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

2. What Makes Nanoscience so Important? © McREL 2009 2 incorporates many disciplines Chemistry Engineering Physics Molecular Biology Materials Science Nanoscience

3. What Makes Nanoscience so Important? © McREL 2009 3 Nanoparticle Properties size

4. What Makes Nanoscience so Important? © McREL 2009 4 Composition ShapeSize Nanoparticle properties depend on… Challenges

5. What Makes Nanoscience so Important? © McREL 2009 5 Professor David Goldhaber-Gordon, Department of Physics, Stanford University Challenges

6. What Makes Nanoscience so Important? © McREL 2009 6 AFM measures and images the topography of surface. The deflection of the cantilever is proportional to height of surface feature. sharp tip cantilever Atomic Force Microscopy

7. What Makes Nanoscience so Important? © McREL 2009 7 “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 Nanoscience

8. What Makes Nanoscience so Important? © McREL 2009 8 Ethical Problems What happens when engineered nanoparticles are found to have unexpected negative side effects? Nanoscience

9. What Makes Nanoscience so Important? © McREL 2009 9 Ethical Problems How should we approach the privacy issues that accompany use of nanoparticle applications? Nanoscience

10. What Makes Nanoscience so Important? © McREL 2009 10 1.What is meant by saying that nanoscale science is interdisciplinary? 2.What are the factors that affect the properties of materials at the nanoscale? 3.How is the atomic force microscope used to image nanoparticles? 4.What properties do you think are most changed at the nanoscale? 5.How do you think nano materials are fabricated? Making Connections

11. What Makes Nanoscience so Important? © McREL 2009 11 Module Flow Chart 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 Lesson 3.1 Carbon Chemistry Lesson 1.1 What is Nanoscience? What is Nanoscience? Examine and Compare size: macro, micro, sub- micro (nano) SI prefixes Lesson 2.2 Extendable Solids: Reactivity, Catalysis, Adsorption Lesson 2.3 Extendable Structures: Melting Point, Color Conductivity Lesson 3.2 Fullerenes and Nanotubes Lesson 2.1 Extendable Solids 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?