P1.9.12 Fully printed wireless LC sensor for heavy metal detection
- 14th International Meeting on Chemical Sensors - IMCS 2012
2012-05-20 - 2012-05-23
- P1.9 Technology and Application
- 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)
- 1191 - 1194
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).