Unusually large fluorescence quantum yield for a near-infrared emitting DNA-stabilized silver nanocluster

A near-infrared emitting DNA-stabilized silver nanocluster (DNA-AgNC) with an unusually high fluorescence quantum yield is presented. The steady-state and time-resolved fluorescence properties of the DNA-AgNC were characterized, together with its ability to generate optically activated delayed fluor...

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Bibliographic Details
Published in:Chemical communications (Cambridge, England) England), 2020-06, Vol.56 (47), p.6384-6387
Main Authors: Neac u, Vlad A, Cerretani, Cecilia, Liisberg, Mikkel B, Swasey, Steven M, Gwinn, Elisabeth G, Copp, Stacy M, Vosch, Tom
Format: Article
Language:English
Subjects:
Deoxyribonucleic acid
DNA
DNA - chemistry
Fluorescence
Infrared Rays
Metal Nanoparticles - chemistry
Nanoclusters
Near infrared radiation
Silver - chemistry
Spectrometry, Fluorescence
Steady state
Upconversion
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Summary:A near-infrared emitting DNA-stabilized silver nanocluster (DNA-AgNC) with an unusually high fluorescence quantum yield is presented. The steady-state and time-resolved fluorescence properties of the DNA-AgNC were characterized, together with its ability to generate optically activated delayed fluorescence (OADF) and upconversion fluorescence (UCF). Silver nanoclusters stabilized by 5′-CCCGGAGAAG-3′ DNA strands display an unusually high fluorescence quantum yield in the near-infrared region.
ISSN:1359-7345
1364-548X
DOI:10.1039/d0cc01849j