Voltammetric Detection of Antioxidative Properties of Flavonoids Using Electrically Heated DNA Modified Carbon Paste Electrode

Sensors

O. Korbut¹  M. Bučková²  J. Labuda² 

[1] Department of Chemistry, Rostock University, 18051 Rostock, Germany;Department of Analytical Chemistry, Slovak University of Technology, 81237 Bratislava, Slovak Republic

关键词: Flavonoids;    Antioxidants;    DNA biosensor;    Carbon paste electrode;    Heated electrode;   

DOI  :  10.3390/s30100001

来源: mdpi

【 摘 要 】

A simple electrochemical sensor consisting of electrically heated carbon paste electrode with the surface modified by dsDNA is used to characterize voltammetric behaviour and antioxidative activity of four selected flavonoids. Quercetin, rutin, catechin and epigallocatechin gallate accumulate within the DNA layer. A positive effect of the electrode temperature within the range of 20 to 38 °C on the detection of a deep DNA degradation by a copper(II)/H₂O₂/ascorbic acid cleavage mixture as well as an antioxidative effect of flavonoids was evaluated.

【 授权许可】

Unknown   
2003 by MDPI (http://www.mdpi.net).