Identification of molecules based on frequency responses using electromagnetic write-heads and magneto-resistive sensors

摘要

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 target molecule.

主权项

1. An apparatus for identifying a molecule, comprising:
a biosample substrate comprising a magnetic tape medium having a plurality of biosample tracks, configured to attach thereto a molecule to be identified; an electromagnetic write-head configured to magnetically excite the molecule to be identified with an alternating magnetic field; a magneto-resistive sensor for measuring a resonant response of the magnetically excited molecule to be identified; and a processor coupled to the magneto-resistive sensor for comparing the resonant response to a table of known resonant responses to identify a chemical composition of the molecule to be identified.