| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 10375025 | Colloids and Surfaces B: Biointerfaces | 2005 | 6 Pages |
Abstract
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.
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Colloid and Surface Chemistry
Authors
Yunhua Wu, Shengshui Hu,