Effect of solution pH and ionic strength on the stability of poly(acrylic acid)-encapsulated multiwalled carbon nanotubes aqueous dispersion and its application for NADH sensor

Aihua Liu, Takashi Watanabe, Itaru Honma, Jin Wang, Haoshen Zhou

研究成果: Article査読

57 被引用数 (Scopus)

抄録

The optimal conditions to prepare water-soluble, stable poly(acrylic acid)-wrapped multiwalled carbon nanotubes (PAA-MWNTs) complex is presented. PAA-MWNTs shows high stability within weak acid to weak basic pH condition. The complex also shows good endurance to moderate ionic strengths in the buffer solution. The PAA-MWNTs complex film-covered electrode demonstrates stable, excellent electrocatalytic activity to oxidize NADH, which makes it possible to prepare NADH sensor at a low potential of ∼0.13 V (versus Ag/AgCl) with the linear range of 4-100 μM by differential pulse voltammetry.

本文言語English
ページ(範囲)694-699
ページ数6
ジャーナルBiosensors and Bioelectronics
22
5
DOI
出版ステータスPublished - 2006 12 15
外部発表はい

ASJC Scopus subject areas

  • Biotechnology
  • Biophysics
  • Biomedical Engineering
  • Electrochemistry

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