Chemistry Department Colloquium

"Tripping the Light Fantastic: Ultrafast Studies of Chromoproteins"

Presented by Professor Peter Tonge, Stony Brook University, Dept. of Chemistry

Wednesday, January 30, 2008, 11:00 am — Hamilton Seminar Room, Bldg. 555

A detailed microscopic understanding of how excited state dynamics both control and are controlled by the molecular environment is critical for the design of light-driven nanoscale molecular devices. We are using methods such as picosecond time resolved infrared spectroscopy (TRIR) to analyze the ground and excited state structure of the chromophore in two chromoproteins: the fluorescent protein, GFP, and the photoreceptor AppA. In each case we are interested in understanding how the protein matrix controls and modulates the response of the chromophore to light absorption.

Hosted by: Gregory Hall

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