stability – Page 3 – TechConnect Briefs

Photochemical Alteration of the Stability of Polymer Nano-Agglomerates

Seipenbusch M., Rothenbacher S., Weber A.P., Salas-Vicente J., Braun A.M., Kasper G., University of Karlsruhe, DE

Interparticle adhesion in the nano-regime leads to undesired stable agglomerates in particulate products. On one hand, the high surface energies of nanoparticles favor the reduction of overall surface area by maximization of the number of [...]

Nanometre particle sizing and stability measurement with tabletop PCCS

Laemmle W., Sympatec GmbH, DE

Modern materials very often derive their properties from nano-particles. This implements a fast growing demand for control of particle size in this field. The most popular technique to do so is PCS, photon correlation spectroscopy. [...]

Fate, Transport, and Toxicity of Nanomaterials in Drinking Water

Zhang Y., Koeneman B.A., Chen Y., Westerhoff P., Capco D.G., Crittenden J., Arizona State University, US

The objective of this research is to evaluate the potential risk of human exposure to nanomaterials in drinking water by examining three issues: 1) characteristics and stability of nanomaterials in the water environment; 2) removal [...]

Stable Self-Assembled Monolayers for sensitive biosensor interfaces

Jans H., Jans K., Jans H., Jans K., Bonroy K., Frederix F., Reekmans G., Maes G., Borghs G., IMEC, BE

One of the most important requirements for making advanced biosensors and biochips is the attachment of biological receptors onto a solid support. For this reason, it is important to construct a stable and well-characterized interface [...]

Shape-controlled synthesis and functionalization of gold nanoparticles for hyperthermia applications

Van de Broek B., Frederix F., Bonroy K., Jans H., Maes G., Borghs G., IMEC, BE

Control of nanoparticle shape may initially seem like a scientific curiosity, but its goal goes far beyond aesthetic appeal. The shape not only influences the chemical and optical properties of metal nanoparticles, but also their [...]

Stability of micro and nano devices actuated by Casimir forces

Hernández J., Esquivel-Sirvent R., Instituto de Fisica, UNAM, MX

The effect of the Casimir force in micro and nano electromechanical systems (MEMS/NEMS) is examined taking fully into account the dielectric properties of the materials as well as the finite thickness of movable elements in [...]

Reliability of Self-assembled Hydropobic Coatings: Chemical Resistance and Mechanical Durability

Kobrin B., Zhang T., Grimes M.T., Chong K., Nowak R., Chinn J., Applied Microstructures, US

We report on hydrophobic self-assembled monolayers (SAM) with an improved chemical and mechanical stability on both Al and Si substrates. These improvements are obtained using a relatively new molecular vapor deposition method - MVDTM, which [...]

Spontaneously Forming Unilamellar Nano-Sized Vesicles – Polydispersity, Size, Shape and Stability

Nieh M-P, Raghunathan V.A., Huang C-Y, Pencer J., Harroun T., Katsaras J., National Research Council at Canada, CA

Unilamellar vesicles (ULV) made up entirely of biologically relevant materials can serve as carriers for drug delivery or gene therapy. Compared to extrusion and sonication methods, traditionally used for producing ULV, spontaneously forming ULV offer [...]

Acid Transformation of TiO2 Nanotubes to Nanoparticles

Bavykin D.V., Lapkin A.A., Friedrich J.M., Walsh F.C., University of Bath, UK

Transformation of TiO2 nanotubes in the presence of sulfuric acid to TiO2 nanoparticles was studied. The possible physico - chemical reasons for such transformations are critically discussed.

A Comparison of Straight- and Branch-Chained Lipid Bilayers for the Static and Dynamic Properties: A molecular dynamics study

Shinoda W., Mikami M., Baba T., Hato M., National Institute of Advanced Industrial Science & Technology, JP

A bilayer composed of branched chain lipid molecules is generally believed to have high bilayer stability and low ion leakage. To understand how the chain branching affects the bilayer properties on the molecular level, two [...]