视紫红质的视网膜发色团在皮秒内发生光异构化。
Retinal chromophore of rhodopsin photoisomerizes within picoseconds.
作者信息
Hayward G, Carlsen W, Siegman A, Stryer L
出版信息
Science. 1981 Feb 27;211(4485):942-4. doi: 10.1126/science.7466366.
PMID:7466366
Abstract
A new picosecond resonance Raman technique shows that resonance Raman lines characteristic of a distorted all-trans retinal appear within 30 picoseconds after photolysis of rhodopsin or isorhodopsin. This finding suggests that isomerization is nearly complete within picoseconds of the absorption of a photon.
摘要
一种新的皮秒共振拉曼技术表明，在视紫红质或异视紫红质光解后30皮秒内会出现扭曲的全反式视黄醛特征性的共振拉曼谱线。这一发现表明，在吸收光子的皮秒内异构化几乎完成。
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