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Koshikawa, Hiroshi; Yamaki, Tetsuya; Takahashi, Shuichi; Hasegawa, Shin; Asano, Masaharu; Maekawa, Yasunari
no journal, ,
Poly(vinylidene fluoride) thin films irradiated with four kinds of ion beams were exposed to a 9 M KOH aqueous solution after their storage in air for 30 or 90 days at different temperatures. According to the conductometry, the heating at 120
C was found to enhance the etch rate in the latent track without changing that in the bulk, thereby enabling us to obtain very high etching sensitivity for the preparation of nano-sized through-pores. The formation of hydroperoxides during this pretreatment should facilitate the introduction of the etching agent to improve etchability. Additionally, the irradiation of higher-LET ions, causing each track to more activated sites (like radicals), was preferable to achieve high sensitivity of the etching.
Sato, Shinichiro; Oshima, Takeshi; Miyamoto, Haruki; Kawano, Katsuyasu*; Imaizumi, Mitsuru*; Shimazaki, Kazunori*; Morioka, Chiharu*
no journal, ,
no abstracts in English
Miyamoto, Haruki; Sato, Shinichiro; Oshima, Takeshi; Imaizumi, Mitsuru*; Morioka, Chiharu*; Kawano, Katsuyasu*
no journal, ,
no abstracts in English
Go, Yasuhiro*; Matsuura, Hirotaka*; Jo, Akinori*; Katakai, Akio; Tamada, Masao
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no abstracts in English
Kimura, Atsushi; Taguchi, Mitsumasa; Otani, Yoshimi*; Hirota, Koichi
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no abstracts in English
Kimura, Yosuke*; Katakai, Ryoichi*; Asano, Masaharu; Chen, J.; Maekawa, Yasunari; Yoshida, Masaru
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no abstracts in English
Mizote, Norihito*; Katakai, Akio; Tamada, Masao
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no abstracts in English
Seito, Hajime; Kojima, Takuji; Kaneko, Hirohisa; Haneda, Noriyuki; Haruyama, Yasuyuki; Kanazawa, Takao
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no abstracts in English
Hakoda, Teruyuki; Shimada, Akihiko; Hirota, Koichi
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no abstracts in English
Hase, Yoshihiro
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no abstracts in English
Chen, J.; Asano, Masaharu; Yoshida, Masaru; Maekawa, Yasunari
no journal, ,
Novel one step preparation of polymer electrolyte membranes without a membrane casting process is achieved by radiation crosslinking of a polyetheretherketone film to prevent dissolution and deformation of the original film in sulfonating solutions. The films crosslinked can be effectively sulfonated, resulting in a crosslinked and sulfonated electrolyte membrane with high proton conductivity comparable to Nafion. The heat-treatment was effective for further crosslinking of the membrane; as a result, the water uptake drastically decreased, compensating for a slight decrease of proton conductivity. In addition, the double crosslinked sPEEK electrolyte membrane exhibited mechanical and thermal properties superior to those of Nafion.
-irradiation techniqueHiroki, Akihiro; Pham, H. T. T.*; Nagasawa, Naotsugu; Tamada, Masao
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no abstracts in English
and radiation effectsSakashita, Tetsuya; Suzuki, Michiyo; Hamada, Nobuyuki*; Ikeda, Daisuke*; Yanase, Sumino*; Ishii, Naoaki*; Kobayashi, Yasuhiko
no journal, ,
We studied the effects of -irradiation on the salt chemotaxis learning of , that is well known as a model organism for the nervous system. As a result, we found that chemotaxis to NaCl immediately after irradiation was significantly decreased only during the salt chemotaxis learning. In addition, the radiation-induced resoponse is significantly suppressed in the 
mutant. These results suggested that the effects of ionizing radiation on the salt chemotaxis learning behavior of mediated through GPC-1 localized in the specific sensory neurons.
-carrageenan derivative for radiation crosslinkingNagasawa, Naotsugu; Aranilla, C. T.*; Dela Rosa, A. M.*; Tamada, Masao
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no abstracts in English
Nagasawa, Naotsugu; Takigami, Machiko*; Amada, Haruyo*; Hiroki, Akihiro; Kasai, Noboru; Yagi, Toshiaki*; Yoshii, Fumio; Tamada, Masao
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no abstracts in English
Sora, Sakura; Hamada, Nobuyuki*; Kataoka, Keiko*; Kobayashi, Yasuhiko; Sakashita, Tetsuya; Funayama, Tomoo
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Kataoka, Keiko*; Hamada, Nobuyuki*; Sora, Sakura; Kobayashi, Yasuhiko; Sakashita, Tetsuya; Funayama, Tomoo
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Cu and applications to 
imaging in a plantWatanabe, Shigeki; Ishioka, Noriko; Suzui, Nobuo; Kawachi, Naoki; Ishii, Satomi; Matsuhashi, Shimpei; Katabuchi, Tatsuya*
no journal, ,
no abstracts in English