Synthesis Characterization and In Vitro Release Study of Ciprofloxacin-Loaded Chitosan Nanoparticle

Ciprofloxacin, a poorly soluble drug-loaded chitosan nanoparticle, was prepared for the treatment of microbial infections. Nanoformulation of ciprofloxacin was prepared using 85% deacetylated chitosan as a biodegradable polymer and tripolyphosphate (TPP) as a cross-linking agent by ionotropic gelation. It was further evaluated and characterized on the basis of morphology, drug loading efficiency, X-ray diffraction, zeta potential value, Fourier transform infrared study, antimicrobial study, and also in vitro release behavior of ciprofloxacin. The FTIR spectral studies indicated that there was no interaction found between the drug and chitosan. The sample CS1 formulation was found stable with good drug entrapment efficiency, fair zeta potential value, and its size ranged between 100 and 200 nm. The in vitro study showed sustained release behavior with steady rise in cumulative drug release (> 99%) for up to about 8 h and thereafter, no significant release observed. The characterized formulations were also used to study antimicrobial activity. © 2017, Springer Science+Business Media, LLC, part of Springer Nature.