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Please use this identifier to cite or link to this item: http://eprint.iitd.ac.in/handle/2074/1326

Title: Studies on biodegradation and release of gentamicin sulphate from interpenetrating network hydrogels based on poly(acrylic acid) and gelatin: in vitro and in vivo
Authors: Changez, Mohammad
Koul, Veena
Krishna, B
Dinda, Amit Kumar
Choudhary, Veena
Keywords: Hydrogel
Interpenetrating polymer network
Gentamicin sulphate
Poly(acrylic acid)
Issue Date: 2004
Citation: Biomaterials, 25(1), 139-146
Abstract: Interpenetrating network hydrogels (IPNs) based on poly(acrylic acid) and gelatin (Ge) were evaluated for in vitro and in vivo biodegradation and in vivo release of gentamicin sulphate. In vitro and in vivo degradation studies demonstrated that with the increase of acrylic acid content in the polymer, the rate of degradation decreases, and a reverse phenomenon was observed with increasing Ge content in the hydrogel. The rate of in vivo degradation was much lower than in vitro degradation. Incorporation of gentamicin sulphate in hydrogel further reduces their degradation. In vitro and in vivo drug release profile showed a burst effect, followed by controlled release. Drug concentration was measured in the local skin tissue, blood serum, kidney, liver and spleen. The local skin tissue concentration of 50% and 100% gentamicin sulphate, loaded full IPNs (i.e., Ax-1 and Ax-2), was found to be higher (20±2 μg/g) than the minimum bactericidal concentration for Staphylococcus aureus (1.2 μg/g) and Pseudomonas aeruginosa (10 μg/g), respectively, for a study time of 60 days.
URI: http://eprint.iitd.ac.in/dspace/handle/2074/1326
Appears in Collections:Biomedical Engineering [CBME]

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