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Unraveling Complex Hysteresis Phenomenon in 1,2-Dipalmitoyl-sn-Glycero-3-Phosphocholine Monolayer: Insight into Factors Influencing Surface Dynamics

Overview
Journal Int J Mol Sci
Publisher MDPI
Date 2023 Nov 25
PMID 38003442
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Abstract

This study explores the hysteresis phenomenon in DPPC (1,2-dipalmitoyl-sn-glycero-3-phosphocholine) monolayers, considering several variables, including temperature, compression and expansion rates, residence time, and subphase content. The investigation focuses on analyzing the influence of these variables on key indicators such as the π-A isotherm curve, loop area, and compression modulus. By employing the Langmuir-Blodgett technique, the findings reveal that all the examined factors significantly affect the aforementioned parameters. Notably, the hysteresis loop, representing dissipated energy, provides valuable insights into the monolayer's viscoelasticity, molecular packing, phase transition changes, and resistance during the isocycle process. These findings contribute to a comprehensive understanding of the structural and dynamic properties of DPPC monolayers, offering insights into their behavior under varying conditions. Moreover, the knowledge gained from this study can aid in the development of precise models and strategies for controlling and manipulating monolayer properties, with potential applications in drug delivery systems, surface coatings, as well as further investigation into air penetration into alveoli and the blinking mechanism.

References
1.
Bykov A, Guzman E, Rubio R, Krycki M, Milyaeva O, Noskov B . Influence of temperature on dynamic surface properties of spread DPPC monolayers in a broad range of surface pressures. Chem Phys Lipids. 2019; 225:104812. DOI: 10.1016/j.chemphyslip.2019.104812. View

2.
Butovich I, Arciniega J, Wojtowicz J . Meibomian lipid films and the impact of temperature. Invest Ophthalmol Vis Sci. 2010; 51(11):5508-18. PMC: 3061497. DOI: 10.1167/iovs.10-5419. View

3.
Arciniega J, Uchiyama E, Butovich I . Disruption and destabilization of meibomian lipid films caused by increasing amounts of ceramides and cholesterol. Invest Ophthalmol Vis Sci. 2013; 54(2):1352-60. PMC: 3597190. DOI: 10.1167/iovs.12-10662. View

4.
Patterson M, Vogel H, Prenner E . The effect of repeated lateral compression and expansions mimicking blinking on selected tear film polar lipid monofilms. Biochim Biophys Acta Biomembr. 2016; 1859(3):319-330. DOI: 10.1016/j.bbamem.2016.12.010. View

5.
Notter R, Taubold R, Mavis R . Hysteresis in saturated phospholipid films and its potential relevance for lung surfactant function in vivo. Exp Lung Res. 1982; 3(2):109-27. DOI: 10.3109/01902148209063286. View