کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10375025 | 880029 | 2005 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
The fabrication of a colloidal gold-carbon nanotubes composite film on a gold electrode and its application for the determination of cytochrome c
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
شیمی کلوئیدی و سطحی
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چکیده انگلیسی
Colloid Au (Aunano) with a diameter of about 20Â nm was prepared and used in combination with the multi-wall carbon nanotubes (MWNTs) to modify a gold electrode. Dihexadecylphosphate (DHP) dispersed in Aunano aqueous solution was used to solubilize MWNTs. Deposition of Aunano on MWNTs was realized as illustrated by TEM micrographs. The DHP formed a network that connected Aunano and MWNTs to the gold electrode surface. The Aunano-MWNTs-DHP composite film on the gold electrode surface was characterized by electrochemical impedance spectroscopy (EIS) and cyclic voltammmetry (CV). The composite film modified gold electrode was used to detect cytochrome c and a pair of well-defined redox waves was obtained. It was found that the composite film promoted the redox of horse heart cytochrome c and its effect was developed for the determination of cytochrome c.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Colloids and Surfaces B: Biointerfaces - Volume 41, Issue 4, 10 April 2005, Pages 299-304
Journal: Colloids and Surfaces B: Biointerfaces - Volume 41, Issue 4, 10 April 2005, Pages 299-304
نویسندگان
Yunhua Wu, Shengshui Hu,