Volume 208, Issue 6 pp. 1357-1363
Original Paper

Miniaturised eight-channel impedance spectroscopy unit as sensor platform for biosensor applications

Jeroen Broeders

Corresponding Author

Jeroen Broeders

Institute for Materials Research, Hasselt University, Wetenschapspark 1, 3590 Diepenbeek, Belgium

Xios University College, Agoralaan Gebouw H, 3590 Diepenbeek, Belgium

Phone: +32-011-26-88-35, Fax: +32-011-26-88-99Search for more papers by this author
Stijn Duchateau

Stijn Duchateau

Xios University College, Agoralaan Gebouw H, 3590 Diepenbeek, Belgium

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Bart Van Grinsven

Bart Van Grinsven

Institute for Materials Research, Hasselt University, Wetenschapspark 1, 3590 Diepenbeek, Belgium

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Wouter Vanaken

Wouter Vanaken

Xios University College, Agoralaan Gebouw H, 3590 Diepenbeek, Belgium

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Marloes Peeters

Marloes Peeters

Institute for Materials Research, Hasselt University, Wetenschapspark 1, 3590 Diepenbeek, Belgium

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Thomas Cleij

Thomas Cleij

Xios University College, Agoralaan Gebouw H, 3590 Diepenbeek, Belgium

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Ronald Thoelen

Ronald Thoelen

Xios University College, Agoralaan Gebouw H, 3590 Diepenbeek, Belgium

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Patrick Wagner

Patrick Wagner

Institute for Materials Research, Hasselt University, Wetenschapspark 1, 3590 Diepenbeek, Belgium

IMEC, Devision IMOMEC, Wetenschapspark 1, 3590 Diepenbeek, Belgium

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Ward De Ceuninck

Ward De Ceuninck

Institute for Materials Research, Hasselt University, Wetenschapspark 1, 3590 Diepenbeek, Belgium

IMEC, Devision IMOMEC, Wetenschapspark 1, 3590 Diepenbeek, Belgium

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First published: 05 May 2011
Citations: 22

Abstract

A miniaturised, low cost impedance analyser is developed to ease the use of impedance spectroscopy in biological setups. This could form the first step towards fully standalone, hand-held biosensor applications. The system is capable of performing quasi-simultaneous time resolved impedance measurements on eight different channels in a frequency range of 10 Hz–100 kHz. The unit is accurate in a broad impedance range and is able to perform stable measurements over intervals of several days. The system is characterised by passive components, a temperature controlled wet cell based impedance setup and a biomimetic molecularly imprinted polymer (MIP) based histamine sensor. The test results all indicate accurate and stable functioning of the unit, making it suitable for bioanalytical applications.

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