Novel microbial photobioelectrochemical cell using an invasive ultramicroelectrode array and a microfluidic chamber |
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| Authors: | Joon-Geun Ha Young Seok Song Sunghwan Jung Soohwan Jang Yong-Kweon Kim Seoung Jai Bai Jae-Hyoung Park Seung-Ki Lee |
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| Institution: | 1.Department of Electrical Engineering and Computer Science,Seoul National University,Gwanak-gu,Republic of Korea;2.Department of Electronics & Electrical Engineering,Dankook University,Yongin-si,Republic of Korea;3.Department of Fiber System Engineering,Dankook University,Yongin-si,Republic of Korea;4.Department of Mechanical Engineering,Dankook University,Yongin-si,Republic of Korea;5.Department of Chemical Engineering,Dankook University,Yongin-si,Republic of Korea |
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| Abstract: | ObjectiveTo fabricate a novel microbial photobioelectrochemical cell using silicon microfabrication techniques.ResultsHigh-density photosynthetic cells were immobilized in a microfluidic chamber, and ultra-microelectrodes in a microtip array were inserted into the cytosolic space of the cells to directly harvest photosynthetic electrons. In this way, the microbial photobioelectrochemical cell operated without the aid of electron mediators. Both short circuit current and open circuit voltage of the microbial photobioelectrochemical cell responded to light stimuli, and recorded as high as 250 pA and 45 mV, respectively.ConclusionA microbial photobioelectrochemical cell was fabricated with potential use in next-generation photosynthesis-based solar cells and sensors. |
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