<p>If you search for exosomes and immuno-affinity purification (<strong>IP</strong>) you&#39;ll find a lot of info. IP is used to capture and isolate organelles like lysosomes (Lyso-IP) and mitichondria (Mito-IP). Typically there are kits for this using magnetic beads with an antibody attached to selectively pull down the organelle of interest that have been engineered to express a particular epitope which binds to the antibody..</p>