Amperometric immunosensor for the detection of anti-West Nile virus IgG using a photoactive copolymer

Rodica E. Ionescu, Serge Cosnier, Gregoire Herzog, Karine Gorgy, Boaz Leshem, Sebastien Herrmann, Robert S. Marks

Research output: Contribution to journalArticlepeer-review

17 Scopus citations

Abstract

A polymeric film consisting of two distinct monomers such as pyrrole-benzophenone and tris(bipyridine pyrrole) ruthenium (II) units was electrogenerated and used for the photochemical grafting of T7 bacteriophages displaying a specific West Nile virus (WNV) epitope. The resulting electrodes were applied to the amperometric detection of WNV antibody at 0 V in aqueous electrolyte via secondary peroxidase-labeled antibody, hydrogen peroxide and hydroquinone as the enzyme substrate. A calibration curve based on different WNV-antibody dilutions ranging from 10 to 106 was created with a relatively short response time of 30 s after substrate injection.

Original languageEnglish
Pages (from-to)403-408
Number of pages6
JournalEnzyme and Microbial Technology
Volume40
Issue number3
DOIs
StatePublished - 5 Feb 2007

Keywords

  • Bacteriophage
  • Benzophenone
  • Immunosensor
  • Polypyrrole
  • West Nile virus antibodies

ASJC Scopus subject areas

  • Biotechnology
  • Bioengineering
  • Biochemistry
  • Applied Microbiology and Biotechnology

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