Development and Characterization of Chitosan-Poly (Vinyl Pyrrolidone) Blend Microspheres for Controlled Release of Metformin Hydrochloride
- 27 April 2012
- journal article
- research article
- Published by Taylor & Francis Ltd in International Journal of Polymeric Materials and Polymeric Biomaterials
- Vol. 61 (6), 424-436
- https://doi.org/10.1080/00914037.2011.553858
Abstract
Chitosan-Poly (vinyl pyrrolidone), designated as CS-PVP, blend microspheres loaded with an anti-diabetic drug metformin hydrochloride (MH) were prepared using water-in-oil (W/O) emulsion method and used for controlled drug release studies. Microspheres were characterized by Fourier transform infrared spectroscopy (FTIR) to confirm the crosslinking reaction. Scanning electron microscopy (SEM) was also used to assess the surface morphology of particles prepared. The quantities of release of MH-loaded formulations were studied in terms of variation of blend composition and amount of crosslinking agent. DSC and XRD techniques indicated a uniform distribution of MH drug particles in microspheres, whereas SEM suggested the spherical structure of the microspheres with slight rough surface. The in vitro drug release indicated that the particle size and release kinetics depend upon blend composition, amount of cross-linking agent used, and amount of MH present in the microspheres. The prepared microspheres showed 50–82% encapsulation efficiency, which suggested that these IPN microspheres are suitable for controlled release of drugs up to 8 h.Keywords
This publication has 17 references indexed in Scilit:
- Poly(acrylamide-chitosan) Hydrogels: Interaction with SurfactantsInternational Journal of Polymeric Materials and Polymeric Biomaterials, 2010
- Genipin Crosslinked Chitosan-κ-carrageenan Polyelectrolyte Nanocapsules for the Controlled Delivery of IsoniazidInternational Journal of Polymeric Materials and Polymeric Biomaterials, 2010
- Preparation, Antibacterial and Physicochemical Behavior of Chitosan/Ofloxacin ComplexesInternational Journal of Polymeric Materials and Polymeric Biomaterials, 2010
- Poly(vinyl alcohol) Based pH Responsive Semi-IPN Hydrogels: A Comparative Swelling InvestigationInternational Journal of Polymeric Materials and Polymeric Biomaterials, 2007
- pH sensitive interpenetrating network microgels of sodium alginate‐acrylic acid for the controlled release of ibuprofenJournal of Applied Polymer Science, 2005
- Polyvinylpyrrolidone–drug conjugate: synthesis and release mechanismJournal of Controlled Release, 2004
- Reaction of a Peptide with Polyvinylpyrrolidone in the Solid StateJournal of Pharmaceutical Sciences, 2003
- Synthesis and properties of chitosan‐modified poly(vinyl acetate)Journal of Applied Polymer Science, 2002
- Studies on semi-interpenetrating polymer network beads of chitosan-poly(ethylene glycol) for the controlled release of drugsJournal of Applied Polymer Science, 2001
- A review of chitin and chitosan applicationsReactive and Functional Polymers, 2000