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Nizamov TR, Amirov AA, Kuznetsova TO, Dorofievich IV, Bordyuzhin IG, Zhukov DG, Ivanova AV, Gabashvili AN, Tabachkova NY, Tepanov AA, Shchetinin IV, Abakumov MA, Savchenko AG, Majouga AG. Synthesis and Functional Characterization of Co xFe 3-xO 4-BaTiO 3 Magnetoelectric Nanocomposites for Biomedical Applications. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:811. [PMID: 36903693 PMCID: PMC10004808 DOI: 10.3390/nano13050811] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/20/2023] [Revised: 02/13/2023] [Accepted: 02/15/2023] [Indexed: 06/18/2023]
Abstract
Nowadays, magnetoelectric nanomaterials are on their way to finding wide applications in biomedicine for various cancer and neurological disease treatment, which is mainly restricted by their relatively high toxicity and complex synthesis. This study for the first time reports novel magnetoelectric nanocomposites of CoxFe3-xO4-BaTiO3 series with tuned magnetic phase structures, which were synthesized via a two-step chemical approach in polyol media. The magnetic CoxFe3-xO4 phases with x = 0.0, 0.5, and 1.0 were obtained by thermal decomposition in triethylene glycol media. The magnetoelectric nanocomposites were synthesized by the decomposition of barium titanate precursors in the presence of a magnetic phase under solvothermal conditions and subsequent annealing at 700 °C. X-ray diffraction revealed the presence of both spinel and perovskite phases after annealing with average crystallite sizes in the range of 9.0-14.5 nm. Transmission electron microscopy data showed two-phase composite nanostructures consisting of ferrites and barium titanate. The presence of interfacial connections between magnetic and ferroelectric phases was confirmed by high-resolution transmission electron microscopy. Magnetization data showed expected ferrimagnetic behavior and σs decrease after the nanocomposite formation. Magnetoelectric coefficient measurements after the annealing showed non-linear change with a maximum of 89 mV/cm*Oe with x = 0.5, 74 mV/cm*Oe with x = 0, and a minimum of 50 mV/cm*Oe with x = 0.0 core composition, that corresponds with the coercive force of the nanocomposites: 240 Oe, 89 Oe and 36 Oe, respectively. The obtained nanocomposites show low toxicity in the whole studied concentration range of 25-400 μg/mL on CT-26 cancer cells. The synthesized nanocomposites show low cytotoxicity and high magnetoelectric effects, therefore they can find wide applications in biomedicine.
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Affiliation(s)
- Timur R. Nizamov
- Department of Physical Materials Science, National University of Science and Technology “MISiS”, 119049 Moscow, Russia
| | - Abdulkarim A. Amirov
- Amirkhanov Institute of Physics of Dagestan Federal Research Center, Russian Academy of Sciences, 367003 Makhachkala, Russia
| | - Tatiana O. Kuznetsova
- Department of Physical Materials Science, National University of Science and Technology “MISiS”, 119049 Moscow, Russia
| | - Irina V. Dorofievich
- Department of Physical Materials Science, National University of Science and Technology “MISiS”, 119049 Moscow, Russia
| | - Igor G. Bordyuzhin
- Department of Physical Materials Science, National University of Science and Technology “MISiS”, 119049 Moscow, Russia
| | - Dmitry G. Zhukov
- Department of Physical Materials Science, National University of Science and Technology “MISiS”, 119049 Moscow, Russia
| | - Anna V. Ivanova
- Department of Physical Materials Science, National University of Science and Technology “MISiS”, 119049 Moscow, Russia
| | - Anna N. Gabashvili
- Department of Physical Materials Science, National University of Science and Technology “MISiS”, 119049 Moscow, Russia
| | - Nataliya Yu. Tabachkova
- Department of Materials Science of Semiconductors and Dielectrics, National University of Science and Technology “MISiS”, 119049 Moscow, Russia
| | | | - Igor V. Shchetinin
- Department of Physical Materials Science, National University of Science and Technology “MISiS”, 119049 Moscow, Russia
| | - Maxim A. Abakumov
- Department of Physical Materials Science, National University of Science and Technology “MISiS”, 119049 Moscow, Russia
- Department of Medical Nanobiotechnology, N.I. Pirogov Russian National Research Medical University, 117997 Moscow, Russia
| | - Alexander G. Savchenko
- Department of Physical Materials Science, National University of Science and Technology “MISiS”, 119049 Moscow, Russia
| | - Alexander G. Majouga
- Department of Physical Materials Science, National University of Science and Technology “MISiS”, 119049 Moscow, Russia
- Chemistry Department, Lomonosov Moscow State University, 119991 Moscow, Russia
- Mendeleev University of Chemical Technology of Russia, 125047 Moscow, Russia
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Gao L, Deng J, Li T, Qi K, Zhang J, Yi Q. A facial strategy to efficiently improve catalytic performance of CoFe 2O 4 to peroxymonosulfate. J Environ Sci (China) 2022; 116:1-13. [PMID: 35219407 DOI: 10.1016/j.jes.2021.06.030] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2021] [Revised: 06/23/2021] [Accepted: 06/25/2021] [Indexed: 06/14/2023]
Abstract
Cobalt iron spinel (CoFe2O4) has been considered as a good heterogeneous catalysis to peroxymonosulfate (PMS) in the degradation of persistent organic pollutants due to its magnetic properties and good chemical stability. However, its catalytic activity needs to be further improved. Here, a facial strategy, "in-situ substitution", was adopted to modify CoFe2O4 to improve its catalytic performance just by suitably increasing the Co/Fe ratio in synthesis process. Compared with CoFe2O4, the newly synthesized Co1.5Fe1.5O4, could not only significantly improve the degradation efficiency of phenol, from 50.69 to 93.6%, but also exhibited more effective mineralization ability and higher PMS utilization. The activation energy advantage for phenol degradation using Co1.5Fe1.5O4 was only 44.2 kJ/mol, much lower than that with CoFe2O4 (127.3 kJ/mol). A series of related representations of CoFe2O4 and Co1.5Fe1.5O4 were compared to explore the possible reasons for the outstanding catalytic activity of Co1.5Fe1.5O4. Results showed that Co1.5Fe1.5O4 as well represented spinel crystal as CoFe2O4 and the excess cobalt just partially replaced the position of iron without changing the original structure. Co1.5Fe1.5O4 had smaller particle size (8.7 nm), larger specific surface area (126.3 m2/g), which was more favorable for exposure of active sites. Apart from the superior physical properties, more importantly, more reactive centers Co (Ⅱ) and surface hydroxyl compounds generated on Co1.5Fe1.5O4, which might be the major reason. Furthermore, Co1.5Fe1.5O4 behaved good paramagnetism, wide range of pH suitability and strong resistance to salt interference, making it a new prospect in environmental application.
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Affiliation(s)
- Lili Gao
- College of Environmental Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, China.
| | - Jieqiong Deng
- College of Environmental Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, China
| | - Tong Li
- College of Environmental Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, China
| | - Kai Qi
- College of Environmental Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, China
| | - Jiandong Zhang
- College of Biomedical Engineering, Taiyuan University of Technology, Taiyuan 030024, China
| | - Qun Yi
- College of Environmental Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, China.
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