MALLANGIN David

M1 BCMG

NANO TECHNOLOGY

CONTENTS : INTRODUTION

NANOSCALE

APPLICATIONS

IMPLICATION

CONCLUSION

What is nanotechnology ?

Nanotechnology is …

A science whose theme is the control of matter on an atomic and molecular scale

How small is the Nano Scale ?

One nanometer is one billionth, or 10-9 of meter.

One humain hair is about 100,000 nanometers.

DNA filament10 nm

HISTORY… 1959 : Richard Feynman won a Nobel prize for « fundamental work in quantum electrode » ‘‘There’s plenty of room at the bottom’’

’’ il y a plein d'espace en bas ’’

1985, researchers reported the discovery of the ‘‘buckyball’’ A “Buckyball.”

0.7 nm

1991 discovery of related molecular shape 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 :

Nanorobotics :

• Cancer cells can be killed without the painfull side effect of chemotherapy.

•Diagnostic, Treatment and repair

BENEFICE

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.

Space Benefice of Nanotechnologie…

Cheaper space flights

Nano foods …• Preservation of food without refrigeration• Protection of food from bacteria and diseases• Lighter foods

Implication and Risks of Nanotechnology…

Potentiel risks of nanotechnologie can broadly grouped into three areas :

• Health issues :

• Environmental issues :

• Societal issues :

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.

Conclusion

• http://www.newscientist.com• http://wanderlustmind.com/2009/01/18/interactive-nanotech-food• http://scienceblogs.com/framing-science/2008/05/at_the_new_york_tim

es_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)

Bibliography