Characterization of microbial current production as a function of microbe-electrode-interaction
Characterization of microbial current production as a function of microbe-electrode-interaction
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DOI：
10.1016/j.biortech.2014.01.112
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发表时间：
2014-04-01
影响因子：
11.4
通讯作者：
Gescher, Johannes
中科院分区：
文献类型：
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作者：
Dolch, Kerstin;Danzer, Joana;Gescher, Johannes
微生物-电极-相互作用是微生物燃料电池技术的关键。然而，分析微生物生理和材料特性相互作用的标准测量程序还没有引入。在这项研究中，使用单氏希瓦氏杆菌和硫还原地杆菌的纯培养以及已定义和未定义的混合培养对不同表面性质的石墨阳极进行了评估。评估程序包括恒流期、电流扫描和种群密度评估。结果表明，比表面积与布居密度和阳极性能只有一定程度的相关性。此外，这项研究强调了一种特定于菌株的微生物-电极-相互作用，这受到另一种微生物的引入的影响。此外，还为将纯培养结果转化为不确定的混合物种实验的可能性提供了证据。这是首次系统地整合和比较电化学和生物数据的微生物-电极-相互作用的研究。(C)2014爱思唯尔有限公司。保留所有权利。
Microbe-electrode-interactions are keys for microbial fuel cell technology. Nevertheless, standard measurement routines to analyze the interplay of microbial physiology and material characteristics have not been introduced yet. In this study, graphite anodes with varying surface properties were evaluated using pure cultures of Shewanella oneidensis and Geobacter sulfurreducens, as well as defined and undefined mixed cultures. The evaluation routine consisted of a galvanostatic period, a current sweep and an evaluation of population density. The results show that surface area correlates only to a certain extent with population density and anode performance. Furthermore, the study highlights a strain-specific microbe-electrode-interaction, which is affected by the introduction of another microorganism. Moreover, evidence is provided for the possibility of translating results from pure culture to undefined mixed species experiments. This is the first study on microbe-electrode-interaction that systematically integrates and compares electrochemical and biological data. (C) 2014 Elsevier Ltd. All rights reserved.