Issue 10, 2008

An integrated QCM-based narcotics sensing microsystem

Abstract

We present the design, fabrication and successful testing of a 14×14×4 mm3 integrated electronic narcotics sensing system which consists of only four parts. The microsystem absorbs airborne narcotics molecules and performs a liquid assay using an integrated quartz crystal microbalance (QCM). A vertically conductive double-sided adhesive foil (VCAF) was used and studied as a novel material for LOC and MEMS applications and provides easy assembly, electrical contacting and liquid containment. The system was tested for measuring cocaine and ecstasy, with successful detection of amounts as small as 100 ng and 200 ng, respectively. These levels are of interest in security activities in customs, prisons and by the police.

Graphical abstract: An integrated QCM-based narcotics sensing microsystem

Supplementary files

Article information

Article type
Paper
Submitted
10 Jan 2008
Accepted
03 Jun 2008
First published
13 Aug 2008

Lab Chip, 2008,8, 1648-1657

An integrated QCM-based narcotics sensing microsystem

T. Frisk, N. Sandström, L. Eng, W. van der Wijngaart, P. Månsson and G. Stemme, Lab Chip, 2008, 8, 1648 DOI: 10.1039/B800487K

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