Ontology highlight
ABSTRACT:
SUBMITTER: Sorgenfrei S
PROVIDER: S-EPMC3735439 | biostudies-literature | 2011 Sep
REPOSITORIES: biostudies-literature
Nano letters 20110801 9
Point-functionalized carbon nanotube field-effect transistors can serve as highly sensitive detectors for biomolecules. With a probe molecule covalently bound to a defect in the nanotube sidewall, two-level random telegraph noise (RTN) in the conductance of the device is observed as a result of a charged target biomolecule binding and unbinding at the defect site. Charge in proximity to the defect modulates the potential (and transmission) of the conductance-limiting barrier created by the defec ...[more]