1. The World IS Quantized 1 nm = 0.000000001 m 10 um = 0.00001 m 0.1 m Only certain energies are allowed:  E = hf = hc/, where  is a wavelength scale

2. Everything changes at the “nano” scale Mechanical strength, toughnesshigh strength, low weight composites Chemical bonding, reactivitychemical and biological receptors or sensors Thermal insulators, conductorshigh temperature or high power applications Electrical conductivity, ductilitymicroelectronics Optical absorption, reflectivityhigh bandwidth fibers or waveguides Physical PropertyUses

3. Quantum Mechanical Calculation of Material Properties

4. Atomic Resolution Microscopes the AFM, STM, TEM, and SEM

5. The Atomic Force Microscope

6. “Scanning Probe Microscopes” Atomic Force Microscope Scanning Tunneling Microscope most sensitive most versatile “tapping”

7. Electron Microscopes the Scanning Electron Microscope the Transmission Electron Microscope thin samples only most versatile

8. Microscope Soup AFM SEM TEM STM NSOM EFM the ability to “see” atoms & molecules

9. IBM Research, 1992 Beyond Seeing -- Moving, and Building One Atom 1 nanometer = 1 nm

10. Beyond Seeing -- Moving, and Building “Nano-Lithography”

11. What is Nanotechnology? Jim Heath, UCLA © Foresight Institute tech·nol·o·gy n 1. The application of science, especially to industrial or commercial objectives

12. Nanoscience Nanofiction © Vic Olliver Nanorobots repairing red blood cells Nanotechnology © Quantum Dot Corp. Inside a fluorescently labeled cell R EPORTS www.sciencemag.orgSCIENCEVOL 29116 MARCH 2001 2115 Colloidal Nanocrystal Shape and Size Control: The Case of Cobalt Victor F. Puntes, * Kannan M. Krishnan, A. Paul Alivisatos We show that a relatively simple approach for controlling the colloidal synthesis of anisotropic cadmium selenide semiconductor nanorods can be extended to the size-controlled preparation of magnetic cobalt nanorods as well as spher- ically shaped nanocrystals. This approach helps define a minimum feature set needed to separately control the sizes and shapes of nanocrystals. The resulting cobalt nanocrystals produce interesting two- and three-dimensional super- structures, including ribbons of nanorods.

13. Nanoscience though the best inventions begin as fictions … NanofictionNanotechnology

14. Nanoscience NanofictionNanotechnology © Foresight Institute Cumings, UC Berkeley

15. the Road Towards Nanotechnology Norman Poire, Merrill Lynch