Introduction to Nanotechnology. Nanoscale The scale of materials considered nanotechnology are...
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Transcript of Introduction to Nanotechnology. Nanoscale The scale of materials considered nanotechnology are...
Introduction to Nanotechnology
NanoscaleThe scale of materials considered nanotechnology are
between one and one hundred nanometers or nm.
1 nanometer is 10 -9 meters, or 1/1,000,000,000 m, or 1 billionth of a meter
Scale; one human hair is ~ 80,000 nm
Goals of Nanotechnology
Strength of StructuresSpace Industry and Development
Clean EnergyDefense Systems
MedicalWater Filtration
…and Much More!
What is Nanotechnology?
Arranging Atoms(Carbon)
• 1 way---diamonds• 2 way---graphite• 3 random way---soot
Carbon Nanotubes
• Carbon 60• Bucky ball design• Strength in numbers
So Small…
• Surface area actually becomes larger compared to its volume
Possibilities:Electrostatic Self Assembly (ESA)
• Self-regeneration• Building up piece by piece
Medical
Medical
AstroMedica
• Hydroxi-appetite– Nano-material human bone design
Nanorobotics
Nanorobotics
Solar Energy
Copying Lessons of Nature
Photosynthesis Photovoltaics
Solar Panels
Plastic PolymersUniversity of California-Berkeley
Experiments with polymer-based solar cells-active longer
-more productive-higher energy levels
-lightweight-cheaper
-less fragile
Computer Technology
Technology
Todays Uses of Nanotechnology (cont’d)
• All around us– sunscreen
– rechargeable batteries– clothing stain repellants
– computer chips– cosmetics
Todays Uses of Nanotechnology (cont’d)
– bottles– bike frames– -automotive– tennis balls– toothpaste
Impacts
Risks of Nanotechnology
Material construction deterioration– Heavy loading
Technology advancing at very rapid pace
Risk vs.
Reward?
Other Risks
• Very dangerous health concerns– Can enter body and break through barriers • Even at cellular level
Possible Impacts
Global WarmingDiseaseCleaner Water
Optics
The Future?
Why this is important to teach