Title: Hydroxyterephthalate as a Fluorescent Probe for Hydroxyl Radicals: Application to Hair Melanin
Abstract: Photochemistry and PhotobiologyVolume 71, Issue 3 p. 307-313 Hydroxyterephthalate as a Fluorescent Probe for Hydroxyl Radicals: Application to Hair Melanin Xinhua Qu, Xinhua Qu Department of Chemistry, University of Rhode Island, Kingston, RI, USASearch for more papers by this authorLouis J. Kirschenbaum, Corresponding Author Louis J. Kirschenbaum Department of Chemistry, University of Rhode Island, Kingston, RI, USA *To whom correspondence should be addressed at: Department of Chemistry, University of Rhode Island. Kingston, RI 02881 USA. Fax: 401-874-5072; [email protected]Search for more papers by this authorEdward T. Borish, Edward T. Borish Department of Chemistry, University of Rhode Island, Kingston, RI, USA Bath and Body Works, 7 Limited Parkway East, Reynoldsburg OH 43068, USA.Search for more papers by this author Xinhua Qu, Xinhua Qu Department of Chemistry, University of Rhode Island, Kingston, RI, USASearch for more papers by this authorLouis J. Kirschenbaum, Corresponding Author Louis J. Kirschenbaum Department of Chemistry, University of Rhode Island, Kingston, RI, USA *To whom correspondence should be addressed at: Department of Chemistry, University of Rhode Island. Kingston, RI 02881 USA. Fax: 401-874-5072; [email protected]Search for more papers by this authorEdward T. Borish, Edward T. Borish Department of Chemistry, University of Rhode Island, Kingston, RI, USA Bath and Body Works, 7 Limited Parkway East, Reynoldsburg OH 43068, USA.Search for more papers by this author First published: 01 May 2007 https://doi.org/10.1562/0031-8655(2000)0710307HAAFPF2.0.CO2Citations: 10 Abbreviations: DMPO, ESR, electron spm resonance; HTA, 2-hydroxyterephthalate ion; SOD, superoxide dismutase; TA, terephthalic acid ion; 5,5-dimethyl-l-pyrroline-N-oxide AboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onEmailFacebookTwitterLinkedInRedditWechat ABSTRACT The known photoreactions of melanin include production of melanin free radicals and oxygen consumption. While qualitative descriptions of the intermediates and products of these processes have been published, no quantitative procedures have been reported that allow the convenient measurement of the products of oxygen reduction. We have used complementary fluorescence and electron spin resonance techniques to study free radical production from extracted hair melanin irradiated at wavelengths above 320 nm. As a comparison, sepia was also studied. Irradiation of aerated suspensions of melanin in the presence of terephthalic acid dianion (TA) ‡ gives rise to the characteristic fluorescence spectrum of the 2-hydroxyterephthalate ion (HTA, λeλ= 315 nm, λem= 425 nm). 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Publication Year: 2000
Publication Date: 2000-01-01
Language: en
Type: article
Indexed In: ['crossref', 'pubmed']
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Cited By Count: 60
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