COVALENT ATTACHMENT OF SPLINT OLIGONUCLEOTIDES FOR MOLECULAR ARRAY GENERATION USING LIGATION

    公开(公告)号:US20240167077A1

    公开(公告)日:2024-05-23

    申请号:US18215299

    申请日:2023-06-28

    CPC classification number: C12Q1/6806 C12Q1/6874 C12Q2600/166

    Abstract: Provided in some aspects are methods for light-controlled in situ surface patterning of a substrate. Compositions such as nucleic acid arrays produced by the methods are also disclosed. In some embodiments, a method disclosed herein comprises using photocontrollable ligation of nucleic acid molecules with splints, wherein at least one of the splints comprises a photo-crosslinkable moiety. Photo-induced crosslinking of the splint to oligonucleotide molecules immobilized on a substrate allows the splint to remain attached to the oligonucleotide molecules during subsequent rounds of photoresist application and removal. A large diversity of barcodes can be created in molecules on the substrate via sequential rounds of light exposure, hybridization, and ligation.

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