Article (Scientific journals)
Mg2+, Sr2+, Ag+, and Cu2+ co-doped β-tricalcium phosphate: Improved thermal stability and mechanical and biological properties
Somers, Nicolas; Jean, Florian; Lasgorceix, Marie et al.
2023In Journal of the American Ceramic Society, 106 (7), p. 4061 - 4075
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Keywords :
bone repair applications; cell proliferation; copper; coprecipitation synthesis; cytocompatibility; doping; hardness; magnesium; silver; sintering; strontium; β-TCP; Ag +; Bone repair; Bone repair application; Co-doped; Coprecipitation synthesis; Cytocompatibility; Mechanical; Repair applications; Tri-calcium phosphates; Ceramics and Composites; Materials Chemistry
Abstract :
[en] β-tricalcium phosphate (β-TCP, β-Ca3(PO4)2) is an attractive biomaterial for bone repair applications. However, its sintering and mechanical properties are limited by a problematic phase transition to α-TCP. Cationic doping of β-TCP is able to postpone the formation of α-TCP allowing higher sintering temperatures and better mechanical properties. The co-doping of β-TCP with Mg2+ and Sr2+ has already been studied in detail, but the addition of antibacterial cations (Ag+ and Cu2+) on the Mg–Sr β-TCP co-doped composition remains unexplored. Thus, two co-doped β-TCP compositions were realized by aqueous precipitation technique without any secondary phase and compared with undoped β-TCP: Mg–Sr (2.0–2.0 mol%) and Mg–Sr–Ag–Cu (2.0–2.0–0.1–0.1 mol%). Differential thermal analysis and dilatometry analyses showed a slight decrease of the β-TCP → α-TCP phase transition temperature for the Mg–Sr–Ag–Cu (2.0–2.0–0.1–0.1% mol) composition as compared to the Mg–Sr (2.0–2.0 mol%). However, both exhibited much higher transition temperatures than undoped β-TCP. The addition of Ag+ and Cu2+ slightly reduces the grain size after sintering compared to the Mg–Sr (2.0–2.0 mol%) and the undoped compositions. The co-doped compositions also exhibited improved mechanical properties, specifically a higher Vickers hardness and elastic modulus. Finally, cell proliferation assays showed that the presence of dopants, even Ag+ and Cu2+, does not affect the survival and proliferation of cells. Thus, the use of Mg2+, Sr2+, Ag+, and Cu2+ co-doped β-TCP could be very promising for biomedical applications due to the improvements of these dopants on the thermal stability and mechanical and biological properties.
Disciplines :
Chemistry
Author, co-author :
Somers, Nicolas  ;  Université de Liège - ULiège > Complex and Entangled Systems from Atoms to Materials (CESAM) ; Univ. Polytechnique Hauts-de-France—CERAMATHS-DMP, Valenciennes, France
Jean, Florian;  Univ. Polytechnique Hauts-de-France—CERAMATHS-DMP, Valenciennes, France
Lasgorceix, Marie;  Univ. Polytechnique Hauts-de-France—CERAMATHS-DMP, Valenciennes, France
Urruth, Giovanni;  CIRIMAT, Université de Toulouse, CNRS, Toulouse, France
Balvay, Sandra;  Univ. Lyon, UCBL, INSA Lyon, CNRS, MATEIS, UMR5510, Lyon, France
Gaillard, Claire;  Univ. Lyon, UCBL, INSA Lyon, CNRS, MATEIS, UMR5510, Lyon, France
Gremillard, Laurent ;  Univ. Lyon, UCBL, INSA Lyon, CNRS, MATEIS, UMR5510, Lyon, France
Leriche, Anne;  Univ. Polytechnique Hauts-de-France—CERAMATHS-DMP, Valenciennes, France
Language :
English
Title :
Mg2+, Sr2+, Ag+, and Cu2+ co-doped β-tricalcium phosphate: Improved thermal stability and mechanical and biological properties
Publication date :
July 2023
Journal title :
Journal of the American Ceramic Society
ISSN :
0002-7820
Publisher :
John Wiley and Sons Inc
Volume :
106
Issue :
7
Pages :
4061 - 4075
Peer reviewed :
Peer Reviewed verified by ORBi
Funding text :
The authors are grateful to the “DOC 3D Printing” project for financial support. This project has received funding from the European Union's Horizon 2020 research and innovation program under the Marie Skłodowska-Curie grant agreement no. 764935. The authors would like to congratulate the Young Ceramists Network committee for their work to improve the networking among young ceramist researchers. The authors are also grateful to the ECERS administrative officers for their impressive work on organizing online conferences.66The authors are grateful to the “DOC 3D Printing” project for financial support. This project has received funding from the European Union's Horizon 2020 research and innovation program under the Marie Skłodowska‐Curie grant agreement no. 764935.
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