ArticleAnalytical chemistry2012
Optical sensing by transforming chromophoric silver clusters in DNA nanoreactors.
Article in Analytical chemistry, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.
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Who cites it
19 citing papers in PubMed.
- Two of a Kind: Composition and Photophysics of Two Silver Nanoclusters Stabilized by the Same DNA Sequence.Journal of the American Chemical Society · 2026Article
- Fluorescent Silver Nanoclusters Associated with Double-Stranded Poly(dGdC) DNA.Nanomaterials (Basel, Switzerland) · 2025Article
- On the Chemical Stability of DNA-Stabilized Silver Nanoclusters.ACS omega · 2024Article
- A non-FRET DNA reporter that changes fluorescence colour upon nuclease digestion.Nature nanotechnology · 2024Article
- Interrupted DNA and Slow Silver Cluster Luminescence.The journal of physical chemistry. C, Nanomaterials and interfaces · 2023Article
- Structure and luminescence of DNA-templated silver clusters.Nanoscale advances · 2021Review
- The spatial organization of trace silver atoms on a DNA template.RSC advances · 2020Review
- Footprints of Nanoscale DNA-Silver Cluster ChromophoresACS nano · 2019Article
- Switchable Dual-Emissive DNA-Stabilized Silver Nanoclusters.ACS omega · 2019Article
- Amplification-free and direct fluorometric determination of telomerase activity in cell lysates using chimeric DNA-templated silver nanoclusters.Mikrochimica acta · 2019Article
- Article
- Circular exponential amplification of photoinduced electron transfer using hairpin probes, G-quadruplex DNAzyme and silver nanocluster-labeled DNA for ultrasensitive fluorometric determination of pathogenic bacteria.Mikrochimica acta · 2018Article
- A Biofunctional Molecular Beacon for Detecting Single Base Mutations in Cancer Cells.Molecular therapy. Nucleic acids · 2016Article
- DNA-Directed Fluorescence Switching of Silver Clusters.The journal of physical chemistry. C, Nanomaterials and interfaces · 2015Article
- A complementary palette of NanoCluster Beacons.ACS nano · 2014Article
- Near-infrared silver cluster optically signaling oligonucleotide hybridization and assembling two DNA hosts.Analytical chemistry · 2014Article
- A silver cluster-DNA equilibrium.Analytical chemistry · 2013Article
- DNA-Templated Molecular Silver Fluorophores.The journal of physical chemistry letters · 2013Article
- Silver clusters as both chromophoric reporters and DNA ligands.Analytical chemistry · 2013Article
Corrections and comments
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Authors and funding
7 authors.
Funding
Abstract
Bifunctional DNA oligonucleotides serve as templates for chromophoric silver clusters and as recognition sites for target DNA strands, and communication between these two components is the basis of an oligonucleotide sensor. Few-atom silver clusters exhibit distinct electronic spectra spanning the visible and near-infrared region, and they are selectively synthesized by varying the base sequence of the DNA template. In these studies, a 16-base cluster template is adjoined with a 12-base sequence complementary to the target analyte, and hybridization induces structural changes in the composite sensor that direct the conversion between two spectrally and stoichiometrically distinct clusters. Without its complement, the sensor strand selectively harbors ~7 Ag atoms that absorb at 400 nm and fold the DNA host. Upon association of the target with its recognition site, the sensor strand opens to expose the cluster template that has the binding site for ~11 Ag atoms, and absorption at 720 nm with relatively strong emission develops in lieu of the violet absorption. Variations in the length and composition of the recognition site and the cluster template indicate that these types of dual-component sensors provide a general platform for near-infrared-based detection of oligonucleotides in challenging biological environments.
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