Monodisperse

Monodisperse refers to a system of particles or droplets that are all nearly identical in size. In colloid and particle technology, a distribution is considered monodisperse when the deviation from the mean is small and particle sizes are closely grouped. The term is mainly used in polymer chemistry, latex dispersions, nanoparticles, and calibration materials. Monodisperse samples simplify characterization and reaction control because surface area, sedimentation rate, and reactive area are well defined. Merriam-Webster defines monodisperse systems as those whose dispersed particles are all of the same size. In filtration, a monodisperse particle distribution makes it easier to select the filter medium because the separation limit can be defined more precisely. Such systems are often used to qualify filter media and determine the retention rate for a specific particle size.