Methods and apparatus for particle detection
OwnerUlrich Schwarzinventor
Life of this patent
Estimating the term…
Abstract
A method of detecting the presence of a substance (32) to be detected on a surface of a substrate (21), the method comprising: i) providing magnetic particles (35) to the substrate (21) for binding with the substance (32) to be detected; and ii) determining the presence of the substance (32) to be detected by detecting the magnetoresistive effect of the magnetic particles (35) bound to the substance (32) to be detected on a magnetoresistive element (40) positioned proximate the substrate surface.
Claims25
A method of detecting the presence of a substance to be detected on a surface of a substrate, the method comprising:
- i) providing magnetic particles to the substrate for binding with the substance to be detected;
- and
- ii) determining the presence of the substance to be detected by detecting the magnetoresistive effect of the magnetic particles bound to the substance to be detected on a magnetoresistive element positioned proximate the substrate surface.
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An apparatus for detecting the presence of a substance to be detected on a substrate, the apparatus comprising:
- a magnetic field generator configured to apply an external magnetic field to a substrate to provide a magnetoresistive effect on a magnetic reader;
- a magnetic reader comprising a magnetoresistive element, the magnetic reader being configured to determine the presence on the substrate surface of the substance to be detected by detecting the magnetoresistive effect of magnetic particles bound to the substance to be detected when the magnetic reader is proximate the bound magnetic particles.
(canceled)
A kit for the detection of a substance, the kit comprising:
- the apparatus of any of preceding apparatus claim;
- a container comprising a suspension of magnetic particles labelled with a labelling compound capable of binding to the substance to be detected.
-28. (canceled)
Dependencies are inferred from the claim text.