Solvothermal Method Preparation of Nano Y2O2S:Eu3+ and Research of Luminescence Property and Cytotoxicity

Abstract

Series sample were prepared with solvothermal method using ethylene-diomine as solvent, at 220°C for 24h. All samples are white powder and XRD proofs that all of them are single phases. Using the Laser granularity cryoscopy (rise 2008) to measure the samples size , and most samples sizes are from 150nm to 200nm. SEM photo shows that the Y2O2S:Eu3+morphologies are spherical but have some aggregation. And Y2O2S:Eu3+has a better a anti-decay property compared with Rhodamine B. The Cell toxicity test (MTT) shows that when concentration range in 20-80mg/ml, the cytotoxicity of sample is relatively small ,but as a good bio-marker materials in tumors diagnosis , its toxicity is still high.