Geetha

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Geetha

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

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