Preparation and characterization of temperature and pH-sensitive chitosan material and its controlled release on coenzyme A.
Colloids Surf B Biointerfaces
; 58(2): 151-6, 2007 Aug 01.
Article
en En
| MEDLINE
| ID: mdl-17419012
ABSTRACT
A novel copolymer P(CS-Ma-DMAEMA) was synthesized with chitosan (CS), maleic anhydride (Ma) and 2-(dimethylamino)ethyl methacrylate (DMAEMA) by grafting and copolymerization. The copolymer obtained was analyzed by FT-IR, (1)H NMR and UV, and the molecular weight and polydispersity were determined by gel permeation chromatography (GPC). The average size and distribution of copolymer micelles were determined by dynamic light scattering (DLS). Their aqueous solution properties and controlled coenzyme A delivery were also studied. It was found that the copolymer had temperature sensitivity and pH sensitivity. The factors affecting release behavior, such as concentration, pH and temperature were discussed in this paper. The higher concentration of the copolymer aqueous solution absorbed more coenzyme A than the lower one. The increasing temperature accelerated the drug release from the copolymer. The pH of the copolymer solution had significant impact on the release of coenzyme A. The results suggested that the novel copolymer could be used as drug delivery carrier.
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Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Temperatura
/
Coenzima A
/
Quitosano
Tipo de estudio:
Diagnostic_studies
Idioma:
En
Revista:
Colloids Surf B Biointerfaces
Asunto de la revista:
QUIMICA
Año:
2007
Tipo del documento:
Article