​Particle sizing

Particle size : comparing dimensions of solid particles (flecks), liquid particles (droplets), or gaseous particles (bubbles). applies to colloidal particles, particles in ecology, particles present in granular material (whether airborne or not), and particles that form a granular material (see also grain size).

 

The equipment available for use in the Laboratory is listed below:

 

Zetasizer Nano ZSP

 

Used for the measurement of protein size, electrophoretic mobility of proteins, zeta potential of nanoparticles and surfaces, and optionally the microrheology of protein and polymer solutions.
also enables the measurement of the molecular weight and second virial coefficient, A2, of macromolecules and kD, the DLS interaction parameter.
The system can also be used in a flow configuration to operate as a size detector for Size Exclusion Chromatography (SEC) or Field Flow Fractionation (FFF).

 

Mastersizer 3000

 

Laser diffraction particle size analyzer.
particle size distributions for both wet and dry dispersions.
Measuring over the nanometer to millimeter particle size ranges.

 

Nanosight NS300

 

Nanoparticle characterization :
Size distribution and concentration of all types of nanoparticles from 0.01 - 1 µm in diameter.
Contains interchangeable laser modules and motorized filter wheel that enables the analysis of  different fluorescent labels.

 

Qnano Gold

 

Uses Tunable Resistive Pulse Sensing, a technique that allows high-throughput single particle measurements as colloids and/or biomolecular analytes driven through a size-tunable nanopore, one at a time, over a wide particle size range (50 nm – 20μm).
enables particle-by-particle determination of the size, charge and concentration of a wide range of particle types.