Article
Chemistry, Multidisciplinary
Inna V. Fadeeva, Dina V. Deyneko, Katia Barbaro, Galina A. Davydova, Margarita A. Sadovnikova, Fadis F. Murzakhanov, Alexander S. Fomin, Viktoriya G. Yankova, Iulian V. Antoniac, Sergey M. Barinov, Bogdan I. Lazoryak, Julietta V. Rau
Summary: Gadolinium-containing calcium phosphates with different synthesis methods have distinct physical and chemical properties, exhibit inhibition effects on bacteria and fungi, and show no toxicity to cells.
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
Multidisciplinary Sciences
Agata Kurzyk, Aleksandra Szwed-Georgiou, Joanna Pagacz, Agnieszka Antosik, Paulina Tymowicz-Grzyb, Anna Gerle, Piotr Szterner, Marcin Wlodarczyk, Przemyslaw Plocinski, Mateusz M. Urbaniak, Karolina Rudnicka, Monika Biernat
Summary: This study investigates the effect of calcination on the physicochemical and biological properties of nanoHAP, as well as the influence of doping with magnesium, strontium, and zinc. The results show that calcination induces particle agglomeration and changes in surface morphology of nanoHAP, but ion substitution does not affect the apatite structure. The combination of calcination and ion modification promotes cell proliferation and osteoblast response.
SCIENTIFIC REPORTS
(2023)
Article
Energy & Fuels
Jinpeng Lv, Xiangyu Wen
Summary: Passive thermal control coatings are widely used in spacecraft to adjust the thermal equilibrium of surfaces. The development of new coatings with improved properties and radiation hardness is crucial for space assets in harsh environments.
SOLAR ENERGY MATERIALS AND SOLAR CELLS
(2022)
Article
Materials Science, Ceramics
Shengnan Xu, Fengyu Jia, Guodong Zhang, Hongbo Zhang, Chunhui Su, Weihua Hu
Summary: A transparent glass-ceramic containing Y2Sn2O7 crystal was synthesized, and the optimal heat treatment conditions were determined. The different microstructures of precursor glasses and glass-ceramics were explored using fluorescence probe characteristics. The emission spectra of Dy2O3-Eu2O3 co-doped glass-ceramic samples showed energy transfer of Dy3+-*Eu3+ and the potential to obtain warm white light.
CERAMICS INTERNATIONAL
(2023)
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
Geochemistry & Geophysics
Dinara R. Khayrutdinova, Margarita A. Goldberg, Olga S. Antonova, Polina A. Krokhicheva, Alexander S. Fomin, Tatiana O. Obolkina, Anatoliy A. Konovalov, Suraya A. Akhmedova, Irina K. Sviridova, Valentina A. Kirsanova, Natalia S. Sergeeva, Sergey M. Barinov, Vladimir S. Komlev
Summary: Powders based on beta-tricalcium phosphate (3-TCP) containing up to 12.0 mol.% sulphate groups were synthesized through chemical precipitation. Characterization of the materials included X-ray phase analysis, Fourier transform infrared spectroscopy, specific surface area measurement, scanning electron microscopy, energy dispersive analysis, synchronous thermal analysis, mass spectra investigations, and biological assays. The findings showed that the sulphate groups present in the materials were lost during heat treatment at 900 or 1200 C, and these groups contributed to the formation of hydroxyapatite at high concentration. The powders exhibited specific surface areas in the range of 81.7-96.5 m(2)/g, and demonstrated cytocompatibility and matrix properties in cell culture.
Article
Biochemistry & Molecular Biology
Inna Fadeeva, Dina Deyneko, Anna A. Forysenkova, Vladimir A. Morozov, Suraya A. Akhmedova, Valentina A. Kirsanova, Irina K. Sviridova, Natalia S. Sergeeva, Sergey A. Rodionov, Irina L. Udyanskaya, Iulian Antoniac, Julietta Rau
Summary: In this study, Sr2+-substituted beta-tricalcium phosphate ceramics were synthesized and their physicochemical properties and biocompatibility were investigated. The results showed that the introduction of Sr2+ ions significantly improved cell adhesion, proliferation, and cytocompatibility of the samples.
Article
Nanoscience & Nanotechnology
Frank Czerwinski
Summary: The strength retention of Al-Ce binary alloys at high temperatures was assessed compared to A380 alloy and pure Al. The Al11Ce3 eutectic and proeutectic phases were found to have limited effectiveness in strengthening Al-Ce alloys at room temperature and retaining their strength at increased temperatures. Despite the high hardness retention ratio of Al-Ce alloys, the yield stress decreased with testing temperatures.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2021)
Article
Chemistry, Physical
D. Yodkantee, A. Prasatkhetragarn, N. Chanthima, Y. Tariwong, S. Kothan, S. Rujirawat, R. Yimnirun, P. Kidkhunthod, H. J. Kim, P. Limsuwan, J. Kaewkhao
Summary: The study investigated the effects of Gd2O3 and CeF3 modifications on potassium gadolinium phosphate glasses scintillators. Results showed that the optimal concentrations for Gd2O3 and CeF3 were 9 and 17 mol% and 5 mol%, respectively. These findings are important for the research and development of radiation detector materials.
RADIATION PHYSICS AND CHEMISTRY
(2021)
Article
Chemistry, Multidisciplinary
Diana Griesiute, Eva Raudonyte-Svirbutaviciene, Aivaras Kareiva, Aleksej Zarkov
Summary: The present study investigates the influence of annealing conditions on phase transformations in calcium phosphates. The phase composition and Ca/P ratio in the final product highly depend on the annealing conditions due to the evaporation of phosphate species. Drastic changes in stoichiometry and phase composition were observed after annealing in a vacuum.
Article
Thermodynamics
S. Kurajica, V. Mandic, K. Muzina, I. Panzic, D. Kralj, M. Duplancic, I. K. Ivkovic
Summary: This study investigates the synthesis and properties of cerium aluminate catalyst. The catalyst is prepared through combustion synthesis involving aluminum and cerium nitrates and glycine in the presence of palladium chloride. The obtained material is characterized using various techniques, and it is found to exhibit high catalytic activity for the toluene oxidation process.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2023)
Article
Chemistry, Multidisciplinary
L. N. Ignatieva, Yu Marchenko, N. N. Savchenko, E. B. Merkulov, A. G. Mirochnik
Summary: A series of bismuth-containing fluorozirconate glasses were successfully synthesized in different systems, showing improved thermal stability and crystallization resistance when BiPO4 component was introduced. Heat treatment of these systems could lead to the crystallization of specific compositions in the glass matrices.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2021)
Article
Chemistry, Physical
Daniela Kujawa, Daria Szewczyk, Vitalii Boiko, Damian Beben, Pawel Gluchowski
Summary: Gadolinium, gallium, aluminum garnet doped with cerium and co-doped with dysprosium ions were prepared using sol gel method. The addition of graphene improved the thermal conductivity and fading of persistent luminescence, making it possible for room temperature applications.
Article
Chemistry, Inorganic & Nuclear
Daichi Noda, Iori Yamada, Kenji Shinozaki, Motohiro Tagaya
Summary: This study investigated the phase transition of Ca-deficient hydroxyapatite (CDHA) with citric acid (Cit) coordination. The addition of Cit promoted the substitution of K+ ions into CDHA, resulting in the formation of the HA phase. Doping K+ increased the phase transition temperature of CDHA, leading to the transition to beta- and alpha-tricalcium phosphates at higher temperatures. These findings suggest the controllable phase transition via the addition of Cit.
DALTON TRANSACTIONS
(2022)
