Microwave synthesis and study of physicochemical properties of hydroxyapatite modified with silver and zinc ions

16th International Conference of Students and Young Scientists "Prospects of Fundamental Sciences Development"

自然科学（总论）

Gigilev, A.S.^1 ; Korotchenko, N.M.^1 ; Lariushina, A.V.^1 ; Kozik, V.V.^1

Department of Inorganic Chemistry, National Research Tomsk State University, Lenina, 36, Tomsk

634050, Russia^1

关键词: Biotesting;    Liquid phase depositions (LPD);    Microwave exposure;    Microwave synthesis;    NaCl solution;    Specific surface area and porosities;    Two-phase samples;    X-ray phase analysis;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/597/1/012004/pdf
DOI  :  10.1088/1757-899X/597/1/012004

学科分类：自然科学（综合）

来源: IOP

【 摘 要 】

The authors obtained two-phase samples of silver- and zinc-modified hydroxyapatite (AgHA, ZnHA) by liquid-phase deposition under microwave exposure; the main phase for all samples was hydroxyapatite Ca5(PO4)3(OH) with hexagonal syngony. The parameters of the elementary lattice of HA were studied via X-ray phase analysis and confirmed the formation of solid substitutional solutions while modifying HA with silver and zinc ions. Solubility has been estimated at 20 C for a 0.9% NaCl solution; specific surface area and porosity have been estimated for ZnHA powders obtained in presence of aminoacids. Surface morphology and dispersiveness have been studied for AgHA and ZnHA powders. Hammett method helped to establish the presence of acidic and basic centers on the surface of ZnHA and AgHA. Koch biotesting showed HA, AgHA, and ZnHA acting as inhibitors thus affecting E. coli tested samples. HA, AgHA, and ZnHA powders can be recommended for medical purposes.