Unequivocal Evidence for a Liquid−Gas Phase Transition in Monolayers of Decanol Adsorbed at the Air/Water Interface

1999 ◽  
Vol 121 (11) ◽  
pp. 2615-2616 ◽  
Author(s):  
Brian D. Casson ◽  
Colin D. Bain
Keyword(s):  
Phase Transition ◽  
Gas Phase ◽  
Water Interface ◽  
Air Water Interface

Observation of a Liquid−Gas Phase Transition in Monolayers of Alkyltrimethylammonium Alkyl Sulfates Adsorbed at the Air/Water Interface

2005 ◽  
Vol 109 (2) ◽  
pp. 872-878 ◽  
Author(s):  
Imre Varga ◽  
Tamás Keszthelyi ◽  
Róbert Mészáros ◽  
Orsolya Hakkel ◽  
Tibor Gilányi
Keyword(s):  
Phase Transition ◽  
Gas Phase ◽  
Water Interface ◽  
Air Water Interface ◽  
Alkyl Sulfates

Temperature dependence of dipalmitoyl phosphatidylcholine monolayer stability

1981 ◽  
Vol 51 (5) ◽  
pp. 1108-1114 ◽  
Author(s):  
J. Goerke ◽  
J. Gonzales
Keyword(s):  
Phase Transition ◽  
Lung Surfactant ◽  
Principal Component ◽  
Water Interface ◽  
Dipalmitoyl Phosphatidylcholine ◽  
Phase Transition Temperatures ◽  
Air Water Interface ◽  
Different Temperatures ◽  
Monolayer Stability ◽  
Isolated Rat

Dipalmitoyl phosphatidylcholine is the principal component of lung surfactant, and knowledge of its behavior as a film spread at the air-water interface is essential for understanding how lung surfactant itself works. We therefore studied the collapse rates of very low surface tension air-water monolayers of dipalmitoyl, dimyristoyl, and palmitoyl-myristoyl phosphatidylcholines at different temperatures. In each case we found that the monolayers abruptly became unstable at temperature 3–4 degree C above their bulk lipid-water phase transition temperatures (Tc). This accords with a comparable increase in Tc occurring in bulk systems subjected to high pressure. These findings are also consistent with the behavior of isolated rat lungs, which have been found to require higher transmural pressures to maintain a given volume on deflation when kept at temperature above the Tc of dipalmitoyl phosphatidylcholine.

Phase transition in adsorbed monolayers of 2-hydroxyethyl laurate at the air-water interface

2000 ◽  
Vol 171 (1-3) ◽  
pp. 105-113 ◽  
Author(s):  
Md.Mufazzal Hossain ◽  
Masaaki Yoshida ◽  
Ken-ichi Iimura ◽  
Noboru Suzuki ◽  
Teiji Kato
Keyword(s):  
Phase Transition ◽  
Water Interface ◽  
Air Water Interface
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