Holographic Nanoparticle Tracking Analysis with DAISY

DAISY is Holtra's label-free analytical instrument for nanoparticles in liquid samples. Like conventional nanoparticle tracking analysis (NTA), it reports size and concentration. But through precise measurement of the particles optical properties, it also measures the density (via refractive index) and internal mass distribution of the particles, enabling separation of different particle populations: extracellular vesicles from lipoproteins, protein aggregates from oil droplets, single virus particles from aggregates.