Electrochemical Biosensors

December 4, 2014 14:16 PSP Book - 9in x 6in 10-Serge-Cosnier-c10

Chapter 10

Impedance Immunosensors

Frank Davis and S

´

eamus P. J. Higson

Cranfield Health, Cranfield University, Bedford, MK43 0AL, UK

s.p.j.higson@cranfield.ac.uk

This article is intended to firstly give a brief description of

biosensing and immunosensing, followed by an overview of the

technique of AC impedance, and then a detailed discussion of how

AC impedance has been applied in the transduction step in the

development of electrochemical immunosensors. Details of recent

advances such as the incorporation of nanotechnology into these

devices are also described. There will then follow a brief section on

immunosensing electrode arrays and then a conclusion discussing

future trends.

10.1 Introduction ...