Biological sample preparation using electric fields
US12228480B2 · kind B2 · utility
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31Claims
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Key dates
| Filing date | Nov 26, 2019 |
| Grant date | Feb 18, 2025 |
| Priority date | — |
| Expiry date | Apr 13, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2001/4038
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Systems and methods use electric fields to separate bioanalytes from a substrate comprising a biological sample. Biological material, especially blood samples, are sometimes dried onto absorbent substrates. By applying an electric field across the substrate, or a portion thereof, bioanalytes from the sample are attracted to a conductor having a positive or negative charge, depending on the charges carried by the bioanalytes. The electric field can be created using two conductors in circuit with a power source, and the substrate may be positioned between the conductors.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.