Label-free fluorescent detection of copper(II) using DNA-templated highly luminescent silver nanoclusters.
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 Cu(2+) enabling its detection with high sensitivity and selectivity.
Lab of Biosystems and Microanalysis, East China University of Science and Technology, Shanghai, China.
Min
M
Zhang
Bang-Ce
BC
Ye
D001894:Borohydrides / Q000737:chemistry; D003300:Copper / Q000032:analysis*; D004247:DNA / Q000737:chemistry*; D053768:Metal Nanoparticles / Q000737:chemistry*; D012834:Silver / Q000737:chemistry*; D013050:Spectrometry, Fluorescence
D001894:Borohydrides; D012834:Silver; D003300:Copper; C025364:sodium borohydride; D004247:DNA