Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
9876381 | Radiation Physics and Chemistry | 2005 | 5 Pages |
Abstract
The presence of an acetyl tryptophan ester gives rise to enhanced yields of carotenoid radical cations in chloroform following 355Â nm laser excitation of the carotenoid, even though the tryptophan does not absorb at this wavelength. The increase is attributed to positive charge transfer from semi-oxidized tryptophan itself generated by light absorbed by the carotenoid. The mechanism of these radical processes has been elucidated by pulse radiolysis studies.
Keywords
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Radiation
Authors
Ali El-Agamey, Marc Burke, Ruth Edge, Edward J. Land, David J. McGarvey, T. George Truscott,