US – Page 30 – TechConnect Briefs

Development of Novel Nanocomposite Dielectrics for High Voltage, High Energy Density Multilayer Ceramic Capacitors (MLCCs) Applications.

Tan C., Aegis Technology, Inc, US

There are demanding requirements on multilayer ceramic capacitor (MLCC)-based power capacitors in the development of more advanced electronics and platforms for both civic and military applications. Currently used MLCCs, however, suffer from limitations of low [...]

Reinforced Ceramic Composites Fabricated From High-Char Yield Polymers

Butler T., Dyatkin B., Deese S.M., Laskoski M., U.S. Naval Research Lab, US

Advancements in high-speed propulsion systems have spurred demand for materials which can withstand the harsh conditions necessitated by this hypersonic travel. Ultra-high temperature ceramics (UHTCs) such as transition metal borides, nitrides, and carbides melt at [...]

Investigating Fracture Toughness Behavior of CNT and GNP Reinforced Vinyl-Ester Resin by Altering Surface Characteristics of Nanoparticles

Gapstur C.M., Mahfuz H., Florida Atlantic University, US

In this paper, we compared the fracture toughness (KIC) and strain energy release rate (GIC) of three systems of hybrid nanocomposites by modifying surface characteristics of the carbon nanotubes (CNT) and graphene nanoplatelets (GNP) reinforcements. [...]

Self-healing and self-cleaning nanocomposite coatings

Song K., Arizona State University, US

This work reports on the healing of translucency, roughness, nanoindents, and shallow scratches in polymer/nano-particle composites. Mechanical loading were applied on polymer/self-healing additive/nano-particle composites. The concentration of nano-particles and self-healing additives were optimized to 1.0 [...]

From Flasks to Applications: Combinatorial Chemistry and Scale-up of High-Performance Complex Nanomaterials using Automated Synthesis

Hanson C.J., Jeffrey S., Hu Z., Htoon H., Hollingsworth J., Los Alamos National Laboratory, US

Semiconducting nanocrystals, also known as quantum dots (QDs), that emit light with near-unity quantum yield and that are extremely photostable are attractive options as down-conversion and direct electricity-to-light materials for a variety of applications, including [...]

Ferromagnetism and Giant Paramagnetism in Cu@C nanocomposites

Estiphanos M., Sharoyan E., Gyulasaryan H., Manukyan A., Mirzakhanyan A., Bernal O., Kocharian A., California State University Los Angeles, US

Different size copper nanoparticles coated by carbon are synthesized by solid phase pyrolysis of polycrystalline phthalocyanine (CuPc, Pc= C32N8H16). The structural properties of obtained powder products are characterized by XRD and Raman spectroscopy. The morphologies [...]

The biodegradable polymeric PLA-PEG nanoparticles is an efficient delivery system for a chlamydial M278 mucosal nanovaccine that provides protective systemic and mucosal antibody responses in mice

Verma R., Sahu R., Dixit S., Singh S.R., Dennis V.A., Alabama State University, US

The rising concerns relating to the failure of public health programs, relying mostly on antibiotic treatments to control the plethora of disease manifestations caused by Chlamydia trachomatis in humans, strongly begs the urgency for an [...]

Photoswitching Nanoparticles Enable Innovative Bioimaging Technologies

Wan W., Li A., Washington State Universoty, US

Nanoparticles have evolved to be the carriers of multiple technologies, which garnished unprecedented power in molecular imaging. For example in bioimaging, a single fluorescent probe is usually lost in the ocean of myriad other molecules [...]

Gas phase sodium flame synthesis of non-oxide metallic powders

Abid A., Smith G., Krause M., Yin A., Sungail C., GAM, US

Demand for new high surface area non-oxide materials is growing to support the diverse market such as energy storage, catalysts, electronic materials etc. Tight control of powder purity and flow properties are important parameters for [...]

Graphene Synthesized in the Gas Phase: Research and Applications

Dato A., Harvey Mudd College, US

Pure and highly ordered graphene can be rapidly and continuously produced through the substrate-free gas-phase synthesis method. The single-step process involves sending precursors, such as ethanol and dimethyl ether, directly into atmospheric-pressure microwave-generated argon plasmas, [...]