Subpicosecond Spectroscopy of Bacteriorhodopsin

descriptionPublicationkeyboard_double_arrow_right Article 16 Jun 1978 English Publisher:American Association for the Advancement of Science (AAAS)Journal:Science, volume 200, pages 1,279-1,281 (issn: 0036-8075, eissn: 1095-9203,

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Authors: E P, Ippen; C V, Shank; A, Lewis; M A, Marcus;

doi: 10.1126/science.663607

pmid: 663607

Subpicosecond Spectroscopy of Bacteriorhodopsin

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Abstract

Subpicosecond pulses have been used to study the ultrafast dynamics of the photochemistry of bacteriorhodopsin. An optically induced absorption that appears in about 1.0 picosecond at physiological temperatures has been resolved in time. The data can be interpreted in terms of the photochemical formation of bathobacteriorhodopsin and provide support for an excitation mechanism involving molecular rearrangement in the protein induced by electron redistribution in the chromophore.

Related Organizations

Bell Labs
United States
Cornell University
United States

Keywords

Halobacterium, Kinetics, Photochemistry, Bacteriorhodopsins, Lasers, Spectrum Analysis, Temperature, Biological Transport, Active, Protons, Carotenoids

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