US – Page 263 – TechConnect Briefs

Simulation and Fabrication of Large Area 3D Nanostructures

Bogart K.H.A., El-kady I., Grubbs R.K., Rahimian K., Sanchez A.M., Ellis A.R., Wiwi M., McCormick F.B., J.-L. Shir D., Rogers J.A., Sandia National Laboratories, US

Three-dimensional (3D) nano-structures are vital for emerging technologies such as photonics, sensors, fuel cells, catalyst supports, and data storage. The Proximity-field nanoPatterning1 method generates complex 3D nanostructures using a single exposure and development cycle. Exposure [...]

Fabrication and Characterizations of Ultra Violet Photosensor Based on Single ZnO Nanorod

Lupan O., Chai G., Chow L., University of Central Florida, US

Wide-gap semiconducting metal oxides with nanostructures such as nanorods, nanowires are promising as building nanoblocks in novel devices. Zinc oxide is most widely applied material owing to its characteristics and low cost, radiation hardness, chemical [...]

Optical Nanotrapping Using Illuminated Metallic Nanostructures: Analysis and Applications

Furlani E.P., Baev A., Prasad P.N., University at Buffalo, US

The interest in optical particle manipulation has grown steadily in recent years especially for applications in the biological sciences where the manipulated objects include cells, organelles, and larger molecules. While micron and sub-micron bioparticles can [...]

Preparation and characterization of highly porous PVDF nanofibers and yarns

Andrukh T., Few C., Burtovyy O., Burtovyy R., Burtovyy O., Burtovyy R., Luzinov I., Kornev K., Clemson University, US

Unique highly porous Polyvinylidene difluoride (PVDF) nanofibers (Figure 1) of about 50-500 nm in diameter were prepared by electrospinning. Electrospinning setup (Figure 2) allows us to control the nanofiber placement on the gap-type electrodes. In [...]

Nanosilicate Filled Poly (vinyl chloride-co-vinyl acetate) and Epoxy Coatings for Steel Corrosion Protection

Allie L., Thorn J., Aglan H., Tuskegee University, US

The corrosion protection of nanosilicate filled poly (vinyl chloride - co - vinyl acetate) (VYHH) and epoxy resins has been studied. Nanosilicate was incorporated into VYHH at 0%, 0.5% and 1.5%wt loadings, and into epoxy [...]

Electrochemical Impedance and Thermal Characterization of Nano-Reinforced Vinyl Chloride/Vinyl Acetate Coating

Calhoun M., Ludwick A., Aglan H., Tuskegee University, US

A poly(vinyl chloride/vinyl acetate) copolymer (VYHH) with and without multi walled carbon nanotubes (MWCNTs) as reinforcements was used as a coating for steel substrates in order to evaluate its barrier properties against corrosion. Electrical impedance [...]

Overview of Polymer Nanocomposites as Dielectrics and Electrical Insulation Materials for Large High Voltage Rotating Machines

Han J., Garrett R., Siemens Power Generation, US

Polymer nanocomposites are defined as polymers in which small amounts of nanometer size filers are homogeneously dispersed. In power industry, electrical insulating polymers usually incorporate inorganic fillers to achieve specific electrical, mechanical, thermal properties and [...]

Universal platform for preparation of functional block copolymers

McCarthy P., Tsarevsky N.V., Jakubowski W., Spanwick J., Matyjaszewski K., ATRP Solutions, Inc., US

Block copolymers with hydrophilic and hydrophobic segments can assemble to generate a variety of nano-scale structures. Additionally, block copolymers have tremendous potential to improve the performance of commercial products in pharmaceuticals, cosmetics, adhesives and detergents [...]

Multifunctional magnetic hydrogels with polyethylene glycol-derivative colloidal nanospheres for drug delivery and hyperthermia applications

Ghosh S., GhoshMitra S., Cai T., GhoshMitra S., Neogi A., Hu Z., Mills N., Southeast Missouri State University, US

Magnetically responsive thermo-active hydrogels offer several potential advantages over other bio-material systems for the controlled release of drugs and targeted thermal therapy of the cancerous cells. Thermal and magnetic responses of hydrogels can be tuned [...]

Characterization of Cellulose Nanocrystals by SPM

Lahiji R.R., Reifenberger R., Moon R.J., Rudie A., Purdue University, US

Cellulose is the world’s most abundant biopolymer and is present in virtually all plants. Its main function is to act as a reinforcement material. Cellulose is a linear chain of ringed glucose monomers ((C6H10O5)n; n=10 [...]