Machine Olfaction
The invention of the CCD chip has revolutionized the interface between technology and its environment. By pixilating optical images of its surroundings, devices can use sophisticated imaging processing and pattern recognition algorithms to perform increasingly sophisticated tasks associated with visual perception. The creation of a chemically diverse sensor array chip that mimics the olfactory system could provide the next revolution in sensory input for technology. In collaboration with groups in Electrical & Computer Engineering, we are working on CMOS circuitry design and new methods for creating large numbers of chemically diverse polymer sensing materials on the chips to significantly expand the ways in which technology interacts and functions.
Machine Olfaction
“Artificial Olfactory Signal Modulation for Detection in Changing Environments” ACS Sensors (2023) DOI: 10.1021/acssensors.2c02852
“Investigation of Conducting Composite Sensor Array Temporal Responses for Machine Olfaction using Artificial Intelligence” Sensors & Actuators: B. (2016) DOI: 10.1016/j.snb.2016.03.059
Integrated Circuit Devices
“A Dual Gate MOS-based Olfactory System Functionalized using Conducting Polymers” 2019 IEEE Sensors (2019) DOI: 10.1109/SENSORS43011.2019.8956794
“An Extended Floating Gate Gas Sensor using Polypyrrole as a Sensing Polymer,” Sixth International Conference on Sensing Technology (ICST), (2012) DOI: 10.1109/ICSensT.2012.6461686
"A Chemical Sensor Design Using a Standard CMOS Process," in 13th Canadian Semiconductor Technology Conference (2007), thesis
“An Integrated Chemical Sensor Array using Carbon Black Polymers and a Standard CMOS Process” Solid-State Sensor and Actuator Workshop, 162-165, (2000) available online
Chemically Diverse Sensor Arrays
“Analytes Discrimination with Chemically Diverse Sensor Array Based on Electrocopolymerized Pyrrole and Vinyl Derivatives” RSC Advances, (2016) DOI: 10.1039/c6ra03613a
“Chemically Diverse Sensor Arrays Based on Electrochemically Copolymerized Pyrrole and Styrene Derivatives” Sensors & Actuators: B. (2015) DOI: 10.1016/j.snb.2015.03.070
“Chemical Diversity in Electrochemically Deposited Conducting Polymer-based Sensor Arrays” Sensors & Actuators: B. (2014) DOI: 10.1016/j.snb.2014.05.120
“Exploitation of Spatiotemporal Information and Geometric Optimization of Signal/Noise Performance Using Arrays of Carbon Black/Polymer Composite Vapor Detectors” Sensors and Actuators B, (2002) DOI: 10.1016/S0925-4005(01)00991-1
“Sensor Systems,” Aerospace America, 35: 46-47, (1997)
“A Chemically Diverse, Conducting Polymer-Based “Electronic Nose,” Proc. Natl. Acad. Sci. U. S. A. (1995) DOI: 10.1073/pnas.92.7.2652
Sensing Applications
“A Review on Advanced Sensing Materials for Agricultural Gas Sensors” Sensors (review), (2021) DOI: 10.3390/s21103423
“Fluid Embeddable Coupled Coil Sensor for Wireless pH Monitoring in a Bioreactor" IEEE Trans. Instrum. Meas. (2014) DOI: 10.1109/TIM.2013.2292279
“A Wireless Passive Sensor for Temperature Compensated Remote pH Monitoring” IEEE Sensors Journal, (2013) DOI: 10.1109/JSEN.2013.2255519
“Polymer-Based Chemicapacitor Sensor for 1-Octanol and Relative Humidity Detections at Different Temperatures and Frequencies” IEEE Sensors Journal, (2013) DOI: 10.1109/JSEN.2012.2220760
“Fabrication and Optimization of a Conducting Polymer Sensor Array Using Stored Grain Model Volatiles. J. Agric. Food Chem. (ACS) (2012) DOI: 10.1021/jf204631q
“Carbon Black Polymer Sensor Array for Incipient Grain Spoilage Monitoring” Agricultural Research, (2012)
“Characterization of Volatile Organic Compounds Released by Granivorous Insects in Stored Wheat” J. Stored Prod. Res. (2012) DOI: 10.1016/j.jspr.2011.09.006
“Electrode Potential-Based Coupled Coil Sensor for Remote pH Monitoring” IEEE Sensor J. (2011) DOI: 10.1109/JSEN.2011.2170563