Thermodynamics of interaction of ionic liquids with lipid monolayer

Biophysics Reviews
G BhattacharyaS K Ghosh

Abstract

Understanding the interaction of ionic liquids with cellular membrane becomes utterly important to comprehend the activities of these liquids in living organisms. Lipid monolayer formed at the air-water interface is employed as a model system to follow this interaction by investigating important thermodynamic parameters. The penetration kinetics of the imidazolium-based ionic liquid 1-decyl-3-methylimidazolium tetrafluoroborate ([DMIM][BF4]) into the zwitterionic 1,2-dipalmitoyl-sn-glycero-3-phosphocholine (DPPC) lipid layer is found to follow the Boltzmann-like equation that reveals the characteristic time constant which is observed to be the function of initial surface pressure. The enthalpy and entropy calculated from temperature-dependent pressure-area isotherms of the monolayer show that the added ionic liquids bring about a disordering effect in the lipid film. The change in Gibbs free energy indicates that an ionic liquid with longer chain has a far greater disordering effect compared to an ionic liquid with shorter chain. The differential scanning calorimetric measurement on a multilamellar vesicle system shows the main phase transition temperature to shift to a lower value, which, again, indicates the disordering effec...Continue Reading

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Citations

Sep 17, 2020·Biophysics Reviews·Pallavi KumariAntonio Benedetto
Jul 1, 2020·Chemphyschem : a European Journal of Chemical Physics and Physical Chemistry·A F EftaihaMatthew F Paige
Apr 28, 2020·Physical Chemistry Chemical Physics : PCCP·Steffen BornemannRoland Winter
Aug 21, 2020·The European Physical Journal. E, Soft Matter·Shuverthi De SarkarSajal K Ghosh
Nov 2, 2019·Biochimica Et Biophysica Acta. Biomembranes·Karishma BakshiSajal Kumar Ghosh
Dec 13, 2019·Langmuir : the ACS Journal of Surfaces and Colloids·S MitraS K Ghosh
Mar 3, 2021·Biochimica Et Biophysica Acta. Biomembranes·Saheli MitraSajal Kumar Ghosh
Jun 27, 2018·Chemistry and Physics of Lipids·G BhattacharyaS K Ghosh
May 15, 2021·Biochimica Et Biophysica Acta. Biomembranes·Ritika GuptaSajal K Ghosh
Jul 9, 2018·ACS Biomaterials Science & Engineering·Kelly N IbsenSamir Mitragotri
Mar 7, 2018·Langmuir : the ACS Journal of Surfaces and Colloids·Antonio Benedetto, Pietro Ballone
Oct 7, 2021·The Journal of Physical Chemistry Letters·Ju LiuSuojiang Zhang
Nov 25, 2021·ACS Applied Materials & Interfaces·Priya MandalSajal K Ghosh

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Methods Mentioned

BETA
quartz crystal microbalance
neutron scattering
X-ray
differential scanning calorimetry

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