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Article
Composition and Structure of Mn/Sr-Cosubstituted Tricalcium Phosphate Prepared by Solid-State Synthesis
Unsubstituted tricalcium phosphate (TCP) and Mn/Sr-cosubstituted TCP have been prepared by solid-state synthesis at 1200°C. The synthesized compounds have been characterized by X-ray diffraction, IR spectrosco...
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Article
Magnesium–Calcium Phosphate Cements with Sodium Hyaluronate
The paper is devoted to the creation and investigation of the new cement materials formed the new beryite phase (MgHPO4·3H2O) during the setting processes. A cement liquid based on sodium phosphate solution with ...
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Article
Effect of Lithium Ions on the Properties of Calcium Sulfate Cement Materials
We have studied calcium sulfate (CS) based cement materials containing up to 5 mol % lithium cations. The presence of lithium ions has been shown to increase the solubility of the CS cements in Dulbecco’s solu...
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Article
Development of Methods for Determination of the Ag, Cu, Fe, and Zn Contents in Materials Based on Calcium Phosphate for Medical Purposes
Using inductively coupled plasma atomic emission spectrometry (ICP-AES) and atomic absorption spectroscopy (AAS), we developed methods that allow express determination of impurity elements (Ag, Cu, Fe, and Zn)...
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Article
Composite Materials Based on Polyvinylpyrrolidone and Calcium Phosphates for Medicine
Mineral-polymer composites based on PVP and hydroxyapatite (HA) are obtained by in situ deposition in solutions of polyvinylpyrrolidone (PVP). The composites are presented in the form of films of hydrogels. Du...
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Article
Synthesis and Properties of Manganese-Containing Calcium Phosphate Materials
We have studied manganese-containing calcium phosphates differing in manganese content and phase composition. At a manganese content of 0.15 wt %, the whitlockite content is ~90 wt % and the calcium pyrophosph...
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Article
Polymer Materials Containing Calсium Phosphates for Medicine: Part I. Methylcellulose and Starch Containing Calcium Phosphates (Review)
This review is devoted to methylcellulose and starch also to its composite materials with calcium phosphates for application in medicine. The techniques of manufacturing the composite materials from methylcell...
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Article
Polymer Materials Containing Calсium Phosphates for Medicine: Part II. Chitosan and Polyvinylpyrrolidone Containing Calcium Phosphates (Review)
The review deals with chitosan and polyvinylpyrrolidone and its composite materials with calcium phosphates for medical application. The approaches to obtain the composite materials from chitosan and polyvinyl...
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Article
Methylcellulose Films Partially Crosslinked by Iron Compounds
An original method is proposed for the production of methylcellulose-based film materials. The method is based on obtaining a homogeneous MC mixture with sodium alginate in an aqueous solution and subsequently...
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Article
Porous Ceramics Based on Substituted Tricalcium Phosphates for Bone Tissue Recovery
The results of studies concerning ceramics made of substituted (silver, zinc, copper, iron) tricalcium phosphate (TCP) powders are presented. It is shown that the pores in the obtained ceramics are interrelate...
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Article
Investigation of Brushite Cement Based on α-Tricalcium Phosphate and Its Composite with Polylactic Framework
Brushite cement based on alpha-tricalcium phosphate (α-TCP) and its composite with polylactide (PL) frame with a Kelvin structure were developed. The composite was obtained by filling the PL frame with liquid ...
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Article
Porous Carbonated Hydroxyapatite Ceramics Obtained by the Original Method of “Ceramic Biscuit” for Medicine
Carbonated hydroxyapatite (CHA) owing to its chemical and phase composition that is similar to that of the inorganic component of native bone tissue is a promising material for reconstructive surgery to heal b...
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Article
Reinforcement of Brushite Cement Based on α-TCP by Rigid Polylactide Framework
Brushite cement obtained from α-Ca3(PO4)2 and orthophosphoric acid in the presence of Mg(H2PO4)2 with compressive strength of 18 MPa was armored with a framework with the Kelvin architecture made of polylactide b...
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Article
Microstructure and properties of α-tricalcium phosphate-based bone cement
This paper examines the physicochemical properties and microstructure of brushite calcium phosphate cements possessing strength acceptable for application in surgery (15–20 MPa) and ensuring an optimal acidity...
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Article
Brushite cement based on β-TCP for orthopedics
The phase composition of brushite cement that is based on β-tricalcium phosphate (β-TCP) and monocalcium phosphate monohydrate (MCPM) is optimized. It is shown that an increase in the β-TCP/MCPM ratio from 1.0...
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Article
Effect of an amino acid on the formation of calcium phosphate particles on chitosan macromolecules
This paper presents a study aimed at producing new mineral–polymer composites for damaged bone tissue restoration after extended surgery and injuries. We have obtained materials based on chitosan and calcium p...
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Article
Thermochemical gypsum conversion forming calcium phosphates
A study was carried out on effect of the conditions of physicochemical conversion of a porous gypsum intermediate product to calcium phosphates. Depending on the initial conditions of sample preparation, the m...
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Article
Ripening of calcium carbonate powders in low surface tension liquids
We have studied the ripening of calcium carbonate powders in a mother liquor for up to 18 days in relation to the content of different liquids having lower surface tension in comparison with water: dimethyl ke...
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Article
Effect of thermal processing on characteristics of nanopowders of hydroxyapatite
The work is aimed at the study of the effect of the thermal history on the size, morphology, and structural characteristics of powders of hydroxyapatite designed for the preparation of nanocrystalline ceramics...
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Article
Low-temperature calcium carbonate ceramic
Investigations were carried out on development of a calcium carbonate ceramic with addition of potassium carbonate for regeneration of human osseous tissues. The initial materials included various calcium carb...