Carbon nanotube biosensors with aptamers as molecular recognition elements and method for sensing target material using the same
US7854826B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 7, 2007 |
| Grant date | Dec 21, 2010 |
| Priority date | — |
| Expiry date | Dec 24, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N33/551
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The present invention relates to a carbon nanotube transistor biosensor with aptamers and a method for detecting a target material using the same, more particularly to a carbon nanotube transistor biosensor recognizing the target material, i.e., a specific molecule (such as a protein, a peptide, an amino acid, and an organic/inorganic compound) by using DNA aptamers and a method for screening a target material using the same. In the biosensor of the present invention, the aptamers binding specifically to a particular protein are adsorbed on a carbon nanotube constituting the channel domain of carbon nanotube transistor to easily detect/identify a particular protein via the electric conductivity of carbon nanotube that varies if the particular protein is exposed to corresponding aptamers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.