Lysozyme adsorption on the colloidal chromium(III) oxide surface: Its impact on the system stability

Szewczuk-Karpisz, Katarzyna; Wiśniewska, Małgorzata; Myśliwiec, Dawid

doi:10.1016/j.apsusc.2015.04.121

Cited by 6 publications

(3 citation statements)

References 27 publications

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“…The point of zero charge of Cr 2 O 3 is at pH 7.5; therefore, we have taken the assumption that there is no net charge on the Cr 2 O 3 surface. 39 The MEA molecule was optimized in the neutral state in the same conditions (cutoff, and K points grid) as the Cr 2 O 3 slab. The gas-phase MEA most stable structure corresponds to a The Journal of Physical Chemistry C Article gauche mode.…”

Section: Computational Detailsmentioning

confidence: 99%

“…The point of zero charge of Cr 2 O 3 is at pH 7.5; therefore, we have taken the assumption that there is no net charge on the Cr 2 O 3 surface. 39 The MEA molecule was optimized in the neutral state in the same conditions (cutoff, and K points grid) as the Cr gauche mode. 13 Different coverages, from low coverage (0.25 ML) to a complete (1 ML) monolayer, were investigated.…”

Section: Computational Detailsmentioning

confidence: 99%

“…The pH range is 8–10 in the regeneration column. The point of zero charge of Cr 2 O 3 is at pH 7.5; therefore, we have taken the assumption that there is no net charge on the Cr 2 O 3 surface …”

Section: Computational Detailsmentioning

confidence: 99%

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Density Functional Theory Study of Monoethanolamine Adsorption on Hydroxylated Cr₂O₃Surfaces

et al. 2015

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The adsorption of monoethanolamine (MEA), a wellknown CO 2 capture amine, on the hydroxylated (0001)-Cr 2 O 3 surface was investigated by periodic density functional theory calculations and complementary ab initio molecular dynamics. Two different adsorption modes were investigated: adsorption of MEA above the hydroxylated surface and substitution of a surface water molecule by MEA. Several MEA coverages were studied from 0.25 to 1 monolayer. An atomistic thermodynamic approach was used to take into account the effects of temperature and solvation on the MEA adsorption process in aqueous solution. MEA can adsorb on the surface in a parallel orientation, and Hbonds are formed between amine and alcohol groups and different (H)OH groups at the surface. In the gas phase at 0 K, the formation of a monolayer (ML) of MEA above the surface is the most favorable adsorption mode. In aqueous solution at 298.15K, calculations have suggested that MEA adsorbs above the hydroxylated Cr 2 O 3 surface with a density of 2.37 MEA/nm 2 (0.5 ML). However, the substitution process was found to be endothermic at temperatures above 298.15 K.

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Section: Computational Detailsmentioning

confidence: 99%

“…The point of zero charge of Cr 2 O 3 is at pH 7.5; therefore, we have taken the assumption that there is no net charge on the Cr 2 O 3 surface. 39 The MEA molecule was optimized in the neutral state in the same conditions (cutoff, and K points grid) as the Cr gauche mode. 13 Different coverages, from low coverage (0.25 ML) to a complete (1 ML) monolayer, were investigated.…”

Section: Computational Detailsmentioning

confidence: 99%

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Density Functional Theory Study of Monoethanolamine Adsorption on Hydroxylated Cr₂O₃Surfaces

et al. 2015

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Physicochemical and Adsorption Properties of Nanoporous Activated Biocarbons from Thermochemical Treatment of Horsetail Herb

Wiśniewska,

Nowicki,

Urban

et al. 2024

ChemPlusChem

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The adsorption characteristics of novel activated biocarbons prepared from horsetail herb by physical activation (using carbon dioxide) and chemical one (using phosphoric(V) acid) in the process of simultaneous proteins immobilization in multicomponent solutions were examined. The carbon materials were characterized in terms of their porous structure, acidic‐basic properties, and surface morphology. The binding mechanisms of such proteins as bovine serum albumin (BSA) and lysozyme (LSZ), differing in internal stability, were determined alone and in their blends. This was done based on the comprehensive analysis of the results of adsorption/desorption, surface, electrokinetic and stability measurements. These experiments were carried out over a wide pH range of 3‐11. They included the following issues: (1) determination of the protein adsorbed/desorbed amounts on/from a surface of activated biocarbons; (2) study of the kinetics of these processes; (3) examination of the macromolecules impact on the surface charge density and zeta potential of the carbon materials; and (4) determination of the suspension stability and size of aggregates formed in the examined systems. The analysis of the obtained results indicated the differences in the binding mechanism of both proteins that is of key importance for their simultaneous immobilization on activated biocarbons surface in the soil environment.

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Water-Soluble Polymers as Substances Modifying the Stability of Colloidal Systems, the Nanostructure of Adsorption Layers

Wiśniewska

2023

Springer Proceedings in Physics

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Lysozyme adsorption on the colloidal chromium(III) oxide surface: Its impact on the system stability

Cited by 6 publications

References 27 publications

Density Functional Theory Study of Monoethanolamine Adsorption on Hydroxylated Cr₂O₃Surfaces

Density Functional Theory Study of Monoethanolamine Adsorption on Hydroxylated Cr₂O₃Surfaces

Physicochemical and Adsorption Properties of Nanoporous Activated Biocarbons from Thermochemical Treatment of Horsetail Herb

Water-Soluble Polymers as Substances Modifying the Stability of Colloidal Systems, the Nanostructure of Adsorption Layers

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Lysozyme adsorption on the colloidal chromium(III) oxide surface: Its impact on the system stability

Cited by 6 publications

References 27 publications

Density Functional Theory Study of Monoethanolamine Adsorption on Hydroxylated Cr2O3Surfaces

Density Functional Theory Study of Monoethanolamine Adsorption on Hydroxylated Cr2O3Surfaces

Physicochemical and Adsorption Properties of Nanoporous Activated Biocarbons from Thermochemical Treatment of Horsetail Herb

Water-Soluble Polymers as Substances Modifying the Stability of Colloidal Systems, the Nanostructure of Adsorption Layers

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Density Functional Theory Study of Monoethanolamine Adsorption on Hydroxylated Cr₂O₃Surfaces

Density Functional Theory Study of Monoethanolamine Adsorption on Hydroxylated Cr₂O₃Surfaces