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Optimization, physicochemical characterization, and antimicrobial activity of a novel simvastatin nano-niosomal gel against E. coli and S. aureus

Akbarzadeh, I ; Sharif University of Technology | 2021

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  1. Type of Document: Article
  2. DOI: 10.1016/j.chemphyslip.2020.105019
  3. Publisher: Elsevier Ireland Ltd , 2021
  4. Abstract:
  5. Niosomes, as a kind of drug delivery system, is widely used for the topical delivery of lipophilic drugs. Optimization of niosomes plays an essential role in enhancing their therapeutic efficiencies. This study aims to prepare an optimized niosomal formulation of simvastatin (nSIM), a lipophilic member of statins, through the experiment (Response Surface methodology). Optimized niosomes were characterized in size, polydispersity index (PDI), entrapment efficiency (EE), stability, releasing pattern, and antimicrobial activity. The different molar ratio of surfactant and cholesterol were applied to prepare various formulation of simvastatin loaded niosome. Mean particle size and size distribution were analyzed by dynamic light scattering. Antibacterial activity was determined by MIC and MBC tests against Staphylococcus aureus and Escherichia coli. The release rate of simvastatin from noisome nanoparticles was studied by the Franz diffusion cell method. The release pattern was studied through zero order, first order, Higuchi, Korsmeyer-Peppas, and Hixson-Crowell kinetics models. Optimized niosomes were obtained by span 80, drug to cholesterol ratio of 0.4 with 7 min sonication time. Mean particle size, PDI, zeta potential, and entrapment efficiency (EE%) of optimized nSIM were obtained about 168 nm, 0.34, -32.40, and 96 %, respectively. The niosomes significantly decreased the drug's releasing rate and enhanced antibacterial activity against S. aureus and E. Coli. It was found that the release pattern of drug followed the Higuchi kinetic model which means drug release is by diffusion. Overall, our findings indicated that the prepared simvastatin loaded niosomes showed good stability and biological properties than free drug. Our study suggests that niosomal formulation could be considered as a promising strategy for the delivery of poor water-soluble drugs that enhance antibacterial activity. © 2020 Elsevier B.V
  6. Keywords:
  7. Cholesterol ; Nanogel ; Niosome ; Sorbitan oleate ; Antiinfective agent ; Liposome ; Nanoparticle ; Antibacterial activity ; Antimicrobial activity ; Cell survival rate ; Cell viability ; Controlled study ; Dispersity ; Drug release ; Drug solution ; Experimental design ; Fourier transform infrared spectroscopy ; Human ; Human cell ; In vitro study ; Minimum bactericidal concentration ; Minimum inhibitory concentration ; Multiobjective optimization ; Nonhuman ; Particle size ; Photon correlation spectroscopy ; Physical chemistry ; Priority journal ; Response surface method ; Shear rate ; Shear stress ; Ultrasound ; Zeta potential ; Chemistry ; Drug delivery system ; Drug effect ; Escherichia coli ; gel ; microbial sensitivity test ; Anti-Bacterial Agents ; Drug Delivery Systems ; Gels ; Liposomes ; Microbial Sensitivity Tests ; Nanoparticles ; Simvastatin ; Staphylococcus aureus
  8. Source: Chemistry and Physics of Lipids ; Volume 234 , 2021 ; 00093084 (ISSN)
  9. URL: https://pubmed.ncbi.nlm.nih.gov/33232724