American Chemical Society
NCW 2012
Nanotechnology:
The Smallest BIG Idea in Science!
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WHAT IS NANOTECHNOLOGY?
AND
WHY IS IT SUCH A BIG IDEA?
Nanotechnology: Small, Different, New
•
The nanometer is extremely small.
•
At the nanometer scale, materials may
behave differently.
•
We can harness this new behavior to make
new technologies.
Nanometer:
Part of The Metric System
kilometer
km
1,000
1X103
meter
m
1
1X100
millimeter
mm
1/1,000
1X10-3
micrometer
m
1/1,000,000
1X10-6
nanometer
nm
1/1,000,000,000
1X10-9
picometer
pm
1/1,000,000,000,000 1X10-12
Nanometer:
Part of The Metric System
kilometer
km
1,000
meter
m
1
millimeter
mm
1/1,000
micrometer
m
1/1,000,000
nanometer
nm
1/1,000,000,000
picometer
pm
1/1,000,000,000,000
A Nanometer is
Extremely Small.
In the time it takes to read
this sentence, your
fingernails will have grown
approximately one
nanometer (1 nm) in length.
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A Nanometer is Extremely
Small:
If you could paint a gallon of paint one
nanometer thick, how much area would
it cover?
?
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A Nanometer is Extremely
Small:
If you could paint a gallon of paint one
nanometer thick, how much area would
it cover?
A square 1.2 x 1.2
miles or 936 acres!
That is almost 1,000
football fields.
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At the nanometer scale,
materials may behave
differently.
Some of the Characteristics that can change:
Color
Melting point
Strength
Conductivity
Reactivity
Properties at the Nano Scale:
Gold at the Normal Scale
Gold
Gold at the Nano Scale
Nano Gold
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Properties at the Nano Scale:
Aluminum at the Normal Scale
Aluminum at the Nano Scale
Aluminum
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Properties at the Nano Scale:
Carbon at the Normal Scale
Pencil ‘lead’
Carbon at the Nano Scale
Graphene
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Nanotechnology Can Lead to
New Products and Applications.
Where is Nanotechnology Being
Used?
Energy
Wind Turbine blade
Lithium ion batteries
Superconducting power lines
PEM Fuel Cells
Apparel
Nano self-cleaning t-shirt
Nano silver socks
Waterproof hiking shoes
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Nano water shedding swimsuit
15
Sunscreens
Nanosize zinc oxide sunscreens
Clean water
References:
•
This presentation is based on Nano101, a PowerPoint presentation developed for the NISE Network with
funding from the National Science Foundation under Award Numbers 0532536 and 0940143. Any opinions,
findings, and conclusions or recommendations expressed in this report are those of the authors and do not
necessarily reflect the views of the Foundation.”
• NISE Network:
http://www.nisenet.org/
•
Fine Filters: Filtering Solutions for Clean Water
•
http://nanosense.org/activities/finefilters/index.html
•
Information about products and applications
•
http://www.nanotechproject.org/inventories/consumer/