한빛사논문
- 조회425
서울대학교
Wang Hee Lee 1,2, Chang-Kyu Yoon 3,4, Hyunseo Park 1,2, Ga-Hee Park 3, Jae Hwan Jeong 5, Gi Doo Cha 1,2, Byoung-Hoon Lee 1,2, Juri Lee 1, Chan Woo Lee 2, Megalamane S Bootharaju 1,2, Sung-Hyuk Sunwoo 1,2, Jaeyune Ryu 1,2, Changha Lee 2, Yong-Joon Cho 6, Tae-Wook Nam 3,7, Kyung Hyun Ahn 2, Taeghwan Hyeon 1,2, Yeong-Jae Seok 3, Dae-Hyeong Kim 1,2,8
1Center for Nanoparticle Research, Institute for Basic Science (IBS), Seoul, 08826, Republic of Korea.
2School of Chemical and Biological Engineering, and Institute of Chemical Processes, Seoul National University, Seoul, 08826, Republic of Korea.
3School of Biological Sciences and Institute of Microbiology, Seoul National University, Seoul, 08826, Republic of Korea.
4Research Institute of Basic Science, Seoul National University, Seoul, 08826, Republic of Korea.
5Department of Chemical Engineering, Stanford University, Stanford, CA, 94305, USA.
6Department of Molecular Biosciences, College of Biomedical Sciences, Kangwon National Universit, Chuncheon, Gangwon-do, 24341, Republic of Korea.
7MightyBugs, Inc., Busan, 46918, Republic of Korea.
8Department of Materials Science and Engineering, Seoul National University, Seoul, 08826, Republic of Korea.
W.H.L., C.-K.Y., H.S.P., G.-H.P. contributed equally to this work.
CORRESPONDING AUTHORS: Taeghwan Hyeon, Yeong-Jae Seok, Dae-Hyeong Kim
Abstract
Conversion of sunlight and organic carbon substrates to sustainable energy sources through microbial metabolism has great potential for the renewable energy industry. Despite recent progress in microbial photosynthesis, the development of microbial platforms that warrant efficient and scalable fuel production remains in its infancy. Efficient transfer and retrieval of gaseous reactants and products to and from microbes are particular hurdles. Here, inspired by water lily leaves floating on water, we present a microbial device designed to operate at the air-water interface and facilitate concomitant supply of gaseous reactants, smooth capture of gaseous products, and efficient sunlight delivery. The floatable device carrying Rhodopseudomonas parapalustris, of which nitrogen fixation activity is firstly determined through this study, exhibits a hydrogen production rate of 104 mmol/h∙m 2 , which is 53 times higher than that of a conventional device placed at a depth of 2 cm in the medium. Furthermore, a scaled-up device with an area of 144 cm 2 generates hydrogen at a high rate of 1.52 L/h∙m 2 . Efficient nitrogen fixation and hydrogen generation, low fabrication cost, and mechanical durability corroborate the potential of the floatable microbial device toward practical and sustainable solar energy conversion.
논문정보
- Research article
- 2023년 09월 (BRIC 등록일 2023-10-04)
- 국내(교신)+국외 연구진
- 바이오·의료융합 > 바이오센싱 및 나노바이오물질
댓글 작성 로그인
팝업 닫기관련 링크
연구자 키워드
연구자 ID
관련분야 연구자보기
소속기관 논문보기
관련분야 논문보기
