介孔材料
纳米颗粒
纳米技术
介孔二氧化硅
材料科学
纳米材料
无定形固体
纳米医学
粒子(生态学)
外延
介孔有机硅
芯(光纤)
药物输送
催化作用
化学工程
化学
有机化学
复合材料
海洋学
图层(电子)
地质学
工程类
作者
Teeraporn Suteewong,Hiroaki Sai,Robert Hovden,David A. Muller,Michelle S. Bradbury,Sol M. Grüner,Ulrich Wiesner
出处
期刊:Science
[American Association for the Advancement of Science (AAAS)]
日期:2013-04-19
卷期号:340 (6130): 337-341
被引量:152
标识
DOI:10.1126/science.1231391
摘要
Mesoporous nanomaterials have attracted widespread interest because of their structural versatility for applications including catalysis, separation, and nanomedicine. We report a one-pot synthesis method for a class of mesoporous silica nanoparticles (MSNs) containing both cubic and hexagonally structured compartments within one particle. These multicompartment MSNs (mc-MSNs) consist of a core with cage-like cubic mesoporous morphology and up to four branches with hexagonally packed cylindrical mesopores epitaxially growing out of the cubic core vertices. The extent of cylindrical mesostructure growth can be controlled via a single additive in the synthesis. Results suggest a path toward high levels of architectural complexity in locally amorphous, mesostructured nanoparticles, which could enable tuning of different pore environments of the same particle for specific chemistries in catalysis or drug delivery.
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