Characterization of the Liquid-Expanded to Liquid-Condensed Phase Transition of Monolayers by Means of Compressibility

Monolayer Characteristics of Chitosan Assembled in Langmuir Films Mixed With Arachidic Acid

“…This is because there may occur some reorientation of CHS molecules in the mixed films after achieving the liquid phase. Such liquid expanded phases were also reported for several other molecules in Langmuir monolayer and explained due to the occurrence of certain reorientation of the constituent molecule in the monolayer [34][35] . In order to have more information about the AA-CHS mixed monolayer, we have studied the mixing behaviour using additivity and surface phase rule [36][37] .…”

New Features on the Phase Transitions of Behenic Acid Monolayers as Unveiled by 2D‐Compressibility Coefficient

“…Two-dimensional compressibility of molecular monolayers, expressed by compressibility coefficient, was calculated by the following equation. 25,26 FT-IR spectra were collected with an IFS-66v/S FTIR spectrometer (Bruker) with an MCT detector cooled with liquid nitrogen. The sample chamber was under vacuum condition.…”

“…Two-dimensional compressibility has been proven to be a sensitive quantity to characterize phase transitions of Langmuir films. 25,26 It has been able to detect some non-obvious phase transitions from a liquid-expanded (LE) to a liquid-condensed (LC) state. 25 In this work, two-dimensional compressibility β is used to detect compressional property of behenic acid monolayers on the air-water interface.…”

“…25,26 It has been able to detect some non-obvious phase transitions from a liquid-expanded (LE) to a liquid-condensed (LC) state. 25 In this work, two-dimensional compressibility β is used to detect compressional property of behenic acid monolayers on the air-water interface. The characteristics of hydrogen-bonded water molecules confined in the local hydrophilic headgroup region of the amphoteric molecules have been also investigated to understand their role in the compressional property.…”

Development of a fluid functionalized lipidic matrix applied to direct in situ polynucleotide detection

“…The analysis of the two-dimensional compressibility parameter as a function of surface pressure confirms this evolution in the organization state. This parameter is more accurate than an isotherm to characterize the LE-LC phase transition (Keller, 2003;Yu et al, 2002). The overall shape of the π-C s control curve (Fig.…”