An integrated QCM-based narcotics sensing microsystem
2008 (English)In: Lab on a Chip, ISSN 1473-0197, E-ISSN 1473-0189, Vol. 8, no 10, 1648-1657 p.Article in journal (Refereed) Published
We present the design, fabrication and successful testing of a 14 x 14 x 4 mm(3) 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.
Place, publisher, year, edition, pages
RSC Publishing, 2008. Vol. 8, no 10, 1648-1657 p.
electronic nose, quartz crystal microbalance, microsystem, narcotics detection, air-liquid interfacing, diaphragm, microfluidics, micro electro mechanical systems, molecular transport
IdentifiersURN: urn:nbn:se:kth:diva-14189DOI: 10.1039/b800487kISI: 000260466300007ScopusID: 2-s2.0-52749089053OAI: oai:DiVA.org:kth-14189DiVA: diva2:331620
QC 20100723. Tidigare titel: An integrated narcotics sensing microsystem2010-07-232010-07-232015-06-18Bibliographically approved