| 학회 | 한국화학공학회 |
| 학술대회 | 2021년 가을 (10/27 ~ 10/29, 광주 김대중컨벤션센터) |
| 권호 | 27권 2호, p.2009 |
| 발표분야 | 재료 |
| 제목 | Electron Transfer from Photoexcited Quantum Dots for Superbacteria Killing and Ammonia Production |
| 초록 | The use of nanoparticles (NPs) in biological applications has taken dynamically different phases. Efficient and relatively bleaching-free photoluminescence from semiconductor NPs was considered to make the materials suited for bio-imaging. While marginal progress persists, the fundamental question of electron transfer from NPs to biospecies poses both a challenge and an opportunity. The fertile opportunity space opens as we eye the biomedical applications, e.g., superbacterial killing for infected skin. In this talk, I will briefly discuss our strategy for the work on in vitro and in vivo studies of selective bacterial killing using NPs as photoelectron donor. I will also share our progress on the nitrogen fixation in microorganisms to produce ammonia by incorporating quantum dots (QDs) into bacterial cells. The QDs generate and transfer photo-generated electrons to Component I, the catalytic site of nitrogenase, in Azotobacter vinelandii at an orders-of-magnitude higher rate. Light-driven control of QDs with large absorption cross-section will address the limitation of relatively low ammonia production rate in nitrogen-fixing bacteria. |
| 저자 | 이도창1, 이일송1, 고성준1, 김귀민1, 최유진2, 이상엽1 |
| 소속 | 1KAIST, 2중앙대 |
| 키워드 | 화공소재 |
| 원문파일 | 초록 보기 |
