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Water solubility of drug-like molecules with the cubic-plus-association equation of state

dc.contributor.authorMota, Fátima L.
dc.contributor.authorQueimada, António
dc.contributor.authorPinho, Simão
dc.contributor.authorMacedo, Eugénia A.
dc.date.accessioned2011-06-01T15:53:46Z
dc.date.available2011-06-01T15:53:46Z
dc.date.issued2010
dc.description.abstractAlthough of extreme importance for evaluating the effective therapeutic action, aqueous solubility data involving drug-like molecules are scarce. Thermodynamic models can be used to estimate these solubilities, and different models, namely activity coefficient models, have been applied for that purpose. Still, these frequently cannot describe with accuracy broad temperature and pressure ranges, various solvent compositions or multifunctional molecules. Despite the success of the cubic-plus-association (CPA) equation of state (EoS) in modeling complex systems, it has never been used for modeling the phase equilibria of drug-like molecules, explicitly accounting for the number and nature of associating sites. In this work, aqueous solubilities of different complex solutes, like acetamide, acetanilide, acetylsalicylic acid, adipic acid, ascorbic acid, bisphenol A, camphor, dibenzofuran, hexachlorobenzene, hydroquinone, ibuprofen, nicotinic acid, paracetamol, piperazine, stearic acid, sorbitol, terephthalic acid and vanillin are estimated in a wide temperature range with the CPA EoS. Generally, the modeling results are within the experimental uncertainties using a single temperature independent binary interaction parameter, or a solvation parameter for some non-associating solutes. Globally, an average absolute deviation of 39% was obtained.por
dc.identifier.citationMota, Fátima; Queimada, António; Pinho, Simão; Macedo, Eugénia (2010). Water solubility of drug-like molecules with the cubic-plus-association equation of state. Fluid Phase Equilibria. vol. 298, p.75-82por
dc.identifier.doi10.1016/j.fluid.2010.07.004
dc.identifier.urihttp://hdl.handle.net/10198/4885
dc.language.isoengpor
dc.peerreviewedyespor
dc.publisherElsevierpor
dc.subjectCPApor
dc.subjectDrug-likpor
dc.subjectModelingpor
dc.subjectSolubilitypor
dc.subjectWaterpor
dc.titleWater solubility of drug-like molecules with the cubic-plus-association equation of statepor
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage82por
oaire.citation.issue298por
oaire.citation.startPage75por
oaire.citation.titleFluid Phase Equilibriapor
person.familyNamePinho
person.givenNameSimão
person.identifier810882
person.identifier.ciencia-id481D-73AD-8D0F
person.identifier.orcid0000-0002-9211-857X
person.identifier.ridD-4148-2013
person.identifier.scopus-author-id7003570175
rcaap.rightsrestrictedAccesspor
rcaap.typearticlepor
relation.isAuthorOfPublication8ef7789a-34f3-4915-a666-4efe26272a30
relation.isAuthorOfPublication.latestForDiscovery8ef7789a-34f3-4915-a666-4efe26272a30

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