Transient, Implantable, Ultrathin Biofuel Cells Enabled by Laser-Induced Graphene and Gold Nanoparticles Composite.
Xingcan HuangHu LiJiyu LiLibei HuangKuanming YaoChun Ki YiuYiming LiuTsz Hung WongDengfeng LiMengge WuYa HuangZhan GaoJingkun ZhouYuyu GaoJian LiYanli JiaoRui ShiBinbin ZhangBofan HuQinglei GuoEnming SongRuquan YeXinge YuPublished in: Nano letters (2022)
Transient power sources with excellent biocompatibility and bioresorablility have attracted significant attention. Here, we report high-performance, transient glucose enzymatic biofuel cells (TEBFCs) based on the laser-induced graphene (LIG)/gold nanoparticles (Au NPs) composite electrodes. Such LIG electrodes can be easily fabricated from polyimide (PI) with an infrared CO 2 laser and exhibit a low impedance (16 Ω). The resulted TEBFC yields a high open circuit potential (OCP) of 0.77 V and a maximum power density of 483.1 μW/cm 2 . The TEBFC not only exhibits a quick response time that enables reaching the maximum OCP within 1 min but also owns a long lifetime over 28 days in vitro. The excellent biocompatibility and transient performance from in vitro and in vivo tests allow long-term implantation of TEBFCs in rats for energy harvesting. The TEBFCs with advanced processing methods provide a promising power solution for transient electronics.
Keyphrases
- gold nanoparticles
- cerebral ischemia
- reduced graphene oxide
- induced apoptosis
- cell cycle arrest
- carbon nanotubes
- magnetic resonance
- drinking water
- oxidative stress
- hydrogen peroxide
- type diabetes
- blood brain barrier
- metabolic syndrome
- endoplasmic reticulum stress
- brain injury
- room temperature
- blood glucose
- solid state
- signaling pathway
- risk assessment
- contrast enhanced