MEASUREMENT OF THE INTERFACIAL PROPERTIES OF LUNG SURFACTANT

The classical methods used to investigate the surface activity of lung surfactant are the Langmuir-Wilhelmy surface balance and the pulsatin g bubble surfactometer. aver the past few years, it has become increas ingly apparent that these methods are inadequate in many respects. The se shortcomings, however, have been overcome by recent developments in lung surfactant methodologies: the captive bubble surfactometer and a xisymmetric drop shape analysis.