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An electrochemiluminescence resonance energy transfer (ECL-RET) system that detects prostate-specific antigen (PSA) was created. Near-infrared (NIR)-emitting NaYF4:Yb,Tm/Mn upconverting nanoparticles (UCNPs) are used as donors, and gold nanorods (GNRs) are used as acceptors. The ECL was enhanced nearly threefold by Mn2+ doping, with an emission peak appearing at an NIR wavelength of 808 nm. Anti-PSA...
With the biomolecule glutathione (GSH) as a capping ligand, Eu 3+ -doped cadmium sulfide composite nanoparticles were successfully synthesized through a straightforward one-pot process. An efficient fluorescence energy transfer system with CdS nanoparticles as energy donor and Eu 3+ ions as energy accepter was developed. As a result of specific interaction, the fluorescence intensity...
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