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dc.contributor.author
Quiroga, Evelina
dc.contributor.author
Ramirez Pastor, Antonio Jose
dc.contributor.author
Ochoa, Nelio Ariel
dc.contributor.author
Centres, Paulo Marcelo
dc.date.available
2016-05-13T21:20:50Z
dc.date.issued
2013-01
dc.identifier.citation
Quiroga, Evelina; Ramirez Pastor, Antonio Jose; Ochoa, Nelio Ariel; Centres, Paulo Marcelo; Fractional Statistical Theory of Adsorption Applied to Protein Adsorption; Elsevier; Journal of Colloid and Interface Science; 390; 1; 1-2013; 183-188
dc.identifier.issn
0021-9797
dc.identifier.uri
http://hdl.handle.net/11336/5653
dc.description.abstract
Experimental adsorption isotherms of bovine serum albumin (BSA) adsorbed on sulfonated microspheres were described by means of two analytical models: the first is the well-known Langmuir–Freundlich model (LF), and the second, called fractional statistical theory of adsorption (FSTA), is a statistical thermodynamics model developed recently by Ramirez-Pastor et al. [Phys. Rev. Lett. 93 (2004) 186101]. The experimental data, obtained by Hu et al. [Biochem. Eng. J. 23 (2005) 259] for different concentrations of sulfonate group on the surface of the microspheres, were correlated by using a fitting algorithm based on least-squares statistics. The combination of LF and FSTA models, along with the choice of an adequate fitting procedure, allowed us to obtain several conclusions: (i) as previously reported in the literature, the maximum amount adsorbed increases as the amount of sulfonate group increases; (ii) the equilibrium constant does not appear as a sensitive parameter to the amount of sulfonate group on the surface of the microspheres; and (iii) the values of the fitting parameters obtained from FSTA may be indicative of a mismatch between the equilibrium separation of the intermolecular interaction and the distance between the adsorption sites. The exhaustive study presented here has shown that FSTA model is a good one considering the complexity of the physical situation, which is intended to be described and could be more useful in interpreting experimental data of adsorption of molecules with different sizes and shapes.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Elsevier
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.subject
Protein Adsorption
dc.subject
Adsorption Isotherms
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Equilibrium Thermodynamics And Statistical Mechanics
dc.subject
Bsa
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Física Atómica, Molecular y Química
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Ciencias Físicas
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CIENCIAS NATURALES Y EXACTAS
dc.title
Fractional Statistical Theory of Adsorption Applied to Protein Adsorption
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2016-05-13T15:17:12Z
dc.journal.volume
390
dc.journal.number
1
dc.journal.pagination
183-188
dc.journal.pais
Países Bajos
dc.journal.ciudad
Amsterdam
dc.description.fil
Fil: Quiroga, Evelina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico San Luis. Instituto de Física Aplicada; Argentina
dc.description.fil
Fil: Ramirez Pastor, Antonio Jose. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico San Luis. Instituto de Física Aplicada; Argentina
dc.description.fil
Fil: Ochoa, Nelio Ariel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico San Luis. Instituto de Física Aplicada; Argentina
dc.description.fil
Fil: Centres, Paulo Marcelo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico San Luis. Instituto de Física Aplicada; Argentina
dc.journal.title
Journal of Colloid and Interface Science
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S002197971201079X
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/j.jcis.2012.09.054
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.jcis.2012.09.054
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