Contact
    Start Publications Hexagonal Close-Packed Array Formed by Selective Adsorption ...
    ←  Publication Finder
    QSense

    Hexagonal Close-Packed Array Formed by Selective Adsorption onto Hexagonal Patterns

    Year: 2009

    Journal: Langmuir, 2009, 25 (6), pp 3327–3330, 20100827

    Authors: Matsukawa N. †, Nishio K. †, Sano K. ‡§, Shiba K. ‡§, Yamashita I. *†‡

    Last authors: I. Yamashita

    Organizations: Advanced Technology Research Laboratories, Panasonic, 3-4 Hikaridai, Seika-cho, Soraku-gun, Kyoto 619-0237, Japan, CREST, Japan Science and Technology Agency, 4-1-8 Honcho, Kawaguchi, Saitama 332-0012, Japan, Department of Protein Engineering, Cancer Institute, Japanese Foundation for Cancer Research, 3-10-6 Ariake, Koto-ku, Tokyo 135-8550, Japan, and Materials Science, Nara Institute of Science and Technology, 8916-5 Takayama, Ikoma, Nara 630-0192, Japan

    Country: Japan

    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.