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Geetha
 

Geetha

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    Geetha Geetha Presentation Transcript

    • NANOTECHNOLOGY
      “A small science with a huge potential”
    • Nanotechnology
      Nanotechnology: The creation of functional materials, devices and systems through control of matter on the nano Scale(10^-9).
    • Why Nanotech?
      Small particles are ‘invisible’ :
      Transparent Coatings are attainable
      Small particles are very weight efficient and Uniform coverage :
      Surfaces can be modified with minimal material.
    • Components
    • Different types of Nanomaterials
      Nanopowder
      Nanotube
      Nanomaterial in Biological Sciences
    • Nanopowder Applications
      Useful in manufacturing inhalable drugs.
      Particles in the micrometer scale often, leads to clumping problems.
      Could use smaller nanoparticles to prevent clumping by forcing spacing.
    • Nanotube
      Carbon Nanotube(CNT)
      Used to build nanoscale
      electronic and
      mechanical devices
    • Nanotubes are Used to detect the presence, and exact location, of altered genes.
    • Nanotube applications
      The IBM used nanotubes to make a "voltage inverter" circuit, also known as a "NOT"
      Structural elements in bridges, buildings, towers, and cables
      Material for making lightweight vehicles for all terrains
      Open-ended straws for chemical probing and cellular injection
      Nanoelectronicsincluding batteries capacitors and diodes
    • Nanostructures in Biological Systems
      Two major concerns
      1. To be large enough they don’t just
      pass through the body.
      2. Need to be small enough they don’t
      accumulate in vital organs and don’t
      create toxicity problems.
    • Cancer Detection and Diagnosis
      Currently done by physical examination or imaging techniques won’t detect
      molecular changes exactly.
      Need to detect changes in small percentage of cells, need very sensitive
      technology, “enter” nanostructures
    • Improvements in Diagnostics
      Nanodevices could exam tissue or cell
      samples without physically altering them.
      Perform multiple tests simultaneously.
      Leading to faster, more efficient, and less sample consuming diagnostic tests.
    • Thank You!