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Nanotechnology bears the promise of engineering at an atomic scale--of assembling atoms in arrangements that are completely unnatural, thereby creating materials with properties that have never been seen before. This may sound like science fiction, but it has been going on for more than 30 years, since the invention of Molecular Beam Epitaxy (MBE). MBE provides a way of growing a block of material one sheet of atoms at a time. By mixing different types of atoms in various combinations, it is possible to "tune" the properties of the resulting material. For example, the laser diode in your CD player is probably made from silicon. It shines a particular wavelength of light based on the energy gap between the conduction and valence bands in silicon. That same laser diode could be "tuned" to emit a different wavelength by building it with a new material engineered to have a different band gap.

MBE is just one technique for building materials on an atomic scale. Many other techniques are also under investigation, including dragging atoms via a Scanning Tunneling Microscope (STM) tip, and Self-Assembled Monolayers (SAM).

Learn more about material science from the resources available on this site, listed below.

More information on Material science can be found here.

Online Presentations (221-240 of 340)

  1. Introduction: molecular dynamics simulations

    This resource has a 10.0 Ranking

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    09 Jan 2008 | Online Presentations | Contributor(s): Alejandro Strachan

    This short presentation will describe the idea behind MD simulations and demonstrate its use in real applications.

    https://nanohub.org/resources/3676

  2. Nanomedicine for Treating Organ Failure

    This resource has a 6.8 Ranking

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    02 Jan 2008 | Online Presentations | Contributor(s): Thomas J. Webster

    Nanotechnology has begun to revolutionize numerous science and engineering fields. The use of nanotechnology in medicine has been termed nanomedicine. This presentation will highlight recent …

    https://nanohub.org/resources/3766

  3. Excellence in Computer Simulation: Computational Materials

    This resource has a 7.7 Ranking

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    20 Dec 2007 | Online Presentations | Contributor(s): Eric Schwegler

    This presentation was one of 13 presentations in the one-day forum, "Excellence in Computer Simulation," which brought together a broad set of experts to reflect on the future of computational …

    https://nanohub.org/resources/3721

  4. Perspectives on Computational Quantum Chemistry

    This resource has a 7.8 Ranking

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    20 Dec 2007 | Online Presentations | Contributor(s): Martin P. Head-Gordon

    This presentation was one of 13 presentations in the one-day forum, "Excellence in Computer Simulation," which brought together a broad set of experts to reflect on the future of computational …

    https://nanohub.org/resources/3726

  5. Computational Mathematics: Role, Impact, Challenges

    This resource has a 6.7 Ranking

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    20 Dec 2007 | Online Presentations | Contributor(s): Juan C. Meza

    This presentation was one of 13 presentations in the one-day forum, "Excellence in Computer Simulation," which brought together a broad set of experts to reflect on the future of computational …

    https://nanohub.org/resources/3701

  6. An Experimentalists’ Perspective

    This resource has a 7.3 Ranking

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    19 Dec 2007 | Online Presentations | Contributor(s): Arunava Majumdar

    This presentation was one of 13 presentations in the one-day forum, "Excellence in Computer Simulation," which brought together a broad set of experts to reflect on the future of computational …

    https://nanohub.org/resources/3628

  7. KIST/PU Ligand-functionalized gold nanorods as theragnostic agents

    This resource has a 7.8 Ranking

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    06 Dec 2007 | Online Presentations | Contributor(s): Alexander Wei

    Plasmon-resonant gold nanorods have been examined as multifunctional agents for imaging and photoactivated therapies. Nanorods can be imaged with single-particle sensitivity by two-photon …

    https://nanohub.org/resources/3670

  8. Electrons in Two Dimensions: Quantum Corrals and Semiconductor Microstructures

    This resource has a 9.2 Ranking

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    04 Dec 2007 | Online Presentations | Contributor(s): Eric J. Heller

    The images generated by a scanning tunneling microscope are iconic. Some of the most famous are Don Eigler’s quantum corrals, which reveal not only the guest atoms on a surface but especially the …

    https://nanohub.org/resources/3253

  9. Plastic Deformation at Micron and Submicron Scales

    This resource has a 6.3 Ranking

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    28 Nov 2007 | Online Presentations | Contributor(s): Marisol Koslowski

    Most people experiences the way objects plastically deform on a macroscopic scale. From a car crash to the bending of a paper clip plastic deformation occurs in the form of a smooth flow as a …

    https://nanohub.org/resources/3559

  10. Engineering at the nanometer scale: Is it a new material or a new device?

    This resource has a 6.5 Ranking

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    06 Nov 2007 | Online Presentations | Contributor(s): Gerhard Klimeck

    This seminar will overview NEMO 3D simulation capabilities and its deployment on the nanoHUB as well as an overview of the nanoHUB impact on the community.

    https://nanohub.org/resources/3504

  11. MCW07 Modeling Molecule-Assisted Transport in Nanotransistors

    This resource has a 6.4 Ranking

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    06 Nov 2007 | Online Presentations | Contributor(s): Kamil Walczak

    Molecular electronics faces many problems in practical device implementation, due to difficulties with fabrication and gate-ability. In these devices, molecules act as the main conducting channel. …

    https://nanohub.org/resources/3074

  12. MCW07 Impact of Porphyrin Functional Groups on InAs Gas Sensors

    This resource has a 6.9 Ranking

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    05 Nov 2007 | Online Presentations | Contributor(s): Michael Garcia

    Porphyrin molecules are often used for sensor engineering to improve sensitivity and selectivity to specific analytes. It is important to understand how the porphyrin HOMO-LUMO levels deplete …

    https://nanohub.org/resources/3149

  13. KIST/PU Design and Performance of Bioresponsive Nanocarriers with Tunable Reactivity for Drug and Gene Delivery

    This resource has a 7.4 Ranking

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    23 Oct 2007 | Online Presentations | Contributor(s): Dave Thompson

    Our lab has focused on the development of bioresponsive nanocarriers that are designed to release their cargo upon entry into acidic environments such as those found in cellular endosomes and …

    https://nanohub.org/resources/3391

  14. BME 695N Lecture 12: Introduction to X-ray Photoelectron Spectroscopy and the Examples of Biologically-Relevant Applications

    This resource has a 6.4 Ranking

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    19 Oct 2007 | Online Presentations | Contributor(s): Dmitry Zemlyanov

    With Dmitry Zemlyanov as guest lecturer.

    https://nanohub.org/resources/3413

  15. Energy-level Alignment of Aryl Thiols Chemisorbed on Metal Surfaces: Implications for Molecular Electronic Junctions

    This resource has a 5.9 Ranking

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    27 Sep 2007 | Online Presentations | Contributor(s): Roger D. van Zee

    Charge-transport through the interface is a key part of the behavior of any electronic junction. One interface property important to molecular-electronic junctions is the energetic mismatch between …

    https://nanohub.org/resources/3272

  16. MSE 376 Introductory Lecture

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    20 Sep 2007 | Online Presentations | Contributor(s): Mark Hersam

    https://nanohub.org/resources/3267

  17. MCW07 Electronic Level Alignment at Metal-Molecule Contacts with a GW Approach

    This resource has a 8.9 Ranking

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    05 Sep 2007 | Online Presentations | Contributor(s): Jeffrey B. Neaton

    Most recent theoretical studies of electron transport in single-molecule junctions rely on a Landauer approach, simplified to treat electron-electron interactions at a mean-field level within density …

    https://nanohub.org/resources/3094

  18. Pulsed Laser Deposition of Thin Films

    This resource has a 6.0 Ranking

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    02 Aug 2007 | Online Presentations | Contributor(s): Josh Kaufman

    Thin metal films have many applications from optical limiters to nanocircuits. Methods for fabricating these films differ in theory and complexity. Pulsed Laser Deposition (PLD) is a popular method …

    https://nanohub.org/resources/3013

  19. Victor Veselago Interview on Nanotechnology and Photonics

    This resource has a 6.6 Ranking

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    26 Jun 2007 | Online Presentations | Contributor(s): Victor G. Veselago, Phillip Fiorini

    Nanotechnology and photonics interview with Phillip Fiorini.

    https://nanohub.org/resources/2796

  20. Selective Silicon Epitaxy Seen at the Nanometer Scale

    This resource has a 5.8 Ranking

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    14 Jun 2007 | Online Presentations | Contributor(s): Matthew Mark Sztelle

    The presenter introduces NEMS (nanoelectromechanical systems) and STM (Scanning Tunneling Microscopy and continues to present material on Selective Silicon Epitaxy seen at the Nanometer ScaleMatthew …

    https://nanohub.org/resources/2810

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