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NADH Oxidase Activity of Gold Nanoparticles in Aqueous Solution

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Abstract

Nanoparticles of Au(0) stabilized by Triton X-100 in water catalyze NADH oxidation. Oxygen and potassium ferricyanide can serve as electron acceptors from NADH. The NADH oxidase activity of Au(0) (normalized to gold concentration) is 0.08 turnover/min in air and 0.32 turnover/min in argon in the presence of K3FeCN6 (2 × 10−4 mol/l). The catalytic activity decreases with increasing gold concentration in the solution used for particle preparation and, accordingly, with increasing size of gold particles.

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Authors and Affiliations

  1. Institute of Problems of Chemical Physics, Russian Academy of Sciences, Chernogolovka, Moscow oblast, 142432, Russia

    V. S. Kulikova

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  1. V. S. Kulikova
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Translated from Kinetika i Kataliz, Vol. 46, No. 3, 2005, pp. 399–401.

Original Russian Text Copyright © 2005 by Kulikova.

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Kulikova, V.S. NADH Oxidase Activity of Gold Nanoparticles in Aqueous Solution. Kinet Catal 46, 373–375 (2005). https://doi.org/10.1007/s10975-005-0087-7

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  • DOI: https://doi.org/10.1007/s10975-005-0087-7

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