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US 9,310,336 B1Granted
Identification of molecules based on frequency responses using electromagnetic write-heads and magneto-resistive sensors
AssigneeInternational Business Machines Corporation
InventorsAllen K. Bates, Anna W. Topol, Daniel J. Winarski
Life of this patent
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Abstract
The invention relates to the identification of molecules using electromagnetic write-heads and magneto-resistive sensors. In one embodiment, an electromagnetic write-head magnetically excites a molecule with an alternating magnetic field. A magneto-resistive sensor measures the resonant response of the magnetically excited molecule. A processor compares the resonant response to a table of known responses of different molecules to identify the chemical composition of the molecule based in whole or in part on the comparison.
Claims20
An apparatus, comprising:
- an electromagnetic write-head configured to magnetically excite a molecule to be identified with an alternating magnetic field, wherein the molecule to be identified is disposed on a biosample substrate configured for use with the apparatus;
- a magneto-resistive sensor configured to measure a resonant response of the magnetically excited molecule to be identified;
- and
- a processor coupled to the magneto-resistive sensor, the processor being configured to:
- compare the resonant response to a table of known resonant responses;
- and
- identify a chemical composition of the molecule to be identified based on the comparison.
4 more elements
Dependencies are inferred from the claim text.