The Nano world

• Nanotubes

  • like a straw
  • credibly strong and flexible
  • can conduct electricity
  • made from cardon
• Nanomembranes

  • made of tiny materials (hair strand)
  • they are used to filter stuff
  • cleaning water
• Nanotechnology Applications in:

  • Medicine
  • Electronics
  • Food
  • Cleaner Water
  • Fabric
• Medicine


  Massachusetts Institute of Technology (MIT) researchers

  designed nanoparticles that can quickly locate a tumor, then set

  off a chemical reaction that attracts larger swarms of drug-

  delivering nanoparticles to the site.
• MRI (Magnetic Resonance Imaging) scan
• Electronics


  Nanomaterials like graphene and cellulosic nanomaterials are being used for various types of flexible electronics.
• Graphene

  
• Cellulosic Nanomaterials

  
• Developments include the following:

  • Improving display screens on electronics devices. This involves reducing power consumption while decreasing the weight and thickness of the screens.

  • Increasing the density of memory chips. Researchers are developing a type of memory chip with a projected density of one terabyte of memory per square inch or greater.

  • Reducing the size of transistors used in integrated circuits. One researcher believes it may be possible to "put the power of all of today's present computers in the palm of your hand."
• Food


  Containers with silver nanoparticles provide antimicrobial, anti- fungal, anti yeasts, and anti-viral activities.
• Food

  Clay nanocomposites are being used to provide an impermeable barrier to gasses such as oxygen or carbon dioxide in lightweight bottles, cartons and packaging films.
• Food


  • Storage bins are being produced with silver nanoparticles embedded in the plastic.
  • The silver nanoparticles kill bacteria from any material that was previously stored in the bins, minimizing health risks from harmful bacteria.
• Cleaner Water


  Nanotechnology is being used to develop solutions to three very different problems in water quality. One challenge is the removal of industrial wastes, such as a cleaning solvent called TCE, from groundwater.
• Trichloroethylene (TCE)
• Cleaner Water


  • Another challenge is the removal of salt or metals from water.
  • A deionization method using electrodes composed of nano-sized fibers shows promise for reducing the cost and energy requirements of turning salt water into drinking water.