Share Email Print

Proceedings Paper

Quartz crystal microbalance coated with poly-L-proline self-assembly layer to detect organic gases
Author(s): Muhamad Mat Salleh; Akrajas Ali Umar; Muhammad B. Yahaya
Format Member Price Non-Member Price
PDF $17.00 $21.00

Paper Abstract

A gas sensor system using the assembled molecular layer of poly amino acid derivative, poly-L-proline has been developed. The thin layer was prepared using self assembly technique which was deposited onto a quartz crystal microbalance (QCM) substrate. The QCM coated self-assembly monolayer (SAM) was used to detect the presence of two vapor samples; saturated vapor of acetone and 2-propanol. The sensing sensitivity was based on the change in the fundamental frequency of the QCM upon exposure towards gas sample. It was found that the SAM-coated QCM sensor system was sensitive towards the vapor samples by reducing its fundamental frequency. It was also found that the SAM exhibited a good stability and reproducibility behaviors.

Paper Details

Date Published: 2 April 2004
PDF: 6 pages
Proc. SPIE 5276, Device and Process Technologies for MEMS, Microelectronics, and Photonics III, (2 April 2004); doi: 10.1117/12.522746
Show Author Affiliations
Muhamad Mat Salleh, Univ. Kebangsaan Malaysia (Malaysia)
Akrajas Ali Umar, Univ. Kebangsaan Malaysia (Malaysia)
Muhammad B. Yahaya, Univ. Kebangsaan Malaysia (Malaysia)

Published in SPIE Proceedings Vol. 5276:
Device and Process Technologies for MEMS, Microelectronics, and Photonics III
Jung-Chih Chiao; Alex J. Hariz; David N. Jamieson; Giacinta Parish; Vijay K. Varadan, Editor(s)

© SPIE. Terms of Use
Back to Top
Sign in to read the full article
Create a free SPIE account to get access to
premium articles and original research
Forgot your username?