journal article·2016-11

Zinc-releasing calcium phosphate cements for bone substitute materials

V. Graziani, M. Fosca, A.A. Egorov, Yu.V. Zobkov, A.Yu. Fedotov, A.E. Baranchikov, M. Ortenzi, R. Caminiti, V.S. Komlev, J.V. Rau

Ceramics International· Volume 42· Issue 15
Publisher page

Abstract

The goal of the present study was to develop zinc-doped calcium phosphate bone cements (CPCs-Zn) for functionalized bone grafts applications. An aqueous co-precipitation process for synthesis of ?-tricalcium phosphate (?-TCP) powder samples with Zn addition ranging from 0. wt% up to 1.2. wt% was proposed as an alternative approach to produce CPCs-Zn, instead of mechanical mixing of powders. Real-time monitoring of structural transformations and kinetics of CPCs-Zn (Zn=0. wt%, 0.6. wt% and 1.2. wt%) was carried out by the Energy Dispersive X-Ray Diffraction technique. The microstructure development in CPCs-Zn was investigated by Scanning Electron Microscopy. Zn-ion release from CPC-Zn 0.6. wt% and CPC-Zn 1.2. wt% cements, measured by the Atomic Emission Spectroscopy, corresponded to the average values of 0.30±0.01 and 0.10±0.01. ?g/L, respectively. The results of antibacterial tests proved the inhibitory effect towards pathogenic . Escherichia coli only for the CPC-Zn 0.6. wt% cement formulation.
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Research context

OpenAlex topics: Bone Tissue Engineering Materials · Dental materials and restorations · Dental Implant Techniques and Outcomes

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