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DNA probes are stretches of single-stranded DNA used to detect the presence of complementary nucleic acid sequences (target sequences) by hybridization. DNA probes are usually labelled, for example with radioisotopes, epitopes, biotin or fluorophores to enable their detection.
SABER-IMC combines DNA-based signal amplification by exchange reaction (SABER) with imaging mass cytometry (IMC) to enable simultaneous and highly multiplexed marker detection, even of low-abundance markers not detectable with IMC alone.
This protocol enables explicit regional and functional division of functional elements of solid-state nanochannels to improve the sensitivity and specificity of bioanalysis in complex matrices.
An assay leveraging strand-displacement reactions and enzymatic amplification for the recognition of viral RNA and implemented on origami paper allows for the fast colorimetric detection of SARS-CoV-2 variants, with single-nucleotide specificity.