Wettability of DPPC Monolayers Deposited from the Titanium Dioxide–Chitosan–Hyaluronic Acid Subphases on Glass
Department of Interfacial Phenomena, Faculty of Chemistry, Maria Curie-Skłodowska University, 20-031 Lublin, Poland
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Colloids Interfaces 2019, 3(1), 15; https://doi.org/10.3390/colloids3010015
Received: 30 December 2018 / Revised: 17 January 2019 / Accepted: 18 January 2019 / Published: 23 January 2019
(This article belongs to the Special Issue Selected Papers from XVI Polish–Ukrainian Symposium on Theoretical and Experimental Studies of Interfacial Phenomena and their Technological Applications)
The investigations were carried out to determine wettability of the 1,2-dipalmitoyl-sn-glycero-3-phosphocholine (DPPC) monolayers transferred from the liquid subphases containing chitosan (Ch), hyaluronic acid (HA), and/or titanium dioxide (TiO2) to a glass support by means of the Langmuir–Blodgett (LB) technique. For comparative purposes, the analysis of the plates surfaces emerged from the analogous subphases without the phospholipid film was also made. Characterization of the DPPC monolayers was based on the contact angle measurements using three test liquids (water, formamide, diiodomethane) and a simulated body fluid (SBF) solution in which the concentration of ions was close to that of human plasma. After deposition of the DPPC monolayers on the glass plates, a significant increase in the contact angles of all the probe liquids was observed compared to the plates pulled out from the given subphase without floating DPPC. The presence of phospholipid monolayer increased the hydrophobic character of the surface due to orientation of its molecules with hydrocarbon chains towards the air. In addition, the components of the subphase attached along with DPPC to the glass support modify the surface polarity. The largest changes were observed in the presence of TiO2.
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Keywords:
wettability; contact angle; monolayer; phospholipid DPPC; titanium dioxide; chitosan; hyaluronic acid
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MDPI and ACS Style
Ładniak, A.; Jurak, M.; Wiącek, A.E. Wettability of DPPC Monolayers Deposited from the Titanium Dioxide–Chitosan–Hyaluronic Acid Subphases on Glass. Colloids Interfaces 2019, 3, 15. https://doi.org/10.3390/colloids3010015
AMA Style
Ładniak A, Jurak M, Wiącek AE. Wettability of DPPC Monolayers Deposited from the Titanium Dioxide–Chitosan–Hyaluronic Acid Subphases on Glass. Colloids and Interfaces. 2019; 3(1):15. https://doi.org/10.3390/colloids3010015
Chicago/Turabian StyleŁadniak, Agata; Jurak, Małgorzata; Wiącek, Agnieszka E. 2019. "Wettability of DPPC Monolayers Deposited from the Titanium Dioxide–Chitosan–Hyaluronic Acid Subphases on Glass" Colloids Interfaces 3, no. 1: 15. https://doi.org/10.3390/colloids3010015
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