Abstract
Platinum or gold electrodes derivatized with an N,N′-dialkyl-4, 4′-bipyridinium reagent can be used to reduce horse heart ferricytochrome c, whereas reduction does not occur at the "naked" electrodes. From 3 to 17.7 millimoles per liter, the reduction of ferricytochrome c is mass transport-limited at electrode potentials more negative than about -0.6 volt against a saturated calomel reference electrode. Data for the photoreduction of ferricytochrome c at derivatized p-type silicon photocathodes show directly that the rate of reduction is mass transport-limited. Use of derivatized electrodes may allow convenient manipulation and analysis of biological molecules that do not ordinarily respond at conventional electrodes.
| Original language | English |
|---|---|
| Pages (from-to) | 944-947 |
| Number of pages | 4 |
| Journal | Science |
| Volume | 211 |
| Issue number | 4485 |
| Publication status | Published - 1981 |
ASJC Scopus subject areas
- General
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Lewis, N. S., & Wrighton, M. S. (1981). Electrochemical reduction of horse heart ferricytochrome c at chemically derivatized electrodes. Science, 211(4485), 944-947.