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Sreeja KK, Ipsen JH, Sunil Kumar PB. Curvature inducing macroion condensation driven shape changes of fluid vesicles. J Chem Phys. 2015;143(19):194902doi: 10.1063/1.4935596.
Sreeja, K. K., Ipsen, J. H., & Sunil Kumar, P. B. (2015). Curvature inducing macroion condensation driven shape changes of fluid vesicles. The Journal of chemical physics, 143(19), 194902. https://doi.org/10.1063/1.4935596
Sreeja, K K, et al. "Curvature inducing macroion condensation driven shape changes of fluid vesicles." The Journal of chemical physics vol. 143,19 (2015): 194902. doi: https://doi.org/10.1063/1.4935596
Sreeja KK, Ipsen JH, Sunil Kumar PB. Curvature inducing macroion condensation driven shape changes of fluid vesicles. J Chem Phys. 2015 Nov 21;143(19):194902. doi: 10.1063/1.4935596. PMID: 26590553.
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J Chem Phys. 2015 Nov 21;143(19):194902. doi: 10.1063/1.4935596.

Curvature inducing macroion condensation driven shape changes of fluid vesicles.

The Journal of chemical physics

K K Sreeja, John H Ipsen, P B Sunil Kumar

Affiliations

  1. Department of Physics, Indian Institute of Technology Madras, Chennai 600036, India.
  2. Department of Physics and Chemistry, MEMPHYS-Center for Biomembrane Physics, University of Southern Denmark, Campusvej 55, DK-5230 Odense M, Denmark.

PMID: 26590553 DOI: 10.1063/1.4935596

Abstract

We study the effect of curvature inducing macroion condensation on the shapes of charged deformable fluid interfaces using dynamically triangulated Monte Carlo simulations. In the weak electrostatic coupling regime, surface charges are weakly screened and the conformations of a vesicle, with fixed spherical topology, depend on the charge-charge interaction on the surface. While in the strong coupling regime, condensation driven curvature induction plays a dominant role in determining the conformations of these surfaces. Condensation itself is observed to be dependent on the induced curvature, with larger induced curvatures favoring increased condensation. We show that both curvature generation and curvature sensing, induced by the interplay of electrostatics and curvature energy, contribute to determination of the vesicle configurations.

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