Polyethyleneimine (PEI) functionalized multicolor luminescent LaF3 nanoparticles were synthesized via a novel microwave-assisted method, which can achieve fast and uniform heating under eco-friendly and energy efficient conditions. The as-prepared nanoparticles possess a pure hexagonal structure with an average size of about 12 nm. When doped with different ions (Tb3+ and Eu3+), the morphology and structure of the nanoparticles were not changed, whereas the optical properties varied with doped ions and their molar ratio, and as a result emission of four different colors (green, yellow, orange and red) were achieved by simply switching the types of doping ions (Eu3+ versus Tb3 +) and the molar ratio of the two doping ions.
NaYF4:Yb,Tm nanoparticles possessing blue upconversion emission were prepared by microwave-assisted solvothermal method, and used as the donor to set up a luminescence resonance energy transfer system with doxorubicin for rapid detection of doxorubicin. There was a linear relationship of I = 4.98×102 - 9.92C (R = 0.9995) between luminescent intensity and concentration of doxorubicin in the range of 0-66.23 mmol·L-1. A detection limit of 0.69 mmol·L-1 (3s) was obtained by the LRET system with a RSD of 1.6% (60 mmol·L-1 , n=11). This approach is expected to be used for the clinical detection of doxorubicin in medicine.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.