Detection of magnetic resonance signals using a magnetoresistive sensor

A method and apparatus are described wherein a micro sample of a fluidic material may be assayed without sample contamination using NMR techniques, in combination with magnetoresistive sensors. The fluidic material to be assayed is first subject to pre-polarization, in one embodiment, by passage thr...

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Bibliographic Details
Main Authors HILTY CHRISTIAN, BUDKER DMITRY, PINES ALEXANDER, XU SHOUJUN, BOUCHARD LOUIS S, LEDBETTER MICAH P
Format Patent
LanguageEnglish
Published 01.10.2013
Subjects
CESSPOOLS
DETECTING MASSES OR OBJECTS
FIXED CONSTRUCTIONS
GEOPHYSICS
GRAVITATIONAL MEASUREMENTS
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES
MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES
MEASURING
MEASURING ELECTRIC VARIABLES
MEASURING MAGNETIC VARIABLES
NANOTECHNOLOGY
PERFORMING OPERATIONS
PHYSICS
SEWERAGE
SEWERS
SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES
TESTING
TRANSPORTING
WATER SUPPLY
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Summary:A method and apparatus are described wherein a micro sample of a fluidic material may be assayed without sample contamination using NMR techniques, in combination with magnetoresistive sensors. The fluidic material to be assayed is first subject to pre-polarization, in one embodiment, by passage through a magnetic field. The magnetization of the fluidic material is then subject to an encoding process, in one embodiment an rf-induced inversion by passage through an adiabatic fast-passage module. Thereafter, the changes in magnetization are detected by a pair of solid-state magnetoresistive sensors arranged in gradiometer mode. Miniaturization is afforded by the close spacing of the various modules.
Bibliography:Application Number: US20100753306