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Theoretical research on the static and dynamic structure of lipid membranes

Research Project

Project/Area Number 10640372
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field 物性一般(含基礎論)
Research InstitutionSaga Medical School

Principal Investigator

SUEZAKI Yukio  Saga Medical School, Department of General Education, Professor, 医学部, 教授 (80069484)

Co-Investigator(Kenkyū-buntansha) ICHINOSE Hiroyuki  Saga Medical School, Department of General Education, Assistant, 医学部, 教務員 (10232406)
TAKEFU Masasuke  Saga Medical School, Department of General Education, Professor, 医学部, 教授 (30207005)
Project Period (FY) 1998 – 2001
Project Status Completed (Fiscal Year 2001)
Budget Amount *help
¥2,800,000 (Direct Cost: ¥2,800,000)
Fiscal Year 2001: ¥500,000 (Direct Cost: ¥500,000)
Fiscal Year 2000: ¥500,000 (Direct Cost: ¥500,000)
Fiscal Year 1999: ¥500,000 (Direct Cost: ¥500,000)
Fiscal Year 1998: ¥1,300,000 (Direct Cost: ¥1,300,000)
Keywordslipid bilayer membrane / Langmuir monolayer / shape change / bending modulus / electrostatic interaction / line tension / adsorption / anesthetic / 脂肪2分子膜 / タリン / 統計力学 / 曲げ弾性エネルギー / 蛋白質分子 / ベシクル / 形体変化 / 静電斥力 / ラインテンション / 球状2分子膜ベシクル / 曲げ弾性 / コーヒーカップ状ベシクル / 形状転移 / ナノクラスター / 静電付力相互作用 / 球状ベシクル / カップ型ベシクル
Research Abstract

We have received the grant in aide from the Ministry of Education, Culture, Sports, Science and Technology for four years from 1998 to 2001 by the title of "Theoretical research on the static and dynamic structure of lipid membranes". This theme is not a major field in the physical Society of Japan and the population of the research workers in Japan is not so big. In western countries, such interdisciplinary fields are much more promoted than those in Japan. However, our theme is import in the field of biophysics and we acknowledge Japanese government for giving us the grant to perform our interdisciplinary research work.
Under the strong support of this grant, we first performed the theoretical work on the formation of nano-scale regular cluster on the Langmuir trough based on the electrostatic principle, which explained the observed two dimensional nano-cluster made of ionic surfactants. The point is that the regular cluster pattern of ionic surfactants is more preferable than the two … More -dimensional uniform distribution of ions. The analysis showed the qualitative agreement with the observed data.
Next, we analyzed the shapes of the cup-like lipid vesicles formed by adding small amount of protein, talin. By combining the mechanics of cup-like vesicles and statistical mechanics of adsorption, we succeeded to explain well the observed data. However, the shapes of observed cup-like vesicles were regarded as partial sphere as a first order approximation. More detailed Monte Carlo simulation has also been done to reproduced the precise shapes and the local force balance of not only cup-like vesicles but also cylindrical vesicles. More numerical analysis is now going on as to make further investigation.
In general, anesthetic action is non-specific and the anesthetic effect is strongly correlated to the partition coefficient of anesthetics from water to membrane. Dr. Petrov in Bulgarian Academy of Science and Suezaki evaluated the effect of anesthetics to the ion channel in the nerve membrane via changing the stress profiles of membrane inside. Although we cannot find out the experimental evidence of the stress profiles of membrane inside, we showed the theoretical importance of it through the effect of anesthetic action. Less

Report

(5 results)
  • 2001 Annual Research Report   Final Research Report Summary
  • 2000 Annual Research Report
  • 1999 Annual Research Report
  • 1998 Annual Research Report
  • Research Products

    (33 results)

All Other

All Publications (33 results)

  • [Publications] H.Ichinose, Y.Suezaki, T.Kato, M.Takefu: "Electrostatic Theory on the Monodispersed Two-dimensional Nano-Clusters of surfactants"Eighth Tohwa International Symposium, AIP Proceedings. 469. 277-282 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] H.Ichinose, Y.Suezaki, T.Kato, M.Takefu: "Electrostatic Theory on the Formation of Monodispersed Two-dimensional Nanosize Clusters of Partially Fluorinated Surfactants"Langmuir. 15. 4705-4709 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Suezaki Y., Ichinose H., Takiguchi K., Hotani H.: "A statistical mechanical theory for the adsorption of protein to liposomal membranes"Biophysical Chemistry. 80. 119-128 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Suezaki Y., Ichinose H., Takiguchi K., Hotani H.: "A theory for the adsorption of protein to liposomal membranes"Statistical Physics (AIP Conference Proceedings). 519. 435-445 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Suezaki Y., Ichinose H., Takiguchi K., Hotani H.: "A theory for the adsorption of protein to liposomal membranes"Progress in Anesthetic Mechanism (Proc.2nd Int.Workshop on Anesthetic Mechanisms). 6. 578-583 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Sakai, M., Ogawa, Y., Mitsuiki, S., Murata, Y., Suezaki, Y.: "The growth prevented concentration of disinfectant to behavior of E.Coli"Statistical Physics (AIP Conference Proceedings). 519. 726-728 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] 末崎幸生, 一ノ瀬浩幸, 宝名紘一: "分子吸着によるミクロシャボン玉の形態変化"目本物理学会誌. 55(No.4). 273-276 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] 末崎幸生: "界面活性剤の作る分子膜の物理"物性研究. 74. 201-239 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] 末崎幸生, 一ノ瀬浩幸: "球状脂質ベジクルの蛋白質吸着によるコーヒーカップへの形状変化の理論的解析"麻酔と蘇生. 36. 19-22 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Y.Suezaki, H.Ichinose, H.Hotani: "A Theory for the shape change of liposomal membranes due to adsorption of protein"Information. 4. 127-131 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Yukio Suezaki, Alexander G.Petrov: "Lipid-mediated Action of Local Anesthetics on Ion Channels in Membranes"J. Phys. Soc. Japan. 71(No.4)(掲載予定). (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Yukio Suezaki: "Theory on opening-up of liposomal membranes by adsorption of talin"Proceedings of Biophysical Chemistry 2001. 1(掲載予定). (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] H. Ichinose, Y. Suezaki, T. Kato, and M. Takefu: "Electrostatic Theory on the Monodispersed Two-dimensional Nano-Clusters of surfactants"Slow Dynamics in Complex Systems - Eighth Tohwa International Symposium -, Ed. M. Tokuyama and I Oppenheim, AIP (American Institute of Physics) Proceedings. 469. 277-282 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] H. Ichinose, Y. Suezaki, T. Kato, and M. Takefu: "Electrostatic Theory on the Formation of Monodispersed Two-dimensional Nanosize Clusters of Partially Fluorinated Surfractants"Langmuir. 15. 4705-4709 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Suezaki Y., Ichinose H., Takiguchi K., and Hotani H.: "A statistical mechanical theory for the adsorption of protein to lipsomal membranes"Biophysical Chemistry. 80. 119-128 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Suezaki Y., Ichinose H., Takiguchi K., and Hotani H.: "A theory for the adosorption of protein to liposomal membranes"Statistical Physics (AIP Conference Proceedings). 519. 435-445 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Suezaki Y., Ichinose H., Takiguchi K., and Hotani H.: "A theory for the adsorption of protein to liposomal membranes"Progress in Anesthetic Mechanism - Proceedings of the 2^<nd> International Workshop on Anesthetic Mechanisms -. 6. 578-583 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Sakai, M., Ogawa, Y., Mitsuiki, S., Murata, Y. and Suezaki, Y.: "The growth prevented concentration of disinfectant to behavior of E. Coli"Statistical Physics (AIP Conference Proceedings). 519. 726-728 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Y. Suezaki, H. Ichinose and H. Hotani: "A Theory for the shape change of liposomal membranes due to adsorption of protein"Information. 4. 127-131 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Yukio Suezaki and Alexander G. Petrov: "Lipid-mediated Action of Local anesthetics on Ion Channels in Membranes"J. Phys. Soc. Japan. 71,#4(in press). (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Yukio Suezaki: "Theory on opening-up of liposomal membranes by adsorption of talin"Proceedings of Biophysical Chemistry 2001. (in press). (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Y.Suezaki, H.Ichinose, H.Hotani: "A Theory for the shape change of liposomal membranes due to adsorption of protein"Information. 4. 127-131 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] Yukio Suezaki, Alexander G. Petrov: "Lipid-mediated Action of Local Anesthetics on Ion Channels in Membranes"J. Phys. Soc. Japan. 71(No.4)(掲載予定). (2002)

    • Related Report
      2001 Annual Research Report
  • [Publications] Yukio Suezaki: "Theory on opening-up of liposomal membranes by adsorption of talin"Proceedings of Biophysical Chemistry 2001. 1(掲載予定). (2002)

    • Related Report
      2001 Annual Research Report
  • [Publications] Suezaki Y.,Ichinose H.,Takighchi K.,and Hotani H.: "A theory for the adsorption of protein to liposomal membranes."Statistical Physics, AIP Conference Proceedings. 519. 435-445 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] Suezaki Y.,Ichinose H.,Takighchi K.,and Hotani H.: "A theory for the adsorption of proten to liposomal membranes."Progress in Anesthetic Mechanism. 6. 578-583 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] Sakai,M.Ogawa,Y.,Mitsuiki,S.,Murata,Y.and Suezaki,Y.: "A growth prevented concentration of disinfectant to behavior of E.Coli"Statistical Physics, AIP Conference Proceedings. 519. 726-728 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] 末崎幸生,一ノ瀬浩幸,宝谷紘一: "分子吸着によるミクロシャボン玉の形態変化"日本物理学会誌. 55,No.4. 273-276 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] 末崎幸生: "界面活性剤の作る分子膜の物理"物性研究. 74,No.3. 201-239 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] 末崎幸生,一ノ瀬浩幸: "球状脂質ベジクルの蛋白質吸着によるコーヒーカップへの形状変化の理論的解析"麻酔と蘇生. 36. 19-22 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] H.Ichinose,T.Kato,M.Takefu,Y.Suezaki: "Electrostatic Theory on the Formation of Monodispersed Two-Dixunsibnal Nanogize Clusters of Partially Fluorinated Surfactants"Langmuir. 15・14. 4705-4709 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] Y.Suezaki,H.Ichinose,K.Takoguchi,H.Hotani: "A Statistical Mechanical Theory for the Adsorption of Proteins to Lipusomal Membranes"Biophysical Chemistry. 80. 119-128 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] Y.Suezaki,H.Ichinose,M.Takefu,T.kato: "Electrostatic Theory on Monodispersed Two Dimensional Nano-clusters of Surfactants" Slow Dynamics in Complex Systems(Abstract)8th Tohwa Univ.Inte.Symp.Fukuoka. 8. 25-25 (1998)

    • Related Report
      1998 Annual Research Report

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Published: 1998-04-01   Modified: 2016-04-21  

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