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Dead B16F10 cells adsorbed on a glass substrate modified to give (A) a PEG0 surface; (B) a PEG6 surface; (C) a PEG43 surface; (D) a PEG113 surface; and (E) a MixPEG surface. Here, the surfaces with the living cells were washed with PBS, dried, washed with PBS, and then covered with CM, before the images were taken.
