Hexagonal close-packed array formed by selective adsorption onto hexagonal patterns.
Hexagonal close-packed array formed by selective adsorption onto hexagonal patterns.
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DOI：
10.1021/la8032012
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发表时间：
2009-02
期刊：
影响因子：
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通讯作者：
N. Matsukawa;K. Nishio;Ken-Ichi Sano;Kiyotaka Shiba;Ichiro Yamashita
中科院分区：
文献类型：
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作者：
N. Matsukawa;K. Nishio;Ken-Ichi Sano;Kiyotaka Shiba;Ichiro Yamashita
以自组装的方式在硅衬底上制备的六边形Ti薄膜岛上实现了铁蛋白分子的图案化二维六边形有序阵列，其外表面已被钛（Ti）特异性结合肽（minT 1-LF）基因修饰。最佳程度的顺序实现在pH值与最大的选择性minT 1-LF吸附在Ti表面上相对于二氧化硅（SiO2）表面。石英晶体微天平（QCM）测试结果表明，minT 1-LF在Ti表面的吸附强烈且不可逆，而在SiO2表面的吸附较弱且可逆。这表明，在Ti图案上的minT 1-LF浓度促进六方密排有序和轴对齐。
A patterned two-dimensional hexagonally ordered array of ferritin molecules, the outer surfaces of which had been genetically modified by titanium (Ti) specific binding peptides (minT1-LF), was realized in a self-assembling manner on a hexagonal Ti thin film island made on a silicon substrate. The optimum degree of order was realized at the pH with the maximum selectivity of minT1-LF adsorption on the Ti surface with respect to the silicon dioxide (SiO2) surface. Quartz crystal microbalance (QCM) measurement revealed that minT1-LF adsorbed onto the Ti surface strongly and irreversibly, but adsorbed onto the silicon dioxide surface weakly and reversibly. It was suggested that the concentration of minT1-LF on the Ti pattern promotes hexagonal close-packed ordering and axis aligning.