Fig. 3

Direct visualization and quantitation of viral particles after antibody depletion. a Nanoparticle tracking analysis (Nanosight) of HIV-1_BaL was performed after depletion by 5 monoclonal antibodies. Representative still images from movies are shown. The number of virions identified by red makers is indicated. Nanosight quantification of (b) total particle counts and (c) % capture of viral particles after sorting. Data shown is the average of at least two independent experiments