DLS – TechConnect Briefs

Helping nano-entities discover their nano-identity

Castro A., Leeman M., Runyon J.R., Nilsson L., Ulmius Storm M., SOLVE Research and Consultancy AB, SE

Nanoscale materials are becoming increasingly prevalent in our lives. The strategies required to characterize the properties and performance of nanoscale materials can be as unique as the material itself. We have experienced that separation of [...]

Multiangle dynamic light scattering for the improvement of multimodal and polydisperse particle size distribution measurements

Boualem A., Ferre C., Jabloun M., Jalocha A., Naiim M., Ravier P., CILAS, FR

This work brings a new and improving method to the determination of multimodal and polydisperse particle size distribution by Dynamic Light Scattering. In this context, we develop a Bayesian method for the estimation of the [...]

Formation of complex nanoparticles from a spherical protein (BSA) and two polycations (PDL with two molecular weights) using coacervation method of the polyelectrolytes

Maldonado L., Sadeghi R., Kokini J., Purdue University, US

Complex nanoparticles (CNPs) were formed by mixing Bovine Serum Albumin (BSA) and Poly-D-Lysine with low (LMW-PDL) and high molecular weights (HMW-PDL). Since BSA and both PDL biopolymers in neutral and alkaline pHs are oppositely charged [...]

Highly Spherical Gold Nanoparticles by Laser Pulse Heating

Cavicchi R.E., Meier D.C., Presser C., Guha S., National Institute of Standards and Technology, US

Methods continue to be developed for improving the size and shape uniformity of Au nanoparticles (NP), however, fabricated NPs tend to be faceted and not highly spherical. We present results that show that the faceted [...]

Multi-Parameter Characterization of Nanoparticle Dispersions by Size, Count and Scattering Intensity

Griffiths D., Bernt W., Hole P., NanoSight USA, US

Nanoparticle Tracking Analysis (NTA) is a method that has gained increasing popularity for the study of nanoparticle dispersions, providing high-resolution particle size analysis as well as a direct measure of particle count or concentration. By [...]

Conformation of pH Responsive Alternating Copolymers and Self-Assembly in Nanoarchitectures

Chan A.S.W., Groves M., Malardier-Jugroot C., Royal Military College of Canada, CA

Our research focuses on the characterization of the association and the properties in aqueous solution of nanostructures composed of amphiphilic alternating copolymers. These copolymers are composed of a pH sensitive hydrophilic group, maleic anhydride alternating [...]