On September 16th, research carried out in the Advanced Materials Characterization Lab was presented at the Hotel DuPont during a conference sponsored by Wyatt Technologies. Wyatt manufactures the Dynamic Light Scattering (DLS) machine that is operated in the AMCL. The technique, also known as quasi-elastic light scattering (QELS), allows researchers to measure the hydrodynamic radius of macromolecules. The machine, called the Möbiuζ, can also determine the molecular weight and zeta potential of nanoparticles and macromolecules. The conference was held in order to bring together scientists from various fields that share the common bond of working with Wyatt’s assortment of light scattering technologies.
Alongside scientists from DuPont, Merck, Dow Chemical, and the United States Army, researchers from the University of Delaware were also in attendance. This conference provided attendees with the opportunity to discuss their research and trade tips on how to obtain the clearest results from the group of machines made by Wyatt. Gerald Poirier, the Director of the Advanced Materials Characterization Lab, attended this conference in order to discover new applications for the instrument housed in his lab. A diverse range of talks were delivered during the meeting that showcased the techniques employed by government and industry leaders in preparing samples for DLS measurements. Ron Cichocki, an undergraduate researcher presently working in the AMCL, presented a poster (Link Below) detailing the efficacy of the DLS approach in the characterization of various metallic nanoparticle systems. The poster was meant to verify DLS measurements collected at the AMCL by pairing the data tables with TEM (Transmission Electron Microscopy) images, also taken in the ISE Lab.
This conference provided a great learning opportunity for all parties involved. Amongst others, a representative from Dow Chemical gave a talk concerning recent research on using various surfactants in the suspension of TiO2 nanoparticles in modern day paint products. Chemists from Merck spoke about the differing methods involved in preparing potential pharmaceutical grade molecules for characterization via DLS measurements. After some round table discussions that were geared towards specific facets of macromolecule development and characterization, the meeting was adjourned. The researchers from the University of Delaware walked away with a better understanding of the DLS technique and the various applications of the Möbiuζ DLS machine, operated in the AMCL.