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NANOTECHNOLOGY
Page 2


NANOTECHNOLOGY
Topics of the day
• Introduction
• Defination
• History
• Timeline
• Tools & techniques
? Carbon nanotubes
? Nanorods
? Nanobots
• Approaches used
? Top-down
? Bottom-up
• Materials used
• Application
? Drugs
? Fabrics
? Mobiles
? Electronics
? Computers
? Other uses
• Nanotechnology in INDIA
• Possiblities for future
• Pitfalls of nanotechnology.
Page 3


NANOTECHNOLOGY
Topics of the day
• Introduction
• Defination
• History
• Timeline
• Tools & techniques
? Carbon nanotubes
? Nanorods
? Nanobots
• Approaches used
? Top-down
? Bottom-up
• Materials used
• Application
? Drugs
? Fabrics
? Mobiles
? Electronics
? Computers
? Other uses
• Nanotechnology in INDIA
• Possiblities for future
• Pitfalls of nanotechnology.
NANO & TECHNOLOGY
• A Nanometre is a unit of length in the metric
system, equal to one billionth of a metre(10
-9
).
• Technology is the making, usage, and
knowledge of tools, machines and techniques, in
order to solve a problem or perform a specific
function.
Page 4


NANOTECHNOLOGY
Topics of the day
• Introduction
• Defination
• History
• Timeline
• Tools & techniques
? Carbon nanotubes
? Nanorods
? Nanobots
• Approaches used
? Top-down
? Bottom-up
• Materials used
• Application
? Drugs
? Fabrics
? Mobiles
? Electronics
? Computers
? Other uses
• Nanotechnology in INDIA
• Possiblities for future
• Pitfalls of nanotechnology.
NANO & TECHNOLOGY
• A Nanometre is a unit of length in the metric
system, equal to one billionth of a metre(10
-9
).
• Technology is the making, usage, and
knowledge of tools, machines and techniques, in
order to solve a problem or perform a specific
function.
Defination
• Nanotechnology is the
study of manipulating
matter on an atomic scale.
• Nanotechnology refers
to the constructing and
engineering of the
functional systems at very
micro level or we can say at
atomic level.
• A Nanometer is one
billionth of a meter,
roughly the width of three
or four atoms. The average
human hair is about
25,000 nanometers wide.
Page 5


NANOTECHNOLOGY
Topics of the day
• Introduction
• Defination
• History
• Timeline
• Tools & techniques
? Carbon nanotubes
? Nanorods
? Nanobots
• Approaches used
? Top-down
? Bottom-up
• Materials used
• Application
? Drugs
? Fabrics
? Mobiles
? Electronics
? Computers
? Other uses
• Nanotechnology in INDIA
• Possiblities for future
• Pitfalls of nanotechnology.
NANO & TECHNOLOGY
• A Nanometre is a unit of length in the metric
system, equal to one billionth of a metre(10
-9
).
• Technology is the making, usage, and
knowledge of tools, machines and techniques, in
order to solve a problem or perform a specific
function.
Defination
• Nanotechnology is the
study of manipulating
matter on an atomic scale.
• Nanotechnology refers
to the constructing and
engineering of the
functional systems at very
micro level or we can say at
atomic level.
• A Nanometer is one
billionth of a meter,
roughly the width of three
or four atoms. The average
human hair is about
25,000 nanometers wide.
History
• The first ever 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
of nanotechnology.
• The term “Nano-technology" had
been coined by Norio Taniguchi in
1974
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FAQs on PPT - Nanotechnology - Civil Engineering (CE)

1. What is nanotechnology?
Nanotechnology is a field of science and technology that deals with the manipulation and control of matter at the nanoscale, which is approximately 1 to 100 nanometers. It involves studying and manipulating materials at the atomic and molecular level to create new materials and devices with unique properties and functionalities.
2. How is nanotechnology used in the medical field?
Nanotechnology has a wide range of applications in the medical field. It can be used for targeted drug delivery, where nanoparticles are designed to specifically target diseased cells and deliver medication directly to them. Nanotechnology also enables the development of sensors and diagnostic tools with increased sensitivity, allowing for better and faster detection of diseases. Additionally, nanomaterials can be used in tissue engineering to create scaffolds that promote cell growth and regeneration.
3. What are the potential risks associated with nanotechnology?
While nanotechnology has many benefits, there are also potential risks that need to be considered. One concern is the toxicity of certain nanoparticles, as their small size and properties may have harmful effects on human health and the environment. Another risk is the potential for unintended consequences, such as the accumulation of nanoparticles in ecosystems or the development of new types of pollution. It is important to conduct thorough research and risk assessments to ensure the safe and responsible use of nanotechnology.
4. Can nanotechnology be used in renewable energy?
Yes, nanotechnology plays a significant role in renewable energy applications. It can be used to improve the efficiency of solar cells by enhancing light absorption and charge separation. Nanomaterials like graphene and carbon nanotubes have shown promise in developing more efficient and cost-effective energy storage devices, such as batteries and supercapacitors. Nanotechnology also enables the development of more efficient catalysts for fuel cells and the production of hydrogen from renewable sources.
5. What are the current limitations of nanotechnology?
Although nanotechnology has made significant advancements, it still faces certain limitations. One limitation is the high cost of manufacturing nanoscale materials and devices, which hinders their widespread adoption. Another challenge is the scalability of nanotechnology, as it can be difficult to replicate lab-scale successes in large-scale production. Additionally, the potential environmental and health risks associated with nanomaterials need to be carefully addressed. Research and development efforts are ongoing to overcome these limitations and unlock the full potential of nanotechnology.
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