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Ultimate vibrational spectroscopy in the time and space domains: Toward the elucidation of the mechanism of material organization, from molecules to living cells

时间和空间领域的终极振动光谱：阐明从分子到活细胞的材料组织机制

基本信息

批准号：
15GS0204
负责人：
HAMAGUCHI Hiro-o
金额：
$ 320.4万
依托单位：
The University of Tokyo
依托单位国家：
日本
项目类别：
Grant-in-Aid for Creative Scientific Research
财政年份：
2003
资助国家：
日本
起止时间：
2003 至 2007
项目状态：
已结题

项目摘要

Development of new time-and space-resolved vibrational spectroscopiesThe following five new spectroscopic systems were constructed at the Department of Chemistry, the University of Tokyo.1) Femtosecond time-resolved ultraviolet/visible/near-infrared absorption and fluorescence spectrometer2) Picosecond time-resolved Raman spectrometer3) Nanosecond time-resolved infrared/near-infrared spectrometer4) Multiplex CARS (Coherent Anti-Stokes Raman Scattering) microspectrometer5) Hyper-Raman microspectrometerNew findings concerning complex molecular systems, from a molecule to a living cellThe new apparatus developed have been applied to many complex molecular systems to obtain the following results.1) Local structure formation in imidazolium based ionic liquids (The University of Tokyo)2) Solvation structures of p-nitroaniline by infrared electroabsorption spectroscopy (The University of Tokyo)3) Discovery of "molecular near-field effect" in resonance hyper-Raman scattering of β-carotene (The University of Tokyo)4) Ultrafast molecular dynamics in mixed molecular crystals by femtosecond fluorescence imaging (RIKEN)5) Ultrafast photogeneration and recombination dynamics of electrons in TiO_2 (The University of Tokyo)6) New mechanism of the hydrogen abstraction reaction by triplet aromatic carbonyls (The University of Tokyo)7) Structure and dynamics of dendrimers having chromophores to trigger structural changes (University of Tsukuba)8) Photoinduced electron transfer across a phospholipid membrane (The University of Tokyo)9) Discovery of the Raman spectroscopic signature of life in living yeast cells (The University of Tokyo)10) Non-linear theory of structure formation during the cell growth (The University of Tokyo)

新型时空分辨振动光谱学的发展以下五个新的光谱系统是在化学系建立的：东京大学飞秒时间分辨紫外/可见光/近红外吸收和荧光光谱仪皮秒时间分辨拉曼光谱仪纳秒时间分辨红外/近红外光谱仪多路CARS（相干反斯托克斯拉曼散射）微光谱仪超拉曼微光谱仪复杂分子体系的新发现从一个分子到一个活细胞，所研制的新仪器已应用于许多复杂的分子系统，得到以下结果。1)咪唑基离子液体的局部结构形成（东京大学）2)红外电吸收光谱对硝基苯胺的溶剂化结构（东京大学）3)β-胡萝卜素共振超拉曼散射中的“分子近场效应”的发现（东京大学）4)飞秒荧光成像混合分子晶体中的超快分子动力学（RIKEN）5) TiO_2中电子的超快光生和重组动力学（东京大学）6)三态芳羰基抽氢反应的新机制（东京大学）7)具有发色团的树状大分子触发结构变化的结构和动力学（筑波大学）8)通过磷脂膜的光诱导电子转移（东京大学）9)酵母细胞中生命的拉曼光谱特征的发现（东京大学）10)结构形成过程中的非线性理论细胞生长（东京大学）