Nanoparticle Facilitated Extracellular Electron Transfer in Microbial Fuel Cells
文献类型：期刊论文
| 作者 | Jiang, Xiaocheng1; Hu, Jinsong1,3; Lieber, Alexander M.1; Jackan, Charles S.1; Biffinger, Justin C.4; Fitzgerald, Lisa A.4; Ringeisen, Bradley R.4; Lieber, Charles M.1,2 |
| 刊名 | NANO LETTERS
 |
| 出版日期 | 2014-11-01 |
| 卷号 | 14期号:11页码:6737-6742 |
| 关键词 | Bacteria Facilitated Electron Transport Electrochemically Active Iron Sulfide Shewanella |
| ISSN号 | 1530-6984 |
| DOI | 10.1021/nl503668q |
| 英文摘要 | Microbial fuel cells (MFCs) have been the focus of substantial research interest due to their potential for long-term, renewable electrical power generation via the metabolism of a broad spectrum of organic substrates, although the low power densities have limited their applications to date. Here, we demonstrate the potential to improve the power extraction by exploiting biogenic inorganic nanoparticles to facilitate extracellular electron transfer in MFCs. Simultaneous short-circuit current recording and optical imaging on a nanotechnology-enabled platform showed substantial current increase from Shewanella PV-4 after the formation of cell/iron sulfide nanoparticle aggregates. Detailed characterization of the structure and composition of the cell/nanoparticle interface revealed crystalline iron sulfide nanoparticles in intimate contact with and uniformly coating the cell membrane. In addition, studies designed to address the fundamental mechanisms of charge transport in this hybrid system showed that charge transport only occurred in the presence of live Shewanella, and moreover demonstrated that the enhanced current output can be attributed to improved electron transfer at cell/electrode interface and through the cellular-networks. Our approach of interconnecting and electrically contacting bacterial cells through biogenic nanoparticles represents a unique and promising direction in MFC research and has the potential to not only advance our fundamental knowledge about electron transfer processes in these biological systems but also overcome a key limitation in MFCs by constructing an electrically connected, three-dimensional cell network from the bottom-up. |
| 语种 | 英语 |
| WOS记录号 | WOS:000345723800112 |
| 出版者 | AMER CHEMICAL SOC |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/50861]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Lieber, Charles M. |
| 作者单位 | 1.Harvard Univ, Dept Chem & Chem Biol, Cambridge, MA 02138 USA 2.Harvard Univ, Div Engn & Appl Sci, Cambridge, MA 02138 USA 3.Chinese Acad Sci, Inst Chem, CAS Key Lab Mol Nanostruct & Nanotechnol, Beijing 100190, Peoples R China 4.US Naval Res Lab, Div Chem, Washington, DC 20375 USA |
| 推荐引用方式 GB/T 7714 | Jiang, Xiaocheng,Hu, Jinsong,Lieber, Alexander M.,et al. Nanoparticle Facilitated Extracellular Electron Transfer in Microbial Fuel Cells[J]. NANO LETTERS,2014,14(11):6737-6742. |
| APA | Jiang, Xiaocheng.,Hu, Jinsong.,Lieber, Alexander M..,Jackan, Charles S..,Biffinger, Justin C..,...&Lieber, Charles M..(2014).Nanoparticle Facilitated Extracellular Electron Transfer in Microbial Fuel Cells.NANO LETTERS,14(11),6737-6742. |
| MLA | Jiang, Xiaocheng,et al."Nanoparticle Facilitated Extracellular Electron Transfer in Microbial Fuel Cells".NANO LETTERS 14.11(2014):6737-6742. |
入库方式： OAI收割
来源：化学研究所
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