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Nanoscopic Electrode Molecular Probes

ORNL researchers invented a nanoscopic electrode system for measuring the electron transport properties of a molecule. This invention offers a means of enhancing measurements of a molecule positioned between two nanoscopic electrodes for study. Currently, molecular sensing and identification is challenged by uncertainty in conductance measurements.

In this invention, a molecule of interest is placed inside the nanogap created between electrically conductive carbon-based electrodes functionalized with a selected dopant atom. The calculated current response of the molecule results in a many-orders-of-magnitude improvement in enhanced current response; this response yields improved molecular recognition.

The resulting measurement could be used as a sequencing method when a DNA strand is threaded inside the nanogap created between the electrodes, or for detection/recognition of biomolecules.

Physics Division, Computer Science and Mathematics Division
Oak Ridge National Laboratory
Group Leader, Technology Commercialization
Oak Ridge National Laboratory
Phone: 865.574-4180
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