Enzyme-free and label-free miRNA detection based on target-triggered catalytic hairpin assembly and fluorescence enhancement of DNA-silver nanoclusters
A label-free and turn-on strategy for H2O2 and glucose detection based on the cleavage of ssDNA by ˙OH and the fluorescence enhancement effect when guanine-rich (G-rich) DNA sequences are in proximity to DNA–silver nanoclusters (DNA–Ag NCs).
A hybridization chain reaction (HCR) lightened by DNA-stabilized silver nanoclusters (AgNCs) as a label-free and turn on fluorescence platform for nucleic acid assays.
A target-triggered catalytic hairpin assembly with a G-quadruplex specific fluorescent binder, NMM, is employed to develop a novel and sensitive RNase H activity assay.
A label-free DNA biosensor with high sensitivity and selectivity is constructed by using DNA–Ag NCs and Exo III-catalyzed target recycling amplification.
