Nano technology - A overview
Nano technology - A overview
Published on: Mar 3, 2016
Transcripts - Nano technology - A overview
Presented By – Mast. Chetan Jaganure
Mast. Mithilesh Bhat.
Institute – Bapuji Salunkhe Institute of Engineering and Technology.
Department of Mechanical Engineering
National level paper presentation - 2015
• Study of manipulating matter on an nano scale.
• Nanotechnology refers to the constructing and
engineering of the functional systems at very nano
level or we can say at atomic level rather even
small than that.
• Concept was presented in 1959 by the famous
professor of physics Dr.Richard P.Feynman.
• Invention of the scanning tunneling
microscope in 1981 and the discovery of
fullerene(C60) in 1985 lead to the emergence
• The term “Nano-technology" had been coined
by Norio Taniguchi in 1974.
How Small Is Nanoscale?
A nanometer is…
one billionth of a meter
DNA Sample: Approx. 2 nm Human Hair: Approx. 1x105 nm
WHY Micro to Nano ?
• Things at atomic level or even at smaller
level do not follow classical mechanics so
quantum mechanics theory evolved.
• For future technology properties such
as compactness, high strength to weight
ratio, light in weight, etc. were required
which were fulfilled by nano materials.
Who Cares About Nanotechnology ?
We All Should Care!
– Because it can bring revolution in the current
industrialization and manufacturing processes.
Tools & Technology
• There are several important modern developments.
– The atomic force microscope (AFM).
– The Scanning Tunneling Microscope (STM) are
scanning probes that launched nanotechnology.
• Zinc oxide:
– Dirt repellent, hydrophobic (fabrics)
• Silver ion:
– Healing property (ointments, )
• Aluminum silicate:
– Scratch resistance (Paint, ceramic,paper)
• Gold ion:
– Chip fabrication, drug delivery.
With NT, we can create
unique materials and
become a billion
times faster and a
almost no cost
End of Illnesses
(i.e. cancer, heart
Immunity (i.e. aids,
(i.e. change your
– Loss of jobs (in manufacturing, farming, etc)
– Carbon Nanotubes could cause infection of lungs
– Atomic weapons could be more accessible and destructive
– Sight of human (chemical warfare)
– Presently, nanotechnology is very expensive and developing
it can cost you a lot of money
Everyday applications –
• Nanoscale additives for baseball bats, tennis rackets, motorcycle helmets,
automobile bumpers lightweight, stiff, durable, and resilient.
• Cosmetic products (creams and lotions) cleansing; absorption;
• Nanocomposites in food container carbon dioxide leakage out of
• Growth of bacteria food fresher and safer, longer
Nano Transistors (Si replaced by CNT) Nano Diodes
OLED (Organic Light Emitting Diode) Quantum Computers
Nano computer concept
Nanotechnology in Mobile
Morph, a nanotechnology concept device
developed by Nokia Research Center (NRC)
the University of Cambridge (UK).
• super hydrophobic making it extremely dirt repellent.
• charge itself by nanowire grass
• Nanoscale mesh of fibers allows to Bent into any number of conceivable shapes.
Fuel Cells Solar Cells
Addition of nano-sized components to
conventional materials to improve
Ex. Some clothing manufacturers are making
water and stain repellent clothing using nano-
sized whiskers in the fabric that cause water to
bead up on the surface.
Water droplet on Lotus leaf
Water droplet on fabric
Possibilities for the future
Possible to manufacture lighter, stronger, and programmable
require less energy to produce than conventional material
and that promise greater fuel efficiency in land
transportation, ships, aircraft, and space vehicles.
•The future of nanotechnology could very well include the use
•These nanorobots have the potential to take on human tasks
as well as tasks that humans could never complete.
• Quantum Tunneling
Nanobots because of their replicating behavior can be a big threat.