Reference : Study of the connectivity properties of Bioglass®-filled polylactide foam scaffolds b...
Scientific journals : Article
Engineering, computing & technology : Materials science & engineering
Physical, chemical, mathematical & earth Sciences : Chemistry
http://hdl.handle.net/2268/10021
Study of the connectivity properties of Bioglass®-filled polylactide foam scaffolds by image analysis and impedance spectroscopy
English
Blacher, Silvia mailto [University of Liège (ULg) > Department of Applied Chemistry > Laboratory of Chemical Engineering > >]
Maquet, Véronique [Univeristy of Liège (ULg) > Department of Chemistry > Center for Education and Research on Macromolecules (CERM) > >]
Jérôme, Robert mailto [University of Liège (ULg) > Department of Chemistry > Center for Education and Research on Macromolecules (CERM) > >]
Pirard, Jean-Paul mailto [University of Liège (ULg) > Department of Applied Chemistry > Laboratory of Chemical Engineering > >]
Boccaccini, Aldo R. [Imperial College, London, UK > Department of Materials > Centre for Tissue Engineering and Regenerative Medicine > >]
Sep-2005
Acta Biomaterialia
Elsevier
1
5
565-574
Yes (verified by ORBi)
International
1742-7061
Oxford
[en] biomaterial ; scaffold ; foam
[en] The porous structure of two series of poly(d,l-lactide)/Bioglass® composite foams prepared by thermal-induced phase separation was investigated by image analysis and impedance spectroscopy. Polymer solutions of either low or high molecular weight containing different concentrations (up to 50 wt.%) of Bioglass® particles of mean particle size d < 5 µm were studied. The morphology of both macro- and micropores was studied by scanning electron microscopy and image analysis of both neat and composite foams (containing 10-50 wt.% Bioglass®). The pore connectivity of both neat polymer and composite foams was characterized by impedance spectroscopy in relation with their transport properties. The influence of the foam composition (i.e., polymer molecular weight and concentration of Bioglass®) on pore microstructure was studied using these non-destructive methods. It was found that addition of Bioglass® particles has a pronounced effect on pore orientation, leading to increasing loss of order of pore structure, especially for low-molecular weight PDLLA foams.
Center for Education and Research on Macromolecules (CERM)
Politique Scientifique Fédérale (Belgique) = Belgian Federal Science Policy ; Fonds de la Recherche Scientifique (Communauté française de Belgique) - F.R.S.-FNRS ; Action de Recherche Concertée (ARC No. 00/05-265)
Researchers
http://hdl.handle.net/2268/10021
10.1016/j.actbio.2005.06.003
http://www.sciencedirect.com/science?_ob=MImg&_imagekey=B7GHW-4GPW3M7-3-P&_cdi=20189&_user=532038&_orig=browse&_coverDate=09%2F30%2F2005&_sk=999989994&view=c&wchp=dGLbVlb-zSkzk&md5=1ba87a37fbe15f5df86a95db5e1e902a&ie=/sdarticle.pdf
http://www.elsevier.com/wps/find/journaldescription.cws_home/702994/description#description
The authors acknowledge Acta Biomaterialia (Elsevier) for allowing them to archive this paper.

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