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Nanoscience What Is It?

Nanoscience What Is It?. What Makes Nanoscience so Important?. Physics. Engineering. Chemistry. Molecular Biology. Materials Science. Nanoscience. incorporates many disciplines. Nanoparticle Properties. size. Melting/Boiling Point. shape. composition. Reactivity. structure.

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Nanoscience What Is It?

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  1. NanoscienceWhat Is It? What Makes Nanoscience so Important?

  2. Physics Engineering Chemistry Molecular Biology Materials Science Nanoscience incorporates many disciplines

  3. Nanoparticle Properties size Melting/Boiling Point shape composition Reactivity structure bonding

  4. Challenges Nanoparticle properties depend on… Size Shape Composition

  5. Challenges Professor David Goldhaber-Gordon, Department of Physics, Stanford University

  6. Atomic Force Microscopy sharp tip cantilever AFM measures and images the topography of surface. The deflection of the cantilever is proportional to height of surface feature.

  7. Nanoscience “Just wait—the 21st century is going to be incredible. We are about to be able to build things that work on the smallest possible length scales, atom by atom. These nanothings will revolutionize industries and our lives.” --- Richard Smalley, 1999

  8. Nanoscience Ethical Problems What happens when engineered nanoparticles are found to have unexpected negative side effects?

  9. Nanoscience Ethical Problems How should we approach the privacy issues that accompany use of nanoparticle applications?

  10. Making Connections • What is meant by saying that nanoscale science is interdisciplinary? • What are the factors that affect the properties of materials at the nanoscale? • How is the atomic force microscope used to image nanoparticles? • What properties do you think are most changed at the nanoscale? • How do you think nano materials are fabricated?

  11. Module Flow Chart Lesson 1.1 What is Nanoscience? What is Nanoscience? Examine and Compare size: macro, micro, sub-micro (nano) SI prefixes Lesson 1.2 What Makes Nanoscience so Different? What makes Nanoscience so different? Compare Newtonian and Quantum Chemistry Regimes as they relate to nanoscale science Lesson 1.3 What Makes Nanoscience so Important? Interdisciplinary science The development of new technologies and instrumentation applications whose risk and benefits have yet to be determined Poster Assessment Students will further investigate the essential question that they have considered throughout the module: How and why do the chemical and physical properties of nanosamples differ from those of macrosamples? Lesson 2.1Extendable Solids Lesson 2.2Extendable Solids: Reactivity, Catalysis, Adsorption Lesson 2.3 Extendable Structures: Melting Point, Color Conductivity Lesson 3.1 Carbon Chemistry Lesson 3.2 Fullerenes and Nanotubes

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