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    Microstructural Analysis and Antibacterial Response of Zn2+/Mg2+ Dual Doped ?-Tricalcium Phosphate Bioceramics
    (Gadjah Mada Univ, Dept Chemistry, 2022) Alshemary, Ammar Zeidan; Qasim, Huda Basim; Saleh, Ali Taha
    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.