Biomimetic calcium phosphate coating on medical grade stainless steel improves surface properties and serves as a drug carrier for orthodontic applications

Autor: Menghong Li, Mingjie Wang, Lingfei Wei, Arie Werner, Yuelian Liu
Přispěvatelé: Oral Cell Biology, Oral Implantology, Oral Regenerative Medicine (ORM), Dental Material Sciences
Jazyk: angličtina
Rok vydání: 2023
Předmět:
Zdroj: Dental Materials, 39(2), 152-161. Elsevier Science
Li, M, Wang, M, Wei, L, Werner, A & Liu, Y 2023, ' Biomimetic calcium phosphate coating on medical grade stainless steel improves surface properties and serves as a drug carrier for orthodontic applications ', Dental Materials, vol. 39, no. 2, pp. 152-161 . https://doi.org/10.1016/j.dental.2022.12.009
ISSN: 1879-0097
0109-5641
DOI: 10.1016/j.dental.2022.12.009
Popis: Objective: Recently, stainless steel (SSL) miniscrew implants have been used in orthodontic clinics as temporary anchorage devices. Although they have excellent physical properties, their biocompatibility is relatively poor. Previously, our group developed a two-phase biomimetic calcium phosphate (BioCaP) coating that can significantly improve the biocompatibility of medical devices. This study aimed to improve the biocompatibility of SSL by coating SSL surface with the BioCaP coating. Methods: Titanium (Ti) discs and SSL discs (diameter: 5 mm, thickness: 1 mm) were used in this study. To form an amorphous layer, the Ti discs were immersed in a biomimetic modified Tyrode solution (BMT) for 24 h. The SSL discs were immersed in the same solution for 0 h, 12 h, 24 h, 36 h and 48 h. To form a crystalline layer, the discs were then immersed in a supersaturated calcium phosphate solution (CPS) for 48 h. The surface properties of the BioCaP coatings were analysed. In addition, bovine serum albumin (BSA) was incorporated into the crystalline layer during biomimetic mineralisation as a model protein. Results: The morphology, chemical composition and drug loading capacity of the BioCaP coating on smooth SSL were confirmed. This coating improved roughness and wettability of SSL surface. In vitro, with the extension of BMT coating period, the cell seeding efficiency, cell spreading area and cell proliferation on the BioCaP coating were increased. Significance: These in vitro results show that the BioCaP coating can improve surface properties of smooth medical grade SSL and serve as a carrier system for bioactive agents.
Databáze: OpenAIRE
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