用于去除表面活性剂以形成胶体介孔二氧化硅纳米粒子的透析过程。
Dialysis process for the removal of surfactants to form colloidal mesoporous silica nanoparticles.
机构信息
Faculty of Science & Engineering, Waseda University, Ohkubo 3-4-1, Shinjuku, Tokyo 169-8555, Japan.
出版信息
Chem Commun (Camb). 2009 Sep 14(34):5094-6. doi: 10.1039/b908625k. Epub 2009 Jul 29.
DOI:10.1039/b908625k
PMID:20448957
Abstract
Colloidal mesoporous silica nanoparticles less than 20 nm in diameter are prepared by dialysis; this simple surfactant removal route can avoid aggregation by sedimentation-redispersion and remove cationic surfactants while retaining the original colloidal state, which is applicable to the preparation of primary nanoparticles carrying a functional organic substance.
摘要
小于 20nm 直径的胶体介孔硅纳米粒子是通过透析制备的；这种简单的去除表面活性剂的方法可以避免通过沉淀再分散引起的聚集，并去除阳离子表面活性剂，同时保留原始胶体状态，适用于制备携带功能有机物质的初级纳米粒子。
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