Background defocusing and clearing in ferrofluid-based capture assays
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United States of America
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Mar 29, 2022
Grant Date -
Dec 20, 2018
app pub date -
Jun 24, 2016
filing date -
Jun 24, 2016
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Abstract
Devices, methods, and systems are provided for extracting particles from a ferrofluid. Such methods may comprise receiving a flow of ferrofluid comprising target particles and background particles and generating a first, focusing magnetic field to focus the target particles towards a capture region. The capture region may capture the target particles and a plurality of background particles. A second, defocusing magnetic field may be configured to remove background particles from the capture region. A detector may be used to detect the target particles bound to the target region.
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