DocumentCode :
2370094
Title :
Direct electrochemistry of horseradish peroxidase in layer-by-layer nanotubes synthesized on template
Author :
Wu, Fang-Hua ; Hu, Zhi-Chao ; Xu, Jing-Jing ; Xian, Yue-Zhong ; Jin, Li-Tong
Author_Institution :
Dept. of Chem., East China Normal Univ., Shanghai
fYear :
2008
fDate :
24-27 March 2008
Firstpage :
1140
Lastpage :
1144
Abstract :
Horseradish peroxidase (HRP) and phthalic diglycol diacrylate (PDDA) was successfully immobilized on anodic aluminum oxide (AAO) template modified glassy carbon (GC) electrode using electric field directed layer-by-layer assembly (EFDLA) synthesis. The materials were characterized by scanning electric microscopy (SEM), transmission electric microscopy (TEM), UV-vis spectroscopy (UV-vis) and electrochemical impedance spectroscopy (EIS). A pair of redox peaks resulted from the redox reaction of IMP were observed with the formal potential of 0.012 V (v.s. SCE) in 0.2 mol/L pH=7.0 phosphate buffer solution (PBS). The number of transference electron was 1.05 and the direct electron transfer (eT) constant (ks) was 0.59 s-1.
Keywords :
anodes; electrochemical electrodes; electrochemical impedance spectroscopy; electrochemistry; nanotubes; scanning electron microscopy; transmission electron microscopy; EIS; SEM; TEM; UV-vis; UV-vis spectroscopy; direct electrochemistry; electric field directed layer-by-layer assembly synthesis; electrochemical impedance spectroscopy; electron transfer; glassy carbon electrode; horseradish peroxidase; layer-by-layer nanotubes; phosphate buffer solution; phthalic diglycol diacrylate; redox reaction; scanning electric microscopy; transmission electric microscopy; Nanoelectronics; Nanotubes;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Nanoelectronics Conference, 2008. INEC 2008. 2nd IEEE International
Conference_Location :
Shanghai
Print_ISBN :
978-1-4244-1572-4
Electronic_ISBN :
978-1-4244-1573-1
Type :
conf
DOI :
10.1109/INEC.2008.4585683
Filename :
4585683
Link To Document :
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