High energetic body source and strong antioxidant quercetin, morin and rutin: Their covalent grafting onto the glassy carbon electrode surfaces and investigation of surface properties
Küçük Resim Yok
Tarih
2012
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
SILA SCIENCE
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
Herein, electrochemical oxidation and grafting of quercetin, morin and rutin as important biological molecules has been studied with the cyclic voltammetry technique by using a glassy carbon electrode. Electrochemical studies have beep performed potentiostatically within a one-compartment three-electrode cell at room temperature. Glassy carbon electrode was used as a working electrode and Pt was used as a wire counter electrode. Ag/Ag+ (10 mM AgNO3), non-aqueous reference electrode calibrated to the E-1/2 of ferrocene redox probe and Ag/AgCl/KCl (sat.), an aqueous reference electrode calibrated to the E-1/2 of Fe(CN)(6)(3-) redox probe respectively. The modification and surface characterizations were carried out in both aqueous and non-aqueous media. 0.1 M tetrabutylammonium tetrafluoroborate in acetonitrile was used in non-aqueous experiments, Britton-Robinson buffer solution (pH=2) and 0.1 M KCl solution were used in aqueous experiments. Before each experiment the solution was de-aerated by the bubbling of Argon to remove the oxygen effects from the experiment results. Surface modification experiments were performed in the +0.3 V and +2.8 V potential ranges with a scan rate of 0.1 V s(-1) and 10 cycles for all molecules. The presence of quercetin, morin and rutin at the glassy carbon electrode surface was characterized by cyclic voltammetry, electrochemical impedance spectroscopy and atomic force microscopy.
Açıklama
Anahtar Kelimeler
Flavonoid, Surface modification, Surface characterization, Electrochemical Impedance Spectroscopy, Atomic Force Microscopy, Electrochemical enrgy
Kaynak
ENERGY EDUCATION SCIENCE AND TECHNOLOGY PART A-ENERGY SCIENCE AND RESEARCH
WoS Q Değeri
N/A
Scopus Q Değeri
N/A
Cilt
28
Sayı
2
