Department of Chemical & Nuclear Engineering, Center for Emerging Energy Technologies, The University of New Mexico, Albuquerque, New Mexico 87131, USA.
Enzyme Microb Technol. 2013 Jul 10;53(2):123-7. doi: 10.1016/j.enzmictec.2013.03.014. Epub 2013 Apr 23.
In this work we present a biological fuel cell fabricated by combining a Shewanella oneidensis microbial anode and a laccase-modified air-breathing cathode. This concept is devised as an extension to traditional biochemical methods by incorporating diverse biological catalysts with the aim of powering small devices. In preparing the biological fuel cell anode, novel hierarchical-structured architectures and biofilm configurations were investigated. A method for creating an artificial biofilm based on encapsulating microorganisms in a porous, thin film of silica was compared with S. oneidensis biofilms that were allowed to colonize naturally. Results indicate comparable current and power densities for artificial and natural biofilm formations, based on growth characteristics. As a result, this work describes methods for creating controllable and reproducible bio-anodes and demonstrates the versatility of hybrid biological fuel cells.
在这项工作中，我们展示了一种通过结合希瓦氏菌属微生物阳极和漆酶修饰的空气呼吸阴极制造的生物燃料电池。这个概念是通过将各种生物催化剂与为小型设备供电的目标相结合，从传统的生化方法扩展而来的。在制备生物燃料电池阳极时，研究了新颖的分层结构和生物膜结构。一种基于将微生物封装在多孔、薄的二氧化硅薄膜中的人工生物膜形成方法与允许自然定殖的 S. oneidensis 生物膜进行了比较。结果表明，基于生长特性，人工和自然生物膜形成具有可比的电流和功率密度。因此，这项工作描述了创建可控和可重复的生物阳极的方法，并展示了混合生物燃料电池的多功能性。
