A wireless, passive carbon nanotube-based gas sensor

By K. G. Ong, Kefeng Zeng, Craig A. Grimes. 2002

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Controlled fabrication of carbon nanotube NO2 gas sensor using dielectrophoretic impedance measurement (2005, methodology): “One advantage of the technique was that one could quantify the amount of trapped nanotubes on a real time basis by monitoring electrical impedance of the sensor (dielectrophoretic impedance measurement, DEPIM).”
A Review of Carbon Nanotubes-Based Gas Sensors (2009, background): “[68] built a wireless, inductor-capacitor resonantcircuit (LC) gas sensor with MWNT-SiO2 composite as the sensing layer.”
A Novel Conformal RFID-Enabled Module Utilizing Inkjet-Printed Antennas and Carbon Nanotubes for Gas-Detection Applications (2009, background): “Carbon nanotubes (CNT) composites have been found to have electrical conductance highly sensitive to extremely small quantities of gases, such as ammonia and nitrogen oxide [5], and be compatible with inkjet printing [6].”
Fundamental transmitting properties of carbon nanotube antennas (2005, background): “Carbon nanotubes have been made into transistors [6], [7], gas sensors [8], nanotweezers [9], and field emission devices [10], among other uses.”
LC Passive Wireless Sensors Toward a Wireless Sensing Platform: Status, Prospects, and Challenges (2016, background): “proposed an LC type gas sensor for CO2, O2, and NH3 [21], [95].”
Development of Carbon Nanotube-Based Sensors—A Review (2007, background): “However, as other designs show [78], this is not an insurmountable problem.”