한빛사논문
- 조회552
Egor Kokin1†, Hyun Ji An2, 3†, Donghoon Koo1†, Seungyeon Han2, Keumrai Whang4, Taewook Kang4, Inhee Choi2, 5*, Luke P. Lee1, 3, 6, 7*
1Institute of Quantum Biophysics, Department of Biophysics, Sungkyunkwan University, Suwon-si, 16419, Korea.
2Department of Life Science, University of Seoul, Seoul, 02504, Korea.
3Harvard Institute of Medicine, Harvard Medical School, Harvard University, Brigham and Women’s Hospital, Boston, MA, 02115, USA.
4Department of Chemical and Biomolecular Engineering, Sogang University, Seoul, 04107, Korea.
5Department of Chemistry, University of Seoul, Seoul, 02504, Korea.
6Department of Bioengineering, Universityof California at Berkeley, Berkeley, CA, 94720, USA.
7Department of Electrical Engineering and Computer Science, University of California at Berkeley, Berkeley, CA, 94720, USA.
†These authors contributed equally to this work.
*Corresponding Authors : Inhee Choi , Luke P. Lee
Abstract
Plasmonic nanocavities have been used as a novel platform for studying strong light-matter coupling, opening access to quantum chemistry, material science, and enhanced sensing. However, the biomolecular study of cavity quantum electrodynamics (QED) is lacking. Here, we report the quantum electrodynamic behavior of chlorophyll-a in a plasmonic nanocavity. We construct an extreme plasmonic nanocavity using Au nanocages with various linker molecules and Au mirrors to obtain a strong coupling regime. Plasmon resonance energy transfer (PRET)-based hyperspectral imaging is applied to study the electrodynamic behaviors of chlorophyll-a in the nanocavity. Furthermore, we observe the energy level splitting of chlorophyll-a, similar to the cavity QED effects due to the light-matter interactions in the cavity. Our study will provide insight for further studies in quantum biological electron or energy transfer, electrodynamics, the electron transport chain of mitochondria, and energy harvesting, sensing, and conversion in both biological and biophysical systems.
논문정보
- Research article
- 2022년 12월 (BRIC 등록일 2022-12-14)
- 국내(교신)+국외 연구진
- 바이오·의료융합 > 바이오센싱 및 나노바이오물질
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