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A simple and sensitive fluorescence turn‐off‐on sensor was established by means of S,N co‐doped carbon dots (S,N‐CDs) and Ag nanoparticles (AgNPs) for the determination of Hg2+. For this purpose, blue emissive S,N‐CDs were hydrothermally synthesized and characterized using transmission electron microscopy, Fourier transform infrared spectroscopy, and energy dispersive X‐ray spectroscopy. We observed...
Gold nanostars have interesting and unique surface plasmonic properties originating from their multi-branched shape with sharp tips. We demonstrate here the first use of gold nanostars in chemiluminescence (CL) field by studying their effect on H2O2-IO4− reaction. Nanostars, prepared by seed-mediated growth in poly(vinylpyrrolidone) solution in DMF, remarkably enhance the CL intensity of this reaction...
In this paper, we investigated the interaction of carbon dots (C-dots) prepared from orange juice with silver nanoparticles (AgNPs) using fluorescence spectroscopy. It was found that AgNPs efficiently quench the fluorescence of C-dots as a result of fluorescence resonance energy transfer (FRET). Thus, a novel FRET system between C-dots (as the donor) and AgNPs (as the acceptor) was introduced. Moreover,...
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