Enhancement of microbial current production by riboflavin requires the reduced heme centers in outer membrane cytochromes in Shewanella oneidensis MR-1

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成果类型：

期刊论文

作者：

Huang, Wenyuan;Long, Xizi;Okamoto, Akihiro

通讯作者：

Okamoto, A

作者机构：

[Huang, Wenyuan; Okamoto, Akihiro] Natl Inst Mat Sci, Res Ctr Macromol & Biomat, 1-1 Namiki, Tsukuba, Ibaraki 3050044, Japan.

[Huang, Wenyuan; Long, Xizi; Okamoto, Akihiro] Natl Inst Mat Sci, Int Ctr Mat Nanoarchitecton, 1-1 Namiki, Tsukuba, Ibaraki 3050044, Japan.

[Huang, Wenyuan; Okamoto, Akihiro] Hokkaido Univ, Grad Sch Chem Sci & Engn, North 13 West 8, Kita Ku, Sapporo, Hokkaido 0608628, Japan.

[Okamoto, Akihiro] Univ Tsukuba, Coll Sci & Engn, Grad Sch Sci & Engn, 1-1-1 Tennodai, Tsukuba, Ibaraki 3058573, Japan.

[Okamoto, Akihiro] Tokyo Inst Technol, Living Syst Mat LiSM Res Grp, Int Res Frontiers Initiat IRFI, 4259 Nagatsuta, Midori Ku, Yokohama 2268503, Japan.

通讯机构：

[Okamoto, A ] N

Natl Inst Mat Sci, Res Ctr Macromol & Biomat, 1-1 Namiki, Tsukuba, Ibaraki 3050044, Japan.

语种：

英文

关键词：

Extracellular electron transfer;Microbial fuel cells;Circular dichroism;Differential pulse voltammetry;Semiquinone

期刊：

Electrochimica Acta

ISSN：

0013-4686

年：

2023

卷：

464

页码：

142860

DOI：

10.1016/j.electacta.2023.142860

基金类别：

Japan Society for Promotion of Science KAKENHI [22H02265, 19 gm6010002h0004]; Japan Agency for Medical Research and Development [21he0322002j0002, JPMJPR19H1]; JST, PRESTO, Japan [JPJA20P20333393]; JAEA Nuclear Energy S amp; T and Human Resource Development Project; [20H05590]

机构署名：

本校为其他机构

院系归属：

公共卫生学院

摘要：

The rate enhancement of extracellular electron transfer is critical for microbial fuel cells (MFCs). Flavins have been a promising additive to enhance current production even with a few µM through the formation of bound semiquinone cofactor in the outer membrane cytochromes (OMCs). However, the effect of flavins vastly decreases upon the dissociation from OMCs to be soluble electron shuttle. Therefore, identifying a critical factor to stabilize the bound flavin cofactor is essential. Herein, we demonstrated that the reduced heme centers in OMC...

摘要(中文)：

The rate enhancement of extracellular electron transfer is critical for microbial fuel cells (MFCs). Flavins have been a promising additive to enhance current production even with a few ?M through the formation of bound semiquinone cofactor in the outer membrane cytochromes (OMCs). However, the effect of flavins vastly decreases upon the dissociation from OMCs to be soluble electron shuttle. Therefore, identifying a critical factor to stabilize the bound flavin cofactor is essential. Herein, we demonstrated that the reduced heme centers in OMCs...

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Enhancement of microbial current production by riboflavin requires the reduced heme centers in outer membrane cytochromes in Shewanella oneidensis MR-1

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