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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술대회자료
- 저자정보
- 발행연도
- 2014.11
- 수록면
- 2,616 - 2,619 (4page)
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Understanding physicochemical and electrical interactions between dissimilatory metal-reducing bacteria and nanostructured electrodes is integral to a better understanding of the extracellular electron transfer mechanism in the metal-reducing bacteria for the development of better microbial fuel cells (MFC) and more efficient microbial electrosynthesis of chemical fuels. However, it remains unclear if such nanostructures are useful for enhancing bacterial attachments and promoting extracellular electron transfer. Furthermore, electrical behavior of single bacteria with in situ optical measurement has not been reported. Here, we use a vertical silicon nanowire array as a platform to study how single bacterial cells interact with nanostructures physically and electrically. We show that our vertical silicon nanowire array leads to enhanced physical interactions of bacterial cells with solid surfaces. We also demonstrate that electron transfer from a single bacterium can be directly probed by utilizing the vertical nanowires as highly-sensitive three-dimensional nanoscale electrodes. Our novel approach based on interfacing nanowires with single bacterial cells offers a new set of tools for systematically investigating the bacteria-surface interactions and the extracellular electron transport in dissimilatory metal- reducing bacteria at the single-cell level.
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