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Response Surface Methodology for Statistical Optimization of Chitosan/Alginate Nanoparticles As a Vehicle for Recombinant Human Bone Morphogenetic Protein-2 Delivery Publisher Pubmed



Zohri M1 ; Javar HA2 ; Gazori T3 ; Khoshayand MR4 ; Aghaeebakhtiari SH5, 6 ; Ghahremani MH1, 7
Authors
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Authors Affiliations
  1. 1. Nanotechnology Research Center, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
  2. 2. Departments of Pharmaceutics, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
  3. 3. Research and Development Department, Trita Nano Pharmaceutical Research Center, Tehran, Iran
  4. 4. Department of Drug and Food Control, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
  5. 5. Bioinformatics Research Group, Mashhad University of Medical Sciences, Mashhad, Iran
  6. 6. Department of Medical Biotechnology, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
  7. 7. Department of Pharmacology and Toxicology, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran

Source: International Journal of Nanomedicine Published:2020


Abstract

Purpose: In this study, chitosan/alginate nanoparticles are prospected as a carrier for controlled release of recombinant human bone morphogenetic protein-2 (rhBMP-2). Materials and Methods: The rhBMP-2-loaded chitosan/alginate nanoparticles (Cs/Alg/B NPs) were prepared using the ionic gelation (IG) method. The current research was con-ducted to optimize the effective factors for entrapping rhBMP-2 in Cs/Alg NPs using response surface methodology (RSM) and the Box–Behnken design (BBD). The variables were the Cs/Alg molecular weight (Mw) ratios (1–3), pH (4.8–5.5), stirring rates (900–1300 rpm) and the responses included size, ζ-potential, polydispersity index (PDI), loading efficacy (LE), cumulative release (CR), and morphological degradation time (MDE). Then, the morphological properties of optimum formulation were studied for post-characterization. In the next step, the MTT assay for the optimized run was done for 24 and 48 hours. Results: The results revealed that the optimum conditions for the mentioned variables were stirring rate=1100 rpm, pH=5.15, and Cs/Alg Mw ratio=1.75 based on numerical optimiza-tion. It was shown that the average particle size and loading efficacy at optimum conditions were 253 nm and 67%, respectively. Other responses were as follows: CR=66%, ζ-potential= +35mV, PDI=0.5, and MDT=7 days. Conclusion: The results have suggested that the statistical optimization of rhBMP-2 offers the possibility of preparing Cs/Alg/B NPs with a favorable size, controlled release character-istics, and high loading efficiency. It is expected that the acquired optimum conditions will be useful for efficient rhBMP-2 delivery. © 2020 Zohri et al.
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Mohammad Hossein Ghahremani (2)
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