Technology

Molecular size and molecular weight measurement...

The Zetasizer Nano S is a research grade dynamic light scattering system for sub-micron particle and molecular size and molecular weight measurement that combines performance and versatility with exceptional ease of use. The Zetasizer Nano ZS is a high performance two angle particle and molecular size analyzer for the enhanced detection of aggregates and measurement of small or dilute samples, and samples at very low or high concentration using dynamic light scattering with ‘NIBS’ optics. The ZSP also incorporates a zeta potential analyzer that uses electrophoretic light scattering for particles, molecules and surfaces, and a molecular weight analyzer using static light scattering. The measured parameters are particle and molecule size, translational diusion, electrophoretic mobility, zeta potential of particles at high and low concentrations, viscosity and viscoelasticity of protein and polymer solutions, concentration, MW, A2, kD. Analysis of drug-loaded vesicles could be eectuated by this system for subsequent incorporation in foam, creams, gels for cosmetic and food products.