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has been cited by the following article:

• TITLE: Synthesis and Biological Activity of Drug Delivery System Based on Chitosan Nanocapsules

  AUTHORS: Mohamed Gouda, Usama Elayaan, Magdy M. Youssef

  KEYWORDS: Chitosan, Naproxen, Nanocapsules, Drug Delivery Systems, Antimicrobial, Antioxidant, DNA Degradation

  JOURNAL NAME: Advances in Nanoparticles, Vol.3 No.4, November 11, 2014

  ABSTRACT: Chitosan nanocapsules containing naproxen as an active ingredient were synthesized by ionic gelation method in presence of polyanion tripolyphosphate as a crosslinker. The morphology and diameter of the prepared chitosan nanoparticles was characterized using scanning electron microscopy and transition electron microscopy. Different factors affecting on the size diameter of chitosan nanoparticles such as stirring time and temperature, pH values as well as chitosan concentration were studied. Different factors affecting on the immobilization of naproxen into chitosan nanoparticles such as time, temperature and pH values were optimized. Synthesized naproxen/chitosan nanocapsules were assessed against both Gram positive bacterial strain such as Bacillus subtilis and Staphylococcus aureus and Gram negative bacterial strain such as Pseudomonas aeruginosa and Escherichia coli. Also, the antifungal activity of the naproxen/chitosan nanocapsules against Saccharomyces cerevisiae was demonstrated. Super oxide dismutase like activity of naproxen/chitosan nanocapsules will be determined.