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The elucidation of the life support mechanism under high vacuum condition: the application to space environment

Research Project

Project/Area Number 26506008
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field 宇宙生命学
Research InstitutionHamamatsu University School of Medicine

Principal Investigator

OHTA ISAO  浜松医科大学, 光尖端医学教育研究センター, 技術専門員 (20464133)

Co-Investigator(Kenkyū-buntansha) 針山 孝彦  浜松医科大学, 医学部, 教授 (30165039)
高久 康春  浜松医科大学, 医学部, 特任助教 (60378700)
Project Period (FY) 2014-04-01 – 2017-03-31
Project Status Completed (Fiscal Year 2016)
Budget Amount *help
¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2016: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2015: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2014: ¥3,510,000 (Direct Cost: ¥2,700,000、Indirect Cost: ¥810,000)
Keywords走査電子顕微鏡 / NanoSuit / 高真空 / 生命維持 / バリアー機能 / FE-SEM / バリアー性能
Outline of Final Research Achievements

In this research, with the aim of elucidating the life support mechanism in space, we have examined various living biological specimens protected with a polymerized thin film "NanoSuit". We used the high vacuum conditions (10-3-10-7 Pa) in the observation chamber of a field-emission scanning electron microscopy (FE-SEM) as the experimental space, and revealed that a simple surface modification by electron beams can equip some multicellular organisms with a strong tolerance against the high vacuum. Furthermore, to protect living single cells, we have developed a new solution “Surface Shield Enhancer (SSE)” that consists of glycerin and electrolytes as a component for NanoSuit. The SSE based NanoSuit affords a much stronger barrier to gas and/or liquid loss than the previous NanoSuit did and, since it allows more detailed images, it could significantly help to elucidate the ‘real’ organization of cells and their functions under the space environment.

Report

(4 results)
  • 2016 Annual Research Report   Final Research Report ( PDF )
  • 2015 Research-status Report
  • 2014 Research-status Report
  • Research Products

    (6 results)

All 2017 2016 2015 2014

All Journal Article (4 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 4 results,  Open Access: 4 results,  Acknowledgement Compliant: 2 results) Presentation (2 results) (of which Invited: 1 results)

  • [Journal Article] A modified ‘NanoSuit’ preserves wet samples in high vacuum: direct observations on cells and tissues in field-emission scanning electron microscopy.2017

    • Author(s)
      Takaku Y, Suzuki H, Kawasaki H, Ohta I, Ishii D, Hirakawa S, Tsutsui T, Matsumoto H, Takehara S, Nakane C, Sakaida K, Suzuki C, Muranaka Y, Kikuchi H, Konno H, Shimomura M, Hariyama T
    • Journal Title

      R Soc Open Sci

      Volume: なし Issue: 3 Pages: 160887-160887

    • DOI

      10.1098/rsos.160887

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] Direct profiling of the phospholipid composition of adult Caenorhabditis elegans using whole-body imaging mass spectrometry.2015

    • Author(s)
      Hameed S, Ikegami K, Sugiyama E, Matsushita S, Kimura Y, Hayasaka T, Sugiura Y, Masaki N, Waki M, Ohta I, Hossen MA, Setou M
    • Journal Title

      Anal Bioanal Chem

      Volume: 407 Issue: 25 Pages: 7589-7602

    • DOI

      10.1007/s00216-015-8932-7

    • Related Report
      2015 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] A ‘NanoSuit’ surface shield successfully protects organisms in high vacuum: observations on living organisms in an FE-SEM2015

    • Author(s)
      Y. Takaku, H. Suzuki, I. Ohta, T. Tsutsui, H. Matsumoto, M. Shimomura, T. Hariyama
    • Journal Title

      Proceedings of The Royal Society B

      Volume: 282巻1802号 Issue: 1802 Pages: 20142857-20142857

    • DOI

      10.1098/rspb.2014.2857

    • Related Report
      2014 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Dressing living organisms in a thin polymer membrane, NanoSuit, for high vacuum FE-SEM observation2014

    • Author(s)
      Ohta I, Takaku Y, Suzuki H, Ishii D, Muranaka Y, Shimomura M, Hariyama T
    • Journal Title

      Microscopy

      Volume: 63 Issue: 4 Pages: 295-300

    • DOI

      10.1093/jmicro/dfu015

    • Related Report
      2014 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] 100kV汎用TEMのComputer Tomography (CT)による3D像を用いた細胞小器官の細胞活性に伴う構造比較2016

    • Author(s)
      村中祥悟、太田勲、熊切葉子
    • Organizer
      日本顕微鏡学会
    • Place of Presentation
      仙台国際センター
    • Year and Date
      2016-06-14
    • Related Report
      2016 Annual Research Report
  • [Presentation] Dressing living organisms in a thin polymer membrane, the NanoSuit, for high-vacuum FE-SEM observation.2014

    • Author(s)
      Hariyama T, Ohta I, Hirakawa S, Kawasaki H, Suzuki H, Ishii D, Muranaka Y, Shimomura M, Takaku Y
    • Organizer
      日本顕微鏡学会
    • Place of Presentation
      幕張メッセ国際会議場
    • Year and Date
      2014-05-13
    • Related Report
      2014 Research-status Report
    • Invited

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Published: 2014-04-04   Modified: 2018-03-22  

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