JaLCDOI 10.18926/14136
フルテキストURL Mem_Fac_Eng_39_1_16.pdf
著者 内田 哲也| 石丸 早苗| 島村 薫| 宇治 章人| 松尾 俊彦| 大月 洋|
抄録 PE film was treated with fuming nitric acid at 80℃ for 20 min, resulting in introduction of COOH moieties on the film surface. The COOH’s were reacted with ethylenediamine, whose amino groups were used for linking with (2-[4-(dibutylamino)phenyl]ethenyl)-3-carboxy-methylbenzo-thiazolium, photoelectric dye (NK-5962), which absorbs visible light and converts the photon energy to electric potentials. The dye molecules were immobilized on the PE film surface and they were able to stimulate chick retinal tissues on incidence of visible light. These facts hopefully lead to development of an artificial retinal prosthesis.
出版物タイトル Memoirs of the Faculty of Engineering, Okayama University
発行日 2005-01
39巻
1号
開始ページ 16
終了ページ 20
ISSN 0475-0071
言語 English
論文のバージョン publisher
NAID 120002308066
JaLCDOI 10.18926/15350
フルテキストURL Mem_Fac_Eng_OU_35_29.pdf
著者 島村 薫| Munesawa Yuhji| 内田 哲也|
抄録 Poly (ethylene-block-vinyl alcohol), which consisted of both hydrophobic and hydrophilic blocks, was prepared by using polyethylene single crystals as starting material. Polyethylene single crystals reacted with fuming nitric acid resulting in long methylene chains with functional groups such as COOH and NO(2) at the ends (the chain length were almost same as the lamellar thickness of polyethylene single crystal). The functionalized methylene chains were allowed to react with 4-aminostyrene to give corresponding amides, i.e., methylene chains with vinyl groups at the ends (macromer). The macromers were extended by block-copolymerization with vinyl acetate, then saponified resulting in PE/PVA block co-polymer. The block copolymer was molded into sheets which were subsequently heat-treated in contact with hydrophilic or hydrophobic media. Depending on the media, the sheet surface changed at high temperature reversibly from hydrophilic to hydrophobic and vice versa. The surface property was fixed by quenching because both blocks were able to crystallize. Thus the surface of this material can be tailored for various purposes at high temperature, and then used in stable at room temperature.
出版物タイトル Memoirs of the Faculty of Engineering, Okayama University
発行日 2001-03-27
35巻
1-2号
開始ページ 29
終了ページ 34
ISSN 0475-0071
言語 English
論文のバージョン publisher
NAID 120002307155
JaLCDOI 10.18926/15352
フルテキストURL Mem_Fac_Eng_OU_35_35.pdf
著者 島村 薫| 内田 哲也| 井上 智博|
抄録 Rigid polymer, poly(p-phenylene benzobisthiazole), formed lamellar crystals where the molecular chains were oriented perpendicular to the lamellae. It was supposed that, because of wide distribution in the chain length, the lamellar surface bristled with the chain cilia among which many voids were included. Crystallographically, this region afforded us a transitional structure from full to deficient packings of chains. The structure was analyzed using the scanning probe microscope. In the course the method for imaging one molecular chain end was developed. From the images it was concluded that an isolated long cilius did not move so violently at room temperature.
出版物タイトル Memoirs of the Faculty of Engineering, Okayama University
発行日 2001-03-27
35巻
1-2号
開始ページ 35
終了ページ 40
ISSN 0475-0071
言語 English
論文のバージョン publisher
NAID 120002307784
JaLCDOI 10.18926/19622
フルテキストURL Mem_Fac_Eng_OU_31_1_5.pdf
著者 島村 薫| Zhang Chunxiao| 内田 哲也|
抄録 Rigid polymer poly(p-phenylene benzobisthiazole) was crystallized from dilute solution. Electron microscopy showed that upon quenching, flat fibrils with several nm thick were produced. Subsequent heat treatment in solvent changed the fibril into "shish-kebab". On the other hand, by isothermal crystallization, an aggregate of parallel rod-like crystals was obtained. The molecular chains were accommodated normal to the rod. Based on the observation of crystal morphology, the isothermal crystallization mechanism was proposed. Because of regidity of polymer chains and wide distribution of the molecular length, the chain ends were inevitably included within the crystals resulting in crystal defects such as axial shift, lattice curvature and edge dislocation which were directly observed by lattice imaging.
出版物タイトル Memoirs of the Faculty of Engineering, Okayama University
発行日 1996-12-27
31巻
1号
開始ページ 5
終了ページ 10
ISSN 0475-0071
言語 English
論文のバージョン publisher
NAID 120002309167
JaLCDOI 10.18926/19624
フルテキストURL Mem_Fac_Eng_OU_31_1_11.pdf
著者 Zhang Chunxiao| Tanigawa Satoshi| 内田 哲也| 島村 薫|
抄録 Poly[(benzo[1,2-d:5,4-d']bissthiazole-2,6-diyl)-1,4-phenylene](cis-PBZT)with a relatively high molecular weight was prepared by a new synthesis route. Properties of the synthesized polymer, such as thermostability, liquid crystallinity etc. were investigated and compared with those of trans-PBZT. cis-PBZT was crystallized from dilute solution and the electron microscopy showed that the precipitate was a rod-like crystal similar to that of trans form. In spite of rigid nature of the back bone, cis-PBZT showed poor crystallinity.
出版物タイトル Memoirs of the Faculty of Engineering, Okayama University
発行日 1996-12-27
31巻
1号
開始ページ 11
終了ページ 17
ISSN 0475-0071
言語 English
論文のバージョン publisher
NAID 120002309203
タイトル(別表記) Investigator (doctor)-initiated clinical trial of photoelectric dye-coupled thin film (Okayama University-type) retinal prosthesis
フルテキストURL 127_223.pdf
著者 松尾 俊彦| 内田 哲也|
キーワード 人工網膜 OUReP 医師主導治験 色素結合薄膜 網膜色素変性
出版物タイトル 岡山医学会雑誌
発行日 2015-12-01
127巻
3号
開始ページ 223
終了ページ 229
ISSN 0030-1558
関連URL isVersionOf https://doi.org/10.4044/joma.127.223
言語 Japanese
著作権者 Copyright (c) 2015 岡山医学会
論文のバージョン publisher
DOI 10.4044/joma.127.223
NAID 130005116816
著者 内田 哲也|
発行日 2002-09-30
出版物タイトル
資料タイプ 学位論文
著者 Alamusi| Matsuo, Toshihiko| Hosoya, Osamu| Tsutsui, Kimiko M.| Uchida, Tetsuya|
発行日 2013-09
出版物タイトル Journal of Artificial Organs
16巻
3号
資料タイプ 学術雑誌論文
著者 Kawata, Tetsuhiro| Matsuo, Toshihiko| Uchida, Tetsuya|
発行日 2014-06-25
出版物タイトル SpringerPlus
3巻
資料タイプ 学術雑誌論文
フルテキストURL Heliyon_5_6_01936.pdf
著者 Matsuo, Toshihiko| Uchida, Tetsuya| Yamashita, Koichiro| Takei, Shigiko| Ido, Daisuke| Fujiwara, Atsushi| Iino, Masahiko| Oguchi, Masao|
キーワード Bioengineering Neuroscience Physiology Zoology
発行日 2019-06-30
出版物タイトル Heliyon
5巻
6号
出版者 Elsevier Science
開始ページ e01936
ISSN 24058440
資料タイプ 学術雑誌論文
言語 English
OAI-PMH Set 岡山大学
著作権者 © 2019 The Authors.
論文のバージョン publisher
PubMed ID 31294104
DOI 10.1016/j.heliyon.2019.e01936
Web of Science KeyUT 000473818300195
関連URL isVersionOf https://doi.org/10.1016/j.heliyon.2019.e01936