Novel antibacterial Cu/Mg-substituted 58S-bioglass: synthesis, characterization and investigation of in vitro bioactivity

Amirhossein Moghanian*, Alireza Ghorbanoghli, Masoud Kazem-Rostami, Arang Pazhouheshgar, Emad Salari, Morteza Saghafi Yazdi, Tannaz Alimardani, Hossein Jahani, Fariborz Sharifian Jazi, Mohammadreza Tahriri

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

17 Citations (Scopus)

Abstract

In this study, six sol-gel copper/magnesium substituted derivatives of 58S-BG, that is, a mol% series of 60SiO2-4P2O2-5CuO-(31-x) CaO/xMgO (where x = 0, 1, 3, 5, 8, and 10), were synthesized as new multifunctional bioactive glasses (BGs). Afterwards, the effect of MgO/CaO substitution on the in vitro formation of nanohydroxyapatite (HA), osteoblast-like cell responses, and bioactive glasses antibacterial performance were studied. X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), and scanning electron microscopy (SEM) results revealed that Cu-substituted 58S-BG consisting of 5 mol% MgO (BG-5/5) had capability of the formation of HA on its surface while, Cu-substituted 58S-BGs consisting 8 mol% and 10 mol% MgO (BG-5/8 and BG-5/10) displayed lower bioactivity. 

The In vitro investigations proved that the highest values of both differentiation and proliferation of MC3T3-E1 cells can be obtained from a 5 mol% MgO substituted BG. Furthermore, these novel Cu/Mg-substituted 58S-BGs displayed antibacterial effect against methicillin-resistant staphylococcus aureus bacteria. Taken together, the results suggest the equally substituted BG-5/5 (ie., the one consists of 5 mol% of both CuO and MgO) as a promising candidate for bone tissue engineering, among all newly designed BGs in this work, owing to its desirable cell proliferation, ALP activity, and antibacterial properties.

Original languageEnglish
Pages (from-to)685-698
Number of pages14
JournalInternational Journal of Applied Glass Science
Volume11
Issue number4
Early online date12 Nov 2019
DOIs
Publication statusPublished - Oct 2020

Keywords

  • bioactivity
  • biomedical applications
  • characterization
  • hydroxyapatite
  • MgO
  • sol-gel processes

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