期刊
JOURNAL OF OLEO SCIENCE
卷 65, 期 5, 页码 385-397出版社
JAPAN OIL CHEMISTS SOC
DOI: 10.5650/jos.ess15261
关键词
collapse; water-air interface; Langmuir monolayer; isotherms; X-ray reflectivity; fluorescence microscopy
资金
- National Research Foundation of Korea [2011-0031932, 2013M2A2A6043677, 2011-0017539] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
Langmuir monolayers of amphiphilic molecules at an air-water interface can be compressed laterally to achieve high surface density. However, compression beyond a certain threshold causes the monolayer to become unstable, which may lead to the formation of collapsed states with topographical differences that are associated with the structures and mechanical properties of the constituent molecules of the monolayer. The mechanisms and collapsed structures can differ owing to differences in experimental conditions, i.e., temperature, ion-content, the pH of subphase, or compression rate; in addition, the type of constituent molecules, i.e., biological lipids or chemical surfactants, has an effect. In this review, we compare studies concerning several aspects of collapse, from basic concepts and theoretical mechanisms to experimental visualization of the monolayer topography. In addition, techniques often employed to study this subject are discussed in this review.
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