Papers – Page 53 – TechConnect Briefs

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 [...]

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 [...]

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. [...]

Ion beam sputter deposition technique for direct growth of Ge quantum dots on a graphene/SiO2/Si substrate

Yang Y., Yunnan University, CN

The quantum dots (QDs)/graphene hybrid structure shows excellent photoresponse abilities in photodefectivity devices due to the unique QDs quantum confinement and the ultrahigh carrier mobility of graphene. Thus, this project invented the ion beam sputtering [...]

Theoretical Comparison of Optical and Photothermal Properties of Near-Infrared Plasmonic Nanoparticles

Liu K., Xue X., Furlani E.P., University at Buffalo, US

In this presentation, we use 3D computational models to compare the optical and photothermal behavior of plasmonic nanostructures that are commonly used for near-infrared (NIR) applications. These include SiO2@Au core-shell, Au nanocage and Au nanorod [...]

Self-Assembly and Optical Behavior of Magnetic-Plasmonic Nanostructures

Liu K., Xue X., Sukhotskiy V., Furlani E.P., University at Buffalo, US

We introduce a bottom-up method for the fabrication of nanostructured photonic media and demonstrate proof-of-principle using a multiphysics modeling approach. The method involves magnetic field-directed self-assembly of magnetic-plasmonic core-shell particles (e.g. Fe3O4@Au) into extended particle [...]

Indium Nitride Nanowire Growth by Chemical Vapor Deposition and Electrical Characterization

Teker K., Moussa O., Ali Y.A., Otto J., Istanbul Sehir University, TR

The III-nitrides have been intensely studied due to their wide range of applications from high efficiency solid-state lighting and photovoltaics to high-power and high temperature electronics. InN has received great attention due to its unique [...]