dc.contributorUniversidade Estadual Paulista (UNESP)
dc.creatorCury, Beatriz S. F.
dc.creatorde Castro, Ana Doris
dc.creatorKlein, Stanlei Ivair
dc.creatorEvangelista, Raul Cesar
dc.date2014-05-20T13:24:53Z
dc.date2016-10-25T16:45:32Z
dc.date2014-05-20T13:24:53Z
dc.date2016-10-25T16:45:32Z
dc.date2009-11-17
dc.date.accessioned2017-04-05T20:01:36Z
dc.date.available2017-04-05T20:01:36Z
dc.identifierCarbohydrate Polymers. Oxford: Elsevier B.V., v. 78, n. 4, p. 789-793, 2009.
dc.identifier0144-8617
dc.identifierhttp://hdl.handle.net/11449/7838
dc.identifierhttp://acervodigital.unesp.br/handle/11449/7838
dc.identifier10.1016/j.carbpol.2009.06.017
dc.identifierWOS:000270624200021
dc.identifierhttp://dx.doi.org/10.1016/j.carbpol.2009.06.017
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/856371
dc.descriptionThe influence of structural characteristics of high amylose cross-linked at different degrees on the release of drugs with important molecular differences, namely sodium diclophenac (SD) and nicotinamide (NI), was assessed in vitro from non-compacted systems. The release profiles were related with classical kinetic mathematical models for better understanding of the release mechanism. An increase in polymer cross-linking degree resulted in longer release time for both drugs, although SD generally was released slower than NI. SD release from samples cross-linked at 2% of basis was driven mainly by Fickian diffusion, while from samples cross-linked at 4% of basis follows anomalous mechanism. Inversely, anomalous mechanism was responsible for NI release from 2% samples and Fickian diffusion from 4% samples. Results suggest that the performance of cross-linked high amylose as excipient for controlled drug release not only depends on cross-linking degree but also is highly influenced by structural characteristics of the drug. (C) 2009 Elsevier Ltd. All rights reserved.
dc.languageeng
dc.publisherElsevier B.V.
dc.relationCarbohydrate Polymers
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectHigh amylose
dc.subjectCross-linking
dc.subjectNicotinamide
dc.subjectSodium diclophenac
dc.subjectRelease mechanism
dc.titleInfluence of phosphated cross-linked high amylose on in vitro release of different drugs
dc.typeOtro


Este ítem pertenece a la siguiente institución