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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Veröffentlicht in:	Chemical communications (Cambridge, England) England), 2020-06, Vol.56 (47), p.6384-6387
Hauptverfasser:	Neac u, Vlad A, Cerretani, Cecilia, Liisberg, Mikkel B, Swasey, Steven M, Gwinn, Elisabeth G, Copp, Stacy M, Vosch, Tom
Format:	Artikel
Sprache:	eng
Schlagworte:	chemical compounds chemical reactions Deoxyribonucleic acid DNA DNA - chemistry Fluorescence Infrared Rays Metal Nanoparticles - chemistry Nanoclusters nanosilver Near infrared radiation Silver - chemistry Spectrometry, Fluorescence Steady state Upconversion
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Beschreibung
Zusammenfassung:	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 1364-548X
DOI:	10.1039/d0cc01849j