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化学与环境学院仿生智能界面科学与技术引智平台学术报告(一):东京大学桥本仁和教授(Prof. Kazuhito Hashimoto)学术报告

发布日期:2012-04-06     点击:

Extracellular electron transfer (EET), particularly that mediated by members of the Gram-negative bacterial genus Shewanella, can proceed directly to external solid-phase metal oxides (i.e., minerals), which serve as terminal electron acceptors for respiration. EET by these bacteria, which is thought to be mediated through the expression of abundant outer membrane c-type cytochromes, particularly OmcA and MtrC, has been extensively studied with respect to bioremediation, biogeochemical circulation of minerals, and bioelectricity, and therefore has attracted considerable research attentions in the last decade. It has been proposed that EET to solids can proceed either directly by the physical contact of bacterial cells with terminal receptors via outer membrane c-type cytochromes or indirectly through soluble mediators, such as self-secreted flavins. So far, various important researches have been performed by Hashimoto’s lab from both fundamental researches and practical applications, including the mechanism of EET from the viewpoint of interfacial electron transfer by various electrochemical approaches; its applications in energy conversion systems.