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USING FRACTAL ANALYSIS TO DESCRIBE COLLAGEN-CHITOSAN MATRICES

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Author(s): Viorica Stanescu | Mihaela Olteanu | Manuela Florea-Spiroiu | M. Rusu

Journal: Analele Universitatii Bucuresti : Chimie
ISSN 1220-871X

Volume: XVII;
Issue: II;
Start page: 47;
Date: 2008;
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Keywords: fractal dimension | collagen | chitosan | Scanning Electron Microscopy (SEM)

ABSTRACT
Hydrogels of collagen-chitosan biopolymers have been prepared with different ratio between components. Matrices have been obtained by liophilization from chitosan and collagen hydrogels. The aim of this study is the fractal characterization of biopolymer matrices. The concept of fractal dimension represents an index of the space-filling property of an irregular structure. The fractal dimensions values provide a quantitative measure of the degree of heterogenity on the membrane surface. Modification of collagen matrix with chitosan decrease the fractal dimension, D, as was calculated from Scanning Electron Microscopy (SEM)-image analysis which show a more uniform porous structure
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