Logan Bruce E
Department of Civil and Environmental Engineering, Bruce E Logan is at the Hydrogen Energy Center, Penn State University, University Park, Pennsylvania 16802, USA.
Nat Rev Microbiol. 2009 May;7(5):375-81. doi: 10.1038/nrmicro2113. Epub 2009 Mar 30.
There has been an increase in recent years in the number of reports of microorganisms that can generate electrical current in microbial fuel cells. Although many new strains have been identified, few strains individually produce power densities as high as strains from mixed communities. Enriched anodic biofilms have generated power densities as high as 6.9 W per m(2) (projected anode area), and therefore are approaching theoretical limits. To understand bacterial versatility in mechanisms used for current generation, this Progress article explores the underlying reasons for exocellular electron transfer, including cellular respiration and possible cell-cell communication.
近年来，关于能够在微生物燃料电池中产生电流的微生物的报道数量有所增加。尽管已经鉴定出许多新菌株，但很少有单个菌株能产生与混合群落中的菌株一样高的功率密度。富集的阳极生物膜产生的功率密度高达每平方米6.9瓦（阳极面积投影），因此已接近理论极限。为了了解细菌在用于产生电流的机制方面的多样性，这篇进展文章探讨了细胞外电子转移的潜在原因，包括细胞呼吸和可能的细胞间通讯。
