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NANOTECHNOLOGY
NANOTECHNOLOGY
NANOTECHNOLOGY
NANOTECHNOLOGY
NANOTECHNOLOGY
NANOTECHNOLOGY
NANOTECHNOLOGY
NANOTECHNOLOGY
NANOTECHNOLOGY
NANOTECHNOLOGY
NANOTECHNOLOGY
NANOTECHNOLOGY
NANOTECHNOLOGY
NANOTECHNOLOGY
NANOTECHNOLOGY
NANOTECHNOLOGY
NANOTECHNOLOGY
NANOTECHNOLOGY
NANOTECHNOLOGY
NANOTECHNOLOGY
NANOTECHNOLOGY
NANOTECHNOLOGY
NANOTECHNOLOGY
NANOTECHNOLOGY
NANOTECHNOLOGY
NANOTECHNOLOGY
NANOTECHNOLOGY
NANOTECHNOLOGY
NANOTECHNOLOGY
NANOTECHNOLOGY
NANOTECHNOLOGY
NANOTECHNOLOGY
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NANOTECHNOLOGY

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The technology of 21st century!!! …

The technology of 21st century!!!
By Parag Tyagi & Anuja Pharse...
19/11/10

Published in: Technology
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    • 1. THE TECHNOLOGY OF 21ST CENTURY: NANOTECHNOLOGY
    • 2. PRESENTED BY Parag P. Tyagi Anuja B. Pharse Priya B. Yadav Vaishali A. Deore
    • 3. 1. WHAT IS NANO? Nano  Originates from the Greek word ‘dwarf’ Factor  Nano is of the factor 10-9 How small is it? for e.g.:-  Oxygen atoms  Water molecule NANOTECHNOLOGY
    • 4. HOW ABOUT THIS.. A red blood cell Human hair fragment (the purplish thing)
    • 5. a bit more…  A fingernail Comparison A man’s beard NANOTECHNOLOGY
    • 6. 2.WHAT IS NANOTECHNOLOGY? Definition  Technology for microscopic devices  Refers to various field
    • 7. 3. WHAT’S SO SPECIAL ABOUT NANOTECH & WHY IS IT AN ISSUE?  The AFM (Atomic Force Microscope)
    • 8.  Quantum Effects:  Quantum effect describes the electron properties  The effect comes into play when nanometer size range is reached  Quantum effects begin to dominate behavior of the matter  Materials reduced to nanoscale show different properties  For instance,
    • 9.  Opaque substances (viz. copper)  Inert materials (viz. platinum)  Stable materials (viz. aluminium)  Solids (viz. gold)  Insulators (viz. silicon)
    • 10.  Surface Area  Comparison of bulk form and nano scale form of same mass of material  This make material chemically more reactive
    • 11. To understand the effect of particle size on surface area. Consider this example,  the coin weighs 26.96 grams  and has a diameter of about 4 centimeter  And has a total surface area of approx. 27.70 sq. cm.
    • 12.  if, the same amount of coin were divided into tiny particles – say 1nm in diameter  then, the total surface area of those particles would be 11,400 sq. meters  The surface area of those particles is over 4 million times greater than the surface area of the silver coin.
    • 13. EVOLUTIONARY V/S REVOLUTIONARY NANOTECHNOLOGIES FOR EXAMPLE,  The picture over left is the first point contact transistor built in 1947.  It has a diameter of over 1 centimeter The first point contact transistor Description
    • 14.  Intel’s Nehalem chip architecture  of size 32nm  which incorporates about 1.9 billion transistors in a single chip Intel’s 32nm Nehalem chip architecture Description
    • 15.  Which is equivalent to, shrinking of 509 meters tall Tapei-101 (currently the tallest building of the world ) to the size of a 1.6 millimeter tall grain of rice
    • 16. 4.HISTORY OF NANOTECHNOLOGY  Historical Background  The First mention  By James Clerk Maxwell (in 1867)  During the beginning of 20th century  Richard Adolf Zsigmondy (in 1910’s)  Irving Langmuir & Katharine B. Blodgett (in 1920’s)  Gordon Moore (in 1965’s)
    • 17.  In 1950’s  physicist  Richard Feynman
    • 18. 5.IMPACT ON ECONOMY Affected Areas Impact Economy impact /yr Transport- ation Lighter & safer vehicle $70billion /yr Energy Reduction in production $100billion/ yr Manufacturi ng Nano structuring Material properties $340billion/ yr
    • 19. 6.APPLICATIONS  Nanocomputer  Nanomotors  Nanowires  Consumer Goods
    • 20. 7.1.NANOCOMPUTER  It is smaller then micro & mini computer.  Types of Nanocomputer: Humanizing Nanocomputer Quantum Nanocomputer
    • 21. HUMANIZING NANOCOMPUTER  It is a nanorobot which serves as antibodies  Protect human bodies against pathogenic bacteria & viruses
    • 22. EXAMPLES Nanorobot carrying sperms
    • 23. 7.2.NANO MOTORS  It is device which converts energy to movement  Units
    • 24. 7.3.NANOWIRES  Referred as 1-Dimensional materials of ratio(length - width)1000 or more.  It cannot be seen in 3-D.  Uses
    • 25. 7.4.CONSUMER GOODS  Foods  Bacteria identification  Nanocomposite  Households  Self cleaning  Agriculture  Solution for various problems
    • 26. 8.IMPLICATIONS 1.Health Issue 2.Environmental Issue 3.A Need For Regulation
    • 27. 8.1.HEALTH ISSUE • Nano-particles • Nano-medicine
    • 28. NANO-PARTICLES  Health hazards.
    • 29. NANO-MEDICINE  Cancer therapy
    • 30. CANCER TREATMENT USING MOLECULAR IMAGING
    • 31. 8.2.ENVIRONMENTAL ISSUE  Nano pollution  Nano filtration.  Magnetic nanoparticles
    • 32. 8.3.A NEED FOR REGULATION Since there are good as well as bad effects of nanotechnology their should be some regulation

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