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Behavior and viability of fluorescent MB-MDA-231 breast cancer cells seeded onto membranes. Cells on membranes assembled from 20% KLAK PA solution attach to the surface and are rounded (a) immediately after seeding but (b) migrate and eventually die after at later time points. (c) Membranes assembled from 20% KLAK PA and 50% KLAK PA solutions are significantly cytotoxic after only 2 h, while the associated membrane-conditioned media is not cytotoxic.
