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2006 Fiscal Year Final Research Report Summary

Development of biodegradable polymers that can recognize microorganisms

Research Project

Project/Area Number 16510068
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Environmental technology/Environmental materials
Research InstitutionKanazawa Institute of Technology

Principal Investigator

OSAWA Satoshi  Kanazawa Institute of Technology, College of Environmental Engineering and Architecture, Professor, 環境・建築学部, 教授 (50259636)

Project Period (FY) 2004 – 2006
KeywordsBiodegradable polymer / Poly(butylenesuccinate-adipate) / Poly(ε-caprolactone) / Antibacterial property / Surface treatment / super-hydrophobic / 抗菌性
Research Abstract

The goal on this research is to prepare biodegradable polymer that have ability of recognition for microorganisms. For the purpose, we have prepared various microscopic patterns with different size on the surface of biodegradable polymers. It was fond that the polymer surface recognized fungi by controlling the micro-scale size of porous structure and regularly aligned concavity and convexity structures.
Smooth biodegradable polymer surface did not adsorb any type of fungi. On the other hand, fungi was strongly adsorbed to the concavity and convexity structure with the cross pitch of 30μm x 30μm. Producing the water repellent surface onto biodegradable polymer must result in some new functions. The antibacterial property may also be obtained by the water repellency on the biodegradable polymer surface. Among water repellent natural leaves, we have chosen a structure of aroid leaf for preparing super-hydrophobic surface on biodegradable sheet since it has high water contact angle and the concavity-pattern is thought to be enough handle for a material use. Transcribing aroid structure gave 30μm ordered concavity-pattern on biodegradable polymer surface and the solvent treatment resulted in sub-micrometer ordered roughness.
The water repellent natural leaves usually have antibacterial property due to the prevention of water. To investigate the antibacterial property, the transcribed biodegradable samples were soaked into fungus culture having isolated Asperugillus sp and E.coli. The filamentous fungus and bacteria did not grow on the transcribed surface with solvent treatment. The results suggested that combination of two ordered structures, i.e. several micrometer and sub-micrometer patterns recognize microorganisms.

  • Research Products

    (10 results)

All 2007 2006 2005 2004

All Journal Article (10 results)

  • [Journal Article] Isolation of microorganisms which preferentially degrade crystal and amorphous region of poly(e-caprolactone) and their biodegradability2007

    • Author(s)
      N.Kitamura, S.Osawa
    • Journal Title

      Material Technology 25(in Press)

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Biodegradation of poly (ε-caprolactone) film in presence of strain 70038 and characterization of the degraded Film2007

    • Author(s)
      S.xu, T.Yamaguchi, S.Osawa, S.Suye
    • Journal Title

      Boicontrol Science 12(in Press)

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Isolation of microorganisms which preferentially degrade crystal and amorphous region of poly(e-caprolactone) and their biodegradability2007

    • Author(s)
      N.Kitamura, S.Osawa
    • Journal Title

      Material Technology Vol.25(in press)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Biodegradation of Polr (ε-caprolactone)film in presence of strain 70038 and characterization of the degraded Film2007

    • Author(s)
      S.xu, T.Yamaguchi, S.Osawa, S.Suye
    • Journal Title

      Biocontrol Science Vol.12(in press)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Preparation of super-hydrophobic surface on biodegradable polymer by transcribing microscopic pattern of water-repellent leaf2006

    • Author(s)
      S.Osawa, M.Yabe, M.Miyamura, K.Mizuno
    • Journal Title

      Polymer 47

      Pages: 3711-3714

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Preparation of super-hydrophobic surface on biodegradable polymer by transcribing microscopic pattern of water-repellent leaf2006

    • Author(s)
      S.Osawa, M.Yabe, M.Miyamura, K.Mizuno
    • Journal Title

      Polymer Vol.47

      Pages: 3711-3714

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Relation between degradation behavior of Poly(ε-caprolactone and microorganisms in composting system2005

    • Author(s)
      S.Osawa, N.Kitamura, S.uye
    • Journal Title

      Kobunshironbunsyu 61

      Pages: 97-103

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Relation between degradation behavior of Poly(e-caprolactone and microorganisms in composting system2005

    • Author(s)
      S.Osawa, N.Kitamura, S.Shinitiro
    • Journal Title

      Kobunshironbunsyu Vol.61

      Pages: 97-103

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Relation between degradation behavior of Poly(ε-caprolactone and microorganisms in composting system2004

    • Author(s)
      S.Osawa, K.mizuno, T.Ogawa
    • Journal Title

      Material Technology 22

      Pages: 57-64

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Effects of acid, bace and enzyme on the decomposition of poly(L-lactic acid)2004

    • Author(s)
      S.Osawa, K.mizuno, T.Ogawa
    • Journal Title

      Material Technology Vol.22, No.2

      Pages: 57-64

    • Description
      「研究成果報告書概要(欧文)」より

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Published: 2008-05-27  

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