NOTICE   •  Prof. HIYAMA, the Editor-in-Chief of Chemistry Letters stated our enthusiasm     and targets for achievements, in his New Year foreword.   • Chemistry Letters will expand the page limit to 3 pages in full color     and give additional recognition to superb papers as Editor’s Choice.  Attn!!   • list of Highlight Review   • list of Open Access Articles  Free!!   • CSJ Style for References and Notes  (2005.11.5) Vol. 39, No. 3 March, 2010
	» email contents alert » top accessed articles » article request » access registration » open access articles »  » list of issues »	» submit a manuscript » submission guidelines » open access option » editorial board » author information		Web Release Date: January 30, 2010 148 Carotenoid Radicals: Cryptochemistry of Natural Colorants Lowell D. Kispert and Nikolay E. Polyakov   [ Full Text PDF(J-STAGE)]   This review examines the properties and uses of carotenoid radicals. Their mechanisms of action on the molecular level play a crucial role in electron transfer and light regulation processes in photosynthesis, in the design of improved artificial solar cells, and in the scavenging of toxic free radicals. There is a remarkable increase in the quantum yield and the lifetime of the charge-separated states of the carotenoid radical cations in the supramolecular “hosts” β-glycyrrhizic acid (GA) and arabinogalactan (AG).
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