ABSTRACT
ABSTRACT: A series of Y2O2S:Eu3+ samples were prepared by the solvothermal method using ethylenediamine as the solvent at 220°C for 24 h. All samples were white powders. X-Ray Diffraction (XRD) proved that all of them were of a single phase. The Laser granularity cryoscopy (rise 2008) was used to measure the size of the samples, and most of the samples sizes ranged from 150 nm to 200 nm. The Scanning Electron Microscopy (SEM) image showed that the morphologies of Y2O2S:Eu3+ were spherical, but these morphologies had an aggregation phenomenon. The cell toxicity test (MTT) showed that the cytotoxicity of the sample is relatively low (growth inhibition rate is low) when the concentration of the Y2O2S:Eu3+0.01 samples ranged from 10 to 50 μg/ml. This study explored the preparation of Y2O2S and its biocompatibility, and thus aimed to provide a scientific basis for Y2O2S as a drug carrier.