Nanoparticle-coated chemiresistors with CMOS baseline tracking and cancellation Export

@inproceedings{citeulike:3839296, abstract = {Chemiresistors (CR) with thiolate-monolayer-protected gold nanoparticle (MPN) interfacial layers can provide sensitive detection of volatile organic compounds (VOCs). However, baseline resistances are high (\&\#x223C;M-ohm) relative to the typical responses (\&\#x223C;ohms), and baseline drifts can be large. These factors represent impediments to the implementation of CRs and CR arrays in microanalytical systems for multi-VOC monitoring. This paper presents a new baseline cancellation and tracking system for MPN-coated CRs. This system separates the sensor response and baseline in the analog domain. Concentrations down to hundreds of ppm were measured. The circuitry of the system demonstrated a sensor input range of over 45.8 dB. Most importantly, it accurately tracked and removed baseline drifts on the order of 2 mV/min and measured multiple sensors whose baselines differed by 27 M\&\#x2126;.}, author = {Rairigh, D. and Warnell, G. and Mason, A. J. and Xu, C. and Rowe, M. P. and Covington, E. L. and Kurdak, C. and Zellers, E. T.}, booktitle = {Sensors, 2008 IEEE}, citeulike-article-id = {3839296}, citeulike-linkout-0 = {http://dx.doi.org/10.1109/ICSENS.2008.4716416}, citeulike-linkout-1 = {http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=4716416}, doi = {10.1109/ICSENS.2008.4716416}, journal = {Sensors, 2008 IEEE}, keywords = {baseline, cancellation, chemiresistor}, pages = {196--199}, posted-at = {2008-12-31 16:07:18}, priority = {0}, title = {Nanoparticle-coated chemiresistors with CMOS baseline tracking and cancellation}, url = {http://dx.doi.org/10.1109/ICSENS.2008.4716416}, year = {2008} }

TY - CONF ID - citeulike:3839296 L3 - citeulike-article-id:3839296 N2 - Chemiresistors (CR) with thiolate-monolayer-protected gold nanoparticle (MPN) interfacial layers can provide sensitive detection of volatile organic compounds (VOCs). However, baseline resistances are high (∼M-ohm) relative to the typical responses (∼ohms), and baseline drifts can be large. These factors represent impediments to the implementation of CRs and CR arrays in microanalytical systems for multi-VOC monitoring. This paper presents a new baseline cancellation and tracking system for MPN-coated CRs. This system separates the sensor response and baseline in the analog domain. Concentrations down to hundreds of ppm were measured. The circuitry of the system demonstrated a sensor input range of over 45.8 dB. Most importantly, it accurately tracked and removed baseline drifts on the order of 2 mV/min and measured multiple sensors whose baselines differed by 27 MΩ. JF - Sensors, 2008 IEEE EP - 199 TI - Nanoparticle-coated chemiresistors with CMOS baseline tracking and cancellation T2 - Sensors, 2008 IEEE SP - 196 KW - baseline KW - cancellation KW - chemiresistor AU - Rairigh, D AU - Warnell, G AU - Mason, AJ AU - Xu, C AU - Rowe, MP AU - Covington, EL AU - Kurdak, C AU - Zellers, ET PY - 2008/// UR - http://dx.doi.org/10.1109/ICSENS.2008.4716416 ER -