Surface properties of perfluorodecalin-containing liquid/liquid systems: The influence of Pluronic F-68 dissolved in the aqueous phase

Agata Maria Bąk , Maciej Pilarek , Wioletta Podgórska , Agnieszka Markowska-Radomska , Robert Hubacz

Abstract

Perfluorodecalin (PFD) is extensively applied as liquid carrier of gaseous metabolites in systems for in vitro cultures of various types of cells. The influence of Pluronic F-68 on modification of the surface properties of few liquid/liquid system containing PFD was discussed. Static surface and interfacial tensions (σ) of water/PFD, culture medium/PFD, as well as air/water (referentially) two-phases systems with the aqueous phase contained nonionic 3-block copolymer Pluronic F-68, were measured by the du Noüy ring method at 25 °C and 37 °C. Values of critical micelle concentration (CMC) for Pluronic F-68 dissolved in water/PFD and air/water systems were similar at constant temperature. Smaller value of maximum surface excess (Γ∞) and higher value of minimum surface area per adsorbed molecule (Amin) were obtained for water/PFD, than for water/air system. Increase of temperature from 25 °C to 37 °C resulted in significant decrease of CMC, decrease of Γ∞ and increase of Amin. Calculated value of the standard Gibbs free energy of micellization was negative and became more negative for higher temperature, what indicated that micelles were formed spontaneously and the tendency for micelle formation increased with temperature increase. The Frumkin model fits well the experimentally obtained values of σ, what has been proved by the coefficient of determination equaled to 0.994–0.996.
Author Agata Maria Bąk (FCPE / DCRED)
Agata Maria Bąk,,
- Department of Chemical Reactor Engineering and Dynamics
, Maciej Pilarek (FCPE / DBBE)
Maciej Pilarek,,
- Department of Biotechnology and Bioprocess Engineering
, Wioletta Podgórska (FCPE / DCRED)
Wioletta Podgórska,,
- Department of Chemical Reactor Engineering and Dynamics
, Agnieszka Markowska-Radomska (FCPE / DPKT)
Agnieszka Markowska-Radomska,,
- Department of Process Kinetics and Thermodynamics
, Robert Hubacz (FCPE / DPKT)
Robert Hubacz,,
- Department of Process Kinetics and Thermodynamics
Journal seriesJournal of Fluorine Chemistry, ISSN 0022-1139, (A 30 pkt)
Issue year2018
Vol215
Pages36-43
Publication size in sheets0.5
Keywords in Englishperfluorodecalin, Pluronic F-68, interfacial tension, critical micelle concentration, Frumkin model
ASJC Classification1604 Inorganic Chemistry; 1605 Organic Chemistry; 1606 Physical and Theoretical Chemistry; 2304 Environmental Chemistry; 1303 Biochemistry
DOIDOI:10.1016/j.jfluchem.2018.09.002
URL https://reader.elsevier.com/reader/sd/pii/S002211391830294X?token=579896D9166007EEA3597D06B849FE3215FD2574E91DC816BA37C664B1757B4C86C1930A74A25A2910F45F5CEA1BBEAE
Languageen angielski
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Bąk A. (i in.) - Surface properties of...pdf 840.86 KB
Score (nominal)30
ScoreMinisterial score = 30.0, 23-05-2019, ArticleFromJournal
Publication indicators WoS Citations = 0; Scopus SNIP (Source Normalised Impact per Paper): 2017 = 0.657; WoS Impact Factor: 2017 = 1.879 (2) - 2017=1.862 (5)
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