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Your search keyword '"Takahashi, Masahide"' showing total 14 results
Start Over Author "Takahashi, Masahide" Journal scientific reports
14 results on '"Takahashi, Masahide"'

9. Identification of Meflin as a Potential Marker for Mesenchymal Stromal Cells

Author

Maeda, Keiko, Enomoto, Atsushi, Hara, Akitoshi, Asai, Naoya, Kobayashi, Takeshi, Horinouchi, Asuka, Maruyama, Shoichi, Ishikawa, Yuichi, Nishiyama, Takahiro, Kiyoi, Hitoshi, Kato, Takuya, Ando, Kenju, Weng, Liang, Mii, Shinji, Asai, Masato, Mizutani, Yasuyuki, Watanabe, Osamu, Hirooka, Yoshiki, Goto, Hidemi, and Takahashi, Masahide

Published
2016
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14. Hierarchical nested wrinkles on silica-polymer hybrid films: stimuli-responsive micro periodic surface architectures.

Author

Tokudome Y, Suzuki K, Kitanaga T, and Takahashi M

Subjects
Acrylamides chemistry, Animals, Biosensing Techniques, Catalysis, Filtration, Gels, Humans, Humidity, Hydrophobic and Hydrophilic Interactions, Microscopy, Confocal, Nanostructures chemistry, Povidone chemistry, Silanes chemistry, Skin chemistry, Skin Aging, Surface Properties, Ultraviolet Rays, Biomimetic Materials chemistry, Polymers chemistry, Silicon Dioxide chemistry
Abstract

Stimuli-response on hierarchically-structured surface wrinkles is required for advanced filtration, catalysis and sensing applications. Although conventional processes can form hierarchical surface wrinkles, incorporation of stimuli-responsive features has not been achieved, limiting the potential multi-scale functionality of wrinkles. Here, we demonstrate a novel process that can fabricate stimuli-responsive surface hierarchical structures on silica-polymer hybrid films through precisely controlled UV-polymerization and sol-gel condensation. Starting from uniform hybrid films, UV excitation of the film surface triggers the formation of micrometre-scale wrinkles with dual periodicity. Hierarchical nested wrinkle (NW) structures with controllable periodic lengths at discrete size scales of < 10 µm and > 23 µm show a shape-memory effect with changes in the surrounding humidity. Moreover, the individual responses of wrinkles with different periodicities can be controlled independently. As a proof-of-concept application, we demonstrate that the NW structures are an active size-selective adsorption/release surface for micrometre-sized particles.

Published
2012
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