A Molecular Imprinting TNT Sensitive Detection Sensor Based on Film Bulk Acoustic Resonator

Sensors & Transducers Journal

(ISSN 1726- 5479)

205.767

2008 e-Impact Factor

25 Top Downloaded Articles

Best Selling Articles 2012

Journal Subscription 2013

Editorial Calendar 2013

Submit an Article

Editorial Board

Current Issue

Sensors & Transducers Journal 2011

Sensors & Transducers Journal 2010

Sensors & Transducers Journal 2009

Sensors & Transducers Journal 2008

Sensors & Transducers Journal 2007

2000-2002 S&T e-Digest Contents

2003 S&T e-Digest Contents

2004 S&T e-Digest Contents

2005 S&T e-Digest Contents

2006 S&T e-Digest Contents

Best Articles 2011

Vol. 151, No. 4, April 2013, pp. 36-40

A Molecular Imprinting TNT Sensitive Detection Sensor Based on Film Bulk Acoustic Resonator

¹Qimeng LV, ¹Guangmin WU, ^1*Jianming CHEN, ¹He Qun Chu, ²MAI John D.

1 MEMS Laboratory, Department of Physics, Kunming University
of Science and Technology, Kunming 650500, China;

2 Department of Mechanical and Biomedical Engineering,
City University of Hong Kong, Hong Kong, China

E-mail: lqmeng2008@qq.com, jmchen@inems.com

Received: 13 March 2013 Accepted: 18 April 2013 Published: 30 April 2013

Abstract: Highly sensitive and selective sensors for detection of explosive devices are important tools for maintaining public safety and security, especially the ability to quickly detect the presence of trace amounts of 2.4.6-Trinitrotoluene (TNT) in the air. Molecularly imprinted polymers (MIP) have the characteristics of both a high sensitivity and a high selectivity. Hence, we designed and simulated a film bulk acoustic resonator (FBAR) which uses a MIP substrates as an adsorption layer for detection of trace amounts of TNT. Starting with the Mason model, a numerical analysis of the FBAR resonator is performed. The results show that the quality of the mass loudness per unit area of the sensor is up to 0.5 pg/Hz/cm2, which is much higher than the quality of a conventional QCM sensor. Other calculated performance specifications of the sensor are also presented.

Keywords: 2.4.6-Trinitrotoluene, Explosives detection, Mason model, Film bulk acoustic resonator, Molecular imprinting technique

Click <here> or title of paper to download the full pages article in pdf format

1 Qimeng LV, 1 Guangmin WU, 1* Jianming CHEN, 1 He Qun Chu, 2 MAI John D.

¹Qimeng LV, ¹Guangmin WU, ^1*Jianming CHEN, ¹He Qun Chu, ²MAI John D.