Bohaty Andrew K, Zharov Ilya
Department of Chemistry, University of Utah, Salt Lake City, Utah 84112, USA.
Langmuir. 2006 Jun 20;22(13):5533-6. doi: 10.1021/la0602463.
Suspended self-assembled opal membranes have been prepared from 440- or 170-nm-diameter silica spheres by evaporation of their colloidal solutions over vertically oriented 0.3-mm-thick silicon wafers containing frustum-shaped openings. Robust 0.5 x 0.5 mm(2) membranes with a thickness of ca. 300 mum have been reproducibly prepared using 170 nm silica spheres. The membranes show regular fcc packing with an exposed (111) orientation and are formed in a process that involves drawing silica spheres into the opening with the solvent meniscus.
通过在含有截头圆锥形状开口的垂直取向的0.3毫米厚硅片上蒸发其胶体溶液，由直径为440纳米或170纳米的二氧化硅球体制备了悬浮自组装蛋白石膜。使用170纳米的二氧化硅球体可重复制备出尺寸为0.5×0.5毫米²、厚度约为300微米的坚固膜。这些膜呈现出规则的面心立方堆积，具有暴露的（111）取向，并且是在一个涉及通过溶剂弯月面将二氧化硅球吸入开口的过程中形成的。
