Engineering the defect state and reducibility of ceria based nanoparticles for improved anti-oxidation performance
Wang, YJ; Dong, H; Lyu, GM; Zhang, HY; Ke, J; Kang, LQ; Teng, JL; Sun, LD; Si, R; Zhang, J; Liu, YJ; Zhang, YW; Huang, YH; Yan, CH; Zhang J(张静)
刊名NANOSCALE
2015
卷号7期号:33页码:13981-13990
学科分类Chemistry; Science & Technology - Other Topics; Materials Science; Physics
DOI10.1039/c5nr02588e
文章类型Article
英文摘要Due to their excellent anti-oxidation performance, CeO2 nanoparticles receive wide attention in pharmacological application. Deep understanding of the anti-oxidation mechanism of CeO2 nanoparticles is extremely important to develop potent CeO2 nanomaterials for anti-oxidation application. Here, we report a detailed study on the anti-oxidation process of CeO2 nanoparticles. The valence state and coordination structure of Ce are characterized before and after the addition of H2O2 to understand the anti-oxidation mechanism of CeO2 nanoparticles. Adsorbed peroxide species are detected during the anti-oxidation process, which are responsible for the red-shifted UV-vis absorption spectra of CeO2 nanoparticles. Furthermore, the coordination number of Ce in the first coordination shell slightly increased after the addition of H2O2. On the basis of these experimental results, the reactivity of coordination sites for peroxide species is considered to play a key role in the anti-oxidation performance of CeO2 nanoparticles. Furthermore, we present a robust method to engineer the anti-oxidation performance of CeO2 nanoparticles through the modification of the defect state and reducibility by doping with Gd3+. Improved anti-oxidation performance is also observed in cell culture, where the biocompatible CeO2-based nanoparticles can protect INS-1 cells from oxidative stress induced by H2O2, suggesting the potential application of CeO2 nanoparticles in the treatment of diabetes.
类目[WOS]Chemistry, Multidisciplinary ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied
收录类别SCI ; EI
WOS记录号WOS:000359546900022
引用统计
被引频次:20[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/228673
专题中国科学院高能物理研究所_多学科研究中心_期刊论文
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Wang, YJ,Dong, H,Lyu, GM,et al. Engineering the defect state and reducibility of ceria based nanoparticles for improved anti-oxidation performance[J]. NANOSCALE,2015,7(33):13981-13990.
APA Wang, YJ.,Dong, H.,Lyu, GM.,Zhang, HY.,Ke, J.,...&张静.(2015).Engineering the defect state and reducibility of ceria based nanoparticles for improved anti-oxidation performance.NANOSCALE,7(33),13981-13990.
MLA Wang, YJ,et al."Engineering the defect state and reducibility of ceria based nanoparticles for improved anti-oxidation performance".NANOSCALE 7.33(2015):13981-13990.
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