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24 Jul 2006 | | Contributor(s):: Eric Darve, Artit Wangperawong, Kazutora Hayashida
Study hydrophobicity and how Lennard Jones particles cluster in a polar solvent
Nanoparticles in Biology and Materials: Engineering the Interface through Synthesis
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29 Jan 2007 |
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...
Nanobiotechnology and Biosensors
11 Jan 2007 | | Contributor(s):: Chenzhong Li
This presentation is meant to provide an overview of the field of Nanobiotechnology and Bioelectronics with a focus on the development of electrical biosensors. It covers the principles, technologies, methods and applications of nanotechnology in the development of Biosensors. After taking the...
On Modeling Metabolic Systems
04 Jan 2007 | | Contributor(s):: Doraiswami Ramkrishna
Modeling metabolism has been generally based on the numerouscellular reactions to be in steady state with respect to theexternal fluxes on the cell boundary. The essence of this"steady state" approach is the identification of all thereaction rates (fluxes), both external and internal to the...
Plasmon-resonant Nanorods as Multifunctional Imaging Agents
28 Dec 2006 | | Contributor(s):: Alexander Wei
Gold nanorods have several outstanding characteristics as optical contrastagents for biomedical imaging. Their strong optical absorption atnear-infrared (NIR) frequencies can be used to generate contrast for opticalcoherence tomography (OCT) imaging, and is well matched for detectionmodalities...
25 Dec 2006 | | Contributor(s):: Rakesh Voggu
DNA has been well known for over 50 years as the predominant chemical for duplication and storage of genetic information in biology. Now DNA has also been recognized as a useful building material in the field of nanotechnology. DNA provides basic building blocks for constructing functionalized...
24 Dec 2006 | | Contributor(s):: Rakesh Voggu
2005 Oncological Sciences Center Symposium Agenda
07 Dec 2006 |
Geometry of Diffusion and the Performance Limits of Nanobiosensors
05 Dec 2006 | | Contributor(s):: Muhammad A. Alam, Pradeep Ramachandran Nair
This presentation demonstrates how the classical diffusion-capture (D-C) model has improved sensor performance, since the D-C model is a "geometry of diffusion" rather than a "geometry of electrostatics." A scaling law based on D-C is also posited; the scaling law resolves many classical puzzles...
NCN at Northwestern: Student Leadership Council Seminars
05 Nov 2006 | | Contributor(s):: NCN at Northwestern University
This series is organized by NCN students at Northwestern University.Speakers are invited by the Student Leadership Council to visitNorthwestern to interact with students and faculty, and to presenta research seminar on their research in Computational Nanotechnology.Significant interaction with...
Potassium Channels: Conduction, Selectivity, Blockage, Inactivation, and Gating
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...
Molecular Workbench: An Interface to the Molecular World
25 Jun 2006 | | Contributor(s):: Charles Xie
The Molecular Workbench software is a free, open-source modeling and authoring program specifically designed for use in science education. Powered by a set of real-time molecular simulation engines that compute and visualize the motion of particles interacting through force fields, in both 2D and...
Nanotechnology in Biology
29 Aug 2006 | | Contributor(s):: Elizabeth Gardner
This is the first of two exercises developed by El Paso High School teachers as part of a two week workshop on nanotechnology education, part of the National Center for Learning and Teaching of Nanoscale Science and Engineering (NCLT) Professional Development Workshop held June 19-30, 2006 at the...
Information Theory and Cell/Nanoparticle Modeling
03 Mar 2005 |
Physico-chemical models of cells and nanoparticles are being developed for pure and applied studies. Nanoparticles are simulated by a Poisson-Boltzmann equation (for determining the electric force field in bioelectrolyte media) while an all atom-simulator is used to determine structure. Both...
Three-Dimensional Simulations of Field Effect Sensors for DNA Detection
03 Aug 2006 | | Contributor(s):: Eddie Howell, Gerhard Klimeck
Here, the development of a DNA field-effect transistor (DNAFET) simulator is described. In DNAFETs the gate structure of a silicon on insulator (SOI) field-effect transistor is replaced by a layer of immobilized single-stranded DNA molecules which act as surface probe molecules. When...
Chemical Modification of GaAs with TAT Peptide and Alkylthiol Self-Assembled Monolayers
03 Aug 2006 | | Contributor(s):: Hamsa Jaganathan
The use of self-assembled monolayers (SAM) on semiconductors creates a basis for the design and creation of bioelectronics, such as biosensors. The interface between the surface and an organic monolayer can change significant electrical and physiochemical properties of a biological device....
Technique for High Spatial Resolution, Focused Electrical Stimulation for Electrically Excitable Tissue
08 Aug 2006 | | Contributor(s):: Matteo Mannino
Cochlear implant devices have made use of electrode pulses as a method of nerve fiber stimulation since their early conception. Electrode stimulation is limiting in both quality and consistency, and a new method is required if significant improvements to implant devices are to be made. By using a...
06 Aug 2006 | | Contributor(s):: Margarita Shalaev
DNA is a relatively inexpensive and ubiquitous material that can be used as a scaffold for constructing nanowires. Our research focuses on the manufacturing of DNA-templated, magnetic nanowires. This is accomplished by synthesizing positively-charged metal nanoparticles that self-assemble along...
Surface Analysis of Organic Monlayers Using FTIR and XPS
02 Aug 2006 | | Contributor(s):: Jamie Nipple, Michael Toole, David Janes
Current research concerning self-assembled monolayers (SAM) focuses on the fabrication of microelectronics utilizing a semiconductor/molecule/metal junction. This study seeks to investigate various experimental techniques for creation of organic monolayers by surface analysis techniques including...
A MATLAB code for Hartree Fock calculation of H-H ground state bondlength and energy using STO-4G
08 Aug 2006 | | Contributor(s):: Amritanshu Palaria
Hartree Fock (HF) theory is one of the basic theories underlying the current understanding of the electronic structure of materials. It is a simple non-relativistic treatment of many electron system that accounts for the antisymmetric (fermion) nature of electronic wavefunction but does not...