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Microbes and cells on surface of nanoporous metals

Research Project

Project/Area Number 24760572
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Structural/Functional materials
Research InstitutionKyoto University

Principal Investigator

HAKAMADA Masataka  京都大学, エネルギー科学研究科, 准教授 (30462849)

Project Period (FY) 2012-04-01 – 2014-03-31
Project Status Completed (Fiscal Year 2013)
Budget Amount *help
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2013: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2012: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
Keywordsナノポーラス / 金 / 抗菌性 / ナノ材料 / 多孔質 / 金属 / 抗菌 / 細菌 / ポーラス材料
Research Abstract

Microbes (Escherichia coli and Staphylococcus epidermidis) were cultured on nanoporous gold fabricated by dealloying. For comparison, they were also cultured on flat gold plate with no nanoporous structure. Numbers of both microbes decreased on nanoporous gold more significantly than those on flat gold plate. Observations with scanning electron microscope and scanning probe microscope revealed that Escherichia coli on nanoporous Au had dimple on its center and that Staphylococcus epidermidis on nanoporous gold had fractured cell membrane. These antibacterial properties of nanoporous gold are presumably attributed to the abnormal effect of nanoporous gold on surrounding organic matters.

Report

(3 results)
  • 2013 Annual Research Report   Final Research Report ( PDF )
  • 2012 Research-status Report
  • Research Products

    (2 results)

All 2014 2012

All Journal Article (2 results) (of which Peer Reviewed: 2 results)

  • [Journal Article] Visible-light photocatalysis of ZnO deposited on nanoporous Au2014

    • Author(s)
      M. Hakamada, M. Yuasa, T. Yoshida, F. Hirashima, M. Mabuchi
    • Journal Title

      Applied Physics A

      Volume: 114(4) Issue: 4 Pages: 1061-1066

    • DOI

      10.1007/s00339-014-8299-1

    • NAID

      120006596530

    • Related Report
      2013 Annual Research Report 2013 Final Research Report
    • Peer Reviewed
  • [Journal Article] Catalytic decoloration of methyl orange solution by nanoporous metals2012

    • Author(s)
      M. Hakamada, F. Hirashima, M. Mabuchi
    • Journal Title

      Catalysis Science and Technology

      Volume: 2 Issue: 9 Pages: 1814-1817

    • DOI

      10.1039/c2cy20218b

    • NAID

      120006596529

    • Related Report
      2013 Final Research Report 2012 Research-status Report
    • Peer Reviewed

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Published: 2013-05-31   Modified: 2019-07-29  

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