Nanoparticle-Based Assays of Antioxidant Activity

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 vo...

Full description

Saved in:
Bibliographic Details
Published inAnalytical chemistry (Washington) Vol. 78; no. 6; pp. 2060 - 2063
Main Authors Scampicchio, Matteo, Wang, Joseph, Blasco, Antonio J, Sanchez Arribas, Alberto, Mannino, Saverio, Escarpa, Alberto
Format Journal Article
LanguageEnglish
Published United States American Chemical Society 15.03.2006
Subjects
Analytical chemistry
Antioxidants
Antioxidants - analysis
Biochemistry
Electrochemistry
Gold
Gold - chemistry
Hydroxybenzoates - chemistry
Nanoparticles
Nanoparticles - chemistry
Sensitivity and Specificity
Online AccessGet full text

Cover

More Information
Summary: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.
Bibliography:ark:/67375/TPS-WJS809GN-B
istex:564C6F79DF672B5FE3E973E32996D55D806063FE
ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ObjectType-Article-1
ObjectType-Feature-2
ISSN:0003-2700
1520-6882
DOI:10.1021/ac052007a