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US 7,118,881 B2Granted
Micro/nano-fabricated glucose sensors using single-walled carbon nanotubes
AssigneeNorthwestern University
InventorsJunghoon Lee, JaeHyun Chung, Kyong-Hoon Lee
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Abstract
A novel glucose sensor utilizing hydrogen-specific gas sensing capability of single walled carbon nanotubes assembled on microelectrodes. Highly specific glucose sensing was demonstrated using buffered sample solutions with clinically significant concentrations. The approach enables a simple but powerful bio-sensor reliably operating with a completely new principle, and opens up novel device applications where functional nano-components can be integrated into a bioMEMS device.
Claims7
A method of sensing glucose, said method comprising:
- providing an apparatus comprising a plurality of metallic single-walled carbon nanotubes with a voltage potential thereacross, said nanotubes arranged and configured to define at least one interstitial space and contacting a glucose oxidase component;
- introducing glucose to said glucose oxidase component;
- and
- monitoring electrical response upon interstitial sorption of hydrogen gas.
1 more element
Dependencies are inferred from the claim text.