4.7 Article

Magnetic chitosan nanoparticles loaded with Amphotericin B: Synthesis, properties and potentiation of antifungal activity against common human pathogenic fungal strains

期刊

出版社

ELSEVIER
DOI: 10.1016/j.ijbiomac.2022.09.244

关键词

Chitosan; Iron nanoparticles; Amphotericin B; Antifungal activity

资金

  1. Iran National Science Foundation (INSF) [99019762]
  2. Vice-Chancellor for Research of Shiraz University of Medical Sci-ences [20909]

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This study aimed to develop a novel and cost-effective IONPs@CS-AmB formulation to enhance AmB delivery performance and reduce drug dosage and adverse effects. The results showed that IONPs@CS-AmB exhibited significant antifungal activity and had higher biocompatibility compared to plain AmB and fungizone.
Amphotericin B has long been regarded as the gold standard for treating invasive fungal infections despite its toxic potential. The main objective of this research was to develop a novel IONPs@CS-AmB formulation in a cost-effective manner in order to enhance AmB delivery performance, with lowering the drug's dose and adverse effects. The chitosan-coated iron oxide nanoparticles (IONPs@CS) were synthesized afterward, AmB-loaded IONPs@CS (IONPs@CS-AmB) prepared and characterized by AFM, FT-IR, SEM, EDX, and XRD. Biological activity of the synthesized NPs determined and the cytotoxicity of IONPs@CS-AmB evaluated using the MTT and in vitro hemolysis tests. The IONPs@CS-AmB was synthesized using the coprecipitation method with core-shell structure in size range of 27.70 to similar to 70 nm. The FT-IR, XRD and EDX pattern confirmed the successful synthesis of IONPs @CS-AmB. The IONPs@CS-AmB exhibited significant antifungal activity and inhibited the metabolic activity of Candida albicans biofilms. The hemolysis and MTT assays showed that IONPs@CS-AmB is biocompatible with high cell viability when compared to plain AmB and fungizone. The IONPs@CS-AmB is more effective, less toxic and may be a suitable alternative to conventional drug delivery. IONPs@CS-AmB may be a viable candidate for use as a microbial-resistant coating on the surfaces of biomedical devices.

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