The Big Deal about Small Science: Intro to Nano
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Transcript of The Big Deal about Small Science: Intro to Nano
The Big Deal about Small Science: Intro to Nano
Dr. Julie DillemuthCNS-UCSB Education Director
NSF SES 05-31184
What do you know about nanotechnology?
2009: 68% of Americans have heard “just a little” or “nothing at all” about nanotechnology
(75% in 2008)
(source: Woodrow Wilson Center Project on Emerging Nanotechnologies, www.nanotechproject.org)
Nanotechnology is still an emerging technology
1000+ consumer productsSource: nanotechproject.org
A day in the life…with nano
Nano is SMALL…• 1 billionth of a meter
Nano Scale
Nano is BIG…• $18.2 billion global industry (2008) (Lux Research)• $1.5 billion for R&D in 2009 US National Nanotechnology
Initiative (NNI)
DNA Water
=2.5 nanometers =0.5 nanometer =1 nanometer
1) Scale: definition “1-100 nanometers”
2) Things get wacky at the nanoscale! - different properties than regular-size- surface area to volume ratio is huge - some forces stronger than others
3) Controlling matter: making materials, devices, machines
Three key things about nanotechnology
EXAMPLE:Nano gold:
- not ‘gold’ color- melts at room
temp
An abacus made ofmolecules
Manipulating MatterScanning Electron Microscopes• Rapid, real-time imaging• Capable of measuring features as
small as 20 nm• Easy to use!
Atomic Force Microscopes• Able to view single molecules • Capable of measuring features as
small as 1 nm and assembling molecules
• Very high resolution images
Chemistry
Physics
Biology
MaterialsScienceNanotechnology: Where sciences converge!
• Information Technology
• Medicine and Pharmaceuticals
• Environment
• Consumer goods
• Energy
Application Areas of Nanotechnology
Today The FUTURE
Smaller Silicon Chips
Sunscreens, cosmetics
Fabrics
Sporting goods
1000+ consumer goods
Application Areas: how is nanotech USED?
Medicine: diagnosis, treatment
Energy: solar, batteries
Clean water
Environmental clean-up
What’s different between these 2 columns?