Article
Materials Science, Ceramics
Svetlana Makarova, Irina A. Borodulina, Igor Yu Prosanov, Tatiana A. Borisenko, Olga A. Logutenko, Natalia Bulina, Arcady Ishchenko
Summary: Silver-substituted hydroxyapatites were prepared using a planetary ball mill. The samples were characterized using X-ray diffraction, FTIR spectroscopy, and simultaneous thermal analysis. It was found that single-phase substituted hydroxyapatites could be obtained with silver concentrations up to 1.5. Increasing the silver concentration resulted in an increase in crystal volume and unit-cell parameters. At a silver concentration of 2.0, an impurity phase of silver phosphate was detected. The thermal stability of the synthesized samples depended on the degree of substitution of calcium cations by silver cations.
CERAMICS INTERNATIONAL
(2023)
Article
Chemistry, Inorganic & Nuclear
Natalia Bulina, Olga B. Vinokurova, Natalia Eremina, Igor Y. Prosanov, Vyacheslav R. Khusnutdinov, Marina Chaikina
Summary: The study demonstrates that single-phase hydroxyapatite doped with zinc or copper ions can be obtained through solid-phase mechanochemical synthesis within 30 minutes, with dopant ions mainly occupying the sites of calcium ions. The research findings can be applied in the production of medical bioresorbable items and coatings with antibacterial properties.
JOURNAL OF SOLID STATE CHEMISTRY
(2021)
Article
Materials Science, Ceramics
Evgeniya A. Syukkalova, Anastasia V. Sadetskaya, Natalya D. Demidova, Natalia P. Bobrysheva, Mikhail G. Osmolowsky, Mikhail A. Voznesenskiy, Olga M. Osmolovskaya
Summary: In this study, calcium phosphate nanoparticles were synthesized using a scalable hydrothermal method with significantly lower holding time. The effects of surfactants and dopants on the nanoparticles formation process were discussed, with the possibility of regulating morphological parameters demonstrated. Additionally, the thermal properties of the nanoparticles were reported, showing the influence of surfactant presence on preventing sintering at high temperatures and shifting decomposition temperature to higher values.
CERAMICS INTERNATIONAL
(2021)
Article
Materials Science, Ceramics
Natalia Bulina, Olga B. Vinokurova, Igor Yu. Prosanov, Alexander M. Vorobyev, Konstantin B. Gerasimov, Irina A. Borodulina, Artyom Pryadko, Vladimir V. Botvin, Maria A. Surmeneva, Roman A. Surmenev
Summary: Hydroxyapatite (HA) is a biocompatible material commonly used in biomedical applications, but it lacks bioactivity and antibacterial properties. This study demonstrates a soft mechanochemical method of synthesizing bioactive HA with strontium and/or magnesium ion substitutions. The resulting materials were characterized using various techniques and it was found that magnesium substitution reduces thermal stability, while strontium substitution does not. The study highlights the importance of considering the low thermal stability of cosubstituted HA during the manufacturing of medical devices.
CERAMICS INTERNATIONAL
(2022)
Article
Chemistry, Physical
Svetlana V. Makarova, Natalia V. Bulina, Yuliya A. Golubeva, Lyubov S. Klyushova, Natalya B. Dumchenko, Svetlana S. Shatskaya, Arcady V. Ishchenko, Mikhail V. Khvostov, Dina V. Dudina
Summary: In this study, substituted hydroxyapatite containing zinc and silicon ions was synthesized using mechanochemical methods. The synthesized materials showed good structure when co-substituted with HA up to a certain concentration. In vitro experiments demonstrated high biocompatibility and low cytotoxicity of the synthesized material, making it suitable for medical applications such as bone tissue restoration and manufacture of biodegradable implants.
Article
Chemistry, Physical
Jianping Zhu, Yuxuan Xiang, Jun Zhao, Hongchun Wang, Yixiao Li, Bizhu Zheng, Huajin He, Zhongru Zhang, Jianyu Huang, Yong Yang
Summary: Silicon doping negatively affects the ionic transportation in grain bulk, but can increase grain boundary conductivity and total conductivity to around 10(-3) S.cm(-1) by inducing the segregation of LiTiOPO4. This finding highlights the critical importance of adjusting secondary phase for microstructure and ionic conductivity of solid electrolytes in the development of inorganic fast ionic conductors.
ENERGY STORAGE MATERIALS
(2022)
Article
Energy & Fuels
Prem Sagar Shukla, Anant Agrawal, Anurag Gaur, G. D. Varma
Summary: This study investigates the effect of Zn doping on the electrochemical properties of MnCo2O4 (MCO). The results show that Zn doping significantly improves the electrode's BET surface area and mesoporous distribution, leading to enhanced electrochemical characteristics. The constructed ASC device demonstrates excellent performance in terms of energy density, power density, and cycle stability.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Thermodynamics
Patricia Osorio Ferreira, Aniele de Moura, Amanda Cosmo de Almeida, Everton Carvalho dos Santos, Ana Carolina Kogawa, Flavio Junior Caires
Summary: Cocrystallization is an efficient strategy to enhance the physicochemical properties of bioactive agents. In this study, a new norfloxacin-saccharin cocrystal and a cocrystal-solvate were synthesized using mechanochemical methods, with solubility experiments showing significant improvements in aqueous solubility compared to the pristine state.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2022)
Article
Thermodynamics
Aniele de Moura, Caroline Gaglieri, Luiz Carlos da Silva-Filho, Flavio Junior Caires
Summary: A new methodology for synthesizing a curcumin derivative was studied, which proved to be more efficient and environmentally friendly compared to traditional methods. The mechanochemical method was used, confirming the feasibility and advantages of this novel approach.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2021)
Article
Chemistry, Multidisciplinary
Misae Otoyama, Kentaro Kuratani, Hironori Kobayashi
Summary: The study successfully enhanced the ionic conductivity of sulfide solid electrolytes by adding LiI and Li3PS4 through mechanochemical treatment, while maintaining air stability.
Article
Chemistry, Multidisciplinary
Ivana Katarina Ivkovic, Stanislav Kurajica, Marina Duplancic, Fabio Faraguna, Tea Grbesic
Summary: Manganese doped nanosized ceria samples were prepared using mechanochemical synthesis and characterized using various techniques. Different synthesis conditions were tested, and the product was found to contain cerium carbonate, cerium chloride, and an amorphous phase. The introduction of manganese led to changes in the lattice constant and bandgap of ceria, and the doped samples showed promising catalytic activity.
Article
Engineering, Electrical & Electronic
Priyanka Chhillar, Bhanu Pratap Dhamaniya, Sandeep Kumar Pathak, Supravat Karak
Summary: This study investigates the effect of incorporating Mg2+ in the CsPbI3 lattice. It has been found that the photoactive gamma-phase of CsPbI3 can be stabilized at room temperature in a nitrogen atmosphere by incorporating Mg2+ inside the lattice, leading to enhanced optoelectronic properties and phase stability.
ACS APPLIED ELECTRONIC MATERIALS
(2022)
Article
Pharmacology & Pharmacy
Jean Baptiste Ngilirabanga, Marique Aucamp, Halima Samsodien
Summary: Solid-state co-grinding was utilized to form a eutectic LMZT (1:1) between lamivudine (3TC) and zidovudine (AZT), resulting in lower melting transition and enhanced solubility. This co-crystal synthesis method presents a potential green approach for dual-API delivery systems. Further studies are recommended to explore stability and antiviral activity of this combination.
JOURNAL OF DRUG DELIVERY SCIENCE AND TECHNOLOGY
(2021)
Article
Materials Science, Multidisciplinary
Fupo He, Chao Qiu, Yao Wang, Teliang Lu, Jiandong Ye
Summary: The aim of this study was to fabricate silicon/gallium co-substituted tricalcium phosphate bioceramics that can promote osteoblast activities and hinder osteoclast activities. The results showed that silicon/gallium co-substitution promoted the transition of beta-tricalcium phosphate to alpha-tricalcium phosphate and resulted in new phases. Compared to single gallium substitution, the silicon/gallium co-substitution retained the high mechanical strength of bioceramics and maintained the inhibitory effect on osteoclast activities. Tricalcium phosphate bioceramics with substitutions of 2.5 mol% gallium and 10 mol% silicon exhibited considerable mechanical strength, enhanced osteoblast activities, and restrained osteoclast activities, making them potentially useful for reconstructing bone defects in the environment of osteoporosis.
JOURNAL OF MATERIALS SCIENCE
(2022)
Article
Biotechnology & Applied Microbiology
Caroline Richard, Melissa Alfred-Arulrasa, Harikrishnan Ramadas, Pubudu Tharanga Mahagamage, Thomas Defforge, Gael Gaultier, Cecile Autret-Lambert, Nathalie Poirot, Eric Champion, Amandine Magnaudeix
Summary: The purpose of this study was to synthesize economic calcium phosphate powders from recycled oyster shells using a ball milling method. Oyster shell powder and calcium pyrophosphate powder were ball milled and heat treated to produce calcium phosphate powders. Mesoporous silicon microparticles synthesized electrochemically were added to the prepared phosphate powders. Analysis using X-ray diffraction, Fourier transform infrared spectroscopy, and scanning electron microscopy was conducted to determine the chemical composition and process conditions. The produced powders exhibited good biocompatibility according to in vitro testing with murine cells.
FRONTIERS IN BIOENGINEERING AND BIOTECHNOLOGY
(2023)
Review
Materials Science, Multidisciplinary
Dina Dudina, Konstantinos Georgarakis, Eugene A. Olevsky
Summary: This review discusses the application of field-assisted sintering in the powder metallurgy processing of aluminium and magnesium matrix composites, and presents the characteristics of materials obtained by spark plasma sintering, microwave sintering, and induction sintering.
INTERNATIONAL MATERIALS REVIEWS
(2023)
Article
Chemistry, Physical
Ilya Yakovlev, Serguei Tikhov, Evgeny Gerasimov, Tatiana Kardash, Konstantin Valeev, Aleksei Salanov, Yurii Chesalov, Olga Lapina, Oleg Lomovskii, Dina Dudina
Summary: The low specific surface area of metal powders produced by mechanical treatment often limits their use in various fields. This study explores the effect of hydrogen treatment on the structure of mechanically treated powders. A metal-oxide nanocomposite powder was successfully produced by mechanical alloying and high-pressure hydrogenation. The resulting nanocomposite shows potential for the synthesis of Fischer-Tropsch catalysts, due to its pulverization and an increase in specific sites.
Article
Materials Science, Multidisciplinary
V. S. Bystrov, E. V. Paramonova, A. V. Bystrova, L. A. Avakyan, N. V. Bulina
Summary: The structural and physical properties of hydroxyapatite with Sr/Ca substitutions were studied using Quantum ESPRESSO calculations. The lattice constants showed a similar increase after Sr/Ca substitutions compared to the experimental data. The changes in band gap and electron work function, as well as the polarization and piezoelectric properties, were estimated using quantum-chemical calculations.
Article
Chemistry, Physical
Svetlana V. Makarova, Natalia V. Bulina, Yuliya A. Golubeva, Lyubov S. Klyushova, Natalya B. Dumchenko, Svetlana S. Shatskaya, Arcady V. Ishchenko, Mikhail V. Khvostov, Dina V. Dudina
Summary: In this study, substituted hydroxyapatite containing zinc and silicon ions was synthesized using mechanochemical methods. The synthesized materials showed good structure when co-substituted with HA up to a certain concentration. In vitro experiments demonstrated high biocompatibility and low cytotoxicity of the synthesized material, making it suitable for medical applications such as bone tissue restoration and manufacture of biodegradable implants.
Article
Materials Science, Composites
Igor S. S. Batraev, Vladimir Yu. Ulianitsky, Alexandr A. A. Shtertser, Dina V. V. Dudina, Arina V. V. Ukhina
Summary: It is important to study the possibility of spraying binder-free carbides to improve the operating temperature and corrosion resistance of cermet coatings. In this work, chromium carbide powder was sprayed using a detonation gun, resulting in composite coatings with compositions depending on the gas mixture used. The phase compositions of the coatings were found to affect their mechanical properties and wear resistance.
JOURNAL OF COMPOSITES SCIENCE
(2023)
Article
Materials Science, Composites
Arina V. Ukhina, Dina V. Dudina, Maksim A. Esikov, Dmitrii A. Samoshkin, Sergei V. Stankus
Summary: In this study, carbide-forming metallic additives (W, Mo, Cr, Ti) were added to the copper matrix to enhance the wettability of diamond particles in copper-diamond composites. The samples were prepared using SPS and HP techniques at 920°C. The phase composition, microstructure, and thermal conductivity of the samples were investigated. The concentration of carbide-forming additive, sintering method, and type of metal introduced into the copper matrix were found to influence the thermal conductivity of copper-diamond composites. Among the additives, titanium exhibited the most significant improvement in wettability at the copper-diamond interface due to its higher solubility in copper and ability to diffuse through the copper matrix, resulting in closer contact at the interface.
JOURNAL OF COMPOSITES SCIENCE
(2023)
Article
Materials Science, Multidisciplinary
Vyacheslav I. Kvashnin, Dina Dudina, Boris B. Bokhonov, Sergey A. Petrov, Arina V. Ukhina, Konstantinos Georgarakis, Francisco Gil Coury, Guilherme Yuuki Koga
Summary: In this study, a glassy Fe66Cr10Nb5B19 alloy and its crystalline counterpart were spark plasma sintered with aluminum at 570 degrees C to investigate the interfacial reactions in the systems. It was found that in the mixture containing the crystalline alloy, alpha-(Fe,Cr) and Fe2B reacted with aluminum forming the Fe-Al inter-metallic reaction products. The absence of alpha-(Fe,Cr) and Fe2B in the composite sintered from the glassy alloy was confirmed by Mo center dot ssbauer spectroscopy. Overall, the crystalline alloy showed higher reactivity towards aluminum than the glassy alloy, which can be attributed to the presence of alpha-(Fe,Cr), a Fe-rich phase.
Article
Materials Science, Multidisciplinary
Alexander Zh. Medvedev, Boris B. Bokhonov, Oleg S. Kiselev, Arina Ukhina, Dina Dudina, Alexander Y. Alekseev, Lyubov S. Adamenko, Maria Solomatina, Alexander M. Shestopalov
Summary: In this study, a melt-blown polypropylene tape was modified with silver nanoparticles using chemical metallization. The antibacterial, antifungal, and antiviral activities of the silver-modified materials were comprehensively tested for the first time. The results showed strong antibacterial and antifungal activities of the silver-modified materials, especially at high concentrations of silver, and they were found to be effective against the SARS-CoV-2 virus. The silver-modified fiber tape can be used in face mask manufacturing and as an antimicrobial and antiviral component in liquid and gaseous media filters.
Article
Chemistry, Physical
Tomila M. Vidyuk, Arina V. Ukhina, Alexander I. Gavrilov, Vladislav S. Shikalov, Alexander G. Anisimov, Oleg I. Lomovsky, Dina V. Dudina
Summary: This study synthesized tungsten carbides in a copper matrix using spark plasma sintering (SPS) and investigated the microstructure formation mechanisms of the composite materials. The influence of high-energy mechanical milling (MM) time and SPS temperature on tungsten carbide synthesis in an inert copper matrix was analyzed. The WC-W2C-Cu composite exhibited promising mechanical and functional properties including high hardness, good electrical conductivity, low porosity, low friction coefficient, and low specific wear rate.
Article
Materials Science, Multidisciplinary
Igor S. Batraev, Vladimir Yu. Ulianitsky, Alexandr A. Shtertser, Dina V. Dudina, Konstantin V. Ivanyuk, Vyacheslav I. Kvashnin, Yaroslav L. Lukyanov, Marina N. Samodurova, Evgeny A. Trofimov
Summary: The use of detonation spraying and spark plasma sintering for the formation of high-entropy alloy coatings is explored in this study. The powder-blend-based route allows for the introduction of additives and the subsequent SPS treatment produces alloys with a single-phase structure and low porosity.
Article
Crystallography
Marina V. Chaikina, Natalia V. Bulina, Igor Yu. Prosanov, Arcady V. Ishchenko
Summary: The biomineralization of apatite, a common phosphate mineral, has been studied extensively by scientists for over a century. The formation of marine sedimentary phosphate ores is still a topic of debate, as the concentrations of phosphates in water are too low for spontaneous precipitation. In this study, the phase equilibria of calcium phosphate and fluoride compounds were investigated, revealing the formation of different compounds in acidic and neutral/alkaline conditions.
Article
Materials Science, Composites
Dina V. Dudina, Vyacheslav I. Kvashnin, Boris B. Bokhonov, Mikhail A. Legan, Aleksey N. Novoselov, Yuliya N. Bespalko, Alberto Moreira Jorge Jr, Guilherme Y. Koga, Arina V. Ukhina, Alexandr A. Shtertser, Alexander G. Anisimov, Konstantinos Georgarakis
Summary: The microstructural features and mechanical properties of composites formed by spark plasma sintering of Al + 20 vol.% Fe and Al + 20 vol.% Fe66Cr10Nb5B19 mixtures composed of micrometer-sized particles were investigated. The pressure applied during sintering affected the thickness of reaction products formed between the iron particles and aluminum. The nature of reinforcement particles played a significant role in determining the hardness and compressive strength of the composites.
JOURNAL OF COMPOSITES SCIENCE
(2023)
Article
Chemistry, Physical
Vladimir S. Bystrov, Ekaterina V. Paramonova, Leon A. Avakyan, Natalya V. Eremina, Svetlana V. Makarova, Natalia V. Bulina
Summary: This study investigates the substitutions of magnesium and calcium in hydroxyapatite (HAP), the main mineral component of bones and teeth. The analysis reveals that the HAP-Mg unit cell parameters and volume decrease with increasing magnesium concentration. The positions of substitutions affect the distances between ions and result in changes in cell parameters and distortion. The electronic structure is found to be sensitive to the number and position of substitutions, offering the potential to adjust the optical properties of HAP-Mg material.
Article
Chemistry, Multidisciplinary
Dina V. Dudina, Vyacheslav I. Kvashnin, Alexander A. Matvienko, Anatoly A. Sidelnikov, Alexander I. Gavrilov, Arina V. Ukhina, Alberto Moreira Jorge, Konstantinos Georgarakis
Summary: Metallic-glass-reinforced metal matrix composites are a new type of composite materials, in which amorphous alloys act as reinforcement. This study investigated the morphology of the reaction products formed when Fe66Cr10Nb5B19 metallic glass particles interacted with aluminum. The composites were processed using spark plasma sintering, hot pressing, or a combination of both. The reaction products observed included dense layers covering the alloy cores, needles protruding from the shells, and needles and platelets distributed in the aluminum matrix. The role of the liquid phase in the structure formation and the occurrence of pores due to the Kirkendall effect were discussed.
CHEMISTRY-SWITZERLAND
(2023)