RNA Detection
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United States of America Patent
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Issued Date -
Feb 23, 2023
app pub date -
Dec 21, 2020
filing date -
Dec 21, 2020
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Abstract
Methods for RNA detection in biological samples include (a) contacting a biological sample with a first composition featuring multiple different types of unlabeled oligonucleotide probes that hybridize to RNA species in the sample; (b) contacting the biological sample with a hybridization agent featuring a chaotropic compound; (c) contacting the biological sample with a second composition that includes multiple different types of labeled oligonucleotide probes, where each of the different types of labeled oligonucleotide probes selectively hybridizes to one of the different types of unlabeled oligonucleotide probes; (d) obtaining at least one image of the biological sample with the multiple different types of labeled oligonucleotide probes bound to the sample; and (e) identifying spatial locations of the RNA species in the sample based on components of the at least one image that correspond to the different types of labeled oligonucleotide probes, where the biological sample is contacted with the second composition under isothermal conditions.
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