학술논문
Nanoparticle-based assays of antioxidant activity
Technical Notes
Technical Notes
Document Type
Author abstract
Author
Source
Analytical Chemistry. March 15, 2006, Vol. 78 Issue 6, p2060, 4 p.
Subject
Language
English
ISSN
0003-2700
Abstract
The antioxidant power of several phenolic acids and related food samples is estimated from the generation and growth of gold nanoparticles. The intensity of the resulting particle plasmon absorption bands correlates well with the redox characteristics of these phenolic acids estimated from cyclic voltammetry experiments. The highest capacity of reducing gold(III) to gold nanoparticles corresponds to the highest antioxidant activity, consistent with the tendency of phenolic acids to donate electrons.