US – Page 31 – TechConnect Briefs

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 [...]

Magnetometry Measurements of Nanomagnetic Materials

Dodrill B.C., Lake Shore Cryotronics, US

Magnetometers are used to characterize magnetic material properties. Magnetometry techniques can be broadly classified into two categories: inductive and force-based. The two most commonly used inductive techniques are vibrating sample (VSM) and superconducting quantum interference [...]

Acid Electrolytes Effect on In-Situ Growth and Morphology of Polymer Nanowires in Microelectrode Devices

Mushfiq M., Alam M.M., InnoSense LLC, US

Conductive polymer (CP)-based nanostructured materials in thin films and nanowires have been utilized in numerous chemical sensor and biosensor applications.(1) Their beneficial attributes include: lightweight, large surface area, adjustable transport properties, chemical specificity, low cost, [...]

Surface Modification and Characterization of Polylactic Acid (PLA) 3D printed structures for Cell culture applications.

Pokharna P., Ghantasala M., Rozhkova E., Western Michigan University, US

The main aim of this research is to understand the surface modification effects and improve the surface properties of 3D printed scaffolds that would be biocompatible and support the growth and proliferation of cells. Polylactic [...]

Nano-JKR Method Eliminates Adhesion Errors in Nanoindentation of Compliant Polymers and Hydrogels

Ebenstein D.M., Bucknell University, US

Although nanoindentation (or instrumented indentation) was originally developed for characterization of hard, stiff materials such as metals and silicon, this tool has recently seen increased use with compliant polymers and hydrogels. One challenge associated with [...]

Abrasive scanning with AFM on biocompatible polymers: measuring dry vs. swollen film thickness and probing properties

Haugstad G., Wormuth K., University of Minnesota, US

Atomic force microscopy (AFM) is well-known as a tool for imaging surface topography down to subnanometer scales on all forms of matter, utilizing a scanning stylus (“tip”). The method is applicable to biomolecules adsorbed to [...]

Effect of filler size in a graphene-anthracene carbon-carbon composite

Singh M., Vander Wal R., Pennsylvania State University, US

Characterizing carbon-carbon composite behavior across multiple length scales is essential to comprehending its macro-scale behavior. This work characterizes a graphene-anthracene composite from the nano- to the micron-scale with a variety of analytical techniques brought to [...]

Thorough Characterization of Liposomes by Complementary Light and X-Ray Scattering Techniques

Ragheb R., Bolze J., Taylor G., Tamaddoni N., Griffiths D., Nobbmann U., Malvern Panalytical, US

Liposomes are spherical vesicles with an aqueous core enclosed by one or more phospholipid bilayers or lamellae and are frequently classified based on their size and number of bilayers [1]. They are often used in [...]

Ultra Uniform Colloidal Particles as Nanoscale Reference Materials

Saunders A.E., Garcia D.A., Oldenburg S.J., nanoComposix, Inc., US

The ability to understand and predict the properties of nanomaterials relies on an accurate measurement of their size, shape, number density, and other physical properties. One challenge associated with many measurement techniques is the lack [...]

Integrated Surface-Enhanced Raman Spectroscopy Sensors for Process Monitoring

Zhang K., Zhang X., Rabin O., Zhang K., Zhang X., Briber R.M., von Bredow H., Metting C., Atanasoff G., University of Maryland, US

Optical metamaterials obtain their unique properties from the combination of nanoscale plasmonic components and dielectric components. Reproducible mass-production of metamaterials is challenging but desirable for applications such as surface-enhanced Raman scattering (SERS) for chemical sensing. [...]