US – Page 407 – TechConnect Briefs

High Order Parametric Resonance and Nonlinear Mechanics of Nanowires: Techniques and Experiments

Yu M-F, Wagner G.J., University of Illinois at Urbana-Champaign, US

We realize parametric resonances in a nanowire mechanical system using an oscillating electric field. The realization of high order parametric mechanical resonance in macroscopic systems is generally difficult due to mechanical energy losses and strict [...]

Single-molecule Fluorescence and Force Microscopy Employing Carbon Nanotubes

Wade L.A., Shapiro I., Ma Z., Quake S.R., Collier C.P., California Institute of Technology, US

The observation of spectroscopic signals, in response to mechanically induced changes in biological macromolecules can be enabled at an unprecedented level of resolution by coupling single-molecule manipulation/sensing using carbon nanotubes with single-molecule fluorescence imaging. Proteins, [...]

Nano-Electronic Sensors – Practical Device Designs for Sensors

Stetter J.R., Bradley K., Cumings J., Gabriel J-C, Gruner G., Star A., Nanomix, US

There is often a large gap between laboratory science and practical products. It will take some years to fathom the overall technical importance of nano-technology and even longer to realize societal benefits through practical products. [...]

Carrier and Phonon Spectrum in Quantum Dot Superlattices for Optoelectronic and Thermoelectric Applications

Lazarenkova O.L., Balandin A.A., University of California Riverside, US

Quantum dot superlattices, e.g. multiple arrays of quantum dots, have been proposed for optoelectronic and thermoelectric applications. In this paper we present two models for calculating carrier spectrum in regimented three-dimensional (3D) quantum dot superlattices [...]

Electrical Characterization of Polyaniline/Polyethylene Oxide Nanofibers for Field Effect Transistors

Mueller C.H., Theofylaktos N., Pinto N.J., Robinson D.C., Miranda F.A., Analex Corporation, US

Nanofibers comprised of copolymer polyaniline/polyethylene blends are being investigated for use in nanoelectronic applications such as field effect transistors and ultra-small antennas. The nanofibers were fabricated by an electrospinning technique, wherein a high voltage (typically [...]

Electron Field Emission Properties of Single-walled Carbon Nanotubes: Modeling and Simulations

Buldum A., Lu J.P., The University of Akron, US

Carbon nanotubes have novel physical properties and they are promising materials for future technological applications. One of the most promising future applications is employing carbon nanotubes in electron field emission devices. Recent experiments showed that [...]

Carbon Nanofiber-Based Electrode Interface to Microbial Biofilms

McKnight T.E., Melechko A.V, Guillorn M.A., Merkulov V.I., Fleming J.T., Hensley D.K., Hullander E., McPherson J., Nivens D., Sayler G.S., Lowndes D.H., Simpson M.L., Oak Ridge National Laboratory, US

We report on the integration of bacterial biofilms with carbon nanofiber-based electrochemical systems to provide a robust biosensor platform. Biofilms are robust, self-packaged communities of whole cells that have attracted much attention due to their [...]

Nanoscience and Nanotechnology:Two New Exciting Fields for Future Display Applications

Yaniv Z., Applied Nanotech, Inc., US

Though just two years ago nanoparticles and nanotechnology were little more than a blip on the industrial applications radar, over 1 billion in annual venture capital is expected to be invested in the field in [...]

Surface and Interface Characterization of Self-Assembled Copper Oxide Quantum Dots on SrTiO3(001) Surface

Thevuthasan S., Nachimuthu P., Kim Y.J., Lyubinetsky I., Lea A.S., Shutthanandan V., Engelhard M.H., Baer D.R., Shuh D.K., Lindle D.W., Pacific Northwest National laboratory, US

Interface controlled nucleation and growth of two and three dimensional nano structures show unique structural, optical, electronic and vibrational properties due to the quantum confinement of charge carriers. When the size is sufficiently small, the [...]

In-situ Sintering Studies on Nano-Alumina

Stanciu L.A., Raether F., Groza J.R., Unviersity of California Davis, US

Recently, a thermooptical measuring device (TOM) has been developed to in-situ monitor the thermal diffusivity, shrinkage and light scattering of materials during sintering1,2. The initial stage of sintering is difficult to study by conventional methods [...]