Particle Metrix sells instruments to measure the size, concentration, zeta potential of nano and micron sized particles such as exosomes (EV) with Nanoparticle Tracking Analysis (NTA) and Dynamic Light scattering (DLS) systems. In addition, the Stabino is designed to measure streaming and zeta potential over a wide range of concentrations. Monitor size with a probe-based DLS instrument with 2x the resolution of traditional DLS instruments. Measure low concentration samples with our ZetaView to determine nano size, concentration and zeta potential, in either light scatter or fluorescence mode.