Electrochemical synthesis of Au/polyaniline-poly(4-styrenesulfonate) hybrid nanoarray for sensitive biosensor design

Meining Zhang, Akira Yamaguchi, Kotaro Morita, Norio Teramae

Research output: Contribution to journalArticlepeer-review

22 Citations (Scopus)

Abstract

Au/polyaniline (PANI)-poly(4-styrenesulfonate) (PSS) hybrid nanoarray is fabricated for biomolecular sensing in neutral aqueous solutions. Firstly, an array of one-dimensional Au nanorods (diameter = ca. 200 nm, length = ca. 3 μm) is formed by a template-electrodeposition method using a porous anodic alumina membrane, and then a thin PANI-PSS composite layer is electropolymerized on the surface of the Au nanorods. The resulting Au/PANI-PSS hybrid nanoarray exhibits a quasi-reversible redox electrochemical process at ca. +0.11 V and electrocatalytic oxidation of reduced β-nicotinamide adenine dinucleotide (NADH) is attained with a detection limit of 0.3 μM in a neutral solution.

Original languageEnglish
Pages (from-to)1090-1093
Number of pages4
JournalElectrochemistry Communications
Volume10
Issue number7
DOIs
Publication statusPublished - 2008 Jul

Keywords

  • Au nanorod
  • Hybrid nanoarray
  • NADH
  • Polyaniline

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Analytical Chemistry
  • Electrochemistry

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