科研之友
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摘要
A label-free colorimetric protocol based on peptide nucleic acid/silver nanoparticles (PNA/AgNPs) has been initially proposed for specific recognition of mRNA. Making use of the controlled silver nanoparticles aggregation/dispersion by PNA/PNA-RNA complex, proto-oncogene c-Myc mRNA detection can be achieved. Moreover, the PNA/AgNPs platform can undergo color change in response to target c-Myc mRNA with single-base-mismatch sensitivity, which could further help in visually identify single nucleotide differences in target genes.
