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Journal of The Electrochemical Society

Inverse Opal of Polyaniline for Biosensors Prepared by Electrochemical and Self-Assembly Techniques

J. Electrochem. Soc., Volume 155, Issue 1, pp. J23-J25 (2008)

(Published 8 November 2007)

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Xiaoling Yang, Yi Jin, Yihua Zhu, Longhua Tang, and Chunzhong Li
Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China
Three-dimensionally ordered polyaniline (PANI) doped with poly(styrene sulfonate) inverse opal was fabricated by electrochemistry. The as-synthesized porous PANI composite film on the platinum electrode used colloidal crystals of silica beads as sacrificial template. The poly(diallyldimethylammonium chloride) (PDDA)/glucose oxidase (GOx) multilayer [(PDDA/GOx)n] was self-assembled in the synthesized ordered porous PANI for biosensing applications. The inverse opal of PANI architecture offered a microenvironment for increasing the quantity of GOx. The excellent electrocatalytic activity of (PDDA/GOx)3/PANI/Pt toward glucose and special three-dimensionally ordered structure of the enzyme electrode resulted in good characteristics, such as a high sensitivity (64.4  µA  mM−1  cm−2) and a short response time (within 5  s).

©2007 The Electrochemical Society
History: Submitted 30 July 2007; revised 27 September 2007; published 8 November 2007
Permalink: http://dx.doi.org/10.1149/1.2800759

KEYWORDS and PACS

Keywords
PACS
  • 87.80.-y
    Biological techniques and instrumentation; biomedical engineering
  • YEAR: 2007

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PUBLICATION INFORMATION

ISSN:
0013-4651 (print)  
Publisher:
AIP is a member of CrossRef ECS
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