Collins dictionary.

HTH

Yes
Example:

These results suggest that DEP could 1) be phagocyted by airway epithelial cells and 2) induce a specific inflammatory response. ...
www.uth.tmc.edu/apstracts/1999/lung/January/19L.html

... harsh though it sounds to the civilized ear:

"... IgM and IgG enables macrophages and neutrophils to phagocyte pathogens and then neutralize them more successfully (phagocytosis)..."

HTH,
HC

If you are refering as the subject being a cell like a macrophage, then 'to phagocytize' is the right term. But if you are refering as the subject being antibodies that help a certain target to be taken-up or phagocytized, then 'opsonize' is the right term. Opsonize comes from the Greek meaning to 'help eat', and the field of immunology, opsonins are molecules that help certain cells like macrophages to identify their targets like bacteria. Opsonins are generally antibodies and molecules of the Complement cascade, that not only cause some damage to the target (perforins) but also elicit an imflammatory response (chemokines).