[en] Image analysis has been used as a potential tool for the characterization of the texture of ultramacroporous foams prepared by freeze-drying. It has been shown that this technique actually provides valuable information on the structure of this kind of material. Image analysis of SEM micrographs of transverse sections at two different magnifications gave information on both the macroporosity (10 μm < width < 100 μm) and ultramacroporosity (width > 100 μm). Moreover, the foam anisotropy has been determined by image analysis of longitudinal sections.
Research center :
Center for Education and Research on Macromolecules (CERM)
Disciplines :
Chemistry Materials science & engineering
Author, co-author :
Blacher, Silvia ; Université de Liège - ULiège > Department of Applied Chemistry > Laboratory of Chemical Engineering
Maquet, Véronique; Université de Liège - ULiège > Department of Chemistry > Center for Education and Research on Macromolecules (CERM)
Jérôme, Robert ; Université de Liège - ULiège > Department of Chemistry > Center for Education and Research on Macromolecules (CERM)
Pirard, Jean-Paul ; Université de Liège - ULiège > Department of Applied Chemistry > Laboratory of Chemical Engineering
Language :
English
Title :
Image analysis characterization of highly oriented freeze-drying porous materials
Blacher S, Maquet V, Pirard R, Pirard J-P, Jérôme R (2001). Image analysis, impedance spectroscopy and mercury porosimetry characterisation of freeze-drying porous materials. Colloids and Surfaces A: Physicochemical and Engineering Aspects 187188:375-83.
Coster M, Chermant JL (1985). Précis d'analyse d'images. Paris: CNRS.
Maquet V, Blacher S, Pirard J-P, Jérôme R (2000). Characterization of porous polylactide foams by image analysis and impedance spectroscopy. Langmuir 16:10463-70.
Maquet V, Jérôme R (1997). Design of Macroporous Biodegradable Polymer Scaffolds for Cell Transplantation In: Porous Materials for Tissue Engineering, Vol. 250. Uetikon-Zuerich: Trans Tech Publications Ltd, 15-42.
Maquet V, Martin D, Malgrange B, Franzen R, Schoenen J, Moonen G, Jérôme R (2000). Peripheral nerve regeneration using bioresorbable macroporous polylactide scaffolds. J Biomed Mat Res 52:639-51.
Maquet V, Martin D, Scholtes F, Franzen R, Schoenen J, Moonen G, Jérôme R (2001). Poly(D, L-lactide) foams modified by poly(ethylene oxide)-block-poly(D, L-lactide) copolymers and a-FGF: in vitro and in vivo evaluation for spinal cord regeneration. Biomaterials 22:1137-46.
Serra J. (1982). Image analysis and mathematical morphology. New York: Academic press.