Papers – Page 341 – TechConnect Briefs

Optical Trapping of Gold-Coated Liposomes

Leung S.J., Romanowski M., University of Arizona, US

We recently introduced a nanocomposite material, plasmon resonant gold-coated liposomes, to address unmet needs in area of controlled delivery. Plasmon resonant nanocapsules are created via the deposition of gold onto the surface of 100 nm [...]

Stimuli-responsive nanogels by e-beam irradiation of dilute aqueous micellar solutions: Nanogels with pH controlled LCST

Picos-Corrales L.A., Licea-Claveríe A., Arndt K.-F., Instituto Tecnologico de Tijuana, MX

Nanogels have attracted growing interest owing to their potential for applications in drug delivery systems. In this work, responsive nanogels based on amphiphilic block copolymers crosslinked in the micellar state were prepared by electron beam [...]

Synthesis, characterization and viscoelastic properties of Nanocrystalline Cellulose grafted with Poly(N-isopropylacrylamide)

Hemraz U.D., Danumah C., Lu A., Boluk Y., National Institute for Nanotechnology, University of Alberta, CA

Nanocrystalline cellulose (NCC) is a renewable, nontoxic and biodegradable nanomaterial that can be obtained by acid hydrolysis of the amorphous regions of the widely available cellulose. The relative low density, low cost, high aspect ratios, [...]

Polymer Nanomanufacturing Strategies for Multifunctional Nanomaterials

Mead J., Barry C., Wei M., Busnaina A.A., University of Massachusetts-Lowell, US

Polymeric materials offer tremendous potential for preparing functional materials using nanoscale fillers and features. For example, the use of nanolayered materials in barrier or optical applications, nanofeatured materials for hydrophobic surfaces, and patterned polymer blends [...]

Electrosynthesis of Intrinsically Conducting Polymers/Silicon Nanocomposites: Formation Mechanism and Optical Properties

Harraz F.A., Salem A.M., Central Metallurgical R&D Institute (CMRDI), EG

When a silicon wafer is subjected to electrochemical etching in fluoride-based solution, silicon surface develops pores, often called porous silicon (PSi). A variety of pore sizes ranging from a few nanometers up to a few [...]

Effect of Carbon Black and Silver Nanoparticle Loading on the Structural and Thermo-Mechanical Properties of Chitosan-Based Films

Blagg A., Perales-Perez O., Valentin R., University of Puerto Rico-Mayagüez, PR

This work addresses the synthesis and structural and thermo-mechanical characterization of bare and chitosan-based nanocomposite films synthesized via spin coating and sol casting techniques. The dependence of these properties as a function of the nature [...]

Nanostructured Stearic Acid for Gas sensing applications

Hullavarad N., Hullavarad S., Hullavarad N., Hullavarad S., University of Alaska Fairbanks, US

In this paper we report the fabrication of long chain polymer molecule Stearic Acid by physical vapor deposition method. Thin films of stearic acid are characterized by X-ray diffraction for the crystalline quality and by [...]

Optical Properties of Hybrid Materials

Rao Y.Q., The Dow Chemical Company, US

Optical properties of materials are very important for many applications. One example is optical computing where photons replace electrons so that the computation speed can be further improved. In construction of optical computing devices, polymers [...]

Plasmonic nanoparticles ordered in self-assembled materials

Tallet C., Vieaud J., Merchiers O., Sivasankaran P.C., Nallet F., Aradian A., Ponsinet V., Centre de Recherche Paul Pascal, FR

Bottom-up approaches, and among them nanochemistry and self-assembly, have recently appeared as promising tools for the fabrication of plasmonic nanostructured materials. We study nanocomposites of polymers and gold nanoparticles presenting plasmonic resonance at a visible [...]

Computer Modeling Of Star Polymer Molecules With Diblock Arms

Swope W., IBM Almaden Research Center, US

Using molecular dynamics simulations and supercomputers we have studied a number of star polymer molecules in an aqueous environment to help determine how their composition affects structure, thermodynamic stability and kinetics. We have examined stars [...]