ANYL 94 |
| Voltammetric measurements of ferritin adsorbed at indium-tin oxide (ITO) electrodes have implied that the protein can be electrochemically induced to release iron. A long optical path length thin-layer (LOPLTLE) spectroelectrochemical cell has been constructed to employ ITO electrodes. A single molecular layer of ferritin was adsorbed onto ITO, then placed into the LOPLTLE cell. Following alignment of the source radiation through the cell, a reducing potential was applied to the electrode to induce iron release from ferritin while the radiant power signal was monitored. The extent of iron release was calculated from the ratio of iron spectrophotometrically measured to that electrolyzed in the adsorbed layer. The measured value of 28 % implies that iron exists in different chemical environments within ferritin's mineral core. |
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General Papers
7:00 PM-9:00 PM, Sunday, 10 September 2006 Moscone Center -- Hall D, Poster
Division of Analytical Chemistry |