Simple density functional approach to adsorption of biomolecules on solid surfaces |
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Authors: | Bucior K Fischer J Patrykiejew A Tscheliessnig R Sokolowski S |
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Affiliation: | Department for the Modelling of Physico-Chemical Processes, MCS University, 20031 Lublin, Poland. |
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Abstract: | A simple density functional approach for modeling the adsorption of biomolecules is considered. The model comprises a three-component mixture consisting of spherical and differently charged ions and chain molecules. Spherical ions can form associative bonds with selected segments of a chain. To enable the formation of bonds between chain segments and spherical ions, the statistical associating fluid theory is applied. The present theory is used to study the structure of adsorbed layers, the excess adsorption isotherms, and the capacitance of the double layer. |
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