| http://www.w3.org/ns/prov#value | - By way of example, raft aggregation may be facilitated in vivo or in vitro by attaching ligands for particular cell surface moieties to paramagnetic particles, exposing the ligand-bearing particles to the cells, and shortly thereafter or simultaneously applying a force, such as a magnetic field to assist polarizing the ligated moieties (e.g., receptors) and concentrating cells in a small volume.
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