Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:dateCreated
1984-6-5
pubmed:abstractText
The phospholipid extracts from each of eleven samples of human amniotic fluid obtained from eleven full-term births were deposited as orientated monolayers adsorbed to glass. The surfaces were found to be rendered hydrophobic with maximum contact angles averaging 54.5 degrees while, upon withdrawing fluid, the edge of the saline pool receded to expose dry surface with minimum contact angles averaging 15.4 degrees. The extracts were found to be surface-active at the liquid-air interface and there was some indication that direct adsorption to solid surfaces was facilitated by calcium ions. It was found that, in all extracts, a continuous layer of saline adjacent to the adsorbed surface would break up spontaneously to expose dry surface when the thickness was reduced to an average of 764 micron, corresponding to several alveolar diameters. This phenomenon is discussed as a possible means of establishing dry patches on the alveolar membrane, especially in the new-born after the fetal alveolar wall has been exposed to the same surfactants in much the same physical form as found in amniotic fluid. Surfactant adsorbed directly to the tissue subphase is suggested as a physical basis for the discontinuity of the aqueous hypophase seen in many electron micrographs of the adult alveolus. This 'de-watering' of the alveolar surface could facilitate gas transfer.
pubmed:commentsCorrections
http://linkedlifedata.com/resource/pubmed/commentcorrection/6546947-124909, http://linkedlifedata.com/resource/pubmed/commentcorrection/6546947-13428781, http://linkedlifedata.com/resource/pubmed/commentcorrection/6546947-13537918, http://linkedlifedata.com/resource/pubmed/commentcorrection/6546947-13649082, http://linkedlifedata.com/resource/pubmed/commentcorrection/6546947-14336204, http://linkedlifedata.com/resource/pubmed/commentcorrection/6546947-14394123, http://linkedlifedata.com/resource/pubmed/commentcorrection/6546947-14861228, http://linkedlifedata.com/resource/pubmed/commentcorrection/6546947-4111904, http://linkedlifedata.com/resource/pubmed/commentcorrection/6546947-474662, http://linkedlifedata.com/resource/pubmed/commentcorrection/6546947-4867416, http://linkedlifedata.com/resource/pubmed/commentcorrection/6546947-4890152, http://linkedlifedata.com/resource/pubmed/commentcorrection/6546947-4904279, http://linkedlifedata.com/resource/pubmed/commentcorrection/6546947-4962241, http://linkedlifedata.com/resource/pubmed/commentcorrection/6546947-5171649, http://linkedlifedata.com/resource/pubmed/commentcorrection/6546947-5764787, http://linkedlifedata.com/resource/pubmed/commentcorrection/6546947-582288, http://linkedlifedata.com/resource/pubmed/commentcorrection/6546947-583077, http://linkedlifedata.com/resource/pubmed/commentcorrection/6546947-583285, http://linkedlifedata.com/resource/pubmed/commentcorrection/6546947-6109119, http://linkedlifedata.com/resource/pubmed/commentcorrection/6546947-6687588, http://linkedlifedata.com/resource/pubmed/commentcorrection/6546947-6826420, http://linkedlifedata.com/resource/pubmed/commentcorrection/6546947-6846549, http://linkedlifedata.com/resource/pubmed/commentcorrection/6546947-6895267, http://linkedlifedata.com/resource/pubmed/commentcorrection/6546947-6896727
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Mar
pubmed:issn
0022-3751
pubmed:author
pubmed:issnType
Print
pubmed:volume
348
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
369-81
pubmed:dateRevised
2009-11-18
pubmed:meshHeading
pubmed:year
1984
pubmed:articleTitle
'De-watering' capabilities of surfactants in human amniotic fluid.
pubmed:publicationType
Journal Article