The principle of Braun—Le Châtelier at surfaces

Joos, P.; Serrien, G

doi:10.1016/0021-9797(91)90123-p

Cited by 84 publications

(54 citation statements)

References 3 publications

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“…Peculiarities of the adsorption behavior of proteins, as well as various theoretical models describing their adsorption, were reviewed in [2]. Here, we only mention some important papers devoted to statistical [3][4][5][6][7][8][9][10][11], scaling [12][13][14][15], and thermodynamic [16][17][18][19][20][21][22][23] models.…”

Section: Introductionmentioning

confidence: 99%

Equilibrium and Dynamic Characteristics of Protein Adsorption Layers at Gas-Liquid Interfaces: Theoretical and Experimental Data

Fainerman

Miller

2005

Colloid J

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Within the framework of a nonideal two-dimensional solution model, equations are derived for the state of a surface layer, adsorption isotherms, and the distribution function of adsorbed protein molecules with respect to their states characterized by different molar surface areas. The derived equations satisfactorily describe the known experimental dependences obtained for equilibrium adsorption layers of some proteins (serum albumin, β -casein, and β -lactoglobulin): the dependences of the surface pressure on concentration and adsorption, the surface layer thickness on adsorption, and the limiting high-frequency elastic modulus of an adsorption layer on the surface pressure. All dependences for a given protein are described by the same set of parameters of the theoretical model. It is shown that the kinetics of protein adsorption studied by dynamic tensiometry, ellipsometry, and the radiotracer technique is consistent with the diffusion model comprising the Ward-Tordai equation and the set of equations describing the equilibrium. The kinetics of protein desorption from the adsorption layer at a liquid-fluid interface is analyzed. The kinetics of β -lactoglobulin desorption is shown to be described by the barrier mechanism.

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Section: Introductionmentioning

confidence: 99%

Equilibrium and Dynamic Characteristics of Protein Adsorption Layers at Gas-Liquid Interfaces: Theoretical and Experimental Data

Fainerman

Miller

2005

Colloid J

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“…When a surfactant is added to protein solution, it begins to replace protein from the adsorptive layers, lowering the surface tension of the system (Joos & Serrien, 1999). Ionic and nonionic surfactants have some differences in their action, but their main influence on the solutions is the same (Mackie et al, 2000;Gunninh et al, 2004).…”

Section: Resultsmentioning

confidence: 99%

Uncoated quartz resonator as a universal biosensor

Yakhno¹,

Sanin²,

Pelyushenko³

et al. 2007

Biosensors and Bioelectronics

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“…The boundary condition of the transport problem given by Eq. [3] at the interface (z = 0) should account for both the diffusion of surfactant toward the surface and the transitions between the states of adsorbed molecules. Equations which describe the mass balance for states 1 and 2 are (11) [5] where = 1 + 2 is the total adsorption, β = (ω 1 /ω 2 ) α and α are constants, ω 1 and ω 2 (ω 1 > ω 2 ) are the partial molar areas, k is the rate constant of transition between the two states 1 und 2, R is the gas constant, T is the absolute temperature, = γ 0 − γ is the surface pressure, and γ is the surface tension of the solution.…”

Section: Theorymentioning

confidence: 99%

“…For example, the asymmetry of a surfactant molecule can be the reason that it changes its orientation and hence may occupy different areas in the adsorption layers at liquid-gas or liquid-liquid interfaces (2)(3)(4)(5)(6)(7)(8)(9). It was shown that the adsorbed molecules characterized by a certain partial molar area depend on the surface pressure (3). When the surface pressure increases, the concentration of the state with the lowest molar area in the surface layer becomes higher.…”

Section: Introductionmentioning

confidence: 99%