Model analysis of surfactant–polymer interaction as cooperative ligand binding to linear lattice

Nishio, Tomoko; Shimizu, Toshio

doi:10.1016/j.bpc.2005.03.011

Cited by 20 publications

(39 citation statements)

References 18 publications

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“…In the last decades, several binding isotherms have been derived with the aim of describing the binding of small amphiphilic molecules to polyelectrolytes [24][25][26][27][28][29][30][31]. From the binding isotherm not only the speciation of the system can be deduced, i.e., the amount of free and bound surfactants as well as occupied polymeric binding sites, but it provides binding constants and free energies.…”

Section: Binding Isothermsmentioning

confidence: 99%

Co-assembly in chitosan–surfactant mixtures: thermodynamics, structures, interfacial properties and applications

Chiappisi

Gradzielski

2015

Advances in Colloid and Interface Science

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Section: Binding Isothermsmentioning

confidence: 99%

Co-assembly in chitosan–surfactant mixtures: thermodynamics, structures, interfacial properties and applications

Chiappisi

Gradzielski

2015

Advances in Colloid and Interface Science

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“…The binding isotherm by our previous scheme with a matrix method is also presented in the case of n = 2 in figure 4 and figure 5 [10].…”

Section: Analytical Solutionsmentioning

confidence: 99%

“…The effect of steric hindrance due to head group size should be taken into account in some systems [8,9]. Data fittings using matrix method to this modified binding model show that this approach is available to the analysis of binding isotherms to stiff polyions [10]. Furthermore, it is important to consider the effect of polyion flexibility on the surfactant binding to understand several experimental studies [11][12][13].…”

Section: Introductionmentioning

confidence: 99%

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A model study of cooperative binding of ionic surfactants to oppositely charged flexible polyions

Nishio¹,

Shimizu²,

Yoshida³

et al. 2014

Condens. Matter Phys.

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A novel statistical model for the cooperative binding of monomeric ligands to a linear lattice is developed to study the interaction of ionic surfactant molecules with flexible polyion chain in dilute solution. Electrostatic binding of a ligand to a site on the polyion and hydrophobic associations between the neighboring bound ligands are assumed to be stochastic processes. Ligand association separated by several lattice points within defined width is introduced for the flexible polyion. Model calculations by the Monte Carlo method are carried out to investigate the binding behavior. The hypothesis on the ligand association and its width on the chain are of importance in determining critical aggregation concentration and binding isotherm. The results are reasonable for the interpretations of several surfactant-flexible polyion binding experiments. The implications of the approach are presented and discussed.

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“…McGhee and von Hippel [37] derived a model for predicting the binding of large ligands to a one-dimensional lattice-like macromolecule of infinite length. This result was followed by results for models of finite lattices [38], systems with binding sites not homogeneously distributed throughout the macromolecule [39], systems in which there are interactions between ligands bound to the polymer [40][41][42][43][44][45][46][47], different classes of binding sites present in the macromolecule [48], and systems with the binding of flexible branched oligopolymers [49], to cite some examples.…”

Section: Introductionmentioning

confidence: 98%

Noncooperative thermodynamics and kinetic models of ligand binding to polymers: Connecting McGhee–von Hippel model with the Tonks gas model

2020

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Ligand binding to polymers modifies the physical and chemical properties of the polymers, leading to physical, chemical, and biological implications. McGhee and von Hippel obtained the equilibrium coverage as a function of the ligand affinity, through the computation of the possible binding sites for the ligand. Here, we complete this theory deriving the kinetic model for the ligand-binding dynamics and the associated equilibrium chemical potential, which turns out to be of the Tonks gas model type. At low coverage, the Tonks chemical potential becomes the Fermi chemical potential and even the ideal gas chemical potential. We also discuss kinetic models associated with these chemical potentials. These results clarify the kinetic models of ligand binding, their relations with the chemical potentials, and their range of validity. Our results highlight the inaccuracy of ideal and simplified kinetic approaches for medium and high coverages.

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Model analysis of surfactant–polymer interaction as cooperative ligand binding to linear lattice

Cited by 20 publications

References 18 publications

Co-assembly in chitosan–surfactant mixtures: thermodynamics, structures, interfacial properties and applications

Co-assembly in chitosan–surfactant mixtures: thermodynamics, structures, interfacial properties and applications

A model study of cooperative binding of ionic surfactants to oppositely charged flexible polyions

Noncooperative thermodynamics and kinetic models of ligand binding to polymers: Connecting McGhee–von Hippel model with the Tonks gas model

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