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Article: Drug release kinetics and transport mechanisms from semi-interpenetrating networks of gelatin and poly(ethylene glycol) diacrylate

TitleDrug release kinetics and transport mechanisms from semi-interpenetrating networks of gelatin and poly(ethylene glycol) diacrylate
Authors
KeywordsDiffusion
Gelatin
Poly(ethylene glycol) diacrylate
Semi-interpenetrating network
Issue Date2009
Citation
Pharmaceutical Research, 2009, v. 26, n. 9, p. 2115-2124 How to Cite?
AbstractPurpose: To elucidate the key parameters affecting solute transport from semi-interpenetrating networks (sIPNs) comprised of poly(ethylene glycol) diacrylate (PEGdA) and gelatin that are partially crosslinked, water-swellable and biodegradable. Effects of material compositions, solute size, solubility, and loading density have been investigated. Materials and Methods: sIPNs of following gelatin/PEGdA weight-to-weight ratios were prepared: 10:15, 10:20, 10:30, 15:15, 20:15. Five model solutes of different physicochemical properties were selected, i.e. silver sulfadiazine (AgSD), bupivacaine hydrochloride (Bup), sulfadiazine sodium (NaSD), keratinocyte growth factor (KGF), and bovine serum albumin conjugated with fluorescein isothiocyanate (BSA-FITC). Release studies were performed and the results were analyzed using three hydrogel based common theories (free volume, hydrodynamic and obstruction). Results: The release kinetics of model solutes was influenced by each factor under investigation. Specifically, the initial release rates and intra-gel diffusivity decreased with increasing PEGdA content or increasing solute molecular weight. However, the initial release rate and intra-gel diffusivity increased with increasing gelatin content or increasing solute water solubility, which contradicted with the classical hydrogel based solute transport theories, i.e. increasing polymer volume leads to decreased solute diffusivity within the gel. Conclusion: This analysis provides structure-functional information of the sIPN as a potential therapeutic delivery matrix. © 2009 Springer Science+Business Media, LLC.
Persistent Identifierhttp://hdl.handle.net/10722/216202
ISSN
2015 Impact Factor: 3.26
2015 SCImago Journal Rankings: 1.189

 

DC FieldValueLanguage
dc.contributor.authorFu, Yao-
dc.contributor.authorKao, Weiyuan John-
dc.date.accessioned2015-08-25T10:22:24Z-
dc.date.available2015-08-25T10:22:24Z-
dc.date.issued2009-
dc.identifier.citationPharmaceutical Research, 2009, v. 26, n. 9, p. 2115-2124-
dc.identifier.issn0724-8741-
dc.identifier.urihttp://hdl.handle.net/10722/216202-
dc.description.abstractPurpose: To elucidate the key parameters affecting solute transport from semi-interpenetrating networks (sIPNs) comprised of poly(ethylene glycol) diacrylate (PEGdA) and gelatin that are partially crosslinked, water-swellable and biodegradable. Effects of material compositions, solute size, solubility, and loading density have been investigated. Materials and Methods: sIPNs of following gelatin/PEGdA weight-to-weight ratios were prepared: 10:15, 10:20, 10:30, 15:15, 20:15. Five model solutes of different physicochemical properties were selected, i.e. silver sulfadiazine (AgSD), bupivacaine hydrochloride (Bup), sulfadiazine sodium (NaSD), keratinocyte growth factor (KGF), and bovine serum albumin conjugated with fluorescein isothiocyanate (BSA-FITC). Release studies were performed and the results were analyzed using three hydrogel based common theories (free volume, hydrodynamic and obstruction). Results: The release kinetics of model solutes was influenced by each factor under investigation. Specifically, the initial release rates and intra-gel diffusivity decreased with increasing PEGdA content or increasing solute molecular weight. However, the initial release rate and intra-gel diffusivity increased with increasing gelatin content or increasing solute water solubility, which contradicted with the classical hydrogel based solute transport theories, i.e. increasing polymer volume leads to decreased solute diffusivity within the gel. Conclusion: This analysis provides structure-functional information of the sIPN as a potential therapeutic delivery matrix. © 2009 Springer Science+Business Media, LLC.-
dc.languageeng-
dc.relation.ispartofPharmaceutical Research-
dc.subjectDiffusion-
dc.subjectGelatin-
dc.subjectPoly(ethylene glycol) diacrylate-
dc.subjectSemi-interpenetrating network-
dc.titleDrug release kinetics and transport mechanisms from semi-interpenetrating networks of gelatin and poly(ethylene glycol) diacrylate-
dc.typeArticle-
dc.description.natureLink_to_subscribed_fulltext-
dc.identifier.doi10.1007/s11095-009-9923-1-
dc.identifier.pmid19554430-
dc.identifier.scopuseid_2-s2.0-68149181727-
dc.identifier.volume26-
dc.identifier.issue9-
dc.identifier.spage2115-
dc.identifier.epage2124-
dc.identifier.eissn1573-904X-

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