Hexagonal close-packed array formed by selective adsorption onto hexagonal patterns.
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.
Matsukawa
N
N
Advanced Technology Research Laboratories, Panasonic, 3-4 Hikaridai, Seika-cho, Soraku-gun, Kyoto 619-0237, Japan.
Nishio
K
K
Sano
K
K
Shiba
K
K
Yamashita
I
I
D000327:Adsorption; D001672:Biocompatible Materials / Q000737:chemistry; D002244:Carbon / Q000737:chemistry; D003460:Crystallization; D005293:Ferritins / Q000737:chemistry*; D006863:Hydrogen-Ion Concentration; D008422:Materials Testing; D018625:Microscopy, Atomic Force / Q000379:methods; D008855:Microscopy, Electron, Scanning; D010455:Peptides / Q000737:chemistry; D011791:Quartz; D012822:Silicon Dioxide / Q000737:chemistry; D013499:Surface Properties; D014025:Titanium / Q000737:chemistry*
D001672:Biocompatible Materials; D010455:Peptides; D011791:Quartz; D002244:Carbon; D012822:Silicon Dioxide; D005293:Ferritins; D014025:Titanium