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  • Title: Aceclofenac-loaded chitosan-tamarind seed polysaccharide interpenetrating polymeric network microparticles.
    Author: Jana S, Saha A, Nayak AK, Sen KK, Basu SK.
    Journal: Colloids Surf B Biointerfaces; 2013 May 01; 105():303-9. PubMed ID: 23399430.
    Abstract:
    The present work deals with the preparation, characterization and evaluation of glutaraldehyde cross-linked chitosan-tamarind seed polysaccharide (TSP) interpenetrating polymeric network (IPN) microparticles for prolonged aceclofenac release. The drug entrapment efficiency of these microparticles was found 85.84±1.75 to 91.97±1.30% and their average particle sizes were ranged from 490.55±23.24 to 621.60±53.57 μm. These chitosan-TSP IPN microparticles were characterized by FTIR, DSC, and SEM analyses. The in vitro drug release from these aceclofenac-loaded chitosan-TSP IPN microparticles showed sustained release of aceclofenac over 8h and followed the Korsmeyer-Peppas model (R(2)=0.9809-0.9828) with anomalous (non-Fickian) diffusion drug release mechanism. The in vivo studies exhibited sustained anti-inflammatory activity in carrageenan-induced rats over prolonged period after oral administration of these newly developed aceclofenac-loaded IPN microparticles.
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