characterization – TechConnect Briefs

Discriminated properties of PEI functionalized gold nanoparticles (Au-PEIs) predetermined by synthetic routes of ligand exchange and reduction processes: Paths and Fates

Cho T.J., Gorham J.M., Pettibone J.M., Hackley V.A., National Institute of Standards and Technology, US

Polyethyleneimine (PEI) functionalized AuNPs (Au-PEIs) have potential use as positively charged gold nanoparticles (AuNPs) for nano-medicinal applications, due to their cationic surfaces that promote cellular uptake and gene transfection.1-6 Au-PEIs can be prepared by one [...]

Spectroscopic Diagnostics And Material Characterization For Wave Liquefaction™ Processing Of Carbon Materials For The Production Of Value-Added Chemicals And Feedstocks

Vander Wal R., Sengupta A., Musselman E., Zeller K., Skoptsov G., Penn State University, US

1. Optical Diagnostics for Advanced CTL and and GTL Processes H Quest Vanguard is developing broad-spectrum microwave plasma processes targeting conversion of hydrocarbon feedstocks such as coal and natural gas to value-added materials, chemicals and [...]

Characterization of Polymer Nanocomposites with Thermal Analysis and Spectrum techniques

Mena Navarro M.E., Estrada Guerrero R.F., Torres González L.A., Tinajero R., Palafox L., Universidad Iberoamericana Ciudad de Mexico, MX

Polymer nanocomposites have attracted attention in materials science because they exhibit different properties from those of their counterpart polymer microcomposites. An important characteristic is the size of nanoparticles, their effects increase because of their scattering [...]

Quantifying release of nano- and advanced materials

Brame J., Poda A., Alberts E., Jackson C., Kennedy A., US Army Engineer Research and Development Center, US

The same unique properties of Manufactured Nanomaterials (MNs) and Advanced Materials (AMs) that make them desirable for new product applications may also increase their environmental health and safety (EHS) uncertainty , leading to high risk [...]

SEM Characterization of Adipose Tissue Structure

Brimiene V., Skaudzius R., Misevicius M., Brimas E., Brimas G., Brimas E., Brimas G., Kareiva A., Vilnius University, LT

In this work the scanning electron microscopy (SEM) was used for the characterization of adipose tissue samples taken from volunteer obese patients. The adipose tissue was taken from 3 layers of adipose tissue (subcutaneous, preperitoneal [...]

In situ TEM/STEM of the Coarsening of Nanoporous Gold

El-Zoka A.A., Howe J., Newman R.C., Perovic D., University of Toronto, CA

Nanoporous gold (NPG) is usually fabricated by the selective electrolytic dissolution (dealloying) of Ag from a binary Ag-Au alloy, or sometimes from a ternary alloy such as Ag- Au-Pt. The resulting ligament-pore structure is bicontinuous [...]

Green Fenton-like catalysts for the removal of water pollutants

Nadejde C., Neamtu M., Hodoroaba V.-D., Schneider R.J., Paul A., Ababei G., Panne U., Alexandru Ioan Cuza University, RO

Three tannic acid (TA) and dissolved natural organic matter (NOM) core-shell magnetite nanoparticles catalysts were evaluated as magnetic heterogeneous catalysts. Simple and efficient procedures for the preparation of coated magnetic nanoparticles were employed. The catalysts [...]

Manganese Doped Zinc Oxide Nanoparticles (MnxZn1-xO): Synthesis, Magnetic Properties and Applications: Photocatalytic and Chemical Sensing

Chauhan M.S., Chauhan S., Chauhan M.S., Chauhan S., Kumar R., Himachal Pradesh University, Shimla, IN

Manganese doped zinc oxide nanoparticles (NPs), MnxZn1-xO; x = 0.01, 0.02, 0.05, 0.1 and 0.2 have been fabricated by the simple solution process. Well-defined morphologies and well-crystallinity of these nanoparticles have been verified with the [...]

Properties of xYSZ nanoparticles and pellets with x varying from 1 to 15%

Suciu C., Dorolti E., Hoffmann A.C., University of Bergen, NO

Nanoparticles of oxides are used, among other things, for solid oxide fuel cells (SOFCs), where the use of yttria-stabilized zirconina nanoparticles in the inner region of the anode will increase the extent of the "triple-phase [...]

Imaging and Analysis at the Harvard University Center for Nanoscale Systems

Magyar A., Harvard University, US

University-based shared experimental facilities are tremendous assets, serving the local academic needs as well as providing access to equipment and expertise for neighboring companies, both small and large. Properly managed, such a facility can serve [...]