NANO TECHNOLOGY

• Feynman, an American Physicist discussed, “There’s Plenty of Room at the Bottom”.
• Feynman - nanoscience
• Atalla and Kahng - fabricated the first MOSFET
• Taniguchi, coined the term "nanotechnology” to describe semiconductor processes such as film deposition and ion beam milling exhibiting characteristic control on the order of a nanometer.
• Binnig and Rohrer -invention of Scanning Tunneling Microscope, an instrument used for imaging surfaces at the atomic level.
• Dexler - Publication of the book Engines of Creation: The Coming Era of Nanotechnology
• Iijima - discovery of carbon nanotube
• Korean Researchers– The discovery of 3nm MOSFET, the worlds’ smallest nanoelectronic device was created
• In Mesopotamia, nanoparticles were used for creating a glittering effect on the surface of pots.
• In Rome, Lycurgus cup is made of a glass that changes colour when light gleamed through it
• “ Maya Blue ” contains nanopores to create an environmentally stable pigment.
• Damascus steel swords contain oriented nanoscale wire-and-tube-like structures
• NANOTECHNOLOGY - The engineering of functional systems at the molecular scale.
• NANOTECHNOLOGY - It is a Hybrid Science combining Engineering, Chemistry and to a certain extent Biology.
• Nanoscience is the study of phenomena and manipulation of materials at atomic, molecular and macromolecular scales,
• Nanotechnologies are the design, characterization, production and application of structures, devices and systems by controlling shape and size at nanometre scale.
• one nanometer is a billionth of a meter, or 10-9 of a meter.
• A sheet of newspaper is about 100,000 nanometers thick
• TOP-DOWN - Etching a block of material down to the desired shape
• TOP-DOWN - Chips and processors
• BOTTOM-UP - Building materials atom by atom like lego
• Persistence - Longevity of particles in the environment and body are unknown