Effects of the type of polycation on the amperometric response of choline biosensors prepared by a layer-by-layer deposition technique

Haibin Shi, Zhao Song, Jiadong Huang, Yu Yang, Zixia Zhao, Jun Ichi Anzai, Tetsuo Osa, Qiang Chen

研究成果: Article査読

10 被引用数 (Scopus)

抄録

A layer-by-layer deposition technique was employed for fabricating choline biosensors using chloline oxidase (ChOx) and polycations such as poly(ethyleneimine) (PEI) and poly(diallyldimethylammonium chloride) (PDDA). A platinum electrode was coated with ChOx/PEI or ChOx/PDDA thin film to prepare amperometric choline sensors. The amperometric response of the sensors depended significantly on the type of the polycations. The ChOx/PDDA film suppressed the permeation of choline, resulting in a lower response than that of the ChOx/PEI film-based sensors. The results were rationalized based on the different chemical structures of the polycationic materials.

本文言語English
ページ(範囲)433-435
ページ数3
ジャーナルMaterials Science and Engineering C
25
4
DOI
出版ステータスPublished - 2005 6月

ASJC Scopus subject areas

  • 材料科学(全般)
  • 凝縮系物理学
  • 材料力学
  • 機械工学

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