Size-Selective Organization of Silica and Silica-Like Particles on Solid Interfaces through Layer-by-Layer Assembly
Size-Selective Organization of Silica and Silica-Like Particles on Solid Interfaces through Layer-by-Layer Assembly
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DOI：
10.1023/b:jsst.0000047960.00667.20
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发表时间：
2004-08
影响因子：
2.5
通讯作者：
Kiyofumi Katagiri;Ryo Hamasaki;Mineo Hashizume;K. Ariga;J. Kikuchi
中科院分区：
文献类型：
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作者：
Kiyofumi Katagiri;Ryo Hamasaki;Mineo Hashizume;K. Ariga;J. Kikuchi
采用逐层组装技术，我们在固体界面上创建了二氧化硅和二氧化硅样颗粒的三维结构。原子力和扫描电子显微镜证实了组装的两种单分散二氧化硅颗粒通过溶胶-凝胶过程制备的混合物的尺寸选择效果。尺寸选择性组装也适用于神经酰胺脂质体的逐层组织，神经酰胺脂质体是在脂质双层表面上具有二氧化硅样结构的有机-无机囊泡杂化物。本研究从表面改性的阳离子Cerasome与未改性的阴离子Cerasome或阴离子聚（硫酸乙烯酯）的多分散水性胶体中获得了在固体界面上具有相对均匀尺寸的Cerasome的交替层-层组装体。石英晶体微天平测量和原子力显微镜被用来评估这一组装过程。
Employing a layer-by-layer assembly technique, we created three-dimensional architectures of silica and silica-like particles on solid interfaces. Atomic force and scanning electron microscopy confirmed a size-selection effect for assembling a mixture of two kinds of monodispersed silica particles prepared through the sol-gel process. Size-selective assembly was also applied for layer-by-layer organization of Cerasomes, which are organic-inorganic vesicular hybrids with a silica-like structure on the lipid bilayer surface. This study obtained an alternating layer-by-layer assembly of Cerasomes with a relatively uniform size on solid interfaces from polydispersed aqueous colloids of a surface-modified cationic Cerasome with an unmodified anionic Cerasome or an anionic poly(vinyl sulfate). Quartz crystal microbalance measurements and atomic force microscopy were used to evaluate this assembly process.