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Improved Green Biosynthesis of Chitosan Decorated Ag- and Co3o4-Nanoparticles: A Relationship Between Surface Morphology, Photocatalytic and Biomedical Applications Publisher Pubmed



Kiani M1 ; Rabiee N1 ; Bagherzadeh M1 ; Ghadiri AM1 ; Fatahi Y2, 3, 4 ; Dinarvand R2, 3 ; Webster TJ5
Authors
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Authors Affiliations
  1. 1. Department of Chemistry, Sharif University of Technology, Tehran, Iran
  2. 2. Department of Pharmaceutical Nanotechnology, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
  3. 3. Nanotechnology Research Centre, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
  4. 4. Universal Scientific Education and Research Network (USERN), Tehran, Iran
  5. 5. Department of Chemical Engineering, Northeastern University, Boston, MA, United States

Source: Nanomedicine: Nanotechnology# Biology# and Medicine Published:2021


Abstract

AgNPs@Chitosan and Co3O4-NPs@Chitosan were fabricated with Salvia hispanica. Results showed MZI values of 5 and 30 mm for Co3O4-NPs- and AgNPs@Chitosan against S. aureus, and 15 and 21 mm for Co3O4-NPs- and AgNPs@Chitosan against E. coli (24 h, 20 μg/mL), respectively. MTT assays showed up to 80% and 90%, 71% and 75%, and 91% and 94% mammalian cell viability for the green synthesized, chemically synthesized AgNPs and green synthesized AgNPs@Chitosan for HEK-293 and PC12 cells, respectively, and 70% and 71%, 59% and 62%, and 88% and 73% for the related Co3O4-NPs (24 h, 20 μg/mL). The photocatalytic activities showed dye degradation after 135 and 105 min for AgNPs@Chitosan and Co3O4-NPs@Chitosan, respectively. FESEM results showed differences in particle sizes (32 ± 3.0 nm for the AgNPs and 41 ± 3.0 nm for the Co3O4NPs) but AFM results showed lower roughness of the AgNPs@Chitosan (7.639 ± 0.85 nm) compared to Co3O4NPs@Chitosan (9.218 ± 0.93 nm), which resulted in potential biomedical applications. © 2020 Elsevier Inc.
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