Inventors:
- Atlanta GA, US
Oliver Brand - Atlanta GA, US
Kemal Safak Demirci - Atlanta GA, US
Jae Hyeong Seo - Atlanta GA, US
Steven Andrew Schwartz - Atlanta GA, US
International Classification:
G01N 29/02
G01N 27/22
G01N 29/036
Abstract:
Disclosed herein is a chemical sensing system, comprising: a sensor configured to adsorb an analyte; an electronic circuit to operate the sensor; and a microcontroller in communication with the sensor and the electronic circuit. The microcontroller can also be configured to provide a real-time signal indicative of a concentration of the analyte. The sensor can comprise a microelectromechanical system (MEMS) resonator and a sensing film configured to adsorb the analyte, the sensing film coating at least a portion of the sensor. The MEMS resonator can comprise a second sensor, such as an impedimetric sensor to measure at least a second property of the sensing film. The electronic circuit can process signals stemming from at least two properties of the same sensing film, such as the changes in mass and dielectric constant of the same sensing film due to adsorption of analyte.
