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The Big Deal about Small Science: Intro to Nano

NSF SES 05-31184. The Big Deal about Small Science: Intro to Nano. Dr. Julie Dillemuth CNS-UCSB Education Director. 2009: 68% of Americans have heard “ just a little ” or “ nothing at all ” about nanotechnology (75% in 2008)

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The Big Deal about Small Science: Intro to Nano

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  1. NSF SES 05-31184 The Big Deal about Small Science: Intro to Nano Dr. Julie Dillemuth CNS-UCSB Education Director

  2. 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 What do you know about nanotechnology?

  3. A day in the life…with nano 1000+ consumer products Source: nanotechproject.org

  4. DNA Water Nano Scale • Nano is SMALL… • 1 billionth of a meter =2.5 nanometers =0.5 nanometer =1 nanometer • Nano is BIG… • $18.2 billion global industry (2008) (Lux Research) • $1.5 billion for R&D in 2009 US National Nanotechnology Initiative (NNI)

  5. Three key things about nanotechnology • 1)Scale: definition “1-100 nanometers” • 2) Things get wacky at the nanoscale!- differentpropertiesthan regular-size • - surfacearea to volume ratio is huge - some forces stronger than others • 3) Controlling matter: making materials, devices, machines • EXAMPLE: • Nano gold: • not ‘gold’ color • melts at room temp An abacus made ofmolecules

  6. Manipulating Matter • Scanning 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

  7. Biology Materials Science Nanotechnology: Where sciences converge! Physics Chemistry

  8. Application Areas of Nanotechnology • Information Technology • Medicine and Pharmaceuticals • Environment • Consumer goods • Energy

  9. Application Areas: how is nanotech USED? The FUTURE Today Smaller Silicon Chips Sunscreens, cosmetics Fabrics Sporting goods 1000+ consumer goods Medicine: diagnosis, treatment Energy: solar, batteries Clean water Environmental clean-up What’s different between these 2 columns?

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