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  • 02월 26일 17시 이후 : 초록수정 불가능, 일정확인 및 검색만 가능

제115회 대한화학회 학술발표회, 총회 및 기기전시회 안내 Quantum Mechanical Effects in Biology

등록일
2015년 2월 12일 16시 31분 35초
접수번호
1135
발표코드
BIO.O-2 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
발표시간
금 10시 : 25분
발표형식
구두발표
발표분야
생명화학 - Oral Presentation of Young Biochemists
저자 및
공동저자
이호재
광주과학기술원(GIST) 화학, Korea
Biological systems are complex and condensed. Such environments prohibit most of the quantum mechanical phenomena from surviving to play important roles but classical models work better in the biological systems. In this talk, however, I will present two spectroscopic studies to demonstrate some quantum mechanical effects that may explain ultrafast energy transfer in photosynthesis and migratory birds’ navigation. An ultrafast spectroscopic technique found that there is long-lasting electronic quantum coherence (~300 fs) between pigments inside photosynthetic reaction center. With an aid of theoretical simulation this is understood to be facilitated by proteins tightly surrounding the pigments to enhance energy transfer rates between pigments. A possibility to control some chemical reaction outcomes by a weak magnetic field will also be introduced. This kind of reactions proceeds through so called radical pair mechanism, and it is nominated as a possible mechanism in cryptochrome in their retina that allows birds to feel geomagnetic fields.

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