Nanotechnology: Basic introduction to the nanotechnology.
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Nanotechnology: Basic introduction to the nanotechnology.

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This simple presentation will help you to understand the every aspects of nanotechnology including basic definition and it's practical application in a very simple yet precise manner.

This simple presentation will help you to understand the every aspects of nanotechnology including basic definition and it's practical application in a very simple yet precise manner.

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  • 1. Nanotechnology Group Group 2
  • 2. Nanotechnology….? • Nanotechnology is engineering at the molecular (groups of atoms) level • It is the collective term for a range of technologies, techniques and processes that involve the manipulation of matter at the smallest scale (from 1 to 100 nm 2) W ith15,342 atoms, this parallel-shaft speed reducer gear is one of ith W 15,342 atoms, this parallel-shaft speed reducer gear is one of the largest nanomechanical devices ever modeled the largest nanomechanical devices ever modeled
  • 3. Nanotechnology: Size and Scale 100µm Human Hair 75 µm Plant and Animal Cells 10µm 0.18µm Feature Size Most Bacteria 1µm 100nm 10nm Lysozyme Transistor Virus Nanotechnology Proteins Carbon Nano-tubes 1nm 0.1nm Atoms Cooper, 2001
  • 4. History of nanotechnology Norio Taniguchi introduced the term ‘nanotechnology’ In 1959 Richrad Feynman presented ideas for creating Nano scale machines 1980s, development in this field was greatly enhanced with advances in electron microscopy
  • 5. Approaches in nanotechnology Top-down Approach Bottom-up Approach Creating Nano-scale materials Assembling Nano materials by physically or chemically atom-by-atom or molecule-by breaking down larger materials molecule (self assembling)
  • 6. Aspects of nanotechnology
  • 7. Nano materials Nano powders - building blocks of nano materials (particles less than 100 nm in size) Porous metallic ‘nanocubes’ store large amounts of H2 Nanoparticles of gold for new catalysts The scale of nanopowders www.cordis.lu/nanotechnology
  • 8. Carbon nanotubes computers and televisions) Nano membrane filtration systems (safe, clean, (sensors, fuel cells,
  • 9. Molecular electronic ‘cross bar latches’ (tiny Nano devices) Quantum dots and artificial atoms (small devices that
  • 10. Nanotechnology applications Medicine Medicine Ex. Nano biotechnology Ex. Nano biotechnology Electronics and Electronics and information information technologies technologies Energy Energy ex. Renewable ex. Renewable energy energy
  • 11. Chemistry and Chemistry and Environment Environment Military and Military and security security applications applications Consumer goods Consumer goods
  • 12. Stages of Nanotechnology Agrifood applicatinos currently in passive to early “active” stage Passive Nanostructures Coatings, polymers,ceramic s 2001 2005 Active Nanostructures Transistors Targeted drugs Adaptive structures 2010 Systems of Nanosystems Robotics 3D networks Guided assemblers 2020 Molecular Nanosystems Molecules by design Evolutionary systems
  • 13. Nanotechnology in Agriculture Animal or Animal or Plant Health Plant Health Ex: Detect Ex: Detect pathogens pathogens Plant production Ex: Delivery of DNA to plants Animal Production Ex: Nano tube sensors to detect hormone level changes
  • 14. Agrochemical Ex: Nanoparticles in pesticides In food industry Convergence Nano-Geo-(Bio)Info technology Packaging Ex: Prevent or respond to spoilage Sensing Ex: Detect chemicals or food borne pathogen Safety
  • 15. Nanotechnology in SL; At a glance…… 2006 - Sri Lanka’s National Nanotechnology Initiative (SLNNI) 2008  Establishment of NANCO (Pvt) Ltd Sri Lanka Institute of Nanotechnology (Pvt) Ltd. (SLINTEC)  Merger of NANCO (Pvt) Ltd. and SLINTEC (Pvt) Ltd. Establishment of  A world class Nanotechnology Laboratory  Establishment of a Nanoscience Park
  • 16. Health and environmental impacts Health risks Medical application of nanoparticles  ex: enhance drug delivery Some nanoparticles —freely mobile  Negative health and environmental impacts
  • 17. USA Highest investor & patent holder 1 1 c p bj ere so t fon blg l ao y In 2004 US$ 4 billion worldwide From today to tomorrow….. Leading countries Japan, Western Europe Source: Lux Research 2008
  • 18. References…….. 1. Chen et al.,2007. Manufacturing at the Nanoscale. National Nanotechnology Initiative Workshop Report. Science and Technology Council Committee on Technology. National Science Foundation. Retrieved March 3, 2012, from http://www.nano.gov/NNI-Manufacturing-at-the-Nanoscale.pdf. 2. Hood, E. 2004. Nanotechnology : Looking as we leap. Environment Health Perspect. Retrieved March 3, 2012 from http://dx.doi.org/10.1289/ehp.112-9740
  • 19. 3. National Institute of Food and Agriculture (NIFA) US Department of Agriculture (USDA), 2009. Nanotechnology for Food and Agriculture Industry. Retrieved March 5, 2012 from http://www.google.lk/#hl=en&output=search&sclient=psyab&q=Nanotechnology. 4. Interfaculty Environmental Science Department (IVAM) of the University of Amsterdam, Special report 3/30, Buying the nano-market. Retrived March 9 2012, from http://www.google.lk/#hl=en&sclient=psyab&q=Lux+Research.+2008.