NANOTECHNOLOGY Dr. MOHAMMAD IMRAN AZIZ Assistant Professor(Sr.) Department of Physic...
CONTENTSINTRODUCTIONNANOTECHNOLOGY BASICSSALIENT FEATURESAPPROACH, CONCEPTS & STRUCTUREAPPLICATIONSCONCLUSION
Nanotechnology Is Not A New Phenomenon The Lycurgus Cup: 4th Century A.D.Green = Reflected LightRed = Transm...
Nanotechnology in medieval period( 17th centuary)•The steel of Damascus blades, which were first encountered by the ...
“There’s Plenty of Room at the Bottom” (Richard Feynman’s Presentation – Dec 29, 1959)
Why Is NanoScience Popular NowDevelopment of Tools – “Seeing” and“Manipulating” at the Nano-Level Nan...
NANOTECHNOLOGY THEREVOLUTIONOF ENDLESSPOSSIBILITIES
NANOTECHNOLOGY BASICS
BIG FUTURE FOR THE TINY TECHNOLOGY
UNDERSTANDING SIZEHow big (small) are we talking about?
UNDERSTANDING SIZE 1 meter
UNDERSTANDING SIZE 10 centimeters
UNDERSTANDING SIZE 1 centimeter
UNDERSTANDING SIZE 100 micrometers
UNDERSTANDING SIZE 10 micrometers
UNDERSTANDING SIZE 1 micrometer
UNDERSTANDING SIZE 100 nanometers
UNDERSTANDING SIZE 10 nanometers
UNDERSTANDING SIZE 1 nanometer
NANOMETER………..(nm)A nanometer is one billionth of ameter (10-9 m). This is roughly ten (10-times the size of an indi...
SO WHAT IS IT?Nanotechnology is basicallymechanisms that have been builtby nanoscale components usingto place ...
Nanofabrication: Top-Down vs. Top- Bottom- Bottom-UpYou could make one slice 1 nmsize and ...
Why Is Nanotechnology So Cool? Bulk Gold mp = 1064° C ...
nanostructuresNanostructures are defined as anymaterial which has one or moredimensions which are measured on thethe scale...
Nanotubes
Nanowires
Nanoslab
Nanodots
APPLICATIONS
Nanotechnology Applications Information Technology Energy • More efficie...
CONCLUSIONImprovements and developments inexisting products, such as strongerand lighter materials.Potential to initiate c...
+ -[B ][NO ]Thank You!
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Nanotechnology,ppt by dr.imran aziz [compatibility mode]

nanotechnology by dr.imran aziz
Published on: Mar 3, 2016
Source: www.slideshare.net


Transcripts - Nanotechnology,ppt by dr.imran aziz [compatibility mode]

  • 1. NANOTECHNOLOGY Dr. MOHAMMAD IMRAN AZIZ Assistant Professor(Sr.) Department of Physics,Shibli National Post Graduate College, Azamgarh- 276001 E-mail: aziz_muhd33@yahoo.co.in
  • 2. CONTENTSINTRODUCTIONNANOTECHNOLOGY BASICSSALIENT FEATURESAPPROACH, CONCEPTS & STRUCTUREAPPLICATIONSCONCLUSION
  • 3. Nanotechnology Is Not A New Phenomenon The Lycurgus Cup: 4th Century A.D.Green = Reflected LightRed = Transmitted Light Image of silver/gold nanoparticle in the Lycurgus cup The British Museum. http://www.thebritishmuseum.ac.uk/ (March 2004)
  • 4. Nanotechnology in medieval period( 17th centuary)•The steel of Damascus blades, which were first encountered by the Crusaderswhen fighting against Muslims, had features not found in European steels• A characteristic wavy banding pattern known as damask, extraordinarymechanical properties, and an exceptionally sharp cutting edge.• Here we use high-resolution transmission electron microscopy to examine asample of Damascus sabre steel from the seventeenth century and find that itcontains carbon nanotubes as well as cementite nanowires.Nature 444, 286 (16 November 2006)
  • 5. “There’s Plenty of Room at the Bottom” (Richard Feynman’s Presentation – Dec 29, 1959)
  • 6. Why Is NanoScience Popular NowDevelopment of Tools – “Seeing” and“Manipulating” at the Nano-Level Nano- – STM (Scanning Tunneling Microscopy) – AFM (Atomic Force Microscopy) – Other tools
  • 7. NANOTECHNOLOGY THEREVOLUTIONOF ENDLESSPOSSIBILITIES
  • 8. NANOTECHNOLOGY BASICS
  • 9. BIG FUTURE FOR THE TINY TECHNOLOGY
  • 10. UNDERSTANDING SIZEHow big (small) are we talking about?
  • 11. UNDERSTANDING SIZE 1 meter
  • 12. UNDERSTANDING SIZE 10 centimeters
  • 13. UNDERSTANDING SIZE 1 centimeter
  • 14. UNDERSTANDING SIZE 100 micrometers
  • 15. UNDERSTANDING SIZE 10 micrometers
  • 16. UNDERSTANDING SIZE 1 micrometer
  • 17. UNDERSTANDING SIZE 100 nanometers
  • 18. UNDERSTANDING SIZE 10 nanometers
  • 19. UNDERSTANDING SIZE 1 nanometer
  • 20. NANOMETER………..(nm)A nanometer is one billionth of ameter (10-9 m). This is roughly ten (10-times the size of an individual atom.
  • 21. SO WHAT IS IT?Nanotechnology is basicallymechanisms that have been builtby nanoscale components usingto place every atom andmolecule in a desired place
  • 22. Nanofabrication: Top-Down vs. Top- Bottom- Bottom-UpYou could make one slice 1 nmsize and smallest size is part ofNanostructure of bulk material
  • 23. Why Is Nanotechnology So Cool? Bulk Gold mp = 1064° C Color = gold 1 nm gold particles 20 nm gold particles 100 nm gold particles mp = 700 °C mp = ~1000 °C mp = ~1000 °C λmax = 420 nm λmax = 521 nm λmax = 575 nmColor = brown-yellow Color = red Color = purple-pink
  • 24. nanostructuresNanostructures are defined as anymaterial which has one or moredimensions which are measured on thethe scale of nanometers. This definitionhas been applied for structures that havea conning dimension ranging from 600 nmin size to structures which are only one ortwo atoms in size (less than ananometer). These structures vary widelyin form and can consist of slabs, wires,dots, rings, tubes,hollow spheres andmore
  • 25. Nanotubes
  • 26. Nanowires
  • 27. Nanoslab
  • 28. Nanodots
  • 29. APPLICATIONS
  • 30. Nanotechnology Applications Information Technology Energy • More efficient and cost • Smaller, faster, more effective technologies for energy efficient and energy production powerful computing − Solar cells and other IT-based − Fuel cells systems − Batteries − Bio fuels Medicine Consumer Goods • Cancer treatment • Foods and beverages −Advanced packaging materials, • Bone treatment sensors, and lab-on-chips for • Drug delivery food quality testing • Appetite control • Appliances and textiles • Drug development −Stain proof, water proof and • Medical tools wrinkle free textiles • Diagnostic tests • Household and cosmetics • Imaging − Self-cleaning and scratch free products, paints, and better cosmetics
  • 31. CONCLUSIONImprovements and developments inexisting products, such as strongerand lighter materials.Potential to initiate completely newproducts and industries that do notexist today
  • 32. + -[B ][NO ]Thank You!

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