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The World IS Quantized

The World IS Quantized. Quantization. Only certain energies are allowed: D E = hf = hc/ l , where l is a wavelength scale . 10 um = 0.00001 m. 0.1 m. 1 nm = 0.000000001 m. Everything changes at the “nano” scale. Physical Property. Uses.

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The World IS Quantized

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

  2. Everything changes at the “nano” scale Physical Property Uses Mechanicalstrength, toughnesshigh strength, low weight composites Chemicalbonding, reactivitychemical and biological receptors or sensors Thermalinsulators, conductors high temperature or high power applications Electricalconductivity, ductility microelectronics Opticalabsorption, reflectivityhigh bandwidth fibers or waveguides

  3. Quantum Mechanical Calculation of Material Properties

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

  5. The Atomic Force Microscope

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

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

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

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

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

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

  12. Nanofiction Nanotechnology Nanorobots repairing red blood cells R EPORTS Colloidal Nanocrystal Shape and Size Control: The Case of Cobalt Victor F. Puntes, * Kannan M. Krishnan, A. Paul Alivisatos © Quantum Dot Corp. 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. © Vic Olliver www.sciencemag.org SCIENCE VOL 291 16 MARCH 2001 2115 Inside a fluorescently labeled cell Nanoscience

  13. Nanotechnology Nanofiction though the best inventions begin as fictions … Nanoscience

  14. Nanotechnology Nanofiction © Foresight Institute Nanoscience Cumings, UC Berkeley

  15. the Road Towards Nanotechnology Norman Poire, Merrill Lynch

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