Upconversion luminescence turning of NaREF4 (RE=0.4Y+0.4La+0.2 (Yb, Er, Tm)) nanoparticles and their applications for detecting Rhodamine B in shrimp

In vitro and in vivo bioimaging are carried out with shrimps using NaREF4 (RE=0.4Y+ 0.4La+0.2(Yb,Er,Tm)) upconversion nanoparticles (UCNPs) as probes. The residual organic dye RB in shrimp can be detected on the basis of luminescent resonance energy transfer (LRET)