This paper reports the simultaneous synthesis of gold nanoparticles (AuNPs) with a spherical and stable structure using microbial fuel cell (MFC) biofilms. The green, facile, chemical stabilizers and capping-agent free AuNPs synthesis allow the binder-free in situ decoration of AuNPs on MFC anode electrode with the help of special interactions of biofilm. The MFC with AuNPs decorated carbon foam anode electrode produced 62.5% higher (46.37 Wm -3 ) power density than that of the MFC equipped with plain carbon foam anode (control). The AuNPs facilitated the good adhesion of bacteria, amplified the conductivity, and reduced the internal resistance, resulting in improved overall MFC performance. In addition, the peroxide-mimicking activity was evaluated and the MFC-synthesized AuNPs exhibited significantly higher peroxidase mimicking activity than the chemically synthesized AuNPs, thereby, allowing the easy and rapid colorimetric detection of hydrogen peroxide with a detection limit of 20 uM.

中文翻译：

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微生物燃料电池辅助金纳米粒子的生物合成及其在能源生产和过氧化氢检测中的应用

本文报道了使用微生物燃料电池 (MFC) 生物膜同时合成具有球形和稳定结构的金纳米粒子 (AuNPs)。绿色、简便、化学稳定剂和无封端剂的 AuNPs 合成允许在生物膜的特殊相互作用的帮助下在 MFC 阳极电极上无粘合剂原位装饰 AuNPs。带有 AuNPs 装饰的碳泡沫阳极电极的 MFC 产生的功率密度比配备普通碳泡沫阳极（对照）的 MFC 高 62.5%（46.37 Wm -3 ）。AuNPs促进了细菌的良好粘附，增强了电导率，降低了内阻，从而提高了整体MFC性能。此外，