Papers – Page 26 – TechConnect Briefs

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 [...]

A New Sonochemical Synthesis Route for Silicon Nanoparticle Inks for Energy and Nanomedical Applications

Cádiz Bedini A.P., Chen C., Klingebiel B., Notten P.H.L., Rau U., Forschungszentrum Jülich, DE

Silicon nanoparticles (Si-NPs) have become increasingly relevant in several important fields ranging from solar cells, next-generation quantum dot LEDs, lithium-ion batteries, and because silicon is biodegradable, their use as drug carriers or fluorescent markers has [...]

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 [...]

Dendrigraft Poly-L-lysine (d-PLL) Coated Gold Nanoparticles in Water for siRNA Delivery to Prostate Cancer Cells

Rahme K., Minassian G., Ghanem E., Souaid E., Guo J., O’Driscoll C.M., Holmes J.D., Notre Dame University (Louaize), LB

In this study we used dendrigraft poly-L-lysine (d-PLL) as a stabilising ligand for gold nanoparticles (AuNPs) in water. The d-PLL generation two (P2) with narrow molecular weight distribution of about 7 KD was obtained by [...]

A Simple Synthesis of Polymer Coated Gold and Silver Nanoparticles in Water for Potential Use in Biomedical Applications

Rahme K., Minassian G., Ghanem E., Sarkis M., Nakhl M., El Hage R., Souaid E., Holmes J.D., Notre Dame University (Louaize), LB

Herein we describe a simple method for the synthesis of highly stable gold (Au) and silver (Ag) nanoparticles (NPs) in water. Ag and Au NPs of different surface charges (positively charged, negatively charged, or nearly [...]

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 [...]

Synthesis and Characterization of Magnetite Nanoparticles, Activated Carbon and their Composites

Adegoke H.I., Adekola F.A., Abdul Raheem M.N., University of Ilorin, NG

Magnetite nanoparticle (MNP), Fe3O4 was prepared via co-precipitation method, activated carbon was produced from coconut coir pith through chemical activation process. As coconut coir showed maximum weight loss at temperatures lower than 500°C, it was [...]

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-Metal Oxide based Nanocomposites for Supercapacitor Applications

Selvakumar D., Nagaraju P., Jayavel R., Anna University, IN

Two dimensional graphene-based nanocomposites have been synthesized through the modified Hummer’s method and chemical reduction process. Transition metal oxides were decorated on the graphene sheets by in-situ hydrothermal method. The composites were formed with graphene [...]