M. V. Papezhuk, C. N. Ivanin, V. A. Volynkin, P. P. Yakupov, L. V. Vasil’eva
{"title":"Synthesis, Properties, and Antibacterial Activity of Zinc-Substituted Hydroxyapatite","authors":"M. V. Papezhuk, C. N. Ivanin, V. A. Volynkin, P. P. Yakupov, L. V. Vasil’eva","doi":"10.1134/S0020168524701243","DOIUrl":null,"url":null,"abstract":"<p>Hydroxyapatite (HA) and zinc-substituted hydroxyapatite (ZnHA) have been prepared via precipitation from solution. The lattice parameters of ZnHA (<i>а</i>, <i>b</i> = 9.41766 Å, <i>с</i> = 6.88048 Å) are about 0.001 Å smaller than those of HA (<i>а</i>, <i>b</i> = 9.41866 Å, <i>с</i> = 6.88158 Å). The change in the lattice parameters of the ZnHA studied confirms partial Zn<sup>2+</sup> substitution for Ca<sup>2+</sup> in the crystal lattice of hydroxyapatite. IR spectra indicated the presence of functional groups (OH<sup>–</sup> and <span>\\({\\text{PO}}_{4}^{{3 - }}\\)</span>) in the composition of HA. According to scanning electron microscopy data, the particle size of the ZnHA powder prepared via precipitation followed by heat treatment at 900°C is 200–400 nm. Energy dispersive X-ray microanalysis was used to determine the Ca/P and (Ca + Zn)/P ratios in HA and ZnHA: 1.68 and 1.66, respectively. The solubility of ZnHA in physiological saline was found to be twice that of HA, suggesting good ZnHA resorption in the human body. Tests of disk-shaped samples in SBF solution demonstrated active formation of a new calcium phosphate layer as a result of chemisorption of Ca<sup>2+</sup>, Mg<sup>2+</sup>, <span>\\({\\text{HPO}}_{4}^{{2 - }}\\)</span>, <span>\\({\\text{PO}}_{4}^{{3 - }}\\)</span>, and OH<sup>–</sup> ions from solution. ZnHA exhibits activity for both gram positive (<i>Bacillus cereus</i> and <i>Staphylococcus aureus</i>) and gram negative (<i>Escherichia coli</i> and <i>Acinetobacter calcoaceticus</i>) microorganisms.</p>","PeriodicalId":585,"journal":{"name":"Inorganic Materials","volume":"60 8","pages":"1012 - 1022"},"PeriodicalIF":0.9000,"publicationDate":"2025-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Inorganic Materials","FirstCategoryId":"88","ListUrlMain":"https://link.springer.com/article/10.1134/S0020168524701243","RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0
Abstract
Hydroxyapatite (HA) and zinc-substituted hydroxyapatite (ZnHA) have been prepared via precipitation from solution. The lattice parameters of ZnHA (а, b = 9.41766 Å, с = 6.88048 Å) are about 0.001 Å smaller than those of HA (а, b = 9.41866 Å, с = 6.88158 Å). The change in the lattice parameters of the ZnHA studied confirms partial Zn2+ substitution for Ca2+ in the crystal lattice of hydroxyapatite. IR spectra indicated the presence of functional groups (OH– and \({\text{PO}}_{4}^{{3 - }}\)) in the composition of HA. According to scanning electron microscopy data, the particle size of the ZnHA powder prepared via precipitation followed by heat treatment at 900°C is 200–400 nm. Energy dispersive X-ray microanalysis was used to determine the Ca/P and (Ca + Zn)/P ratios in HA and ZnHA: 1.68 and 1.66, respectively. The solubility of ZnHA in physiological saline was found to be twice that of HA, suggesting good ZnHA resorption in the human body. Tests of disk-shaped samples in SBF solution demonstrated active formation of a new calcium phosphate layer as a result of chemisorption of Ca2+, Mg2+, \({\text{HPO}}_{4}^{{2 - }}\), \({\text{PO}}_{4}^{{3 - }}\), and OH– ions from solution. ZnHA exhibits activity for both gram positive (Bacillus cereus and Staphylococcus aureus) and gram negative (Escherichia coli and Acinetobacter calcoaceticus) microorganisms.
期刊介绍:
Inorganic Materials is a journal that publishes reviews and original articles devoted to chemistry, physics, and applications of various inorganic materials including high-purity substances and materials. The journal discusses phase equilibria, including P–T–X diagrams, and the fundamentals of inorganic materials science, which determines preparatory conditions for compounds of various compositions with specified deviations from stoichiometry. Inorganic Materials is a multidisciplinary journal covering all classes of inorganic materials. The journal welcomes manuscripts from all countries in the English or Russian language.