Effects of Metal Cations on the Dynamic Characteristics of a Phospholipid Thin Film at an Air/Water Interface

Autor:	Mamoru Kamiya, Toshio Ishii, Kenichi Yoshikawa, Masakazu Makino
Rok vydání:	1996
Předmět:	Air water interface Sodium Phospholipid Analytical chemistry chemistry.chemical_element Thermodynamics General Chemistry Surface pressure Dissociation (chemistry) Ion Metal chemistry.chemical_compound chemistry visual_art visual_art.visual_art_medium Thin film
Zdroj:	Scopus-Elsevier
ISSN:	1348-0634 0009-2673
DOI:	10.1246/bcsj.69.3429
Popis:	We measured the time-dependent surface pressure of a dioleoylphosphatidylcholine film at an air/water interface. Our results indicate that: (i) the surface pressure of the thin film traces a closed hysteresis loop accompanied by repetitive cycles of compression and expansion, and (ii) the area of the hysteresis loop markedly increases in the presence of sodium ions. We propose a kinetic model for this phenomenon which includes cooperative aggregation/dissociation at the air/water interface. The experimental findings have been successfully reproduced with the aid of a computer simulation based on this theoretical model.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::67ee143faad2977496d3e8546c8ff0c8 https://doi.org/10.1246/bcsj.69.3429 Zobrazit plný text záznamu