ENGINEERING AND SCIENCE RESEARCH LABS AND EQUIPMENT
Associate Professor, Mechanical Engineering Department
The Zetasizer Nano-ZS uses dynamic light scattering (DLS) to measure size, molecular weight, and zeta potential of dispersed particles and molecules in solution. The temperature range covered is 2 to 90°C. DLS is a noninvasive technique that measures a large population of particles in a very short time period, with no manipulation of the surrounding medium. This equipment can measure particle sizes as small as 0.6 nm and as large as 6 μm, across a wide range of sample concentrations. Because of the sensitivity to trace amounts of aggregates and the ability to resolve multiple particle sizes, DLS is ideally suited for colloidal sciences and macromolecular applications that necessitate low sample concentration and volume. It is a benchtop system with 4 mW He-Ne laser (633 nm).