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ORIGINAL/BRIEF
Year : 2012  |  Volume : 4  |  Issue : 5  |  Page : 54-56

Development and in vivo evaluation of silver sulfadiazine loaded hydrogel consisting polyvinyl alcohol and chitosan for severe burns


Anand Pharmacy College, India

Correspondence Address:
S R Chakavala
Anand Pharmacy College
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/0975-7406.94131

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A new Hydrogel containing silver Sulfadiazine (SSD) was developed for enhanced burns wound healing. The hydrogel was prepared by cross-linking of PVA and Chitosan by freeze thawing method. Their gel properties, moisture retaining capacity, fluid uptake capacity, in vitro release study, in vivo burn healing effect were evaluated. Chitosan and PVA cross linking decreased gel fraction upto 70% determined the good gel properties. This cross linked hydrogel increased the Swelling ratio and Water vapour transmission rate (WVTR) which provides the sustained release of drug and moist environment for healing respectively. The hydrogel containing 7.5% of PVA, 0.75% of chitosan found to have increased gel strength, higher water vapour transmission rate and fluid uptake capacity suitable for faster healing of burns. This hydrogel also sustained the release of 1% SSD required for longer antimicrobial activity and found better in vivo burn healing capacity as compared to marketed preparation. Thus hydrogel containing 7.5% of PVA, 0.75% of chitosan and 1% SSD is a potential burns dressing with better gel properties and excellent burns healing capacity.


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