P1.9.12 Fully printed wireless LC sensor for heavy metal detection

Event
14th International Meeting on Chemical Sensors - IMCS 2012
2012-05-20 - 2012-05-23
Nürnberg/Nuremberg, Germany
Chapter
P1.9 Technology and Application
Author(s)
A. Reddy, A. Eshkeiti, B. Narakathu - Department of Electrical and Computer Engineering, Western Michigan University (USA), M. Rebros, E. Rebrosova, M. Joyce, M. Atashbar - Center for Advancement of Printed Electronics, Western Michigan University (USA)
Pages
1191 - 1194
DOI
10.5162/IMCS2012/P1.9.12
ISBN
978-3-9813484-2-2
Price
free

Abstract

This paper reports on the successful development of a fully printed wireless LC sensor for the detection of toxic heavy metals. The sensor, consisting of an inductor, detection coil and interdigitated electrodes (IDE) in planar form, was fabricated using screen and gravure printing technologies on a flexible polyethylene-terephthalate (PET) substrate with silver based ink as metallization. The capability of the printed LC sensor for detecting very low concentrations of toxic heavy metals was demonstrated. The wireless response of the printed LC sensor revealed a very high sensitivity at picomolar levels of cadmium sulphide (CdS) and lead sulphide (PbS).

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