Microstructural Analysis and Antibacterial Response of Zn2+/Mg2+ Dual Doped beta-Tricalcium Phosphate Bioceramics
INDONESIAN JOURNAL OF CHEMISTRY(2022)
摘要
This article evaluates the impact of the addition of zinc (Zn) and magnesium (Mg) on the structural, morphological, and antibacterial characteristics of beta-tricalcium phosphates (hereafter called Zn/Mg-beta TCP) prepared using the microwave (MW) assisted wet precipitation method in which the Ca deficient apatite [Ca9-(x+y)MgxZny(HPO4)(PO4)(5) (OH)] was calcined for 2 h at 1000 degrees C. The prepared samples were characterized using XRD, FTIR, and FESEM measurements. The XRD patterns of the samples showed a steady decrease in the lattice parameters with an increase in Mg2+ and Zn2+ content. The FESEM images of the samples disclosed the morphological changes due to the Mg2+/Zn2+ co-doping. The inclusion of Mg2+ and Zn2+ into the PTCP was shown to induce excellent bioactivities that were absent in the pristine PTCP. Enhancement, coupled with good antimicrobial properties against Escherichia coli coli), suggests that Mg2+/Zn2+ co-doping TCP can be developed further into antibacterial bone cement. As synthesized, it would be considered a potential biomaterial for orthopedic applications.
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关键词
beta-tricalcium phosphates, Co-doping, microstructure, phase purity, antibacterial
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