characterization – Page 2 – TechConnect Briefs

Physico-chemical Characterization of Extracts of Silver Nanoparticle Containing Medical Devices

Casey B.J., Jayanti P., Sussman E.M., Dair B.J., U.S. Food and Drug Administration, US

The main goal of this research was to gain a better understanding of the extraction profile of medical devices containing silver nanoparticles. Multiple silver nanoparticle containing medical devices were incubated in various extract solutions (water, [...]

Trap-induced apparent linearity of CNTFETs (invited)

Haferlach M., Claus M., TU Dresden, DE

Compared to conventional bulk semiconductors carbon nanotubes (CNTs) possess a number of properties which may make CNT technology superior for certain applications. In particular, the one-dimensional (1D) transport in CNTs leads not only to a [...]

Characterization of silver-coated carbon nanotubes dispersed in a specifically formulated dispersant – NanoSperse AQ®

Chaudhari A.A., Singh S.R., Pillai S.R., Alabama State University, US

Silver-coated carbon nanotubes (AgCNTs) are well documented for their antibacterial properties. However, aqueous dispersions of AgCNTs could be less effective against bacteria due to their tendency to agglomerate when re-suspended in water. In this study [...]

3-D characterization of carbon nanotube-polymer composites using scanning electron microscopy and confocal Raman microscopy

Zhao M.H., Cannara R.J., National Institute of Standards and Technology, US

3D characterization of the dispersion of CNTs in a polymer matrix is a critical step toward understanding and improving the performance of CNT polymer composites. In this study, SEM and confocal Raman microscopy (CRM) were [...]

Understanding the Biological Impact of Nanoengineered Surfaces

Casey B.J., Kumar G., Petrochenko P., Skoog S.A., Narayan R.J., Goering P.L., Dair B.J., U.S. Food and Drug Administration, US

There is a growing trend in the medical device industry to manipulate the surface topography of a device with nanoscale features in order to promote advantageous biological responses such as better tissue integration and/or faster [...]

Statistical Analysis of Electroplated Indium (III) Sulfide (In2S3) Films, a Potential Buffer Material for PV (Heterojucntion Solar Cells) Systems, using Organic Electrolytes

Ali Mughal M., Newell M.J., Vangilder J., Thapa S., Hall J., McNew D., Felizco F., Wood K., Engelken R., Carroll B.R., Johnson J.B., Arkansas State University, US

Deposition conditions were optimized in order to avoid non-uniformity, cracks, and improper stoichiometry in electrodeposited indium (III) sulfide (In2S3)thin films using statistical analysis.

Statistical Analysis of Electroplated Indium (III) Sulfide (In2S3) Films, a Potential Buffer Material for PV (Heterojucntion Solar Cells) Systems, using Organic Electrolytes

Ali Mughal M., Newell M.J., Vangilder J., Thapa S., Hall J., McNew D., Felizco F., Wood K., Engelken R., Carroll B.R., Johnson J.B., Arkansas State University, US

Deposition conditions were optimized in order to avoid non-uniformity, cracks, and improper stoichiometry in electrodeposited indium (III) sulfide (In2S3)thin films using statistical analysis.

From Viruses to Cells: Tuneable Resistive Pulse Sensors for High Resolution Characterization of Nano to Micro-Scale Particle Solutions

Kozak D., Anderson W., Vogel R., Broom M.F., Izon Science, US

Tuneable resistive pulse sensors (TRPS) have generated considerable interest for their ability to accurately characterize the size, charge and concentration of nano to micro-scale particulate suspensions. Measuring the properties of each particle (e.g. exosome, virus, [...]

High Throughput Screening of Nanomaterials: The Arkansas Research Consortium in Nanotoxicity, a partnership between Arkansas and the FDA

Howard P.C., Biris A.S., Salamo G.J., Zharov V.P., Buchanan R.A., Arkansas Research Alliance, US

The state of Arkansas and the FDA Center of Toxicological Research have begun a collaborative effort to develop techniques for high-throughput, rapid screening of existing and yet-to-be developed nanomaterials. To accomplish this the Arkansas Research [...]

Dynamic Nanoindentation Analysis using Generalized Maxwell Model for Viscoelastic Materials Characterization

Yuya P.A., Patel N.G., Clarkson University, US

Nanoindentation has become a very useful tool for materials properties characterization at nanoscale. The Kelvin-Voigt (two-parameter) solid has been used as the conventional model for the tip-sample forces for viscoelastic contact where the sample stiffness [...]