Self-expandable hydrogel biliary stent design utilizing the swelling property of poly(vinyl alcohol) hydrogel

• 資料種別: 文書・図像類
• タイトル: Self-expandable hydrogel biliary stent design utilizing the swelling property of poly(vinyl alcohol) hydrogel
• 著者・編者: Nagakawa, Yoshiyasu; Fujita, Satoshi; Yunoki, Shunji; Tsuchiya, Takayoshi; Suye, Shin-ichiro; Itoi, Takao
• 著者標目: Nagakawa, Yoshiyasu; Fujita, Satoshi; Yunoki, Shunji; Tsuchiya, Takayoshi; Suye, Shin-ichiro; Itoi, Takao
• 出版事項: John Wiley & Sons、Inc.
• 出版年月日等: 2020-07-20
• 出版年（W3CDTF）: 2020-07-20
• タイトル（掲載誌）: Journal of Applied Polymer SCIENCE
• 巻号年月日等（掲載誌）: 137 28
• 掲載巻: 137
• 掲載号: 28
• 本文の言語コード: eng
• 件名標目: biomedical applications; mechanical properties; swelling
• 対象利用者: 一般
• 一般注記: We have developed a novel self-expandable biliary stent comprising poly(vinyl alcohol) (PVA). The swelling ratio of thedried PVA hydrogels decreased from 6.7 to 2.6 as the saponification degree increased from 95 to 99.9, whereas the storage modulus andtear strength increased from 17 to 400 kPa and from 0.5 to 10 N mm−1, respectively. The dimensional ratios of the inner- and outerdiameter and the length of the dried tube-shaped hydrogels (saponification degree of 98.5) prepared by simple air drying isotropically increased 1.4–1.5 times in physiological saline. Meanwhile, the dimensional ratios of the dried hydrogels prepared by drying under extension increased by twice, whereas the length decreased slightly, indicating anisotropic swelling. The radial force of the reswollen tube-shaped hydrogels (6.6 ± 0.6 mN mm−2) was significantly higher than that of a conventional metallic stent (4.4 ± 0.3 mN mm−2), suggesting that PVA hydrogels were applicable as self-expandable stents.; source:https://onlinelibrary.wiley.com/doi/full/10.1002/app.48851
• オンライン閲覧公開範囲: 限定公開
• 著作権情報: Copyright(C)Wiley Periodicals, Inc
• 関連情報（DOI）: 10.1002/app.48851
• 連携機関・データベース: 国立情報学研究所 : 学術機関リポジトリデータベース（IRDB）（機関リポジトリ）; https://irdb.nii.ac.jp
• 提供元機関・データベース: 福井大学 : 福井大学学術機関リポジトリ