Increasing efficiency of spatial analysis in a biological sample

    公开(公告)号:US12286673B2

    公开(公告)日:2025-04-29

    申请号:US18340511

    申请日:2023-06-23

    Abstract: Disclosed herein are methods of amplifying an analyte in a biological sample using a bridging oligonucleotide that hybridizes to a captured analyte. The methods disclosed herein include steps of (a) contacting a biological sample with a substrate having capture probes comprising a capture domain and a spatial barcode; (b) hybridizing the analyte to the capture domain; and (c) contacting the analyte to a bridging oligonucleotide comprising (i) a capture-probe-binding sequence, and (ii) an analyte-binding sequence; (d) extending the bridging oligonucleotide; and (e) determining (i) all or a part of the sequence of the analyte, or a complement thereof, and (ii) the spatial barcode, or a complement thereof, and using the determined sequence of (i) and (ii) to determine the location of the analyte in the biological sample.

    FLUID DELIVERY METHODS
    35.
    发明申请

    公开(公告)号:US20240408593A1

    公开(公告)日:2024-12-12

    申请号:US18664237

    申请日:2024-05-14

    Abstract: Provided herein is a fluid delivery method for permeabilizing a biological sample. The method includes delivering the fluid to a first substrate and/or a second substrate. At least one of the first substrate and the second substrate includes a spacer. The method further includes assembling, subsequent to the delivering, a chamber comprising the first substrate, the second substrate, the biological sample, and the spacer. The spacer may be disposed between the first substrate and second substrate. The spacer may be configured to maintain the fluid within the chamber and maintain a separation distance between the first substrate and the second substrate. The spacer may be positioned to at least partially surround an area on the first substrate on which the biological sample is disposed and/or at least partially surround the array disposed on the second substrate.

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