Dynamic surface properties of pulmonary surfactant proteins SP-B and SP-C and their mixtures with dipalmitoylphosphatidylcholine.


Dynamic cyclic surface pressure (pi)-area measurements were performed on surfactant proteins SP-B and SP-C in pure and binary spread films with dipalmitoylphosphatidylcholine (DPPC). When the films of pure SP-B and SP-C were compressed beyond their collapse points (about 40 mN m-1), no appreciable irreversible loss of material occurred and the successive… (More)


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