Redox of Flavonoids with Chlorauric Acid and Its Analytical Application

doi:10.3969/j.issn.0251-0790.2012.06.010

Abstract

Abstract: Four flavonoids including genistein, luteolin, daidzein and naringenin can reduce HAuCl₄ to form gold nanoparticles in different acidity. There are good linear correlations between the signal of plasmon resonance absorption of gold nanoparticles and the concentration of four flavonoids. Thus, we developed a method to detect these four flavonoids respectively. By analyzing the molecular structure and calculating the electron cloud density distribution of the atoms using Materials-studio 4.0, we found that suitable pH for the reaction of different flavonoids and HAuCl₄ was related to the number of phenolic hydroxyl group of flavonoid and electron cloud density distribution of alkaline oxygen atoms.

Key words: Genistein, Luteolin, Daidzein, Naringenin, Gold nanoparticles, Plasmon resonance absorption

CLC Number:

O657

TrendMD:

WANG Hui-Juan, LI Chun-Mei, LIU Yue, LI Yuan-Fang. Redox of Flavonoids with Chlorauric Acid and Its Analytical Application[J]. Chem. J. Chinese Universities, 2012, 33(06): 1172.

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