Particle Metrix ZetaView NTA
ZetaView is a nanoparticle tracking analysis (NTA) instrument for in vitro measurement of multiple physical parameters including size, concentration, surface charge, and phenotype characteristics of biological nanoparticles such as extracellular vesicles (EVs), exosomes, viruses, or virus-like particles.
NTA captures the Brownian motion of each particle in a recorded video. Based on the different diffusion movements of large and small particles in the surrounding liquid, the hydrodynamic diameter of the particles is determined. Furthermore, the charge state of the particle surface (zeta potential) can be measured via the movement of the particles in an applied electric field.