Boundary lubrication imparted by pleural surfactants and their identification.

  title={Boundary lubrication imparted by pleural surfactants and their identification.},
  author={Brian A. Hills and Bruce D. Butler and Robert E. Barrow},
  journal={Journal of applied physiology: respiratory, environmental and exercise physiology},
  volume={53 2},
Phospholipids have been identified in pleural washings from live dogs and were found to include phosphatidylethanolamines, sphingomyelin, and, predominantly, phosphatidylcholines. The extracts were highly surface active when studied on the Langmuir trough using a Wilhelmy balance and produced surface tension/area loops similar to those for synthetic phosphatidylcholines and phosphatidylethanolamines but differing from the pure dipalmitoyl derivative (DPL). The extracts, the synthetic… CONTINUE READING