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Supported lipid bilayers (SLBs) and their increasing complexity and features. (a) A simple SLB with glycolipid receptors. (b) A SLB made from reconstituted lipids and protein receptors. (c) Cushioned SLB to enhance protein receptor mobility. (d) Mixed liposome and cell-derived SLB containing polyethylene glycol cushions. (e) Plasma membrane-derived SLB on polymer cushion
