Pharmaceutical nanotechnologyIn vivo wound healing performance of drug loaded electrospun composite nanofibers transdermal patch

Acute injuries or wound is required the fast delivery of drug to control infections without any side effect. In this direction in the present investigation, antibiotic ciprofloxacin loaded hydrophilic biodegradable poly vinyl alcohol (PVA) and sodium alginate (NaAlg) electrospun composite nanofiber based transdermal patch was developed for local delivery of antibiotic drug. The antibiotic drug ciprofloxacin was loaded in it by active loading. The drug entrapped in the composite nanofibers was confirmed by the scanning electron microscopy and swelling behavior. The in vivo studies were carried on male rabbits by using the drug loaded and unloaded composite nanofibers transdermal patch and marketed one. It is observed that, in vitro activity provides a sustained and controlled release pattern of the drug from transdermal patch. The mechanism of drug release was also studied using different models. The nanofiber transdermal patch follows the Higuchi and Korsmeyer-Peppas model for drug release. The in vivo studies demonstrate that, wound healing takes place in less time as compared drug unloaded patch. Hydroxyproline produced in wound bed with time shows that it content is maximum in case drug loaded PAV-NaAlg patch. This demonstrates that wound healing rate is higher in case drug loaded PVA-NaAlg transdermal patch.

The drug loaded composite nanofiber patch have high wound healing rate and produced maximum content of hydroxyproline in wound bed with time as compared to unloaded composite patch.246