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Design of Biodegradable Adhesion Prevention

Research Project

Project/Area Number 06453221
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Biomedical engineering/Biological material science
Research InstitutionOsaka Prefecture University

Principal Investigator

HAYASHI Toshio  Osaka Prefecture University, Research Institute for Advanced Science and Technology, Professor, 先端科学研究所, 教授 (90026089)

Co-Investigator(Kenkyū-buntansha) IKADA Yoshito  Kyoto University Institute for Frontier Medical Science, Professor, 生体医療工学研究センター, 教授 (00025909)
Project Period (FY) 1994 – 1996
Project Status Completed (Fiscal Year 1996)
Budget Amount *help
¥5,800,000 (Direct Cost: ¥5,800,000)
Fiscal Year 1996: ¥1,300,000 (Direct Cost: ¥1,300,000)
Fiscal Year 1995: ¥1,900,000 (Direct Cost: ¥1,900,000)
Fiscal Year 1994: ¥2,600,000 (Direct Cost: ¥2,600,000)
KeywordsBiodegradable Materials / Adhesion Prevention / Natural Polymers / Synthetic Polypeptides / Natural Proteins / Polysaccharides / Hydrogels / Enzymatic Degradation
Research Abstract

The development of tissue adhesion prevention material has been long awaited in surgery. Tissue adhesion after surgery occasionally causes serious complications. Various studies have been undertaken to develop materials that prevent tissue adhesion. These function as a barrier to enable traumatized tissue to be separated from adjacent tissues during the healing process. These materials should be free from cellular adhesion, should be flexible and tough enough to provide for a tight cover over the traumatized soft tissues, and should be biodegradable and resorbable after the injured tissue is completely regenerated. To fully realize these requirements, natural polymers such as fiberous proteins or polysaccharides, which exist as highly water-adsorbable biomaterials filling interstices of tissues, have been considered to be best suited as basic materials. Synthetic polypeptides and their copolymers which carry hydrophilic components offer potential for enzymatic degradable medical applic … More ations.
We have prepared many types of hydrophilic polypeptide membranes which are composed of hydrophilic and hydrophobic amino acid components as models of natural fibrous proteins. These includes ; A-B-A type block copolymers consisting of a hydrophilic polypeptide as the A component and polyisoprene as the B component, copoly (N-hydroxyalkyl-D,L-glutamaine)s, two-component random copolypeptides consisting of N-hydroxyalkyl-L-glutamine and L-alanine, L-leucine, or L-valine, and three-component random copolypeptides consisting of N-hydroxyalkyl-L-glutamine, L-glutamic acid, and L-lysine. Hydrophilic membranes or hydrogels were prepared by using a crosslinking reaction with diamine on the starting membranes. It was commonly shown that the effective crosslink density was proportional to the molar % of diamine in the reaction mixture. The relation between their bulk structure and properties was investigated with regard to the swelling ratio in water, tensile properties, and enzymatic degradation behavior in a pseudo-extracellular fluid (PECF). The tensile properties of the hydrophilic membranes were highly dependent on the swelling ratio in PECF,and on the hydrophobic portions in molecular chains, whose behavior was typical of an elastomer. Biodegradations of these membranes in viro by a protease indicated that the degradation took place in bulk rather than on a surface, and that the rate of degradation was also highly dependent on the swelling ratio of membranes, the hydrophobicity, effective charge density, as well as D,L-comonomer composition, of the side chains of samples. Less

Report

(4 results)
  • 1996 Annual Research Report   Final Research Report Summary
  • 1995 Annual Research Report
  • 1994 Annual Research Report
  • Research Products

    (32 results)

All Other

All Publications (32 results)

  • [Publications] T.Hayashi,E.Nakanishi,Y.Iizuka,M.Oya,and M.Iwatsuki: "Biodegradation of Copoly(N-hydroxy-D,L-glutamine)in vitro," Eur.Polym.J.30(9). 1065-1069 (1994)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] T.Hayashi,E.Nakanishi,Y.Iizuka,M.Oya,and M.Iwatsuki: "Preparation and Properties of Copoly(N-Hydroxyalkyl-D,L-glutamine)Membranes," Eur.Polym.J.(in press). (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] R.Yoda,Y.Hirokawa,and T.Hayashi: "Synthesis and Molecular characterizaion of A-B-A Type Block Copolymer Consisting of Poly(γ-benzyl-L-glutamate)as the A Component and Polyisoprene as the B Component" Eur.Polym.J.30(12). 1397-1401 (1994)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] I.Fuke,T.Hayashi,Y.Tabata,and Y.Ikada: "Synthesis of Poly(ethylene glycol)Derivatives with Different Branching and Their Use for Protein Modification" J.Control Release. 30. 27-34 (1994)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] R.Yoda,S.Komatsuzaki,T.Hayashi,and H.Kawaguchi: "Preparation and Properties of A-B-A-Type Block Copolymer Membranes Consisting of Poly(N-hydroxy-alkyl-L-glutamine)as the A Component and Polyisoprene as the B Component" Biomaterials. 15(11). 944-949 (1994)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] Itoyama,S.Tokura,and T.Hayashi: "Lipoprotein Lipase Immobilization onto Porous Chitosan Beads" Biotech Progress. 10(2). 225-229 (1994)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] Toshio Hayashi: "Biodegradable Polymers for Biomedical Uses in 「Progress in Polymer Science」" Pergamon Pub., 40 (1994)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] 林 壽郎: "生体分解吸収性材料の最近の進歩(分担執筆)「人工臓器 1994-1995」" 中山書店, 6 (1994)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] Y. Miyachi, K. Jokei, M. Oka, and T. Hayashi: ""Enzymatic Hydrolysis of Copoly (N-hydroxypropyl L-glutamine/L-leucine) Hydrogels in vitro"" J. Biomaterial Science-Polymer Ed.7・9. 805-816 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] R. Yoda, S. Komatsuzaki, and T. Hayashi: ""Membrane Properties of A-B-A Type Block Copolymer Consisting of Poly (γ-benzyl-L-glutamateas the A Component and Polyisoprene as the B Component"" European Polymer Journal. 32・2. 233-237 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] Y. Yoshida, K. Makino, T. Ito, Y. Yamakawa, and T. Hayashi: ""Physical and Biodegradation Properties of A-B-A Block Copolymer Membranes Consisting of Poly (N-hydroxyalkyl-L-glutamine) [A] and Polybutadiene [B]"21GC03:European Polmer Journal" 32・7. 877-881 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] Y. Hirano, K. Madenokoji, A. Nakajima, M. Oka, T. Hayashi: ""Synthesis and Evaluation of Cell-attachment Activity of RGDS-related Molecules"" Trans. Mater. Res. Soc. , Japan. 20. 9-12 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] 浄慶一之、高岸 徹、岡 勝仁、林 壽郎: "生分解性荷電ポリペプチド膜の分子設計" 生体材料. 14・1. 6-12 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] 森川訓行、林 壽郎、筏 義人: "グルコースセンサーの in vitro 安定性" 生体材料. 14・4. 211-215 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] T. Hayashi, M. Oka, and Y. Miyachi: "Biomedical Functions and Biotechnology of Natural and Artificial Polymers" ATL Press, 12 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] 林 壽郎(分担執筆): "「軟組織用粘着剤」in「接着ハンドブック第3版」" 日刊工業新聞社, 4 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] T.Hayashi,E.Nakanishi,Y.Iizuka,M.Oya,and M.Iwatsuki,: "^・Preparation and Properties of Copoly(N-hydroxyalkyl-D,L-glutamine)Membranes^・" European Polymer Journal. 31(5). 453-458 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] R.Yoda,S.Komatsuzaki,E.Nakanishi,and T.Hayashi,: "^・Microheterophase Structure of A-B-A Type Block Copolymer Consisting of Poly(γ-benzyl-L-glutamate)as the A Component and Polyisoprene as the B Component^・" European Polymer Journal. 31(4). 335-339 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] R.Yoda,S.Komatsuzaki,and T.Hayashi,: "^・Surface Properties and Biocompatibility of A-B-A Type Block Copolymer Membranes Consisting of PBLG as the A Component and Polyisoprene as the B Component^・" Biomaterials,. 16. 1203-1209 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] R.Yoda,S.Komatsuzaki,and T.Hayashi: "^・Membrane Properties of A-B-A Block Copolymer Membranes Consisting of Poly(γ-benzyl-L-glutamate)as the A Component and Polyisoprene as the B Component^・" European Polymer Journal. 32(2). 233-237 (1996)

    • Related Report
      1995 Annual Research Report
  • [Publications] 浄慶、高岸、岡、林: "生分解性荷電ポリペプチド膜の分子設計" 生体材料. 14(1). 6-12 (1996)

    • Related Report
      1995 Annual Research Report
  • [Publications] Y.Miyachi,K.Jokei,M.Oka and T.Hayashi: "^・Enzymatic Hydrolysis of Copoly(N-hydroxypropyl-L-glutamine/L-leucine)Hydrogels in vitro^・" J.Biomaterials Science-Polymer Ed.8(In Press). (1996)

    • Related Report
      1995 Annual Research Report
  • [Publications] 林壽郎(分担執筆): "医療分野への応用、総論 「生分解性プラスチックハンドブック」" エヌ・ティー・エス, 15 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] TOSHIO HAYASHI(分担執筆): "^・Poly(α-amino acid)^・ and ^・Enzyme Immobilization^・ in 「Polymeric Materials Encyclopedia」" CRC Press,Inc., 12 (1996)

    • Related Report
      1995 Annual Research Report
  • [Publications] T.Hayashi,E.Nakanishi,Y.Iizaka,M.Oya and M.Iwatsuki: "Biodegradation of Copoly (N-hydroxy-D,L-glutamine) in vitro," Eur.Polym.J.30(9). 1065-1069 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] T.Hayashi,E.Nakanishi,Y.Iizaka,M.Oya and M.Iwatsuki: "Preparation and Properties of Copoly(N-hydrozyalkyl-D,L-glutamine)Membranes." Eur.Polym.J.(in press). (1995)

    • Related Report
      1994 Annual Research Report
  • [Publications] R.Yoda,Y.Hirokawa and T.Hayashi: "Synthesis and Molecular Characterization of A-B-A Type Block Copolymer Consisting of Poly(γ-benzyl-L-glutamate) as the A Component and Polyisoprene as the B Component" Eur.Polym.J.30(12). 1397-1401 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] I.Fuke,T.Hayashi,Y.Tabata,and Y.Ikada: "Synthesis of Poly(enthylene glycol)Derivatives with Different Branching and Their Use for Protein Modification" J.Control Release. 30. 27-34 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] R.Yoda,S.Komatsuzaki,T.Hayashi,and H.Kawaguchi: "Preparation and Propreties of A-B-A Type Block Copolymer Membranes Consisting of Poly (N-hydroxy-alkyl-L-glutamine) as the A Component and Polyisoprene as the B Component" Biomaterials. 15(11). 944-949 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] K.Itoyama,S.Tokura,and T.Hayashi: "Lipoprotein Lipase Immobilization onto Porous Chitosan Beads" Biotech.Progress. 10(2). 225-229 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] Toshio Hayashi: "Biodegradable Polymers for Biomedical Uses in 「Progress in Polymer Science」" Pergamon Pub., 40 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] 林 壽郎: "生体分解吸収性材料の最近の進歩(分担執筆) 「人工臓器1994-1995」" 中山書店, 6 (1994)

    • Related Report
      1994 Annual Research Report

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Published: 1994-04-01   Modified: 2016-04-21  

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