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Nanotechnologie anglais

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    Nanotechnologie anglais Nanotechnologie anglais Presentation Transcript

    • NANO TECHNOLOGY
      MALLANGIN David
      M1 BCMG
    • CONTENTS :
      INTRODUTION
      NANOSCALE
      APPLICATIONS
      IMPLICATION
      CONCLUSION
    • Whatis
      nanotechnology ?
    • Nanotechnologyis …
      A science whosethemeis the control of matter on an atomic and molecularscale
    • How smallis the Nano Scale ?
      • One nanometeris one billionth, or 10-9 of meter.
      • One humain hairis about 100,000nanometers.
      DNA filament
      10 nm
    • HISTORY…
      • 1959 : Richard Feynman won a Nobel prize for « fundamentalwork in quantum electrode »
      ‘‘There’splenty of room at the bottom’’
      ’’ il y a plein d'espace en bas ’’
      • 1985, researchersreported the discovery of the ‘‘buckyball’’
      A “Buckyball.”
      0.7 nm
      • 1991 discovery of relatedmolecularshape know as the ‘‘ carbon nanotube ’’
      A “Carbon Nanotube”
    • Impact on Everyday life…
      • today, the Nanoparticules, the most frequently used (65%) is silver, and in a least measures the carbon (17%). Come then titanium, the silica, zinc and gold.
      Silica( salt, sugar, cream)
      Titanium
      Titanium, Silver, silica and carbone
    • OTHER APPLICATIONS OF NANOTECHNOLOGY
    • IN
      • Cancer treatment:
      • Cancer cellscanbekilledwithout the painfullsideeffect of chemotherapy.
      • Nanorobotics:
      • Diagnostic, Treatment and repair
    • BENEFICE
    • SpaceBenefice of Nanotechnologie…
      • Improvement in shuttles and spaceport
      • using nano particles we can expect computers of size of just a little sugar cube.. without compromising on any of its usual functions.
      • Cheaperspaceflights
      • Nano foods …
      • Preservation of foodwithoutrefrigeration
      • Protection of foodfrombacteria and diseases
      • Lighterfoods
    • Implication and Risks of Nanotechnology…
      • Potentiel risks of nanotechnologie canbroadlygroupedintothree areas :
      • Health issues :
      • Environmental issues :
      • Societal issues :
    • Conclusion
      • However, if the researchers in this field put together an ethical set of guidelines and follow them, then we should be able to develop nanotechnology safely while still reaping its promised benefits.
      Nanotechnology is predicted to be developed by 2020 but much depends on our commitment to its research.
    • Bibliography
      http://www.newscientist.com
      http://wanderlustmind.com/2009/01/18/interactive-nanotech-food
      http://scienceblogs.com/framing-science/2008/05/at_the_new_york_times_and_glob.php
      http://1nanotechnology.blogspot.com/2007/08/conclusion.html
      http://en.wikipedia.org/wiki/Nanotechnology
      Alberto Quiñonez, Ph.D.(Slides)
      Karen Wosczyna-Birch (Slides)