Article (Scientific journals)
Wetting of bioactive glass surfaces by poly(alpha-hydroxyacid) melts: interaction between Bioglass (R) and biodegradable polymers
Blaker, Jonny J.; Maquet, Véronique; Boccaccini, Aldo R. et al.
2005In e-Polymers, 23, p. 1-13
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Keywords :
biomaterial; scaffold
Abstract :
[en] The interfacial characteristics between bioactive glass (4555 Bioglass(R)) surfaces and poly(alpha-hydroxyacid) melts have been assessed by direct wetting measurements. In particular, the wettability of Bioglass(R) powder by poly(D,L-lactide) (PDLLA) and poly(D,L-lactide-co-glycolide) (PLGA) was assessed by imbibition measurements. Additionally, the equilibrium contact angles of PDLLA and PLGA melts on a sintered Bioglass(R) surface were measured. The surface energy of the bioactive glass and the polymers was determined from contact angles measured using various test liquids on PDLLA, PLGA and Bioglass(R) solid substrates. There are sufficient adhesive interactions between the polymers and Bioglass(R). A simple heat treatment of the bioactive glass in an inert gas atmosphere leads to an improved wetting behaviour, indicating increased adhesive interactions. Scanning electron micrographs of the polymer+Bioglass(R) composites formed by polymer penetration into the powder bed show the formation of a 'good quality' interface.
Research Center/Unit :
Center for Education and Research on Macromolecules (CERM)
Disciplines :
Materials science & engineering
Chemistry
Author, co-author :
Blaker, Jonny J.;  Imperial College, London, UK > Department of Materials > Centre for Tissue Engineering and Regenerative Medicine
Maquet, Véronique;  Université de Liège - ULiège > Department of Chemistry > Center for Education and Research on Macromolecules (CERM)
Boccaccini, Aldo R.;  Imperial College, London, UK > Department of Materials > Centre for Tissue Engineering and Regenerative Medicine
Jérôme, Robert ;  Université de Liège - ULiège > Department of Chemistry > Center for Education and Research on Macromolecules (CERM)
Bismarck, Alexander;  Imperial College, London, UK > Department of Chemical Engineering > Polymer and Composite Engineering (P.a.C.E.) Group,
Language :
English
Title :
Wetting of bioactive glass surfaces by poly(alpha-hydroxyacid) melts: interaction between Bioglass (R) and biodegradable polymers
Publication date :
01 April 2005
Journal title :
e-Polymers
eISSN :
1618-7229
Publisher :
European Polymer Federation, Strasbourg, France
Volume :
23
Pages :
1-13
Peer reviewed :
Peer Reviewed verified by ORBi
Funders :
EPSRC - Engineering and Physical Sciences Research Council
Available on ORBi :
since 12 February 2009

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