4.6 Article

Label-free fluorescent detection of copper(II) using DNA-templated highly luminescent silver nanoclusters

Journal

ANALYST
Volume 136, Issue 24, Pages 5139-5142

Publisher

ROYAL SOC CHEMISTRY
DOI: 10.1039/c1an15891k

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Funding

  1. Fundamental Research Funds for the Central Universities
  2. [NSF21075040]
  3. [09JC1404100]
  4. [11XD1401900]

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Novel luminescent silver nanoclusters (AgNCs) were synthesized utilizing DNA as templates by a simple, rapid and one-pot procedure. Luminescence studies indicated that these DNA-AgNCs exhibited strong emission with peak maximum at 624 nm. The fluorescence of the DNA-AgNCs was found to be quenched by Cu2+ enabling its detection with high sensitivity and selectivity.

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