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AFM topographic images of 7:3 DPPC:POPG monolayers with 10 wt% (A1 and A2) SP-B 1–25 and (B) SP-B 1–25Nflex monolayers transferred at 55 mN/m from a 40 wt% glycerol subphase at 25°C (z-scale 5 nm). All nanosilos are ∼5 nm above the height of the monolayer.
