期刊
CRYSTAL GROWTH & DESIGN
卷 11, 期 6, 页码 2540-2545出版社
AMER CHEMICAL SOC
DOI: 10.1021/cg200299y
关键词
-
资金
- Ministry of Education, Culture, Sports, Science and Technology, Japan
- Human Frontier Science Program [RGP61/2007]
We developed an environmentally friendly method for the synthesis of cerium (Ce) oxide nanoparticles (NPs) and their two- and three-dimensional array formation using the cage shaped protein apoferritin. Apoferritin was used as a biotemplate for Ce oxide NP synthesis, and the cavity served as a restricted chemical reaction space where the trivalent Ce ions were oxidized and formed a Ce oxide NP through a process similar to iron oxide formation. The obtained Ce oxide NPs were characterized as CeO2, and their size was 5.0 +/- 0.7 nm. Salt bridge formation between ferritins (apoferritins each containing a NP) by multivalent Ce ions was investigated. The best conditions of salt bridge formation produced a two-dimensional array of Ce oxide NP containing ferritin with a domain size of over 500 nm which has the potential to be used as an effective catalytic NP array. Three-dimensional arrays of Ce oxide NP containing ferritin with either an octahedral or prismlike morphology were also studied.
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