Poly[monomethylnona(ethylene glycol) 1-methylene-3-(4-methylphenyl)-1. H-indene-2-carboxylate] (poly-1b) a new polymer based on a PEG-functionalized benzofulvene macromonomer have been investigated as hydrogel-based material for complexation and release of immunoglobulin (IgG) at physiological mimicking conditions.The polymer ability to complex human IgG has been studied by preparing copolymer/protein complexes obtained by spontaneous protein interactions onto polymer hydrogel aggregates, and the protein release rate has been evaluated at physiological conditions. SEM analysis was used to visualize the copolymer/IgG aggregates and its microstructured deposition. Moreover, rheological studies performed at 37°C allowed determining hydrogel mechanical properties. On the basis of these information and NMR transverse relaxation measurements, the estimation of hydrogel mesh size distribution was possible.Finally, biological studies performed with poly-1b aqueous dispersions showed no cytotoxic effect on MCF-7 cell line, suggesting potential biocompatibility features for this polymer and making this new polymer a good potential candidate for the production of drug delivery systems. © 2010 Elsevier B.V.
Licciardi, M., Grassi, M., Di Stefano, M., Feruglio, L., Giuliani, G., Valenti, S., et al. (2010). PEG-Benzofulvene Copolymer Hydrogels for Antibody Delivery. INTERNATIONAL JOURNAL OF PHARMACEUTICS, 390(2), 183-190 [10.1016/j.ijpharm.2010.02.002].
PEG-Benzofulvene Copolymer Hydrogels for Antibody Delivery
Giuliani, Germano;Cappelli, Andrea;
2010-01-01
Abstract
Poly[monomethylnona(ethylene glycol) 1-methylene-3-(4-methylphenyl)-1. H-indene-2-carboxylate] (poly-1b) a new polymer based on a PEG-functionalized benzofulvene macromonomer have been investigated as hydrogel-based material for complexation and release of immunoglobulin (IgG) at physiological mimicking conditions.The polymer ability to complex human IgG has been studied by preparing copolymer/protein complexes obtained by spontaneous protein interactions onto polymer hydrogel aggregates, and the protein release rate has been evaluated at physiological conditions. SEM analysis was used to visualize the copolymer/IgG aggregates and its microstructured deposition. Moreover, rheological studies performed at 37°C allowed determining hydrogel mechanical properties. On the basis of these information and NMR transverse relaxation measurements, the estimation of hydrogel mesh size distribution was possible.Finally, biological studies performed with poly-1b aqueous dispersions showed no cytotoxic effect on MCF-7 cell line, suggesting potential biocompatibility features for this polymer and making this new polymer a good potential candidate for the production of drug delivery systems. © 2010 Elsevier B.V.File | Dimensione | Formato | |
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https://hdl.handle.net/11365/8640
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