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超高圧電子顕微鏡を用いた生体膜の三次元超微構造に関する研究

Research Project

Project/Area Number 15659432
Research Category

Grant-in-Aid for Exploratory Research

Allocation TypeSingle-year Grants
Research Field Morphological basic dentistry
Research InstitutionHokkaido University

Principal Investigator

脇田 稔  北海道大学, 大学院・歯学研究科, 教授 (40018916)

Co-Investigator(Kenkyū-buntansha) 山本 恒之  北海道大学, 大学院・歯学研究科, 助教授 (80200822)
土門 卓文  北海道大学, 大学院・歯学研究科, 助教授 (50217618)
高橋 茂  北海道大学, 大学院・歯学研究科, 助手 (70241338)
柴山 環樹  北海道大学, エネルギー変換マテリアル研究センター, 助教授 (10241564)
高橋 平七郎  北海道大学, エネルギー先端工学研究センター, 教授 (80001337)
Project Period (FY) 2003 – 2005
Project Status Completed (Fiscal Year 2005)
Budget Amount *help
¥3,000,000 (Direct Cost: ¥3,000,000)
Fiscal Year 2005: ¥600,000 (Direct Cost: ¥600,000)
Fiscal Year 2004: ¥900,000 (Direct Cost: ¥900,000)
Fiscal Year 2003: ¥1,500,000 (Direct Cost: ¥1,500,000)
Keywords硬組織 / 結晶生成 / 電子顕微鏡 / 三次元構築 / 結晶成長 / 生体膜 / 超微構造 / 分子構造
Research Abstract

本年度は、昨年に続いて、クライオミクロトームの利用がほとんど不可能なことが明らかになったので、代替手段として、化学的固定による方法を資料作成のために応用することを引き続き試みた。標本を脱樹脂により観察するという本研究の特徴を実現するために、試料は全て、メタアクリレート樹脂あるいはブチルーメチルメタアクリレート樹脂に包埋した。アクリル樹脂モノマーは揮発性が高く、通常の方法では、重合作業中に蒸発するという致命的な欠陥があるので、今回は、半重合樹脂にモノマーの浸透が終了した試料を報マイすることをこころみた。試料は従来の透過電顕用試料より大きく、特に走査電顕用試料はかなり大きいので、通常の揮発性樹脂の包埋に使われる蓋付きポリエチレンカプセルでは不便なので、脱水や樹脂浸透に用いるガラス製試料ビンに包埋する方法によって包埋した。この方法は便か一度しか使えないと言う欠点があるが、アクリレート樹脂のような揮発性の強い包埋材の場合祐子菜穂右方と考えられる。ただし、この場合、試料は重合前のモノマーの中で沈むので、前年度と同様、重合樹脂ブロックの中程に試料が来るようにするために、試料ビンに1cmほどのモノマーを入れて重合した後、樹脂浸透の終了した試料を置き、静かに触媒入りモノマーを1cm〜1.5cmそそぎ入れ、蓋をして重合した。重合完了後、ガラスビンを割って重合試料ブロックを取り出す。ただし、半重合樹脂では、空気の混入が生じることが多く、重合中に樹脂そのものが発泡するという重大な欠点があり、あらかじめ、十分に脱気する必要があることがわかった。
このブロックから試料を任意の方向から切り出すことが可能であるが、大きな切片の切り出しは極めて困難で、期間中に十分な成果を挙げることができなかった。
共同研究者の教室では、超高圧電子顕微鏡による表面触媒の解析に関する業績が得られた。

Report

(3 results)
  • 2005 Annual Research Report
  • 2004 Annual Research Report
  • 2003 Annual Research Report
  • Research Products

    (23 results)

All 2005 2004 Other

All Journal Article (12 results) Book (2 results) Publications (9 results)

  • [Journal Article] Determination of two different types of cellular cementogenesis in rat molars : A histological and immunohistochemical study2005

    • Author(s)
      Yamamoto T, Domon T, Takahashi S, Arambawatta AKS, Anjuman KAY, Fukushima C, Wakita M
    • Journal Title

      Matrix Biology, 24

      Pages: 295-305

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Active participation of apoptosis and mitosis in sublingual gland regeneration of the rat foolowing release from duct ligation.2005

    • Author(s)
      Takahashi S, Nakamura S, Domon T, Yamamoto T, Wakita M.
    • Journal Title

      J Molecular Histology 36

      Pages: 199-205

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Immunohistochemical characterization of noncollagenous matrix molecules on the alveolar bone surface at the initial rincipal fiber attachment in rat molars.2005

    • Author(s)
      Arambawatta AKS, Yamamoto T, Wakita M.
    • Journal Title

      Ann Anat. 187

      Pages: 77-87

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Electron Microscopy of La_<0.7>Ca_<0.3>MnO_32005

    • Author(s)
      Arita, M., Hamada, K., Okada, A., Asano, H., Matsui, M, Shibayama.T.
    • Journal Title

      Jpn.J.of Applied Physics, 44

      Pages: 304-308

    • NAID

      10014322530

    • Related Report
      2005 Annual Research Report
  • [Journal Article] "Synthesis of Metal-Cadmium Sulfide Nanocomposites Using Jingle-Bell-Shaped Core-Shell Photocatalyst Particles2005

    • Author(s)
      Pal, B., Torimoto, T., Iwasaki, K., Shibayama, T., Takahashi, H., Ohtani, B., Takahashi
    • Journal Title

      J.Appl.Electrochem., 35

      Pages: 751-756

    • NAID

      120000958308

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Photocatalytic Preparation of Encapsulated Gold Nanoparticles by Jingle-Bell-Shaped Cadmium Sulfide-Silica Nanoparticles2005

    • Author(s)
      Pal, B., Torimoto, T., Ikeda, S., Shibayama, T., Sugawara K., Takahashi, H., Ohtani, B
    • Journal Title

      Top.Catal 35

      Pages: 321-325

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Odontoclasts in the Chinook salmon differ from mammalian odontoclasts by exhibiting a great proportion of cells with high nuclei number.2004

    • Author(s)
      Domon T, Fukui A, Taniguchi Y, Suzuki R, Takahashi S, Yamamoto T, Wakita M.
    • Journal Title

      Anat Embryol 209

      Pages: 119-128

    • NAID

      120002451630

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Prenatal development of the palatine gland of rats.2004

    • Author(s)
      Shinzato K, Takahashi S, Wakita M, Morita M.
    • Journal Title

      Tissue Cell 36

      Pages: 115-120

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Cell death and cell proliferation in the regeneration of atrophied rat submandibular glands after duct ligation.2004

    • Author(s)
      Takahashi S, Shinzato K, Nakamura S, Domon T, Yamamoto T, Wakita M
    • Journal Title

      J Oral Pathol Med 33

      Pages: 23-29

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Size and Structure-Dependent Photocatalytic Activity of Jingle-Bell-Shaped Silica-Coated Cadmium Sulfide Nanoparticles2004

    • Author(s)
      Bonamali Pal, Torimoto, T., Iwasaki, K., Shibayama, T.Takahaashi, T, Ohtani, B.
    • Journal Title

      J.Phys.Chem.B 108

      Pages: 18670-18674

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Effect of microstructure on oxidation resistance of MoSi2 fabricated by spark plasma sintering2004

    • Author(s)
      Kuchino, J., Kurokawa, K., Shibayama, T., Takahashi.H.
    • Journal Title

      Vacuum 73

      Pages: 623-628

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Immunolocalization of proteoglycans and bone-related noncollagenous glycoproteins in developing acellular cementum of rat molars.2004

    • Author(s)
      Yamamoto T, Domon T, Takahashi S, Arambawatta AKS, Wakita M
    • Journal Title

      Cell Tissue Res 317

      Pages: 299-312

    • Related Report
      2004 Annual Research Report
  • [Book] New Electron Microscopy to Materials Science for Energy Related Issues, 179-190(Introduction to the Advanced Nuclear Energy Technology in Fusion, Fuels and Materials)(S.Konishi, Y.Tmamoto, A.Kimura, M.S.Yang, B.G.Hong and J.W.Lee)2005

    • Author(s)
      Tamaki Shibaayama
    • Total Pages
      501
    • Publisher
      Atomic Energy Society of Japan
    • Related Report
      2005 Annual Research Report
  • [Book] パイロットアトラス「標本で学ぶ口腔の発生と組織」(脇田 稔, 栗栖浩二郎, 前田健康(編著))2004

    • Author(s)
      脇田 稔
    • Total Pages
      209
    • Related Report
      2004 Annual Research Report
  • [Publications] Suzuki R, Domon T, Wakita M, Akisaka T: "The reaction of osteoclasts when releasing osteocytes from osteocytic lacunae in the bone during bone modeling"Tissue Cell. 35. 189-197 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] Tahakashi S, Shinzato K, Domon T, Yamamoto T, Wakita M: "Proloferation and distribution of myoepithelial cells during atrophy of the rat submandibular gland."J Oral Pathol Med. 32. 90-94 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] Fukui A, Domon T, Oguchi H, Wakita M: "Ultrastructural study of osteoclasts : Morphological features and the distribution of nucleus numbers of osteoclasts in Xenopus laevis."Hokkaido J Dent Sci. 24. 178-189 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] Oonishi Y, Domon T, Iida J, Wakita M: "Reaction of bone tissue of the rat calvaria during modeling in response to mechanical loading."Hokkaido J Dent Sci. 24. 190-202 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] Tahakashi S, Shinzato K, Nakamura S, Domon T, Yamamoto T, Wakita M: "Cell death and cell proliferation in the regeneration of atrophied rat submandibular glands after duct ligation. rat"J Oral Pathol Med. 32. 23-29 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] Shinzato K, Takahashi S, Wakita M, Morita M: "Prenatal development of the palatine gland of rats."Tissue Cel. 36. 115-120 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] Shibayama, T., Yoshida, Y., Yano, Y., Takahashi, H.: "Creep deformation of grain boundary in a highly crystalline SiC fiber"Journal of Electron Microscopy. 52. 75-78 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] Torimoto, T., Reyes, J., Iwasaki, K., Pal, B., Shibayama, T., Sugawara: "Preparation of Novel Silica-Cadmium Sulfide Composite Nanoparticles Having Adjustable Void Space by Size-Selective Photoetching"JACS. 125. 316-317 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] Y.Sueishi, N.Sakaguchi, T.Shibayama, H.Kinoshita, H.Takahashi: "Radiation-induced segregation and precipitation behaviors around cascade clusters under electron irradiation"Journal of Electron Microscopy. 52. 63-68 (2003)

    • Related Report
      2003 Annual Research Report

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Published: 2003-04-01   Modified: 2016-04-21  

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