期刊
CERAMICS INTERNATIONAL
卷 44, 期 16, 页码 19570-19575出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.ceramint.2018.07.201
关键词
Cerium oxide nanoparticles; Carrageenan; Sol-gel; Cytotoxicity; FESEM
资金
- Mashhad University of Medical Sciences [921955]
Carrageenan hydrogel as a greener and a vegetable-based stabilizing agent has the potential for many biosyntheses of different nanoparticles by sol-gel method. Herein, we describe for the first time an economic and eco-friendly preparation of cerium oxide nanoparticles (CeO2-NPs) using carrageenan. When carrageenan hydrogel comes in contact with a cerium nitrate solution, cerium ions anchor themselves to the -SO3- groups into the carrageenan and after the gelation process, have fewer opportunities escaping from the polymeric network. The CeO2-NPs were well-prepared and successfully characterized by PXRD, FTIR, FESEM, UV-Vis, and TGA-DTA. The calcined CeO2-NPs showed strong UV absorption (lambda(max) = 328 nm) with the calculated band gap of 2.69 eV. The results obtained from FESEM images indicate that CeO2-NPs obtained at 600 degrees C ranges from 18 to 60 nm and have a mean diameter of similar to 34 nm. The in vitro cytotoxicity study on WEHI 164 cell line has mentioned low toxic and non-toxic CeO2-NPs in a range of concentrations (0.97-250 mu g/ml), thus, we reckon that the greener synthesized CeO2-NPs will have persistent utilization in various fields of medical applications.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据