Please use this identifier to cite or link to this item: http://hdl.handle.net/1822/6737

TitleProduction and characterization of a new dextrin based hydrogel
Author(s)Carvalho, Joana
Gonçalves, Catarina
Gil, Ana M.
Gama, F. M.
KeywordsDextrin
Enzyme
Transesterification
Vinyl acrylate (VA)
Hydrogels
Issue dateJul-2007
PublisherElsevier Ltd.
JournalEuropean Polymer Journal
Citation"European Polymer Journal". ISSN 0014-3057. 43:7 (Jul. 2007) 3050-3059.
Abstract(s)Dextrin is a polymer composed of α-(1→4) D-glucose units produced by partial hydrolysis of starch. In this work, the transesterification of the soluble polysaccharide with vinyl acrylate (VA) was carried out in anhydrous dimethylsulfoxide (DMSO). The effect of the water activity and of the enzyme Proleather, on the reaction rates, was analysed. Different degrees of substitution (DS) ranging from ca. 10% to 70% were obtained by controlling the molar ratio of VA to dextrin. Gels were obtained by free radical polymerization of dextrin-VA, with different degrees of substitution and monomer concentration, in water. A comprehensive solid state-NMR analysis of the hydrogels was performed. These hydrogels are being developed as scaffold materials for bioactive molecule and cell delivery, tissue engineering and a variety of other biomedical applications.
TypeArticle
URIhttp://hdl.handle.net/1822/6737
DOI10.1016/j.eurpolymj.2007.02.046
ISSN0014-3057
Publisher versionhttp://www.sciencedirect.com/science/journal/00143057
Peer-Reviewedyes
AccessOpen access
Appears in Collections:CEB - Publicações em Revistas/Séries Internacionais / Publications in International Journals/Series

Files in This Item:
File Description SizeFormat 
Carvalho_J_EPJ[1].pdf586,95 kBAdobe PDFView/Open

Partilhe no FacebookPartilhe no TwitterPartilhe no DeliciousPartilhe no LinkedInPartilhe no DiggAdicionar ao Google BookmarksPartilhe no MySpacePartilhe no Orkut
Exporte no formato BibTex mendeley Exporte no formato Endnote Adicione ao seu ORCID