In-vitro cell interaction and apatite forming ability in simulated body fluid of ICIE16 and 13-93 bioactive glass coatings deposited by an emerging suspension high velocity oxy fuel (SHVOF) thermal spray

Bano, S.; Romero, A. Rincon; Grant, D.M.; Nommeots-Nomm, A.; Scotchford, C.; Ahmed, I.; Hussain, T.

Abstract

ICIE16 and 13-93 bioactive glasses have been proposed as alternative chemically stable compositions in physiological fluid keeping bioactivity comparable to Bioglass®. ICIE16 and 13-93 bioactive glasses coatings were produced via an emerging suspension high-velocity oxy-fuel (SHVOF) thermal spraying technique. Suspensions of ICIE16 and 13-93 with 10 wt% solid loading in isopropanol (IPA) and water were used to produce coatings on AISI304 stainless steel using a flame power of 50 kW and 75 kW. For both glass formulations, the coatings deposited at a lower flame power were more porous, less hard, and less rough (~6% porous and 242 HV) than the coatings obtained at a higher flame power (~4% porosity and 300 HV). ICIE16 coatings showed more dissolution in SBF (simulated body fluid) than the 13-93 coatings. Moreover, the 13-93 glass coating sprayed at 75 kW showed the highest stability in SBF since only 2% of the coating was resorbed in SBF after 7 days of immersion and revealed apatite precipitation after 7 days. In-vitro cell tests, using MG63 cells, showed good cell attachment and proliferation on the surfaces of the coatings, revealing good cytocompatibility. The 13-93 coating sprayed at 75 kW revealed the highest cell proliferation after 7 days of incubation. This can be attributed to the higher surface roughness of the coating (Ra = 6.5 ± 0.6 μm).

Citation

Bano, S., Romero, A. R., Grant, D., Nommeots-Nomm, A., Scotchford, C., Ahmed, I., & Hussain, T. (2021). In-vitro cell interaction and apatite forming ability in simulated body fluid of ICIE16 and 13-93 bioactive glass coatings deposited by an emerging suspension high velocity oxy fuel (SHVOF) thermal spray. Surface and Coatings Technology, 407, Article 126764. https://doi.org/10.1016/j.surfcoat.2020.126764

• Journal Article Type: Article
• Acceptance Date: Dec 10, 2020
• Online Publication Date: Dec 18, 2020
• Publication Date: Feb 15, 2021
• Deposit Date: Jan 5, 2021
• Publicly Available Date: Jan 5, 2021
• Journal: Surface and Coatings Technology
• Print ISSN: 0257-8972
• Electronic ISSN: 1879-3347
• Publisher: Elsevier
• Peer Reviewed: Peer Reviewed
• Volume: 407
• Article Number: 126764
• DOI: https://doi.org/10.1016/j.surfcoat.2020.126764
• Keywords: Materials Chemistry; General Chemistry; Surfaces, Coatings and Films; Surfaces and Interfaces; Condensed Matter Physics
• Public URL: https://nottingham-repository.worktribe.com/output/5201521
• Publisher URL: https://www.sciencedirect.com/science/article/pii/S0257897220314341