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Shalygina K, Lytkina D, Sadykov R, Kurzina I. Composite Cryogels Based on Hydroxyapatite and Polyvinyl Alcohol and the Study of Physicochemical and Mechanical Properties. Materials (Basel) 2024; 17:403. [PMID: 38255572 PMCID: PMC10820414 DOI: 10.3390/ma17020403] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/07/2023] [Revised: 01/09/2024] [Accepted: 01/10/2024] [Indexed: 01/24/2024]
Abstract
Nowadays, due to the increasing number of diseases and injuries related to bone tissue, there is an acute problem of creating a material that could be incorporated into the bone tissue structure and contribute to accelerated bone regeneration. Such materials can be represented by a polymeric matrix that holds the material in the bone and an inorganic component that can be incorporated into the bone structure and promote accelerated bone regeneration. Therefore, in this work we investigated polyvinyl alcohol-based composite cryogels containing an in situ deposited inorganic filler, hydroxyapatite. The freezing temperature was varied during the synthesis process. The composition of the components was determined by infrared spectroscopy and the phase composition by X-ray phase analysis, from which it was found that the main phase of the composite is hydroxyapatite and that the particle size decreases with increasing freezing temperature. The elemental composition of the surface is dominated by carbon, oxygen, phosphorus and calcium; no impurities of other elements not typical for polyvinyl alcohol/ hydroxyapatite cryogels were found. Higher mechanical properties and melting points were observed at -15 °C. Cryogenic treatment parameters did not affect cell viability; however, cell viability was above 80% in all samples.
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Affiliation(s)
| | | | | | - Irina Kurzina
- Faculty of Chemistry, Tomsk State University, 634050 Tomsk, Russia; (K.S.); (D.L.); (R.S.)
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Karakchieva N, Artemenko A, Sokolov S, Amelichkin I, Knyazev A, Vorozhtsov A, Abzaev Y, Sachkov V, Kurzina I. Influence of Dy and Ho on the Phase Composition of the Ti-Al System Obtained by 'Hydride Technology'. Materials (Basel) 2022; 15:8584. [PMID: 36500079 PMCID: PMC9736984 DOI: 10.3390/ma15238584] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Revised: 11/23/2022] [Accepted: 11/29/2022] [Indexed: 06/17/2023]
Abstract
The manuscript describes the phase composition, microstructure, some physical and mechanical properties of the Ti-Al system with addition of 2 at. % Dy (TAD) and Ho (TAH) obtained by "hydride technology". Phase diagrams for Ti-Al-Dy and Ti-Al-Ho at a temperature of 1150 °C and basic properties for ternary phases Dy₆Ti₄Al₄₃ and Ho₆Ti₄Al₄₃ were calculated. A crystallographic database of stable and quasistable structures of the known elemental composition was created in the USPEX-SIESTA software by means of an evolutionary code. The calculations show that adding REM leads to a significant stabilizing effect in each Ti-Al-Me (Me = Dy, Ho) system without exception. It has been established that the lattice energies of AlTi3Ho and AlTi3Dy are, respectively, equal to: EAl4Ti12Dy3 = -32,877.825 eV and EAl4Ti12Dy3 = -31,227.561 eV. In the synthesized Ti49Al49Ho2 compound, the main phases include Al-Ti, Al3Ti3 and Al4Ti12Ho3 and the contributions to the theoretical intensity are equal to 44.83, 44.43 and 5.55%, respectively. Ti49Al49Dy2 is dominated by the Al-Ti, Al3Ti3 and Al4Ti12Dy phases, whose contributions are equal to 65.04, 16.88 and 11.2%, respectively. The microhardness of TAD and TAN specimens is 1.61 ± 0.08 and 1.47 ± 0.07 GPa, respectively.
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Affiliation(s)
- Natalia Karakchieva
- Chemical Technology Laboratory, National Research Tomsk State University, 36 Lenin Avenue, 634050 Tomsk, Russia
| | - Alina Artemenko
- Chemical Technology Laboratory, National Research Tomsk State University, 36 Lenin Avenue, 634050 Tomsk, Russia
| | - Sergei Sokolov
- Laboratory of Metallurgy Nanotechnologies, National Research Tomsk State University, 36 Lenin Avenue, 634050 Tomsk, Russia
| | - Ivan Amelichkin
- Chemical Technology Laboratory, National Research Tomsk State University, 36 Lenin Avenue, 634050 Tomsk, Russia
| | - Alexey Knyazev
- Faculty of Chemistry, National Research Tomsk State University, 36 Lenin Avenue, 634050 Tomsk, Russia
| | - Alexander Vorozhtsov
- Laboratory of Metallurgy Nanotechnologies, National Research Tomsk State University, 36 Lenin Avenue, 634050 Tomsk, Russia
| | - Yuri Abzaev
- Material Research Centre for Collective Use, Tomsk State University of Architecture and Building, Solyanaya 2, 634003 Tomsk, Russia
| | - Victor Sachkov
- Chemical Technology Laboratory, National Research Tomsk State University, 36 Lenin Avenue, 634050 Tomsk, Russia
| | - Irina Kurzina
- Smart Materials and Technologies Institute, National Research Tomsk State University, 36 Lenin Avenue, 634050 Tomsk, Russia
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Sadykov R, Lytkina D, Stepanova K, Kurzina I. Synthesis of Biocompatible Composite Material Based on Cryogels of Polyvinyl Alcohol and Calcium Phosphates. Polymers (Basel) 2022; 14:polym14163420. [PMID: 36015677 PMCID: PMC9414812 DOI: 10.3390/polym14163420] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Revised: 08/08/2022] [Accepted: 08/18/2022] [Indexed: 11/16/2022] Open
Abstract
At the moment, the field of biomedical materials science is actively developing, which aims at creating new functional materials. A developing direction in biomedical materials science is that towards the treatment of diseases associated with bone tissue disorders, using biodegradable composite materials based on polymer and calcium phosphate materials. We developed a material based on polyvinyl alcohol cryogel, mineralized with calcium phosphate. A material based on cryogel of polyvinyl alcohol mineralized with calcium phosphate was developed. The composites were obtained by the method of cyclic freezing-thawing, and the synthesis of calcium phosphates was carried out in situ with heating, stirring, and exposure to microwave radiation. The phase composition, as well as the composition of functional groups, was determined by IR spectroscopy and X-ray phase analysis. Monocytes isolated from human blood showed higher viability compared to the controls.
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Sandu MP, Syrtanov M, Orlov SA, Kurzina I. Investigation of Changes Regularities in the Valence State during the Formation of Supported Palladium-Bismuth Nanoparticles by XPS Method. NEW J CHEM 2022. [DOI: 10.1039/d2nj03651g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
Herein, we have revealed the regularities in the Pd-Bi NPs formation supported on alumina from acetic acid solution of organometallic precursors. Additionally, it was found that the support surface is...
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Lytkina D, Heinrich L, Churina E, Kurzina I. Biocompatible Composite Materials Based on Porous Hydroxyapatite Ceramics and Copolymer of Lactide and Glycolide. Materials (Basel) 2021; 14:2168. [PMID: 33922838 PMCID: PMC8123083 DOI: 10.3390/ma14092168] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/13/2021] [Revised: 04/21/2021] [Accepted: 04/22/2021] [Indexed: 11/16/2022]
Abstract
The intensive development of reconstructive surgery and traumatology provides a stable demand for new materials for implants. Of particular interest are materials based on hydroxyapatite, which are chemically close to the elemental composition and structure of bone and have similar bioactive properties. The aim of this work was to obtain porous composite materials based on hydroxyapatite and a copolymer of lactide and glycolide with properties suitable for use as a material for bone implants. The phase and elemental composition of composites was investigated by infrared spectroscopy, X-ray diffraction, and X-ray photoelectronic spectroscopy methods, and it was established how the production process affects the composition of materials. Regularities of the formation of porosity by the methods of low-temperature adsorption of nitrogen, immersion in a liquid (determination of the pore space volume), measurement of the diffusion coefficient through the material (Franz cell), and surface properties of composite materials by the Hammett indicator method, by the lying drop method were revealed. Regularities were established between the surface properties and the composition of materials and their biocompatibility determined using monocytes isolated from human peripheral blood.
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Affiliation(s)
- Daria Lytkina
- Department of Chemistry, National Research Tomsk State University, Lenin Ave. 36, 634050 Tomsk, Russia; (D.L.); (L.H.); (E.C.)
| | - Lothar Heinrich
- Department of Chemistry, National Research Tomsk State University, Lenin Ave. 36, 634050 Tomsk, Russia; (D.L.); (L.H.); (E.C.)
- Institute of Biochemistry, University of Muenster, Wilhelm-Klemm-Str. 2, 48149 Muenster, Germany
| | - Elena Churina
- Department of Chemistry, National Research Tomsk State University, Lenin Ave. 36, 634050 Tomsk, Russia; (D.L.); (L.H.); (E.C.)
- Department of Pathophysiology, Siberian State Medical University, Moskovsky tr. 2, 634055 Tomsk, Russia
| | - Irina Kurzina
- Department of Chemistry, National Research Tomsk State University, Lenin Ave. 36, 634050 Tomsk, Russia; (D.L.); (L.H.); (E.C.)
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Karakchieva N, Lepakova O, Abzaev Y, Sachkov V, Kurzina I. The Influence of Scandium on the Composition and Structure of the Ti-Al Alloy Obtained by "Hydride Technology". Nanomaterials (Basel) 2021; 11:nano11040918. [PMID: 33916871 PMCID: PMC8067241 DOI: 10.3390/nano11040918] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Revised: 02/24/2021] [Accepted: 02/26/2021] [Indexed: 12/03/2022]
Abstract
In this study the influence of scandium on the structural and phase state of the Ti-Al alloy obtained by the method of “Hydride Technology” (HT). The Rietveld method has allowed for determining the content of basic phases of the 49at.%Ti-49at.%Al-2at.%Sc system. By means of the methods of transmission electron microscopy (TEM) and X-ray spectral microanalysis, it has been established that scandium additives into the Ti-Al system result in the change of the quantitative content of phases in local regions of the structure. The Ti2Al5 phase has been found, and Ti2Al has been absent. In the morphology of substructures Ti-Al and Ti-Al-Sc there are lamellar structures or lamellae; the peculiarities of the distribution, fraction and size of which are influenced by scandium additives. The average width of Al-rich lamellae has been 0.85 µm, which is four times greater than that for the Ti-Al system (0.21 µm). For Ti-rich lamellae of the sample of the Ti-Al-Sc alloy, the average width of the lamellae has been 0.54 µm, and for Ti-Al it has been 0.34 µm. Based on the obtained data, a scheme of the distribution of phases in the composition of the Ti-Al-Sc alloy in the lamellar structures has been proposed. It has been established that in the Ti-Al-Sc system there is growth of the near-surface strength relative to Ti-Al. In this way, the microhardness of the Ti-Al-Sc alloy has amounted to 1.7 GPa, that is of the Ti-Al alloy which is 1.2 GPa.
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Affiliation(s)
- Natalia Karakchieva
- Chemical Technology Laboratory, National Research Tomsk State University, 36 Lenin Avenue, 634050 Tomsk, Russia; (V.S.); (I.K.)
- Correspondence: ; Tel.: +7-3822-412-319
| | - Olga Lepakova
- Tomsk Scientific Center of the Siberian Branch of the Russian Academy of Sciences, 10/4 Akademicheskii Prospekt, 634055 Tomsk, Russia;
| | - Yuri Abzaev
- Material Research Centre for Collective Use, Tomsk State University of Architecture and Building, 2 Solyanaya Square, 634003 Tomsk, Russia;
| | - Victor Sachkov
- Chemical Technology Laboratory, National Research Tomsk State University, 36 Lenin Avenue, 634050 Tomsk, Russia; (V.S.); (I.K.)
| | - Irina Kurzina
- Chemical Technology Laboratory, National Research Tomsk State University, 36 Lenin Avenue, 634050 Tomsk, Russia; (V.S.); (I.K.)
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Reshetnikov S, Kurzina I, Livanova A, Meshcheryakov E, Isupova L. Effect of Li, Na and K Modification of Alumina on its Physical and Chemical Properties and Water Adsorption Ability. Materials (Basel) 2019; 12:ma12244212. [PMID: 31847442 PMCID: PMC6947263 DOI: 10.3390/ma12244212] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/26/2019] [Revised: 12/09/2019] [Accepted: 12/11/2019] [Indexed: 11/16/2022]
Abstract
The effect of alkali metal (Li, Na, K) incorporation on the morphology and water vapor uptake properties of mesoporous Al2O3 has been studied. The modification of the raw material, pseudoboehmite, represented a mixture of low-temperature phases (γ + η + χ)-Al2O3, and has been done at low-temperature that does not change the phase ratio. A decrease in specific surface values and an average pores size increase were observed as a result of the introduction of metal cations by impregnation and subsequent thermal treatment. The influence of the content of the modifying metal on the adsorption ability of the obtained samples in relation to water vapours has been studied. It has been established that alkaline modification Al2O3 with the lithium cations did not result in adsorption ability improvement, whereas samples that were modified with sodium or potassium in the amount of 1.2 weight % and 2.6 weight %, respectively, possess a higher equilibrium capacity (by ~40%), as compared to that of the initial sample (Al2O3), and a sufficiently high adsorption rate.
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Affiliation(s)
- Sergey Reshetnikov
- Boreskov Institute of Catalysis, Siberian Branch, Russian Academy of Sciences, Novosibirsk 630090, Russia; (S.R.); (L.I.)
| | - Irina Kurzina
- Faculty of Chemistry, National Research Tomsk State University, Tomsk 634050, Russia; (A.L.); (E.M.)
- Correspondence: ; Tel.: +7-913-882-1028
| | - Alesia Livanova
- Faculty of Chemistry, National Research Tomsk State University, Tomsk 634050, Russia; (A.L.); (E.M.)
| | - Eugene Meshcheryakov
- Faculty of Chemistry, National Research Tomsk State University, Tomsk 634050, Russia; (A.L.); (E.M.)
| | - Lyubov Isupova
- Boreskov Institute of Catalysis, Siberian Branch, Russian Academy of Sciences, Novosibirsk 630090, Russia; (S.R.); (L.I.)
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Reshetnikov S, Budaev Z, Livanova A, Meshcheryakov E, Kurzina I. Effect of particle size on adsorption kinetics of water vapor on porous aluminium oxide material. ACTA ACUST UNITED AC 2019. [DOI: 10.1088/1742-6596/1145/1/012033] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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