2. Group Members
• Chamod Shashika Senavirathna IT 16078956
• Budharaka Edirisinghe IT 16228740
• Chamod Gayathra Paranavithana IT 16226692
3. What is Nanotechnology ?
“Nano Technology is the art and the science of
manipulating the matter at the nanoscale”
A Nanometer is a unit of length in the metric system, equal to one
billionth of meter.
Technology is the making usage and knowledge of tools, machines
and techniques in Oder to solve a problem or perform a specific
function .
5. History of nanotechnology
The American physicist Richard Feynman lectured, "There's
Plenty of Room at the Bottom," at an American Physical Society
meeting at Caltech on December 29, 1959, which is often held
to have provided inspiration for the field of nanotechnology.
• 2000 years ago- sulfide nanocrystals uses by Greeks and romans to dye hair.
• 1000 yeas ago (middle ages) -gold nanoparticles of different sizes use to produce different
colors in stained glass windows .
• 1974- “Nanotechnology"-taniguchi uses the tem nanotechnology for the first time.
• 1981 -IBM develops scanning tunneling microscope. This microscope evolved to allow the
manipulation of individual atoms and molecules in the field of nan technology.
• 1991-carbon nanotube was discovered by s.lijima.
6. Need of Nano technology
• Allow the placement of small structures
placed with precision simplicity and low
cost.
• Leads to economic grow .
• enhances national security.
• leads to job creation.
7. Applications of Nano technology
• Carbon Nano tubes
• medicine
• Information technology
• Nano robots
• Energy
8. Carbon Nano Tubes
Carbon nanotubes (CNTs) are allotropes of carbon with a cylindrical
nanostructure. Nanotubes have been constructed with length-to-diameter
ratio of up to 132,000,000:1, significantly larger than for any other material
10. Use of Nanotechnology in
information technology
The impact of nanotechnology on information technology revolves around two distinct areas
1) the use of nanomaterials to create smaller, faster, more efficient memory for use in
computers.
2) the replacement of current computer devices for devices with computers using advanced
quantum computer technology. Nanotechnology is the development and use of techniques
to study physical phenomena and construct structures in the physical size range of 1-100
nanometers (nm), as well as the incorporation of these structures into applications.
11. N
A
N
O
R
O
B
O
T
S
Nanorobots (nanobots or nanoids) are typically devices ranging in size from
0.1-10 micrometers and constructed of nanoscale or molecular components.
As no artificial non-biological nanorobots have so far been created, they
remain a hypothetical concept at this time.
12. Nanotechnology in Energy
* Nanotechnologies provide the potential to enhance energy efficiency
across all branches of industry and to economically leverage renewable
energy production through new technological solutions and optimized
production technologies. Nanotechnology innovations could impact each
part of the value-added chain in the energy sector.
13. Advantages of Nano technology
• Less pollution
• low production cost
• mass production in food & consumables
• Technology itself
• war
• Electricity
14. Disadvantages of nanotechnology
• Health
• Mass production
• War
• Privacy risks
• Some studies detected possible cancer
causing properties of carbon nanotubes
15. Conclusion
Nanotechnology is the development and engineering of devices so small that they are measured
on a molecular scale. This emerging field involves scientists from many different disciplines,
including physicists, chemists, engineers, information technologists, and material scientists, as
well as biologists. Nanotechnology is being applied to almost every field imaginable, including
electronics, magnetics, optics, information technology, materials development and biomedicine.
