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Molecular Interferometry
Online Presentations | 26 Jun 2007 | Contributor(s):: David D. Nolte
While single-molecule detection through fluorescence has now become common-place, there has been no analogous single-molecule capability using direct detection approaches such as interferometry. This limitation is slowly yielding to high-speed interferoemtric detection that is pushing the...
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3D Molecular Models
Animations | 21 Jun 2007 | Contributor(s):: Nicholas Vargo
This animation was created as part of the Children's Museum Nanotechnology Exhibit to give the viewer an idea of what objects look like at the nano-level. The molecules range from something as small as caffeine to major proteins and viruses.
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From Research to Learning in Chemistry through Visualization and Computation
Online Presentations | 17 May 2007 | Contributor(s):: Eric Jakobsson
Modern chemistry research and high school chemistry education are separated by institutional and geographical boundaries. As such, much of secondary chemistry education is still based on the periodic table instead of the computational methods that drive current chemistry research. In this talk,...
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Introduction to X-ray Photoelectron Spectroscopy and to XPS Applications
Online Presentations | 17 May 2007 | Contributor(s):: Dmitry Zemlyanov
X-ray Photoelectron Spectroscopy (XPS), which is known as Electron Spectroscopy for Chemical Analysis (ESCA), is a powerful research tool for the study of the surface of solids. The technique is widely used for studies of the properties of atoms, molecules, solids, and surfaces. The...
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SPMW AFM at Video Rate and Beyond
Online Presentations | 16 May 2007 | Contributor(s):: Mervyn Miles
The particular advantages that atomic force microscopy (AFM) has over other types of microscopy are well-known, but it has the one major disadvantage of low imaging rates in conventional instruments in which each image requires typically a minute or more to collect. This has two major detrimental...
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PNP Cyclic Peptide Ion Channel Model
Tools | 04 Apr 2007 | Contributor(s):: Brian Radak, Hyonseok Hwang, George C. Schatz, Mark Ratner
This tool simulates ion flow in a system modeled after cyclic peptide ion channels using Poisson-Nernst-Planck (PNP) theory.
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The Impact of Protein Flexibility on Ligand Binding to Proteins: A Computational Perspective
Online Presentations | 22 Mar 2007 | Contributor(s):: Markus A. Lill
Nowadays, computer-aided drug discovery (CADD) concepts are routinely used in academia and industry for identifying and optimizing lead structures. While CADD techniques have been widely used to attain a qualitative understanding of ligand binding to proteins, a current challenge is to...
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Computer Simulation of Nanoparticles, Viruses, and Electrical Power-Generating Bacteria
Online Presentations | 20 Mar 2007 | Contributor(s):: Peter J. Ortoleva
Models of cells and nanometer-scale biosystems are presented that clarify their physico-chemical characteristics and allow for computer- aided design of therapeutic and nanotechnical devices. Multiscale techniques are used to obtain rigorous, coarse-grained equations for the migration and...
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Introduction to X-ray Photoelectron Spectroscopy and XPS Application for Biologically Related Objects
Online Presentations | 14 Feb 2007 | Contributor(s):: Dmitry Zemlyanov
X-ray Photoelectron Spectroscopy (XPS), which is known as Electron Spectroscopy for Chemical Analysis (ESCA), is a powerful research tool for the study of the surface of solids. The technique becomes widely used for studies of the properties of atoms, molecules, solids, and surfaces. The main...
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Nanoparticles in Biology and Materials: Engineering the Interface through Synthesis
Online Presentations | 29 Jan 2007 | Contributor(s):: Vincent Rotello
Monolayer-protected nanoparticles provide versatile tools for nanotechnology. In our research, we use these nanoparticles as building blocks for the creation of functional magnetic and electronic nanocomposite materials. Simultaneously, we are using these particles as scaffolds for biomolecular...
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Potassium Channels: Conduction, Selectivity, Blockage, Inactivation, and Gating
Online Presentations | 03 Nov 2006 | Contributor(s):: Benoit Roux, NCN at Northwestern University
The determination of the structure of the KcsA K+ channel fromStreptomyces lividan has made it possible to investigate the functionof a biological channel at the atomic level. Because of its structuralsimilarity with eukaryotic K-channels, investigations of KcsA areexpected to help understand a...
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Exploiting the Electronic Properties of Proteins: An Approach to Nanoscale Electronics
Online Presentations | 26 Jul 2004 | Contributor(s):: Ron Reifenberger
Exploiting the Electronic Properties of Protiens: An Approach to Nanoscale Electronics
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Bio-nanotechnology: Implications for More Effective Tissue Engineering Materials
Online Presentations | 06 Mar 2003 | Contributor(s):: Thomas J. Webster
Nanotechnology can be defined as using materials and systems whose structures and components exhibit novel and significantly changed properties by gaining control of structures at the atomic, molecular, and supramolecular levels. Although many advanced properties for materials with constituent...