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High-resolution imaging for DPPC/DPPG/SP-C (80:20:0.4 mol%) monolayer lipid films. (a) 3D topography image with 12 nm NPs; (b) 3D topography image with 136 nm NPs; (c) Phase images showing 136 nm NPs with higher clarity; (d) Height profile analysis for 136 nm NPs clusters. To see this figure in color, go online.
