| Title: | Detection of Volatile Organic Compounds by Self-assembled Monolayer Coated Sensor Array with Concentration-independent Fingerprints |
| Author(s): | Chang Y; Tang N; Qu H; Liu J; Zhang D; Zhang H; Pang W; Duan X; |
| Address: | "State Key Laboratory of Precision Measuring Technology &Instruments, College of Precision Instrument and Opto-electronics Engineering, Tianjin University, Tianjin 300072, China" |
| ISSN/ISBN: | 2045-2322 (Electronic) 2045-2322 (Linking) |
| Abstract: | "In this paper, we have modeled and analyzed affinities and kinetics of volatile organic compounds (VOCs) adsorption (and desorption) on various surface chemical groups using multiple self-assembled monolayers (SAMs) functionalized film bulk acoustic resonator (FBAR) array. The high-frequency and micro-scale resonator provides improved sensitivity in the detections of VOCs at trace levels. With the study of affinities and kinetics, three concentration-independent intrinsic parameters (monolayer adsorption capacity, adsorption energy constant and desorption rate) of gas-surface interactions are obtained to contribute to a multi-parameter fingerprint library of VOC analytes. Effects of functional group's properties on gas-surface interactions are also discussed. The proposed sensor array with concentration-independent fingerprint library shows potential as a portable electronic nose (e-nose) system for VOCs discrimination and gas-sensitive materials selections" |
| Notes: | "PubMed-not-MEDLINEChang, Ye Tang, Ning Qu, Hemi Liu, Jing Zhang, Daihua Zhang, Hao Pang, Wei Duan, Xuexin eng Research Support, Non-U.S. Gov't England 2016/04/06 Sci Rep. 2016 Apr 5; 6:23970. doi: 10.1038/srep23970" |
