Spectral identification and detection of curcumin based on lanthanide upconversion nanoparticles
Applied Surface Science(2020)
Abstract
The core/shell structured NaYF4:Tm3+,Yb3+@NaYF4@NH2 UCNPs were synthesized via a cothermolysis method and modified by PEI via a ligand exchange method. It is found that the core/shell structured UCNPs can improve the sensitivity for the detection of curcumin and the detection limits are 0.625 ng/mL.
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Key words
Upconversion nanoparticles,Core/shell structure,LRET,Curcumin
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