Ultrafast Dynamics and Spectroscopy of Photosystem I Subunits at Low Temperatures

低温下光系统 I 亚基的超快动力学和光谱学

• 批准号: 8702541
• 负责人: Edward Castner
• 金额: $ 3.26万
• 依托单位: University of Chicago
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1987
• 资助国家: 美国
• 起止时间: 1987-07-15 至 1989-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8702541&HistoricalAwards=false
• 关键词: Ultrafast; Dynamics; Spectroscopy; Photosystem; Subunits

Ultrafast Dynamics and Spectroscopy of Photosystem I Subunits at Low Temperatures This award recommendation is made under the U.S.-Industrialized Countries Program for the Exchange of Scientists and Engineers, 1987/1988 Competition. The program is designed to enable U.S. scientists and engineers to conduct long-term research at research institutions in the industrialized countries of Western Europe as well as Japan, Australia, and New Zealand. Exchange awards provide opportunities for the conduct of joint research and the utilization of unique or complementary facilities, expertise and experimental conditions in foreign countries. Awards are selected on the basis of scientific criteria relevant to his/her field of science, the prospective potential of the applicants for professional growth, as well as criteria relevant to the furthering of international cooperation in science and engineering. The program is particularly directed to scientists and engineers who are embarking on their research careers. This research project will use subpicosecond laser spectroscopy to study optical coherence dephasing in two different kinds of molecular systems. The first project will be to measure the rates of excitation transfer between chlorophyll A "antenna" molecules to the reaction center core pigment of the green plant P700 subunit of Photosystem I. The second project will be to measure the excited state dephasing or large organic molecules as a function of solvent and temperature at extremely low temperatures. The project is under the direction of Dr. Edward W. Castner, Jr., Department of Chemistry, University of Chicago, Chicago, IL 60637, U.S.A., and Professor D.A. Wiersma, Laboratory of Physical Chemistry, University of Groningen, Nijenborgh 16, 9747 AG, Groningen, The Netherlands. This award recommendation provides funds to cover, as appropriate, international travel, local travel abroad, stipend, dependents allowance, if applicable, language training, if required, and a flat administrative allowance of $250 or the U.S. home institution.

低温下光系统I亚基的超快动力学和光谱学该奖项是根据1987/1988年美国-工业化国家科学家和工程师交流计划竞赛提出的。该计划旨在使美国科学家和工程师能够在西欧工业化国家以及日本、澳大利亚和新西兰的研究机构进行长期研究。交流奖为开展联合研究和利用外国独特或互补的设施、专门知识和实验条件提供了机会。奖项的评选依据是与其所在科学领域有关的科学标准、申请者未来的专业发展潜力以及与进一步促进科学和工程领域的国际合作有关的标准。该计划特别针对正在开始他们的研究生涯的科学家和工程师。本研究项目将使用亚皮秒激光光谱学来研究两种不同类型的分子系统中的光学相干消相。第一个项目将测量叶绿素A“天线”分子到光系统I的绿色植物P700亚基反应中心核心色素之间的激发转移速率。第二个项目将测量在极低温度下激发态退相或大分子有机分子随溶剂和温度的变化。该项目由美国伊利诺伊州芝加哥芝加哥大学化学系小Edward W.Castner博士和荷兰格罗宁根大学物理化学实验室D.A.Wiersma教授指导。这项奖励建议提供资金，酌情支付国际旅行、当地出国旅行、津贴、家属津贴(如果适用)、语言培训(如果需要)和250美元的固定行政津贴或美国本土机构。