nanoscale science and engineering. what is nanoscale science and engineering? engineering at the...
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Nanoscale Science
and Engineering
What is Nanoscale Science and Engineering?
Engineering at the nanoscale is called Nanotechnology!
How small is a nanometer?
MACRO
meter
centimeter
millimeter
All these are still visible with your eyes.
MICRO
Nanoscale objects are 1,000 times smaller!!!
micrometer(One-millionth of a
meter)
6-8 µm
These are smaller than you can see.
Viruses3-50 nm
DNA2.5 nm
Atoms<1 nm
A nanometer is one billionth of a meter!!
NANO
1. The nanometer is extremely small.
2. At the nanometer scale, many materials behave differently.
3. We can use this new behavior to make new technologies.
Nanotechnology
“Nano” all around us
Apparel with silver nanoparticles
Tata Nano
Baby gear
Things are different . . .
Size really does matter!
Bulk
Nano
Bulk
Nano
Nanoparticles interact differently with light.
Things are different . . .
Size really does matter!
Depiction of a forest glass shop from Sir John Mandeville's Travels, Dated 1420 – 1450. British Library, London
Nanotechnology in the Middle Ages
Why Do We Care?
Nanotechnology can improve how we live!
Silver nanoparticles are used to kill bacteria in:
•Athletic apparel
•Socks
•Refrigerators
•Storage containers
•Washing machines
Gold nanoshells can target and destroy cancer cells
60-100 nm
“Printing” Nano-solar Panels
Cities could be Power Plants!
Carbon Nanotube
Energy Transportation
Carbon Atoms Rearranged
Carbon Nanotube
Diamond
Coal
Graphite
But what about the risks?
Think Like a Nano Scientist!
This project was supported by the National Science Foundation, NISE Net and OMSI.
Thank you!
1. A red blood cell is found on the nanoscale.
2. DNA is found on the nanoscale.
True or False?
TRUE!
FALSE!
2. Nanotechnology can effect the way we move and produce energy.
1. Things on the nanoscale can be found all around us in nature.
True or False?
TRUE!
TRUE!