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...
![Page 1: Introduction to Nanotechnology. Nanoscale The scale of materials considered nanotechnology are between one and one hundred nanometers or nm. 1 nanometer.](https://reader035.fdocuments.in/reader035/viewer/2022081512/56649f445503460f94c64966/html5/thumbnails/1.jpg)
Introduction to Nanotechnology
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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
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Goals of Nanotechnology
Strength of StructuresSpace Industry and Development
Clean EnergyDefense Systems
MedicalWater Filtration
…and Much More!
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What is Nanotechnology?
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Arranging Atoms(Carbon)
• 1 way---diamonds• 2 way---graphite• 3 random way---soot
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Carbon Nanotubes
• Carbon 60• Bucky ball design• Strength in numbers
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So Small…
• Surface area actually becomes larger compared to its volume
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Possibilities:Electrostatic Self Assembly (ESA)
• Self-regeneration• Building up piece by piece
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Medical
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Medical
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AstroMedica
• Hydroxi-appetite– Nano-material human bone design
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Nanorobotics
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Nanorobotics
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Solar Energy
Copying Lessons of Nature
Photosynthesis Photovoltaics
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Solar Panels
Plastic PolymersUniversity of California-Berkeley
Experiments with polymer-based solar cells-active longer
-more productive-higher energy levels
-lightweight-cheaper
-less fragile
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Computer Technology
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Technology
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Todays Uses of Nanotechnology (cont’d)
• All around us– sunscreen
– rechargeable batteries– clothing stain repellants
– computer chips– cosmetics
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Todays Uses of Nanotechnology (cont’d)
– bottles– bike frames– -automotive– tennis balls– toothpaste
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Impacts
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Risks of Nanotechnology
Material construction deterioration– Heavy loading
Technology advancing at very rapid pace
Risk vs.
Reward?
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Other Risks
• Very dangerous health concerns– Can enter body and break through barriers • Even at cellular level
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Possible Impacts
Global WarmingDiseaseCleaner Water
Optics
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The Future?
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Why this is important to teach
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