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Catalog Products> | ... NaBH 4 was purchased from Tianjin Chemical Reagent Institude. All the synthetic oligonucleotides were purchased from GenScript Biotechnology Co., Ltd. (Nanjing, China) and the corresponding sequences were listed in Table S1 of Supplementary Material. ... | Get A Quote |
Herein the influence of ultrasmall Ag nanoclusters (Ag NCs) against CdS quantum dots (QDs) in a photoelectrochemical (PEC) nanosystem was exploited for the first time, based on which a novel PEC bioanalysis was successfully developed via the efficient quenching effect of Ag NCs against the CdS QDs. In a model system, DNA assay was achieved by using molecular beacon (MB) probes anchored on a CdS QDs modified electrode, and the MB probes contain two segments that can hybridize with both target DNA sequence and the label of DNA encapsulated Ag NCs. After the MB probe was unfolded by the target DNA sequence, the labels of oligonucleotide encapsulated Ag NCs would be brought in close proximity to the CdS QDs electro... More