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JoVE Journal
Bioengineering

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Fabrication of Carbon Nanotube High-Frequency Nanoelectronic Biosensor for Sensing in High Ionic Strength Solutions
 

Fabrication of Carbon Nanotube High-Frequency Nanoelectronic Biosensor for Sensing in High Ionic Strength Solutions

Article DOI: 10.3791/50438-v 12:20 min July 22nd, 2013
July 22nd, 2013

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Summary

We describe the device fabrication and measurement protocol for carbon nanotube based high frequency biosensors. The high frequency sensing technique mitigates the fundamental ionic (Debye) screening effect and allows nanotube biosensor to be operated in high ionic strength solutions where conventional electronic biosensors fail. Our technology provides a unique platform for point-of-care (POC) electronic biosensors operating in physiologically relevant conditions.

Tags

Carbon Nanotube High-frequency Nanoelectronic Biosensor Sensing Ionic Strength Solutions Electronic Properties Surface-to-volume Ratios Single-walled Carbon Nanotubes Semiconductor Nanowires Biosensors Charged Molecule Carrier Density DC Conductance Ionic Solution Electrical Double Layer (EDL) Charge Screening Length Debye Length Charge-based Detection Molecular Dipoles High Frequency Mixers Solution Drag Transconductance
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