Nanoparticle-based assays of antioxidant activity

被引：132

作者：

Scampicchio, M

Wang, J ^{[1
]}

Blasco, AJ

Arribas, AS

Mannino, S

Escarpa, A

机构：

[1] Arizona State Univ, Biodesign Inst, Tempe, AZ 85287 USA

[2] Univ Milan, I-20133 Milan, Italy

[3] Univ Alcala de Henares, Madrid 28871, Spain

[4] Univ Autonoma Madrid, E-28049 Madrid, Spain

来源：

ANALYTICAL CHEMISTRY | 2006年 / 78卷 / 06期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1021/ac052007a

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

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.

引用

页码：2060 / 2063

页数：4

共 14 条

[1]

Antolovich M, 2002, ANALYST, V127, P183, DOI 10.1039/b009171p

[2] Novel total antioxidant capacity index for dietary polyphenols and vitamins C and E, using their cupric ion reducing capability in the presence of neocuproine:: CUPRAC method [J].