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Amphiphilic polymers employed for cell surface modifications. (a) Chemical structures of amphiphilic polymers: polyethylene glycol-conjugated phospholipid (PEG-lipid). (b) Cell surface modification by hydrophobic interaction. Cell surfaces can be modified with PEG-lipid that interacts with the membrane through hydrophobic interactions. (c) Confocal laser scanning microscopy image of a CCRF-CEM cell that was modified with polyA20–PEG-lipids and then reacted with FITC-polyT20.
