Nanotechnology




Introduction 




  • The prefix ‘Nano’ in the word Nanotechnology means billionth (.



  • Nanotechnology is defined as the study and use of structures between 1 nanometer and 100 nanometers in size
  • Nano Tecnology is Introduced by the movie AVENGERS(INFINATE WAR) and the suit name is Mark85.




  • How small is Nano? 




  • Nanotechnology concerns objects that are extremely small, bigger than atoms but smaller than you can see with a light microscope.
  •   



  • Nanotechnology is taken as the scale range to 100 nm.




  • Nano Scale 




  • Nano Scale uses nanometer as the basic unit of measurement and it represents a billionth of a meter or one billionth of a part.
    • One billionth  of meter.
    • Hydrogen atom .04nm.
    • Proteins 1-20nm.
    • Feature size of computer chips 90nm in 2005.
    • Diameter of human hair 10
    • Sugar molecule 1nm.




    Nano Scale Materials 




  • Nano scale materials have feature size less than 100nm utilized in Nano scale structures, devices and systems.




  • Nanoparticles and Structures:



  • In nanotechnology, particle is defined as a small object.



  • The following figure shows gold nanoparticle.




  • Nanowires and Nanotubes:



  • Lateral dimension 1-100nm.



  • Nanowires and nanotubes exhibit novel physical, electronic and optical properties due to two dimensional quantum confinement, structural one dimensionality, and high surface to volume ratio.




  • Bio Nano Material:



  • Biological materials utilized in nanotechnology.




  • Example



  • Proteins, enzymes, DNA, RNA.
  • Proteins structure



  • Synthetic nanomaterial utilized in biomedical application.




  • Example



  • Polymers, carbon nanotubes.




  • Technology Shifts 




  • Size of devices
    • Inches to Microns.
    • Microns to Nanometers.



  • Type of interconnect
    • Rods to Lithowires.
    • Lithowires to Nanowires.



  • Method of fabrication.
    • Hammers to Light.
    • Light to Self-assembly.



  • Largest sustainable system
    • 10to 10
    • 10to 1012 .



  • Reliability
    • Bad to Excellent.
    • Excellent to Unknown.
        




    Applications of Nanotechnology       





    Information Technology



  • Smaller, faster, more energy efficient and powerful computing and other IT- based systems.




  • Energy



  • More efficient and cost effective technologies for energy production- solar cells, fuel cells, batteries, bio-fuels.




  • Medicine



  • Cancer treatment



  • Bone treatment



  • Drug delivery



  • Appetite control



  • Drug development



  • Medical tools



  • Diagnostic tests



  • Imaging



  • Small machines to cure diseases




  • Consumer Goods



  • Foods and beverages
    • Advanced Packaging materials
    • Sensors
    • Lab-on-chips for food quality       
    • Testing



  • Appliances and textiles
    • Stain proof
    • Water proof
    • Wrinkle free textiles          



  • Household and cosmetics
    • Self-cleaning and scratch free products.
    • Paints and better cosmetics.



    Applications of Nanotechnology 




  • Solar cells



  • Computing



  • Clothing



  • Batteries



  • Sporting Goods and Equipment



  • Cars



  • Food and Beverage



  • Environment




  • Solar Cells 




  • Nanotechnology enhancements provide:
  • Improved Efficiency:



  • Novel nanomaterial’s can harness more of the sun’s energy.
  • Lower Costs:



  • Some novel nanomaterial’s can be made cheaper than alternatives.
  • Flexibility:



  • Thin film flexible polymers can be manipulated to generate electricity from the sun’s energy.




  • Computing 

    Faster processing speeds:



  • Miniaturization allows more transistors to be packed on a computer chip.
  • More memory:



  • Nano sized features on memory chips allow more information to be stored.
  • Thermal management solutions for electronics:



  • Novel carbon-based nano materials carry away heat generated by sensitive electronics 



  • Batteries 

  • Higher energy storage capacity and quicker recharge:
    • Nanoparticles or nanotubes on electrodes provide high surface area and allow more current to flow.
    Longer life:



  • Nanoparticles on electrodes prevent electrolytes from degrading so batteries can be recharged over and over.
  • A safer alternative:



  • Novel nano-enhanced electrodes can be less flammable, costly and toxic than conventional electrodes.




  • Sporting Goods and Equipment 

    Increased strength of materials:



  • Novel carbon nano fiber or nanotube based nano composites give the player a stronger swing.
  • Lighter weight materials:



  • Nano composites are typically lighter weight than their macro scale counterparts.
  • More perfect fabrication of materials:



  • Controlling material characteristics at the nano scale helps ensure that a ball flies in the direction of applied force and/ or reduces the chance for fracture of equipment.




  • Comments

    Post a Comment

    Popular Posts