ORGN 461 |
| The importance of the anions in both biological systems and for the industry raises a number of safety concerns and necessitates the development of highly sensitive and reliable anion sensors. To upgrade the reliability of the sensing process, we decided to use two independent output signals (change in color and current/redox potential) by integrating hydrogen bond donors such as pyrrole or amide and a redox-active anthra- or naphthoquinone moiety. The resulting sensors 1-3 undergo an intensive change in both color and redox properties in the presence of anions. The anion binding by sensors 1-3 was investigated by spectrophotometric and electroanalytical methods. The preliminary experiments confirm that the anion binding is accompanied by changes in color and anion-specific changes in the redox behavior. The dual output sensor approach is believed to be a viable avenue for generating anion sensors with enhanced accuracy and reliability of the overall sensing process.
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Bioorganic, Metal-Mediated Reactions, and Molecular Recognition
8:00 PM-10:00 PM, Tuesday, 30 August 2005 Washington DC Convention Center -- Hall A, Poster
Division of Organic Chemistry |
