US – Page 349 – TechConnect Briefs

Electric Field Assisted Assembly of Functionalized Quantum Dots into Multiple Layer Thin Films

Dehlinger D.A., Sullivan B.D., Esener S., Heller M.J., University of California San Diego, US

Electric Field Assisted Self-Assembly of Functionalized Nanoparticles into Multiple Layer Thin Films Michael J. Heller, Benjamin Sullivan and Dietrich Dehlinger Departments Bioengineering and Electrical and Computer Engineering University California San Diego La Jolla, CA 92093 Reconfigurable [...]

Particle Characterization of Nanoscale Materials using Dynamic and Static Light Scattering

Bumiller M., DeLuca T., Mattison K., Rawle A., Malvern Instruments, Inc., US

Purpose: Novel materials with single particle dimensions at the nano scale are submitted to our laboratory on a regular basis. These samples include single walled nanotubes (SWNT), buckyballs, quantum dots and various metal oxides. Determining [...]

Destruction of Organophosphate Agents by Recyclable Catalytic Magnetic Nanoparticles

Bromberg L., Hatton T.A., Massachusetts Institute of Technology, US

Organophosphorus pesticides and warfare agents are not readily hydrolyzed in aqueous media without applying extremes of pH, heat, or bleach. We show that suspensions of magnetite (Fe3O4) nanoparticles modified with a common antidote, 2-pralidoxime (PAM), [...]

Towards the Preparation of Boron Carbide Nanorods by Carbothermal Reaction Method

Chang B., Gersten B.L., Szewczyk S.T., Adams J.W., Queens College, CUNY, US

Boron carbide (B4C) is an attractive material due to its extreme hardness, low specific weight, high chemical stability and good wear resistance. In this study, nano-sized boron carbide powders have been prepared through a carbothermal [...]

Development of Stab Resistant Body Armor using Fumed SiO2 Nanoparticles Dispersed into Polyethylene Glycol (PEG) through Sonic Cavitation

Mahfuz H., Clements F.E., Stewart J., Florida Atlantic University, US

Traditionally, the development of shear thickening fluid (STF) begins with micron size silica suspended in water. This material is transformed into STF through centrifugation and exchange processes. In other approaches polyethylene glycol (PEG) is added [...]

Functionalized Nanoporous Ceramic Sorbents for Removal of Mercury and Other Contaminants

Mattigod S.V., Fryxell G.E., Skaggs R., Parker K.E., Pacific Northwest National laboratory, US

A new class of high-performance nanoporous sorbents has been developed for heavy metal removal that overcomes the deficiencies of existing technologies. These novel materials are created from a combination of synthetic mesoporous ceramic substrates that [...]

Monometallic nano-catalysts for the reduction of perchlorate in water

Wang D.M., Lin H-Y, Huang C.P., University of Delaware, US

Perchlorate removal in a clean, cost-effective and public-acceptable approach is one of the important issues for current drinking water treatment. Catalytic membrane (CM) was prepared by coating monometallic catalysts of the nano-size onto supports by [...]

YAG:Ce3+ Nanophosphor Synthesized with Salted Sol-Gel Method

Jia D., Jia W., Shaffer C.V., Weyant J.E., Goonewardene A., Guo X., Guo X.Z., Wang Y., Guo X., Guo X.Z., Li K.K., Zou Y.K., Jia D., Jia W., Boston Applied Technologies, Inc., US

Nanophosphors of Y3Al5O12:Ce3+ (YAG:Ce) were synthesized with a salted sol-gel (SSG) method, in which water-Heptane solutions of certain inorganic salts were used along with traditional metal alkoxides precursors. YAG phase could be formed at a [...]

Laser pyrolysis – a platform technology to produce functional nanoscale materials for a range of applications

Chiruvolu S., Li W., Ng M., Du K., Ting N.K., McGovern W.E., Kambe N., Mosso R., Drain K., NanoGram Corporation, US

Nanoscale materials continue to generate ever increasing levels of interest for applications in a broad-range of fields. Concurrently variety of synthesis methods are being explored and developed for the synthesis and production of nanoparticles including [...]

Europium-Doped Yttrium Silicate Nanophosphors Prepared by Flame Synthesis

Qin X., Ju Y., Bernhard S., Yao N., Princeton University, US

Europium doped yttrium silicate nanophosphors were successfully synthesized for the first time by using the flame spray pyrolysis method at different silicon and europium concentrations. The effect of silicon concentration on the crystal structure, morphology, [...]