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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Zhu, Ben-zhan Qin, Hao Huang, Chun-hua Fan, Rui-mei Mao, Li Zhu, Jun-ge Kalyanaraman, Balaraman |
| Description | Author Affiliation: Zhu BZ ( State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, People's Republic of China. bzhu@rcees.ac.cn); |
| Abstract | Most chemiluminescence (CL) reactions usually generate only one-step CL, which is rarely dependent on the highly reactive and biologically/environmentally important hydroxyl radicals ((â ¢)OH). Here, we show that an unprecedented two-step CL can be produced by the carcinogenic tetrachloro-1,4-benzoquinone (also known as p-chloranil) and H(2)O(2), which was found to be well-correlated to and directly dependent on its two-step metal-independent production of (â ¢)OH. We proposed that (â ¢)OH-dependent formation of quinone-dioxetane and electronically excited carbonyl species might be responsible for this unusual two-step CL production by tetrachloro-1,4-benzoquinone/H(2)O(2). This is a unique report of a previously undefined two-step CL-producing system that is dependent on intrinsically formed (â ¢)OH. These findings may have potential applications in detecting and quantifying (â ¢)OH and the ubiquitous polyhalogenated aromatic carcinogens, which may have broad biological and environmental implications for future research on these types of important species. |
| ISSN | 00278424 |
| e-ISSN | 10916490 |
| Journal | Proceedings of the National Academy of Sciences of the United States of America |
| Issue Number | 40 |
| Volume Number | 109 |
| Language | English |
| Publisher | National Academy of Sciences |
| Publisher Date | 2012-10-01 |
| Publisher Place | United States |
| Access Restriction | Open |
| Subject Keyword | Carcinogens Chemistry Chloranil Hydrogen Peroxide Hydroxyl Radical Luminescence Models, Chemical Chromatography, High Pressure Liquid Chromatography, Ion Exchange Fluorescence Gas Chromatography-Mass Spectrometry Molecular Structure Research Support, N.I.H., Extramural Research Support, Non-U.S. Gov't Multidisciplinary |
| Content Type | Text |
| Resource Type | Article |
| Subject | Multidisciplinary |
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