dengfeng; Wu, Mengge; Huang, Ya; Gao, Zhan; Zhou, Jingkun; Gao, Yuyu; Li, Jian; Jiao, Yanli; Shi, Rui; Zhang, Binbin; Hu, Bofan; Guo, Qinglei; Song, Enming^*; Ye, Ruquan^*; Yu, Xinge^*

来源：Nano Letters, 2022, 22(8): 3447-3456.

DOI：10.1021/acs.nanolett.2c00864

• Transient electronics
• laser-induced graphene
• gold nanoparticles
• biodegradable
• enzymatic biofuel cell

Transient power sources with excellent biocompat-ibility and bioresorablility have attracted significant attention.Here, we report high-performance, transient glucose enzymaticbiofuel cells (TEBFCs) based on the laser-induced graphene(LIG)/gold nanoparticles (Au NPs) composite electrodes. SuchLIG electrodes can be easily fabricated from polyimide (PI) withan infrared CO2laser and exhibit a low impedance (16 Omega). Theresulted TEBFC yields a high open circuit potential (OCP) of 0.77V and a maximum power density of 483.1 mu W/cm2. The TEBFCnot only exhibits a quick response time that enables reaching themaximum OCP within 1 min but also owns a long lifetime over 28days in vitro. The excellent biocompatibility and transientperformance fromin vitroandin vivotests allow long-termimplantation of TEBFCs in rats for energy harvesting. The TEBFCs with advanced processing methods provide a promising powersolution for transient electronics.

• 单位
  复旦大学; 山东大学