Successfully reported this slideshow.
We use your LinkedIn profile and activity data to personalize ads and to show you more relevant ads. You can change your ad preferences anytime.

Nano Technology


Published on

Basics of Nano

Published in: Technology, Business

Nano Technology

  1. 1. PLAR - Nanotechnology Nanotechnology – an overview PL. Arunachalam, Diploma in Computer Engineering Thiagarajar polytechnic college Salem.
  2. 2. Synopsis <ul><li>Introduction </li></ul><ul><li>Applications </li></ul><ul><li>Synthesis of nanomaterials </li></ul><ul><li>Characterization and detection techniques </li></ul><ul><li>Concluding remarks </li></ul>PLAR - Nanotechnology
  3. 3. <ul><li>Nanotechnology is the creation of functional materials, devices, and systems through control of matter on an atomic or molecular scale. </li></ul><ul><li>The creation and use of structures, devices and systems that have novel properties and functions because of their small and/or intermediate size. </li></ul>DEFINITION OF NANOTECHNOLOGY PLAR - Nanotechnology
  4. 4. BEST COMPARSION PLAR - Nanotechnology
  5. 5. PLAR - Nanotechnology “ I can hardly doubt that when we have some control of the arrangement of things ON A SMALL SCALE we will get an enormously greater range of possible properties that substances can have.” … .. R. FEYNMAN California Institute of Technology, December 26, 1959 atom by atom. maneuvering
  6. 6. <ul><li>Atomic domains (grains, layers or phases) spatially confined to 100nm in at least one dimension </li></ul><ul><li>Zero dimension – clusters of aspect ratio 1 to infinity – Quantum dots </li></ul><ul><li>One dimension – Multilayers – Nanowires, CNT (Carbon nano tubes) </li></ul><ul><li>Two dimension – Ultrafine-grained over layers (coatings) </li></ul><ul><li>Three dimension – Nanophase materials </li></ul>NANOMATERIALS – DEFN. & CLASSIFICATION PLAR - Nanotechnology
  7. 7. UNIQUENESS OF NANOMATERIALS <ul><li>Grains, pores, interface thickness and defects are of similar dimensions. </li></ul><ul><li>Nanomaterials have a large surface area but their volume is very small. </li></ul><ul><li>Improve mechanical properties (increased strength, toughness etc.,) </li></ul><ul><li>High melting point compounds. </li></ul>PLAR - Nanotechnology
  8. 8. INTERDISCIPLINARY APPROACH REQUIRED PLAR - Nanotechnology Engineering Physical Sciences Bioscience NANOTECHNOLOGY
  9. 9. FIELDS OF NANOTECHNOLOGY PLAR - Nanotechnology Nanotechnology Nanomedicine Nanobiotechnology Nanolithography Nanoelectronics Nanomagnetics Nano Biodevices NEMS (nano electro mechanical sys) Nano Biomimetic materials Nano Pulp & Paper Technology
  10. 10. Applications of Nanomaterial Based Products PLAR - Nanotechnology <ul><li>Automotive industry </li></ul><ul><li>Engineering </li></ul><ul><li>Medicine </li></ul><ul><li>Cosmetics </li></ul><ul><li>Textile </li></ul><ul><li>Sports </li></ul><ul><li>Chemical industry </li></ul><ul><li>Electronic industry </li></ul>
  11. 11. PLAR - Nanotechnology LOTUS – SELF CLEANING Water lily Super hydrophobicity - Self cleaning SEM Surface roughness – Self cleaning Rinsing with water Water drops – clean surface Applications -
  12. 12. PEACOCK FEATHER PLAR - Nanotechnology <ul><li>Nano structured particles </li></ul>Applications <ul><li>Colour never fade </li></ul><ul><li>Scratch free </li></ul><ul><li>Cleaning surface </li></ul>
  13. 13. PLAR - Nanotechnology Atlantic – Aprilia fuel cell bike Photovoltaic cell Fuel Cell NANOTECHNOLOGY – FUEL CELL Hydrogen
  14. 14. PLAR - Nanotechnology NANOTECHNOLOGY – COSMETIC APPLICATIONS Acne treatment Herbal liposome for cosmetic applications Before treatment After treatment Titanium oxide
  15. 15. NANO MATERIAL - OPTICAL PROPERTIES PLAR - Nanotechnology Gold (Bulk) Nano Gold colloids Au – Cancer Treatments Applications
  16. 16. PLAR - Nanotechnology NANO- TEXTILE APPLICATIONS Nano Jacket Student’s uniform Nano tie and scarf
  17. 17. PLAR - Nanotechnology Synthesis of Nanomaterials Synthesis of Nanomaterials Top - down method (Destruction) Bottom-up method (Construction)
  18. 18. Synthesis of Nanomaterials PLAR - Nanotechnology Top - Down method High energy Ball Milling Lithography Gas condensation Severe plastic deformation
  19. 19. SYNTHESIS OF NANOMATERIALS PLAR - Nanotechnology Bottom Up method Physical Vapor Deposition Chemical Vapor Deposition Plasma Processes Sol-gel Processing Soft- Lithography Self- Assembly
  20. 20. CHARACTERIZATION AND DETECTION TECHNIQUES <ul><li>Essential requirements for the development, manufacturing and commercialization of nanomaterials is their physical, chemical and biological properties on a nanoscale level </li></ul><ul><li>For determination of atomic structure and chemical composition of solid or liquid nanomaterials – spectroscopic methods, X-ray and Neutron diffraction </li></ul><ul><li>For determination of size and shape – Electron microcopies (SEM or TEM) </li></ul>PLAR - Nanotechnology
  21. 21. PLAR - Nanotechnology Optical Microscope Scanning Electron Microscope HIGH DEPTH OF FIELD NANOMATERIAL
  23. 23. PLAR - Nanotechnology WORKING PRINCIPLE OF AFM Atomic Force Microscope Force Surface Atoms Tip Atoms Photo detector Laser Beam Tip Cantilever Line Scan Surface
  24. 24. CONCLUDING REMARKS PLAR - Nanotechnology <ul><li>Choice of nanocrystalline or nanostrucured material </li></ul><ul><li>Application </li></ul><ul><li>Final property requirement </li></ul><ul><li>Grain sizes </li></ul><ul><li>Density </li></ul><ul><li>Porosity </li></ul><ul><li>Choice of a suitable process </li></ul><ul><li>Top down or bottom up approach </li></ul><ul><li>Economics or viability </li></ul><ul><li>Nano resisters are like papers. </li></ul><ul><li>. </li></ul><ul><li>. </li></ul><ul><li>. </li></ul><ul><li>. </li></ul><ul><li>. </li></ul>
  25. 25. PLAR - Nanotechnology Thanking You pl_arun