Repulsion of interfaces due to boundary water

Marčelja, S.; Radić, Nikola

doi:10.1016/0009-2614(76)80567-2

Cited by 572 publications

(351 citation statements)

References 9 publications

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“…Israelachvili and Wennerström [472] point out that the effect of the first water layer should not be called hydration force because it is caused by the interaction between water molecules and the solid surface and not by water-water interactions. In a classic paper Marcelja and Radic proposed an elegant theory to explain the short-range repulsion by a modification of water structure near hydrophilic surfaces [480]. The water molecules near the interface are more ordered than water molecules in the bulk.…”

Section: Hydration Repulsionmentioning

confidence: 99%

Force measurements with the atomic force microscope: Technique, interpretation and applications

Butt

Cappella

Kappl

2005

Surface Science Reports

3,187

2,949

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Section: Hydration Repulsionmentioning

confidence: 99%

Force measurements with the atomic force microscope: Technique, interpretation and applications

Butt

Cappella

Kappl

2005

Surface Science Reports

3,187

2,949

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“…The contribution of thermal undulation motion of the bilayer membrane can be assumed to be negligible. In such situation, the origin of the hydration repulsive force is thought to be due to mainly indirect water-mediated forces, i.e., ordering of water molecules [4][5][6].…”

Section: Resultsmentioning

confidence: 99%

“…This force acts mainly when the lipid bilayers are in a fluid (L  ) phase. The other is a hydration repulsive force that is believed to be associated with a hydration at the membrane interface [4,5]. The hydration forces play an important role in the stability and interactions of biomembranes, or macromolecules [1,5].…”

Section: Introductionmentioning

confidence: 99%

On Hydration Repulsive Forces between Various Phospholipid Bilayers

Takahashi

2014

Proceedings of the 12th Asia Pacific Physics Conference (APPC12)

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Hydration repulsive forces between lipid bilayer play an important role in the interactions of biomembranes. In this study, the hydration repulsive forces at subzero temperature were estimated by combining X-ray diffraction data and chemical potential of ice formation. It was found that the strengths of the forces depend on the chemical structure of phospholipids, although the forces of all phospholipids studied here exhibit a similar exponential decay. The results are discussed from the viewpoints of the ordering of water molecules.

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“…The unmodified PB equation for a uniformly charged cylinder may be inadequate in describing the interaction for a variety of reasons. Correlation effects [1][2][3][4][5][6][7][8][9][10][11], image charge effects [1,5,8,10,12,13], solvent effects [12,[14][15][16][17][18][19], and structure of charged groups at the macro-ion surface [1,12,[19][20][21][22] may all play an important role. Though, the relative degree of each of these effects is likely to depend on the particular properties of the type of macro-ion under consideration, most importantly its shape, charge density and surface charge distribution of fixed charged groups.…”

Section: Introductionmentioning

confidence: 99%

“…Other important effects could arise from the discreteness of the solvent. This can yield a non-local and non-linear dielectric response [15][16][17] and cause hydration forces between macro-ions [12,14,39]. Also, one should also point out that image charge effects on solvent molecules could have an important role in determining cylinder-cylinder interactions, at small separations [40,41].…”

mentioning

confidence: 99%

Correlation effects, image charge effects and finite size in the macro-ion-electrolyte system: A field-theoretic approach

Lee

2009

Eur. Phys. J. E

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Abstract. We consider a model of a macro-ion surrounded by small ions of an electrolyte solution. The finite size of ionic charge distributions of ions, and image charge effects are considered. From such a model it is possible to construct a statistical field theory with a single fluctuating field and derive physical interpretations for both the mean field and two-point correlation function. For point-like charges, at the level of a Gaussian (or saddle point) approximation, we recover the standard Poisson-Boltzmann equation. However, to include ionic correlation effects, as well as image charge effects of individual ions, we must go beyond this. From the field theory considered, it is possible to construct self-consistent approximations. We consider the simplest of these, namely the Hartree approximation. The Hartree equations take the form of two coupled equations. One is a modified Poisson-Boltzmann equation; the other describes both image charge effects on the individual ions, as well as correlations. Such equations are difficult to solve numerically, so we develop an (a WKB-like) approximation for obtaining approximate solutions. This, we apply to a uniformly charged rod in univalent electrolyte solution, for point like ions, as well as for extended spherically symmetric distributions of ionic charge on electrolyte ions. The solutions show how correlation effects and image charge effects modify the Poisson-Boltzmann result. Finite-size charge distributions of the ions reduce both the effects of correlations and image charge effects. For point charges, we test the WKB approximation by calculating a leading-order correction from the exact Hartree result, showing that the WKB-like approximation works reasonably well in describing the full solution to the Hartree equations. From these solutions, we also calculate an effective charge compensation parameter in an analytical formula for the interaction of two charged cylinders.PACS. 61.20.Qg Structure of associated liquids: electrolytes, molten salts, etc. -61.20.Gy Theory and models of liquid structure -82.35.Rs Polyelectrolytes

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Repulsion of interfaces due to boundary water

Cited by 572 publications

References 9 publications

Force measurements with the atomic force microscope: Technique, interpretation and applications

Force measurements with the atomic force microscope: Technique, interpretation and applications

On Hydration Repulsive Forces between Various Phospholipid Bilayers

Correlation effects, image charge effects and finite size in the macro-ion-electrolyte system: A field-theoretic approach

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