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Joyce Lee

on 12 February 2015

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Transcript of Nanotechnology

Nuclear Weapons
Disadvantage of Nanotechnology
Nanotechnology is science, engineering, and technology conducted at the Nanoscale, which is about 1 to 100 nanometers.
Titanium dioxide (TiO2) nanoparticles
Beneficial effects:
Blocking ultraviolet light in sunlight
Products with Nanotechnology
Clothing :
Help repel water making the clothing stain-resistant and cause water to bead on the surface
Bullet proof jackets
Already used in clothing to eliminate bad odours
Products with nanotechnology
Scratch-resistant coatings:
Made the coatings more effective, increasing resistance to chipping and scratching.
Also used in car and eyeglass lenses.
The study and application of
extremely small things
and can be used across all the othe
r science fields, such as
chemistry, biology, physics, materials science, and engineering.
Make cars lighter and durable/safer
Improve engine efficiency and fuel consumption
Provide safer environmental parts for fuel powered cars.
Yokohama has developed a tired called ADVAN Sport that uses a nanotech-enabled tread compound to help the tires grip the road
Nanotechnology in future
Products with Nanotechnology
Medical Robots
Smart Drugs
History of Nanotechnology
1,600 year old Goblet shows that the Romans were nanotechnology pioneers
History of Nanotechnology

Richard Feynman discovered nanotechnology
K. eric Drexler popularize the term "nanotechnology"
Two major developments: the birth of
cluster science
and the invention of the
scanning tunneling microscope (STM)
Remove contaminants from the environment such as polychlorinated biphenyls and dioxins from industrial sites
Working principle
At the Nanoscale, materials take on
unusual properties
Products of Nanotechnology
Self-cleaning glass:
Make use of UV radiation from light to break down dirt.
When water makes contact with the glass, it spreads across the glass evenly, which helps wash the glass clean.
Reflect or absorb cancer-causing ultraviolet light
Antimicrobial bandages:
Manufacture antibacterial bandages using nanoparticles of silver
Silver ions smothers harmful cells, killing them
Nanotechnology in Drugs
Negative effects:
Reducing beneficial bacteria.
Invented to inject medicine
more directly to the diseased cell while reducing the damage to the cells around it
Thank you for listening! :)
Gray Goo
Fun Facts About Nanotechnology
Invisibility Cloak
Fun facts about nanotechnology
Bulletproof business suit
Fun facts about nanotechnology
Spiderman Rescue Team
Smart drugs
Fun facts about nanotechnology
Full transcript