English

Ion mediated cross-shield driven mucous swelling kinetics

Subcellular Processes 2015-01-23 v2 Soft Condensed Matter Biological Physics

Abstract

We present an experimentally guided, bi-phasic, multi-species ionic gel model to compare and make quantitative predictions on the viscoelastic properties of healthy mucus versus Cystic-Fibrosis infected mucus. The mixture theory consists of the mucus (polymer phase) and water (solvent phase) as well as several different ions: H+^+, Na+^+, Cl^- and Ca2+^{2+}. The model is calibrated with the experimental data of mucus diffusivities. Numerical studies reveal that the Donnan forces are the dominating mechanism driving the mucus swelling/deswelling transition. However, these transitions could be continuous or discontinuous, depending on the complex interplay between ionic bath concentrations, pH, polymer mass in the solvent and the average charge per monomer.

Cite

@article{arxiv.1308.4374,
  title  = {Ion mediated cross-shield driven mucous swelling kinetics},
  author = {Sarthok Sircar and Aaron Fogelson and James Keener},
  journal= {arXiv preprint arXiv:1308.4374},
  year   = {2015}
}

Comments

This paper has been withdrawn because the underlying mathematical model (used in this work) has been completely redone and revised from the sratch. The version used in this work is incorrect. Further, the correct names of the authors who have contributed to this work (in terms of completing the various sections of this work) have been listed

R2 v1 2026-06-22T01:12:17.693Z