Release of ciprofloxacin from poloxamer-graft-hyaluronic acid hydrogels in vitro.
Int J Pharm
; 260(1): 83-91, 2003 Jul 09.
Article
en En
| MEDLINE
| ID: mdl-12818813
Recently, in situ gel formation has extensively been studied to enhance ocular bioavailability and duration of the drug activity. In this study, we report grafting of poloxamer onto the hyaluronic acid for application of tissue engineering oriented ophthalmic drug delivery system. Graft copolymers were prepared by coupling mono amine-terminated poloxamer (MATP) with hyaluronic acid (HA) backbone using 1-ethyl-3-(3-dimethylaminopropyl)-carbodiimide (EDC) and N-hydroxylsuccinimide (NHS) as coupling agents. The coupling of MATP with HA was clarified by 1H NMR and FT-IR spectroscopy. The gelation temperature of graft copolymers was dependent on the content of HA and the concentration of poloxamer. From drug release studies in vitro, ciprofloxacin was sustainedly released from the poloxamer-g-hyaluronic acid hydrogel due to the in situ gel formation of the copolymer and viscous properties of HA.
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Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Ciprofloxacina
/
Poloxámero
/
Ácido Hialurónico
Idioma:
En
Revista:
Int J Pharm
Año:
2003
Tipo del documento:
Article
País de afiliación:
Corea del Sur
Pais de publicación:
Países Bajos