Ontology highlight
ABSTRACT:
SUBMITTER: Li S
PROVIDER: S-EPMC4019454 | biostudies-literature | 2014 Apr
REPOSITORIES: biostudies-literature
New journal of chemistry = Nouveau journal de chimie 20140401 4
Fluorescent metal nanoclusters (NCs) have given rise to a new class of fluorescent nanomaterials for the detection of heavy metals. Here, we design a simple, rapid and highly sensitive sensing nanosystem for the detection of Hg<sup>2+</sup> and Cu<sup>2+</sup> based on fluorescence quenching of ultrasmall DNA-Ag NCs. The fluorescence intensity of DNA-Ag NCs was selectively quenched by Hg<sup>2+</sup> and Cu<sup>2+</sup>, and the limit of detection (LOD) was found to be 5 nM and 10 nM, respective ...[more]