Biofuel cells, which convert chemical energy into electrical energy at mild temperature and over moderate pH ranges, have been considered some of the most promising candidates for powering biomedical devices. However, most biofuel cells provide low power output and short-term operational stability due to their poor electron transfer. To address these issues, we use a unique amphiphilic assembly method to generate hybrid biofuel cells with high power output and good operational stability. This approach can induce favorable interfacial interactions between electrocatalysts and significantly improve the electron transfer kinetics of electrodes. In this study, glucose oxidase (in aqueous media) is repeatedly assembled with hydrophobic metal nanoparticles (in nonpolar media) on a conductive textile. The formed biofuel cell exhibits remarkably high power output (7.3 mW cm−2) and good operational durability. We believe that our assembly approach can provide a basis for preparing a variety of high-performance bioelectrochemical devices, including biofuel cells.

中文翻译：

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使用基于两亲组装的酶电极的高性能混合生物燃料电池

生物燃料电池在温和的温度和适度的 pH 值范围内将化学能转化为电能，被认为是为生物医学设备提供动力的最有前途的候选者之一。然而，大多数生物燃料电池由于电子转移不佳而提供低功率输出和短期运行稳定性。为了解决这些问题，我们使用独特的两亲组装方法来生成具有高功率输出和良好运行稳定性的混合生物燃料电池。这种方法可以诱导电催化剂之间有利的界面相互作用，并显着改善电极的电子转移动力学。在这项研究中，葡萄糖氧化酶（在水性介质中）与疏水性金属纳米粒子（在非极性介质中）在导电纺织品上反复组装。−2) 和良好的操作耐久性。我们相信我们的组装方法可以为制备包括生物燃料电池在内的各种高性能生物电化学设备提供基础。