Related Experiment Video
Updated: Jun 5, 2026
12:20
Fabrication of Carbon Nanotube High-Frequency Nanoelectronic Biosensor for Sensing in High Ionic Strength Solutions
Published on: July 22, 2013
Formaldehyde gas sensing chip based on single-walled carbon nanotubes and thin water layer
Ji Yeon Kim1, Joohyung Lee, Seunghun Hong
1Department of Chemistry, Seoul National University, Seoul 151-747, Korea.
Chemical Communications (Cambridge, England)
|January 19, 2011
Abstract:
We report a unique gaseous formaldehyde sensing chip based on a combination between patterned single-walled carbon nanotube field effect transistors and a precisely controlled aqueous layer with photopolymerized polyelectrolytic gels. The proposed system reliably detects 0.1 ppb level formaldehyde gas, suggesting a new type of indoor air quality monitoring device.
