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Cao Y, Song Y, Fan X, Ma L, Feng T, Zeng J, Xue C, Xu J. A smartphone-assisted sensing hydrogels based on UCNPs@SiO 2-phenol red nanoprobes for detecting the pH of aquatic products. Food Chem 2024; 451:139428. [PMID: 38678665 DOI: 10.1016/j.foodchem.2024.139428] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2024] [Revised: 04/11/2024] [Accepted: 04/18/2024] [Indexed: 05/01/2024]
Abstract
For some aquatic products, pH has been considered a useful index to reflect the changes in materials during the loss of freshness. Based on the inner filter effect (IFE) between deprotonated phenol red (PR) and upconversion nanoparticles (UCNPs), UCNPs coated with PR-doped SiO2 shell were embedded in agarose hydrogel to develop a smartphone-assisted method for pH sensing. With the enhancement of pH response using a phase transfer agent (i.e., tetra butyl ammonium hydroxide, TBAH), the proposed senor realized the colorimetric and fluorescence detection of pH in the range of pH 6.6-8 and pH 6-8, respectively. The sensor also showed satisfied reversibility when switched between pH 6 and 8 for at least 5 cycles. Moreover, this sensor displayed great sensitivity, stability, and portability in analyzing actual fish, shrimp, and shellfish samples, providing a new sight for evaluating the freshness of aquatic products.
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Affiliation(s)
- Yunrui Cao
- State Key Laboratory of Marine Food Processing & Safety Control, College of Food Science and Engineering, Ocean University of China, No. 1299, Sansha Road, Qingdao, Shandong Province 266003, PR China.
| | - Yu Song
- State Key Laboratory of Marine Food Processing & Safety Control, College of Food Science and Engineering, Ocean University of China, No. 1299, Sansha Road, Qingdao, Shandong Province 266003, PR China.
| | - Xiaowei Fan
- State Key Laboratory of Marine Food Processing & Safety Control, College of Food Science and Engineering, Ocean University of China, No. 1299, Sansha Road, Qingdao, Shandong Province 266003, PR China
| | - Lei Ma
- State Key Laboratory of Marine Food Processing & Safety Control, College of Food Science and Engineering, Ocean University of China, No. 1299, Sansha Road, Qingdao, Shandong Province 266003, PR China.
| | - Tingyu Feng
- Qingdao Institute of Marine Bioresources for Nutrition & Health Innovation, No. 106, Xiangyang Road, Qingdao, Shandong Province 266109, PR China
| | - Junpeng Zeng
- State Key Laboratory of Marine Food Processing & Safety Control, College of Food Science and Engineering, Ocean University of China, No. 1299, Sansha Road, Qingdao, Shandong Province 266003, PR China
| | - Changhu Xue
- State Key Laboratory of Marine Food Processing & Safety Control, College of Food Science and Engineering, Ocean University of China, No. 1299, Sansha Road, Qingdao, Shandong Province 266003, PR China; Qingdao Marine Science and Technology Center, Qingdao 266235, PR China.
| | - Jie Xu
- State Key Laboratory of Marine Food Processing & Safety Control, College of Food Science and Engineering, Ocean University of China, No. 1299, Sansha Road, Qingdao, Shandong Province 266003, PR China.
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2
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Ma L, Gu Y, Guo L, Wang K. The determination of 11 sulfonamide antibiotics in water and foods by developing a N-rich magnetic covalent organic framework combined with ultra-high performance liquid chromatography-tandem mass spectrometry. RSC Adv 2024; 14:21318-21327. [PMID: 38979455 PMCID: PMC11228574 DOI: 10.1039/d4ra02530j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2024] [Accepted: 06/21/2024] [Indexed: 07/10/2024] Open
Abstract
The concentration of antibiotic residues in water and animal-derived foods is low and the matrix is complex, and effective extraction of antibiotic residues in them is a key factor for accurate quantification. It is important to establish a rapid and effective method for the analytical determination of antibiotics in water and foods. In this study, a type of novel magnetic COF (Fe3O4@SiO2@PDE-TAPB-COF) was synthesized and characterized. Moreover, Fe3O4@SiO2@PDE-TAPB-COF combined with ultra-high performance liquid chromatography-tandem mass spectrometry was used to determine the 11 sulfonamide antibiotics (SAs) in water and food. The parameters including pH, adsorption amount, adsorption time, type of elution solvent and elution time were optimized. Under the optimal conditions, the standard curves of 11 SAs showed good linearity (R 2 > 0.999) in their respective concentration ranges and had lower detection and quantification limits. The spiked recoveries of the developed MSPE-UPLC-MS/MS method for the 11 SAs in water and foods were 74.3-107.2% and 75.1-102.5%, respectively. And the relative standard deviations (RSDs) were less than 9.56% (n = 7). The results indicated that the method can be used for the determination of SAs in foods and water with low detection limits and high sensitivity.
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Affiliation(s)
- Ling Ma
- Shijiazhuang Center for Disease Control and Prevention Shijiazhuang 050011 China
- Shijiazhuang Technology Innovation Center for Chemical Poison Detection and Risk Early Warning Shijiazhuang 050011 China
| | - Yue Gu
- Shijiazhuang Center for Disease Control and Prevention Shijiazhuang 050011 China
- Shijiazhuang Technology Innovation Center for Chemical Poison Detection and Risk Early Warning Shijiazhuang 050011 China
| | | | - Ke Wang
- Shijiazhuang Center for Disease Control and Prevention Shijiazhuang 050011 China
- Shijiazhuang Technology Innovation Center for Chemical Poison Detection and Risk Early Warning Shijiazhuang 050011 China
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3
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Nitu, Fopase R, Pandey LM, Hazarika KP, Borah JP, Singh RK, Srinivasan A. Enhancement in the induction heating efficacy of sol-gel derived SiO 2-CaO-Na 2O-P 2O 5 bioglass-ceramics by incorporating magnetite nanoparticles. J Mater Chem B 2024; 12:3494-3508. [PMID: 38512116 DOI: 10.1039/d3tb03014h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/22/2024]
Abstract
Magnetite (Fe3O4) nanoparticle (MNP)-substituted glass-ceramic (MSGC) powders with compositions of (45 - x)SiO2-24.5CaO-24.5Na2O-6P2O5-xFe3O4 (x = 5, 8, and 10 wt%) have been prepared by a sol-gel route by introducing Fe3O4 nanoparticles during the synthesis. The X-ray diffraction patterns of the as-prepared MSGC nanopowders revealed the presence of combeite (Na2Ca2Si3O9), magnetite, and sodium nitrate (NaNO3) crystalline phases. Heat-treatment up to 700 °C for 1 h resulted in the complete dissolution of NaNO3 along with partial conversion of magnetite into hematite (α-Fe2O3). Optimal heat-treatment of the MSGC powders at 550 °C for 1 h yielded the highest relative percentage of magnetite (without hematite) with some residual NaNO3. The saturation magnetization and heat generation capacity of the MSGC fluids increased with an increase in the MNP content. The in vitro bioactivity of the MSGC pellets was evaluated by monitoring the pH and the formation of a hydroxyapatite surface layer upon immersion in modified simulated body fluid. Proliferation of MG-63 osteoblast cells indicated that all of the MSGC compositions were non-toxic and MSGC with 10 wt% MNPs exhibited extraordinarily high cell viability. The MSGC with 10 wt% MNPs demonstrated optimal characteristics in terms of cell viability, magnetic properties, and induction heating capacity, which surpass those of the commercial magnetic fluid FluidMag-CT employed in hyperthermia treatment.
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Affiliation(s)
- Nitu
- Department of Physics, Indian Institute of Technology Guwahati, Guwahati 781039, India.
| | - Rushikesh Fopase
- Bio-Interface & Environmental Engineering Lab, Department of Biosciences and Bioengineering, Indian Institute of Technology, Guwahati, Guwahati 781039, India
| | - Lalit Mohan Pandey
- Bio-Interface & Environmental Engineering Lab, Department of Biosciences and Bioengineering, Indian Institute of Technology, Guwahati, Guwahati 781039, India
| | - Krishna Priya Hazarika
- Department of Science and Humanities, National Institute of Technology Nagaland, 797103, India
| | - Jyoti Prasad Borah
- Department of Science and Humanities, National Institute of Technology Nagaland, 797103, India
| | - Rajendra K Singh
- Institute of Tissue Regeneration Engineering (ITREN), Dankook University, Cheonan, 31116, Republic of Korea
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4
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Güneş M, Aktaş K, Yalçın B, Burgazlı AY, Asilturk M, Ünşar AE, Kaya B. In vivo assessment of the toxic impact of exposure to magnetic iron oxide nanoparticles (IONPs) using Drosophila melanogaster. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2024; 107:104412. [PMID: 38492762 DOI: 10.1016/j.etap.2024.104412] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/28/2023] [Revised: 02/21/2024] [Accepted: 03/11/2024] [Indexed: 03/18/2024]
Abstract
Iron oxide nanoparticles (IONPs) have useful properties, such as strong magnetism and compatibility with living organisms which is preferable for medical applications such as drug delivery and imaging. However, increasing use of these materials, especially in medicine, has raised concerns regarding potential risks to human health. In this study, IONPs were coated with silicon dioxide (SiO2), citric acid (CA), and polyethylenimine (PEI) to enhance their dispersion and biocompatibility. Both coated and uncoated IONPs were assessed for genotoxic effects on Drosophila melanogaster. Results showed that uncoated IONPs induced genotoxic effects, including mutations and recombinations, while the coated IONPs demonstrated reduced or negligible genotoxicity. Additionally, bioinformatic analyses highlighted potential implications of induced recombination in various cancer types, underscoring the importance of understanding nanoparticle-induced genomic instability. This study highlights the importance of nanoparticle coatings in reducing potential genotoxic effects and emphasizes the necessity for comprehensive toxicity assessments in nanomaterial research.
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Affiliation(s)
- Merve Güneş
- Department of Biology, Faculty of Sciences, Akdeniz University, Antalya, Turkey.
| | - Kemal Aktaş
- Department of Environmental Engineering, Faculty of Engineering, Akdeniz University, Antalya, Turkey
| | - Burçin Yalçın
- Department of Biology, Faculty of Sciences, Akdeniz University, Antalya, Turkey
| | | | - Meltem Asilturk
- Department of Material Science and Engineering, Faculty of Engineering, Akdeniz University, Antalya, Turkey
| | - Ayca Erdem Ünşar
- Department of Environmental Engineering, Faculty of Engineering, Akdeniz University, Antalya, Turkey
| | - Bülent Kaya
- Department of Biology, Faculty of Sciences, Akdeniz University, Antalya, Turkey
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5
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Polli AD, Oliveira Junior VAD, Ribeiro MADS, Polonio JC, Rosini B, Oliveira JADS, Bini RD, Golias HC, Fávaro-Polonio CZ, Orlandelli RC, Vicentini VEP, Cotica LF, Peralta RM, Pamphile JA, Azevedo JL. Synthesis, characterization, and reusability of novel nanobiocomposite of endophytic fungus Aspergillus flavus and magnetic nanoparticles (Fe 3O 4) with dye bioremediation potential. CHEMOSPHERE 2023; 340:139956. [PMID: 37640209 DOI: 10.1016/j.chemosphere.2023.139956] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/13/2023] [Revised: 08/14/2023] [Accepted: 08/22/2023] [Indexed: 08/31/2023]
Abstract
The incorrect disposal of textile dyes, such as Reactive Black 5 (RB5), causes several problems for living beings and the quality of the environment. Nanobiocomposites (NBC) produced from endophytic fungi (potentially remediation dyes-agents) and magnetic nanoparticles have high biotechnological potential due to their superparamagnetic behavior, which would allow their recovery through the magnetic field after the bioremediation process. This work aimed to obtain a new nanobiocomposite from the interaction of magnetite nanoparticles (Fe3O4) with the endophyte Aspergillus flavus (Af-CL-7) to evaluate its bioremediation capacity and to reduce the toxicity of RB5 and its reuse. Before obtaining the NBC, Af-CL-7 showed discoloration of RB5 and it was tolerant to all tested concentrations of this dye. The discovery of the nanobiocomposite textile dye bioremediator product presents a significant environmental advantage by addressing the issue of water pollution caused by textile dyes. The NBC called Af-Fe3O4 was successfully obtained with the magnetized endophyte, and their magnetic properties were verified by VSM analysis and by action of magnetic fields generated by Nd-Fe-B magnets SEM analyzes showed that the nanoparticles did not cause any damage to the hypha morphology, and TEM analyzes confirmed the presence of nanoparticles in the fungus wall and also inside the cell. The NBC Af-Fe3O4 and Af-CL-7 showed, respectively, 96.1% and 92.2% of RB5 discoloration in the first use, 91.1% e 86.2% of discoloration in the validation test, and 89.0% in NBC reuse. In the toxicological bioassay with Lactuca sativa seeds, NBC showed a positive reduction in the toxicity of RB5 after treatment, allowing the hypocotyl growth to be statistically similar to the control with water. Thus, we highlight the promising obtaining process of NBC that could be applied in bioremediation of contaminated waters, wherein the industrial economic cost will depend on the fermentation efficiency, biomass production and nanoparticle synthesis.
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Affiliation(s)
- Andressa Domingos Polli
- Laboratory of Microbial Biotechnology. Department of Biotechnology, Genetics and Cell Biology, State University of Maringá, 87020-900, Maringá, Paraná, Brazil
| | - Verci Alves de Oliveira Junior
- Laboratory of Microbial Biotechnology. Department of Biotechnology, Genetics and Cell Biology, State University of Maringá, 87020-900, Maringá, Paraná, Brazil
| | - Marcos Alessandro Dos Santos Ribeiro
- Laboratory of Microbial Biotechnology. Department of Biotechnology, Genetics and Cell Biology, State University of Maringá, 87020-900, Maringá, Paraná, Brazil
| | - Julio Cesar Polonio
- Laboratory of Microbial Biotechnology. Department of Biotechnology, Genetics and Cell Biology, State University of Maringá, 87020-900, Maringá, Paraná, Brazil.
| | - Bianca Rosini
- Laboratory of Microbial Biotechnology. Department of Biotechnology, Genetics and Cell Biology, State University of Maringá, 87020-900, Maringá, Paraná, Brazil
| | - João Arthur Dos Santos Oliveira
- Laboratory of Microbial Biotechnology. Department of Biotechnology, Genetics and Cell Biology, State University of Maringá, 87020-900, Maringá, Paraná, Brazil
| | | | - Halison Correia Golias
- Academic Department of Humanities, Federal Technological University of Paraná, Apucarana, Paraná, Brazil
| | - Cintia Zani Fávaro-Polonio
- Laboratory of Microbial Biotechnology. Department of Biotechnology, Genetics and Cell Biology, State University of Maringá, 87020-900, Maringá, Paraná, Brazil
| | - Ravely Casarotti Orlandelli
- Laboratory of Microbial Biotechnology. Department of Biotechnology, Genetics and Cell Biology, State University of Maringá, 87020-900, Maringá, Paraná, Brazil
| | | | | | | | - João Alencar Pamphile
- Laboratory of Microbial Biotechnology. Department of Biotechnology, Genetics and Cell Biology, State University of Maringá, 87020-900, Maringá, Paraná, Brazil
| | - João Lúcio Azevedo
- Department of Genetics, College of Agriculture "Luiz de Queiroz", University of São Paulo, 13418-900, Piracicaba, São Paulo, Brazil
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Fallahizadeh S, Gholami M, Rahimi MR, Esrafili A, Farzadkia M, Kermani M. Enhanced photocatalytic degradation of amoxicillin using a spinning disc photocatalytic reactor (SDPR) with a novel Fe 3O 4@void@CuO/ZnO yolk-shell thin film nanostructure. Sci Rep 2023; 13:16185. [PMID: 37758793 PMCID: PMC10533499 DOI: 10.1038/s41598-023-43437-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2023] [Accepted: 09/23/2023] [Indexed: 09/29/2023] Open
Abstract
Antibiotics are resistant compounds with low biological degradation that generally cannot be removed by conventional wastewater treatment processes. The use of yolk-shell nanostructures in spinning disc photocatalytic reactor (SDPR) enhances the removal efficiency due to their high surface-to-volume ratio and increased interaction between catalyst particles and reactants. The purpose of this study is to investigate the SDPR equipped to Fe3O4@void@CuO/ZnO yolk-shell thin film nanostructure (FCZ YS) in the presence of visible light illumination in the photocatalytic degradation of amoxicillin (AMX) from aqueous solutions. Stober, co-precipitation, and self-transformation methods were used for the synthesis of FCZ YS thin film nanostructure and the physical and chemical characteristics of the catalyst were analyzed by XRD, VSM,, EDX, FESEM, TEM, AFM, BET, contact angle (CA), and DRS. Then, the effect of different parameters including pH (3-11), initial concentration of AMX (10-50 mg/L), flow rate (10-25 mL/s) and rotational speed (100-400 rpm) at different times in the photocatalytic degradation of AMX were studied. The obtained results indicated that the highest degradation efficiency of 97.6% and constant reaction rate of AMX were obtained under LED visible light illumination and optimal conditions of pH = 5, initial AMX concentration of 30 mg/L, solution flow rate of 15 mL/s, rotational speed of 300 rpm and illumination time of 80 min. The durability and reusability of the nanostructure were tested, that after 5 runs had a suitable degradation rate. Considering the appropriate efficiency of amoxicillin degradation by FCZ YS nanostructure, the use of Fe3O4@void@CuO/ZnO thin film in SDPR is suggested in water and wastewater treatment processes.
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Affiliation(s)
- Saeid Fallahizadeh
- Research Center for Environmental Health Technology, Iran University of Medical Sciences, Tehran, Iran
- Department of Environmental Health Engineering, School of Public Health, Iran University of Medical Sciences, Tehran, Iran
| | - Mitra Gholami
- Research Center for Environmental Health Technology, Iran University of Medical Sciences, Tehran, Iran.
- Department of Environmental Health Engineering, School of Public Health, Iran University of Medical Sciences, Tehran, Iran.
| | - Mahmood Reza Rahimi
- Process Intensification Laboratory, Department of Chemical Engineering, Yasouj University, Yasouj, 75918-74831, Iran.
| | - Ali Esrafili
- Research Center for Environmental Health Technology, Iran University of Medical Sciences, Tehran, Iran
- Department of Environmental Health Engineering, School of Public Health, Iran University of Medical Sciences, Tehran, Iran
| | - Mahdi Farzadkia
- Research Center for Environmental Health Technology, Iran University of Medical Sciences, Tehran, Iran
- Department of Environmental Health Engineering, School of Public Health, Iran University of Medical Sciences, Tehran, Iran
| | - Majid Kermani
- Research Center for Environmental Health Technology, Iran University of Medical Sciences, Tehran, Iran
- Department of Environmental Health Engineering, School of Public Health, Iran University of Medical Sciences, Tehran, Iran
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7
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Sensitive detection of SARS-CoV-2 spike protein based on electrochemical impedance spectroscopy of Fe 3O 4@SiO 2–Au/GCE biosensor. ADVANCED SENSOR AND ENERGY MATERIALS 2023; 2:100067. [PMCID: PMC10212796 DOI: 10.1016/j.asems.2023.100067] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Revised: 05/23/2023] [Accepted: 05/24/2023] [Indexed: 02/25/2024]
Abstract
Highly contagious COVID-19 disease is caused by a novel severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), which poses a serious threat to global public health. Therefore, the development of a fast and reliable method for the detection of SARS-CoV-2 is an urgent research need. The Fe3O4@SiO2–Au is enriched with a variety of functional groups, which can be used to fabricate a sensitive electrochemical biosensor by biofunctionalization with angiotensin-converting enzyme 2 (ACE2). Accordingly, we developed a novel electrochemical sensor by chemically modifying a glassy carbon electrode (GCE) with Fe3O4@SiO2–Au nanocomposites (hereafter Fe3O4@SiO2–Au/GCE) for the rapid detection of S-protein spiked SARS-CoV-2 by electrochemical impedance spectroscopy (EIS). The new electrochemical sensor has a low limit detection (viz., 4.78 pg/mL) and a wide linear dynamic range (viz., 0.1 ng/mL to 10 μg/mL) for detecting the EIS response signal of S-protein. The robust Fe3O4@SiO2–Au/GCE biosensor has high selectivity, stability, and reproducibility for the detection of S-protein with good recovery of saliva samples.
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8
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Sabouri Z, Sabouri M, Moghaddas SSTH, Darroudi M. Design and preparation of amino-functionalized core-shell magnetic nanoparticles for photocatalytic application and investigation of cytotoxicity effects. JOURNAL OF ENVIRONMENTAL HEALTH SCIENCE & ENGINEERING 2023; 21:93-105. [PMID: 37159737 PMCID: PMC10163196 DOI: 10.1007/s40201-022-00842-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/03/2022] [Accepted: 11/13/2022] [Indexed: 05/11/2023]
Abstract
The goal of the current paper was a synthesis of Amino-functionalized Fe3O4@SiO2 core-shell magnetic nanoparticles as a unique efficient photocatalyst for removing organic dyes from aqueous environments. The magnetic Fe3O4@SiO2 core-shell was produced by a silica source to avoid aggregation by the co-precipitation method. Next, functionalized by using 3-Aminopropyltriethoxysilane (APTES) via a post-synthesis link. The chemical structure, magnetic properties, and shape of the manufactured photocatalyst (Fe3O4@SiO2-NH2) were described by XRD, VSM, FT-IR, FESEM, EDAX, and DLS/Zeta potential analyses. The XRD findings approved the successful synthesis of nanoparticles. The photocatalytic activity of Fe3O4@SiO2-NH2 nanoparticles was examined for MB degradation and the degradation performance was about 90% in the optimum conditions. Also, the cytotoxicity of Fe3O4, Fe3O4@SiO2 core-shell, and Fe3O4@SiO2-NH2 nanoparticles was examined on CT-26 cells using an MTT assay, the finding has shown that nanoparticles can be used for inhibiting cancer cells. Graphical abstract
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Affiliation(s)
- Zahra Sabouri
- Department of Medical Biotechnology and Nanotechnology, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
- Medical Toxicology Research Center, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mohammad Sabouri
- School of Civil Engineering, University of Science and Technology (UST), Tehran, Iran
| | | | - Majid Darroudi
- Department of Medical Biotechnology and Nanotechnology, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
- Nuclear Medicine Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
- Department of Basic Medical Sciences, Neyshabur University of Medical Sciences, Neyshabur, Iran
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9
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Yu C, Yang W, Yang L, Ye L, Sun R, Gu T, Ying X, Wang M, Tang R, Fan S, Yao S. Synergistic Effect of Magneto-Mechanical Bioengineered Stem Cells and Magnetic Field to Alleviate Osteoporosis. ACS APPLIED MATERIALS & INTERFACES 2023; 15:19976-19988. [PMID: 37058439 DOI: 10.1021/acsami.3c01139] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
Therapeutic bioengineering based on stem cell therapy holds great promise in biomedical applications. However, the application of this treatment is limited in orthopedics because of their poor survival, weak localization, and low cell retention. In this work, magneto-mechanical bioengineered cells consisting of magnetic silica nanoparticles (MSNPs) and mesenchymal stem cells (MSCs) are prepared to alleviate osteoporosis. The magneto-mechanical bioengineered MSCs with spatial localization, cell retention, and directional tracking capabilities could be mediated by a guided magnetic field (MF) in vitro and in vivo. Furthermore, high uptake rates of the MSNPs ensure the efficient construction of magnetically controlled MSCs within 2 h. In conjunction with external MF, the magneto-mechanical bioengineered MSCs have the potential for the activation of the YAP/β-catenin signaling pathway, which could further promote osteogenesis, mineralization, and angiogenesis. The synergistic effects of MSNPs and guided MF could also decline bone resorption to rebalance bone metabolism in bone loss diseases. In vivo experiments confirm that the functional MSCs and guided MF could effectively alleviate postmenopausal osteoporosis, and the bone mass of the treated osteoporotic bones by using the bioengineered cells for 6 weeks is nearly identical to that of the healthy ones. Our results provide a new avenue for osteoporosis management and treatment, which contribute to the future advancement of magneto-mechanical bioengineering and treatment.
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Affiliation(s)
- Congcong Yu
- Department of Orthopaedic Surgery, Sir Run Run Shaw Hospital School of Medicine, Zhejiang University, Hangzhou 310016, Zhejiang, China
- Key Laboratory of Musculoskeletal System Degeneration and Regeneration, Translational Research of Zhejiang Province, Hangzhou 310016, Zhejiang, China
| | - Wentao Yang
- Department of Orthopaedic Surgery, Sir Run Run Shaw Hospital School of Medicine, Zhejiang University, Hangzhou 310016, Zhejiang, China
- Key Laboratory of Musculoskeletal System Degeneration and Regeneration, Translational Research of Zhejiang Province, Hangzhou 310016, Zhejiang, China
| | - Linjun Yang
- Department of Orthopaedic Surgery, Sir Run Run Shaw Hospital School of Medicine, Zhejiang University, Hangzhou 310016, Zhejiang, China
- Key Laboratory of Musculoskeletal System Degeneration and Regeneration, Translational Research of Zhejiang Province, Hangzhou 310016, Zhejiang, China
| | - Lin Ye
- Department of Orthopaedic Surgery, Sir Run Run Shaw Hospital School of Medicine, Zhejiang University, Hangzhou 310016, Zhejiang, China
- Key Laboratory of Musculoskeletal System Degeneration and Regeneration, Translational Research of Zhejiang Province, Hangzhou 310016, Zhejiang, China
| | - Rongtai Sun
- Department of Orthopaedic Surgery, Sir Run Run Shaw Hospital School of Medicine, Zhejiang University, Hangzhou 310016, Zhejiang, China
- Key Laboratory of Musculoskeletal System Degeneration and Regeneration, Translational Research of Zhejiang Province, Hangzhou 310016, Zhejiang, China
| | - Tianyuan Gu
- Department of Orthopaedic Surgery, Sir Run Run Shaw Hospital School of Medicine, Zhejiang University, Hangzhou 310016, Zhejiang, China
- Key Laboratory of Musculoskeletal System Degeneration and Regeneration, Translational Research of Zhejiang Province, Hangzhou 310016, Zhejiang, China
| | - Xiaozhang Ying
- Department of Orthopaedic Surgery, Sir Run Run Shaw Hospital School of Medicine, Zhejiang University, Hangzhou 310016, Zhejiang, China
- Key Laboratory of Musculoskeletal System Degeneration and Regeneration, Translational Research of Zhejiang Province, Hangzhou 310016, Zhejiang, China
- Department of Orthopaedics, Zhejiang Integrated Traditional Chinese and Western Medicine Hospital, Hangzhou 310003, Zhejiang, China
| | - Monian Wang
- Department of Orthopaedic Surgery, Sir Run Run Shaw Hospital School of Medicine, Zhejiang University, Hangzhou 310016, Zhejiang, China
- Key Laboratory of Musculoskeletal System Degeneration and Regeneration, Translational Research of Zhejiang Province, Hangzhou 310016, Zhejiang, China
| | - Ruikang Tang
- Center for Biomaterials and Biopathways, Department of Chemistry, Zhejiang University, Hangzhou 310027, Zhejiang, China
| | - Shunwu Fan
- Department of Orthopaedic Surgery, Sir Run Run Shaw Hospital School of Medicine, Zhejiang University, Hangzhou 310016, Zhejiang, China
- Key Laboratory of Musculoskeletal System Degeneration and Regeneration, Translational Research of Zhejiang Province, Hangzhou 310016, Zhejiang, China
| | - Shasha Yao
- Department of Orthopaedic Surgery, Sir Run Run Shaw Hospital School of Medicine, Zhejiang University, Hangzhou 310016, Zhejiang, China
- Key Laboratory of Musculoskeletal System Degeneration and Regeneration, Translational Research of Zhejiang Province, Hangzhou 310016, Zhejiang, China
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10
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Wang X, Sun N, Dong X, Qi M, Huang H. Preparation of a SiO 2 @Carbon Sphere/SiO 2 -CNF Multilayer Self-standing Anode Prepared via an Alternate Electrospraying - Electrospinning Technique. Chem Asian J 2023; 18:e202201198. [PMID: 36782101 DOI: 10.1002/asia.202201198] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Revised: 01/28/2023] [Indexed: 02/15/2023]
Abstract
The development of flexible lithium-ion batteries (FLIBs) is restrained by traditional rigidity anodes. Carbon nanofiber (CNF) is a promising anode material owing to its high specific surface and superior ion transportation capability. However, the low amount of active material loaded on the CNFs and the poor stability during long cycling restrain their applications. Herein, a SiO2 @carbon sphere/SiO2 -CNF self-standing anode was prepared via alternate electrospraying-electrospinning. The SiO2 content of the anode was increased through the electrospraying SiO2 @carbon spheres layers, and the electrospun SiO2 -CNFs as robust layers enhanced the stability of the anode. The self-standing anode exhibited 633 mA h g-1 in the initial cycle and maintained a 70% Coulomb efficiency for 1000 cycles at a current density of 100 mA g-1 , which could be applied in FLIB and other electrochemical storage devices.
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Affiliation(s)
- Xuhui Wang
- School of Materials Science and Engineering, Energy Materials and Devices Laboratory, Dalian University of Technology, Dalian, 116024, P. R. China
| | - Na Sun
- School of Materials Science and Engineering, Energy Materials and Devices Laboratory, Dalian University of Technology, Dalian, 116024, P. R. China
| | - Xufeng Dong
- School of Materials Science and Engineering, Energy Materials and Devices Laboratory, Dalian University of Technology, Dalian, 116024, P. R. China
| | - Min Qi
- School of Materials Science and Engineering, Energy Materials and Devices Laboratory, Dalian University of Technology, Dalian, 116024, P. R. China
| | - Hao Huang
- School of Materials Science and Engineering, Energy Materials and Devices Laboratory, Dalian University of Technology, Dalian, 116024, P. R. China
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11
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Park JH, Lee JW, Ahn H, Kang YT. Development of novel nanoabsorbents by amine functionalization of Fe3O4 with intermediate ascorbic acid coating for CO2 capture enhancement. J CO2 UTIL 2022. [DOI: 10.1016/j.jcou.2022.102228] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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12
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Feng H, Li M, Xing Z, Ouyang XK, Ling J. Efficient delivery of fucoxanthin using metal–polyphenol network-coated magnetic mesoporous silica. J Drug Deliv Sci Technol 2022. [DOI: 10.1016/j.jddst.2022.103842] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
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13
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Pirhadi L, Rangaswamy A, Soleimani E. PO 3H 2-Functionalized Fe 3O 4@SiO 2 Core–Shell as an Efficient and Magnetic Nanocatalyst for the Preparation of Dihydropyrimidinones via Biginelli Condensation. Polycycl Aromat Compd 2022. [DOI: 10.1080/10406638.2021.1891104] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Leila Pirhadi
- Department of Chemistry, Razi University, Kermanshah, Iran
| | - Alana Rangaswamy
- College of Pharmacy, Dalhousie University, Halifax, Nova Scotia, Canada
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14
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Sargazi M, Kaykhaii M. Magnetic Covalent Organic Frameworks-Fundamentals and Applications in Analytical Chemistry. Crit Rev Anal Chem 2022:1-27. [PMID: 35939351 DOI: 10.1080/10408347.2022.2107872] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
Abstract
Magnetic covalent organic frameworks are new emerging materials which, besides many other applications, have found unique applications in analytical chemistry as separating media and adsorbents. They have outstanding features such as special morphology, chemical and thermal stability, high adsorption capacity, good magnetic response, high specific surface area, uniform pore size distribution, strong π-π interactions with analytes and high reusability that makes reported studies on their properties and applications increased in the recent years. After discussing the methods of synthesis of MCOFs with different geometries that cause their special physic-chemical properties, this review focuses on their high potential which has been exhibited in various applications in extraction and pre-concentration of different analytes such as organic compounds, heavy metal ions and biological samples. The article also highlights the applications of magnetic covalent organic frameworks in other chemical analysis such as adsorbent and being used in sensors.
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Affiliation(s)
| | - Massoud Kaykhaii
- Department of Process Engineering and Chemical Technology, Faculty of Chemistry, Gdansk University of Technology, Gdansk, Poland
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15
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Blanco-Gutiérrez V, Li P, Berzal-Cabetas R, Dos santos-García A. Exploring the photocatalytic activity of nanometric magnetite for PET materials degradation under UV light. J SOLID STATE CHEM 2022. [DOI: 10.1016/j.jssc.2022.123509] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
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16
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Sachdeva V, Monga A, Vashisht R, Singh D, Singh A, Bedi N. Iron Oxide Nanoparticles: The precise strategy for targeted delivery of genes, oligonucleotides and peptides in cancer therapy. J Drug Deliv Sci Technol 2022. [DOI: 10.1016/j.jddst.2022.103585] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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17
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Fabrication of a Double Core–Shell Particle-Based Magnetic Nanocomposite for Effective Adsorption-Controlled Release of Drugs. Polymers (Basel) 2022; 14:polym14132681. [PMID: 35808726 PMCID: PMC9269019 DOI: 10.3390/polym14132681] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2022] [Revised: 06/24/2022] [Accepted: 06/27/2022] [Indexed: 12/07/2022] Open
Abstract
There has been very limited work on the control loading and release of the drugs aprepitant and sofosbuvir. These drugs need a significant material for the control of their loading and release phenomenon that can supply the drug at its target site. Magnetic nanoparticles have characteristics that enable them to be applied in biomedical fields and, more specifically, as a drug delivery system when they are incorporated with a biocompatible polymer. The coating with magnetic nanoparticles is performed to increase efficiency and reduce side effects. In this regard, attempts are made to search for suitable materials retaining biocompatibility and magnetic behavior. In the present study, silica-coated iron oxide nanoparticles were incorporated with core–shell particles made of poly(2-acrylamido-2-methylpropane sulfonic acid)@butyl methacrylate to produce a magnetic composite material (MCM-PA@B) through the free radical polymerization method. The as-prepared composite materials were characterized through Fourier-transform infrared (FTIR)spectroscopy, scanning electron microscopy (SEM), X-ray diffraction analysis (XRD), energy-dispersive X-Ray Analysis (EDX), and thermogravimetric analysis (TGA), and were further investigated for the loading and release of the drugs aprepitant and sofosbuvir. The maximum loading capacity of 305.76 mg/g for aprepitant and 307 mg/g for sofosbuvir was obtained at pH 4. Various adsorption kinetic models and isotherms were applied on the loading of both drugs. From all of the results obtained, it was found that MCM-PA@B can retain the drug for more than 24 h and release it slowly, due to which it can be applied for the controlled loading and targeted release of the drugs.
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18
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Functionalization of magnetic nanoparticles by creatine as a novel and efficient catalyst for the green synthesis of 2-amino-4H-chromene derivatives. Sci Rep 2022; 12:10664. [PMID: 35739165 PMCID: PMC9226349 DOI: 10.1038/s41598-022-14844-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2021] [Accepted: 06/13/2022] [Indexed: 11/21/2022] Open
Abstract
By employing the naturally-originated molecule of creatine, Fe3O4@SiO2-creatine as an environmentally benign magnetic organometallic nanobiocatalyst was successfully prepared via a convenient and green route. Then to acquire an inclusive comprehension of different properties of the catalyst, it was studied by various characterization techniques such as FT‐IR, FE-SEM, TEM, EDX, XRD, and VSM analyses. It was found that the size distribution of nanoparticles was an average diameter size of 70 nm. To examine the catalytic activity, it was applied in sequential knoevenagel condensation-Michael addition room temperature reaction of dimedone, malononitrile, and different substituted aromatic aldehydes to produce a variety of 2-amino-tetrahydro-4H-chromene-3-carbonitrile derivatives in a single step. Among the multiple outstanding advantages that can be mentioned for this work, some of the most noticeable ones include: affording the products in short reaction times with high yields, operating the reaction at ambient conditions and ease of catalyst separation.
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19
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Bölükbaşi ÖS, Yola BB, Karaman C, Atar N, Yola ML. Electrochemical α-fetoprotein immunosensor based on Fe 3O 4NPs@covalent organic framework decorated gold nanoparticles and magnetic nanoparticles including SiO 2@TiO 2. Mikrochim Acta 2022; 189:242. [PMID: 35654985 DOI: 10.1007/s00604-022-05344-z] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Accepted: 05/15/2022] [Indexed: 01/09/2023]
Abstract
The early diagnosis of major diseases such as cancer is typically a major issue for humanity. Human α-fetoprotein (AFP) as a sialylated glycoprotein is of approximately 68 kD molecular weight and is considered to be a key biomarker, and an increase in its level indicates the presence of liver, testicular, or gastric cancer. In this study, an electrochemical AFP immunosensor based on Fe3O4NPs@covalent organic framework decorated gold nanoparticles (Fe3O4 NPs@COF/AuNPs) for the electrode platform and double-coated magnetic nanoparticles (MNPs) based on SiO2@TiO2 (MNPs@SiO2@TiO2) nanocomposites for the signal amplification was fabricated. The immobilization of anti-AFP capture antibody was successfully performed on Fe3O4 NPs@COF/AuNPs modified electrode surface by amino-gold affinity, while the conjugation of anti-AFP secondary antibody on MNPs@SiO2@TiO2 was achieved by the electrostatic/ionic interactions. Transmission electron microscopy (TEM), X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR) analysis, cyclic voltammetry (CV), square wave voltammetry (SWV), and electrochemical impedance spectroscopy (EIS) techniques were used to characterize the nanostructures in terms of physical and electrochemical features. The limit of detection (LOD) was 3.30 fg mL-1. The findings revealed that the proposed electrochemical AFP immunosensor can be effectively used to diagnose cancer.
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Affiliation(s)
- Ömer Saltuk Bölükbaşi
- Department of Metallurgical and Materials Engineering, Faculty of Engineering and Natural Sciences, Iskenderun Technical University, Iskenderun, Hatay, Turkey
| | - Bahar Bankoğlu Yola
- Department of Engineering Basic Sciences, Faculty of Engineering and Natural Sciences, Gaziantep Islam Science and Technology University, Gaziantep, Turkey
| | - Ceren Karaman
- Department of Electricity and Energy, Vocational School of Technical Sciences, Akdeniz University, Antalya, Turkey
| | - Necip Atar
- Department of Chemical Engineering, Faculty of Engineering, Pamukkale University, Denizli, Turkey
| | - Mehmet Lütfi Yola
- Department of Nutrition and Dietetics, Faculty of Health Sciences, Hasan Kalyoncu University, Gaziantep, Turkey.
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20
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Preparation of a novel heterogeneous palladium nanocatalyst based on carboxyl modified magnetic nanoparticles and its applications in Suzuki-Miyaura coupling reactions. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.128611] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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21
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Zare-Bakheir E, Ahghari MR, Maleki A, Ghafuri H. Synthesis of Cu(OH) 2 nanowires modified by Fe 3O 4@SiO 2 nanocomposite via green and innovative method with antibacterial activity and investigation of magnetic behaviours. ROYAL SOCIETY OPEN SCIENCE 2022; 9:212025. [PMID: 35706673 PMCID: PMC9156904 DOI: 10.1098/rsos.212025] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/01/2022] [Accepted: 05/09/2022] [Indexed: 05/03/2023]
Abstract
In this study, green synthesis of modified Cu(OH)2 nanowires by Fe3O4@SiO2 core-shell nanospheres was easily performed via chemical reduction. In other words, the direct coating of Cu(OH)2 on Fe3O4@SiO2 was successfully realized without the extra complicated procedures. Various concentrations of synthesized nanocomposites were tested on pathogenic and nosocomial bacteria. In this study, the structural information and characterization of Fe3O4@SiO2/Cu(OH)2 nanowires (FSCNWs) were obtained using FE-SEM, FT-IR, EDX and X-ray diffraction. This nanocomposite can effectively kill important infectious bacteria, including Staphylococcus aureus, Escherichia coli, Staphylococcus saprophyticus, Pseudomonas aeruginosa and Klebsiella pneumoniae. Studies have shown that FSCNW nanocomposites affect common antibiotic-resistant bacteria. This result confirms the function of FSCNW as an effective, beneficial and environmentally friendly antibacterial agent that can used in a wide range of applications in medicine. FSCNWs can be separated conveniently from bacteria-containing solutions using a magnet. Compared with nanocomposites based on other metals such as silver and gold, the use of FSCNWs in water treatment has been recommended because of the precursor of copper for its low price and less toxicity. In addition to its special properties such as mild reaction conditions, green synthesis methods, admissible magnetic properties, easy separation, high antibacterial activity and beneficial efficiency.
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Affiliation(s)
- Ensiye Zare-Bakheir
- Catalysts and Organic Synthesis Research Laboratory, Department of Chemistry, Iran University of Science and Technology, Tehran 16846-13114, Iran
| | - Mohammad Reza Ahghari
- Catalysts and Organic Synthesis Research Laboratory, Department of Chemistry, Iran University of Science and Technology, Tehran 16846-13114, Iran
| | - Ali Maleki
- Catalysts and Organic Synthesis Research Laboratory, Department of Chemistry, Iran University of Science and Technology, Tehran 16846-13114, Iran
| | - Hossein Ghafuri
- Catalysts and Organic Synthesis Research Laboratory, Department of Chemistry, Iran University of Science and Technology, Tehran 16846-13114, Iran
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22
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Neysi M, Elhamifar D. Pd-containing magnetic periodic mesoporous organosilica nanocomposite as an efficient and highly recoverable catalyst. Sci Rep 2022; 12:7970. [PMID: 35562531 PMCID: PMC9106672 DOI: 10.1038/s41598-022-11918-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2021] [Accepted: 04/25/2022] [Indexed: 11/16/2022] Open
Abstract
A novel magnetic ionic liquid based periodic mesoporous organosilica supported palladium (Fe3O4@SiO2@IL-PMO/Pd) nanocomposite is synthesized, characterized and its catalytic performance is investigated in the Heck reaction. The Fe3O4@SiO2@IL-PMO/Pd nanocatalyst was characterized using FT-IR, PXRD, SEM, TEM, VSM, TG, nitrogen-sorption and EDX analyses. This nanocomposite was effectively employed as catalyst in the Heck reaction to give corresponding arylalkenes in high yield. The recovery test was performed to study the catalyst stability and durability under applied conditions.
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Affiliation(s)
- Maryam Neysi
- Department of Chemistry, Yasouj University, Yasouj, 75918-74831, Iran
| | - Dawood Elhamifar
- Department of Chemistry, Yasouj University, Yasouj, 75918-74831, Iran.
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23
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Wang Y, Cheng C, Ma R, Xu Z, Ozaki Y. In situ SERS monitoring of intracellular H 2O 2 in single living cells based on label-free bifunctional Fe 3O 4@Ag nanoparticles. Analyst 2022; 147:1815-1823. [PMID: 35257133 DOI: 10.1039/d2an00035k] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Visualization of signaling molecules in single living cells is crucial for understanding cellular metabolism and physiology, which can provide valuable insights into early diagnoses and treatments of diseases. Highly sensitive in situ monitoring of intracellular analytes released from single living cells by virtue of label-free nanosensors is urgently needed, which can avoid interferences from molecular labeling. Here, we proposed an ultrasensitive strategy for in situ imaging of intracellular H2O2 in single living cancer cells by surface-enhanced Raman scattering (SERS) spectroscopy with the utilization of label-free Fe3O4@Ag core-satellite nanoparticles (NPs). The Fe3O4@Ag NPs can efficiently and selectively catalyze the oxidation of the peroxidase substrate 3,3',5,5'-tetramethylbenzidine (TMB) in the presence of H2O2. Additionally, they exhibit excellent SERS activity that allows for in situ monitoring of intracellular H2O2 in living cells through establishing the correlation between the H2O2 level and the SERS intensity of the catalytic oxidation product of TMB. The H2O2 concentration is revealed through the SERS intensity of oxidized TMB with a good linear response in a wide range from 1 fM to 1 mM. Moreover, the intracellular H2O2 level in live cancer cells and imaging of the distribution of H2O2 inside single cells can be achieved by using such a label-free nanosensor based strategy. Our work demonstrates that the label-free Fe3O4@Ag NP-based SERS imaging and quantification strategy is a promising and powerful approach to assess intracellular H2O2 in living cells and allows us to monitor single-cell signaling molecules with nanoscale resolution.
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Affiliation(s)
- Yue Wang
- Department of Chemistry, College of Sciences, Northeastern University, Shenyang 110819, PR China.
| | - Cheng Cheng
- Department of Chemistry, College of Sciences, Northeastern University, Shenyang 110819, PR China.
| | - Ruofei Ma
- Department of Chemistry, College of Sciences, Northeastern University, Shenyang 110819, PR China.
| | - Zhangrun Xu
- Department of Chemistry, College of Sciences, Northeastern University, Shenyang 110819, PR China.
| | - Yukihiro Ozaki
- School of Biological and Environmental Sciences, Kwansei Gakuin University, Sanda, Hyogo 669-1337, Japan.
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24
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Fatimah I, Fadillah G, Purwiandono G, Sahroni I, Purwaningsih D, Riantana H, Avif AN, Sagadevan S. Magnetic-silica nanocomposites and the functionalized forms for environment and medical applications: A review. INORG CHEM COMMUN 2022. [DOI: 10.1016/j.inoche.2022.109213] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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25
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Sustainable Microwave Assisted Synthesis and Anti-proliferative Response of Starch-Based CNT-IO and CNT-ZO Nanocomposites: A Comparative Study. J Inorg Organomet Polym Mater 2022. [DOI: 10.1007/s10904-022-02267-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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26
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Ali Z, Zou J, Liu X, Bai Y, Hussain M, Zhang L, Chen Z, Chen H, Li S, Deng Y, Zhang Y, Tang Y. Coating Silica Layer on Fe₃O₄ Magnetic Nanoparticles and Application in Extracting High Quality Nucleic Acids from Blood Sample. J Biomed Nanotechnol 2022; 18:828-836. [PMID: 35715923 DOI: 10.1166/jbn.2022.3295] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
The given research revealed that the size of Fe₃O₄ magnetic nanoparticles (MNPs) could be controlled by varying the pre-mixing conditions in the solvothermal method. Scanning electron microscopy (SEM) showed that the size of the MNPs gradually increased with increasing the initial temperature at which reaction components were mixed while the reaction component's mixing time was kept constant. The smallest sized MNPs were achieved among the five treatments (25, 50, 75, 100, and 125 °C) when reaction components were mixed at 25 °C, while the larger sized MNPs were synthesized among the five treatments when reaction components were mixed at 125 °C. Then, Stöber method was followed for coating silica layer onto the MNPs. However, ammonium hydroxide was replaced with potassium hydroxide as a catalyst, which significantly increased the speed of silica coating onto MNPs. The Fourier transform infrared (FTIR) spectrometer revealed that the MNPs were successfully covered with silica in five minutes. FTIR spectra exhibited a peak about 1088.8 cm-1, which belonged to the asymmetry stretching vibration of Si-O-Si. Transmission electronic microscopy (TEM) analysis was conducted to confirm the presence of silica layer onto MNPs. Thus, potassium hydroxide was successfully employed as a catalyst for quick silica layer coating onto MNPs. Furthermore, these silica coated MNPs were used to extract high quality nucleic acids from blood sample.
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Affiliation(s)
- Zeeshan Ali
- School of Food and Drug, Shenzhen Polytechnic, Liuxian Avenue, No. 7098, Nanshan District, Shenzhen 518055, Guangdong Province, China
| | - Jun Zou
- School of Materials and Chemical Engineering, Hunan Institute of Engineering, Xiangtan 411104, China
| | - Xiaolong Liu
- School of Food and Drug, Shenzhen Polytechnic, Liuxian Avenue, No. 7098, Nanshan District, Shenzhen 518055, Guangdong Province, China
| | - Yongkai Bai
- School of Food and Drug, Shenzhen Polytechnic, Liuxian Avenue, No. 7098, Nanshan District, Shenzhen 518055, Guangdong Province, China
| | - Mubashir Hussain
- School of Food and Drug, Shenzhen Polytechnic, Liuxian Avenue, No. 7098, Nanshan District, Shenzhen 518055, Guangdong Province, China
| | - Lijun Zhang
- School of Food and Drug, Shenzhen Polytechnic, Liuxian Avenue, No. 7098, Nanshan District, Shenzhen 518055, Guangdong Province, China
| | - Zhu Chen
- Hunan Key Laboratory of Biomedical Nanomaterials and Devices, Hunan University of Technology, Zhuzhou 412007, China
| | - Hui Chen
- Hunan Key Laboratory of Biomedical Nanomaterials and Devices, Hunan University of Technology, Zhuzhou 412007, China
| | - Song Li
- Hunan Key Laboratory of Biomedical Nanomaterials and Devices, Hunan University of Technology, Zhuzhou 412007, China
| | - Yan Deng
- Hunan Key Laboratory of Biomedical Nanomaterials and Devices, Hunan University of Technology, Zhuzhou 412007, China
| | - Yuanying Zhang
- Department of Molecular Biology, Jiangsu Cancer Hospital, Nanjing 210009, P. R. China
| | - Yongjun Tang
- School of Food and Drug, Shenzhen Polytechnic, Liuxian Avenue, No. 7098, Nanshan District, Shenzhen 518055, Guangdong Province, China
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27
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Rana P, Kaushik B, Gaur R, Dutta S, Yadav S, Rana P, Solanki K, Arora B, Biradar AV, Gawande MB, Sharma RK. An Earth-abundant cobalt based photocatalyst: visible light induced direct (het)arene C-H arylation and CO 2 capture. Dalton Trans 2022; 51:2452-2463. [PMID: 35048925 DOI: 10.1039/d1dt03625d] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In this work, we have reported a noble metal free heterogeneous photocatalyst to carry out direct (het)arene C-H arylation and solvent-free CO2 capture via single-electron transfer processes at room temperature and under pressure. The catalytic system comprises a cobalt(III) complex grafted over the silica coated magnetic support for the efficient recovery of the photocatalytic moiety without hampering its light-harvesting capability. The novel Earth-abundant cobalt(III) based photocatalyst possesses various fascinating properties such as high surface area to volume ratios, large pore volume, crystalline behaviour, high metal loading, excellent stability and reusability. The general efficacy of the highly abundant and low-cost cobalt based heterogeneous nanocatalyst was checked for the selective conversion of aryldiazonium salts into synthetically and pharmaceutically significant biaryl motifs under ambient conditions upon irradiation with visible light. The highly efficient photocatalytic conversion of carbon dioxide (CO2) to a value-added chemical was accomplished under mild reaction conditions with high selectivity, showing the added benefit of operational simplicity.
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Affiliation(s)
- Pooja Rana
- Green Chemistry Network Centre, Department of Chemistry, University of Delhi, New Delhi-110007, India.
| | - Bhawna Kaushik
- Green Chemistry Network Centre, Department of Chemistry, University of Delhi, New Delhi-110007, India.
| | - Rashmi Gaur
- Green Chemistry Network Centre, Department of Chemistry, University of Delhi, New Delhi-110007, India.
| | - Sriparna Dutta
- Green Chemistry Network Centre, Department of Chemistry, University of Delhi, New Delhi-110007, India.
| | - Sneha Yadav
- Green Chemistry Network Centre, Department of Chemistry, University of Delhi, New Delhi-110007, India.
| | - Pooja Rana
- Green Chemistry Network Centre, Department of Chemistry, University of Delhi, New Delhi-110007, India.
| | - Kanika Solanki
- Green Chemistry Network Centre, Department of Chemistry, University of Delhi, New Delhi-110007, India.
| | - Bhavya Arora
- Green Chemistry Network Centre, Department of Chemistry, University of Delhi, New Delhi-110007, India.
| | - Ankush V Biradar
- Inorganic Materials and Catalysis Division, CSIR-Central Salt and Marine Chemicals Research Institute, Bhavnagar 364002, Gujarat, India
| | - Manoj B Gawande
- Institute of Chemical Technology Mumbai-Marathwada Campus, Jalna, 431213, Maharashtra, India
| | - R K Sharma
- Green Chemistry Network Centre, Department of Chemistry, University of Delhi, New Delhi-110007, India.
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28
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Azzam AM, Shenashen MA, Selim MS, Mostafa B, Tawfik A, El-Safty SA. Vancomycin-Loaded Furriness Amino Magnetic Nanospheres for Rapid Detection of Gram-Positive Water Bacterial Contamination. NANOMATERIALS 2022; 12:nano12030510. [PMID: 35159855 PMCID: PMC8839226 DOI: 10.3390/nano12030510] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Revised: 01/05/2022] [Accepted: 01/27/2022] [Indexed: 12/21/2022]
Abstract
Bacterial pathogens pose high threat to public health worldwide. Different types of nanomaterials have been synthesized for the rapid detection and elimination of pathogens from environmental samples. However, the selectivity of these materials remains challenging, because target bacterial pathogens commonly exist in complex samples at ultralow concentrations. In this study, we fabricated novel furry amino magnetic poly-L-ornithine (PLO)/amine-poly(ethylene glycol) (PEG)-COOH/vancomycin (VCM) (AM-PPV) nanospheres with high-loading VCM for vehicle tracking and the highly efficient capture of pathogens. The magnetic core was coated with organosilica and functionalized with cilia. The core consisted of PEG/PLO loaded with VCM conjugated to Gram-positive bacterial cell membranes, forming hydrogen bonds with terminal peptides. The characterization of AM-PPV nanospheres revealed an average particle size of 56 nm. The field-emission scanning electron microscopy (FE-SEM) micrographs showed well-controlled spherical AM-PPV nanospheres with an average size of 56 nm. The nanospheres were relatively rough and contained an additional 12.4 nm hydrodynamic layer of PLO/PEG/VCM, which provided additional stability in the suspension. The furry AM-PPV nanospheres exhibited a significant capture efficiency (>90%) and a high selectivity for detecting Bacillus cereus (employed as a model for Gram-positive bacteria) within 15 min, even in the presence of other biocompatible pathogens. Moreover, AM-PPV nanospheres rapidly and accurately detected B. cereus at levels less than 10 CFU/mL. The furry nano-design can potentially satisfy the increasing demand for the rapid and sensitive detection of pathogens in clinical and environmental samples.
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Affiliation(s)
- Ahmed M. Azzam
- National Institute for Materials Science (NIMS), 1-2-1 Sengen, Tsukuba-shi 305-0047, Ibaraki-ken, Japan; (A.M.A.); (M.S.S.)
- Environmental Research Department, Theodor Bilharz Research Institute (TBRI), Imbaba, Giza 12411, Egypt;
| | - Mohamed A. Shenashen
- National Institute for Materials Science (NIMS), 1-2-1 Sengen, Tsukuba-shi 305-0047, Ibaraki-ken, Japan; (A.M.A.); (M.S.S.)
- Egyptian Petroleum Research Institute (EPRI), Nasr City, Cairo 11727, Egypt
- Correspondence: (M.A.S.); (S.A.E.-S.)
| | - Mohamed S. Selim
- National Institute for Materials Science (NIMS), 1-2-1 Sengen, Tsukuba-shi 305-0047, Ibaraki-ken, Japan; (A.M.A.); (M.S.S.)
- Egyptian Petroleum Research Institute (EPRI), Nasr City, Cairo 11727, Egypt
| | - Bayaumy Mostafa
- Environmental Research Department, Theodor Bilharz Research Institute (TBRI), Imbaba, Giza 12411, Egypt;
| | - Ahmed Tawfik
- Water Pollution Research Department, National Research Centre (NRC), Dokki, Giza 12622, Egypt;
| | - Sherif A. El-Safty
- National Institute for Materials Science (NIMS), 1-2-1 Sengen, Tsukuba-shi 305-0047, Ibaraki-ken, Japan; (A.M.A.); (M.S.S.)
- Correspondence: (M.A.S.); (S.A.E.-S.)
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Yang W, Weng C, Li X, Xu W, Fei J, Hong J, Zhang J, Zhu W, Zhou X. An "on-off" ratio photoluminescence sensor based on catalytically induced PET effect by Fe 3O 4 NPs for the determination of coumarin. Food Chem 2022; 368:130838. [PMID: 34425336 DOI: 10.1016/j.foodchem.2021.130838] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Revised: 08/05/2021] [Accepted: 08/09/2021] [Indexed: 12/24/2022]
Abstract
Herein, using Fe3O4 nanoparticles (Fe3O4 NPs) as a magnetic artificial peroxidase, an "on-off" ratiometric photoluminescence sensor with high-sensitivity and high-selectivity for coumarin was constructed based on photoinduced electron transfer (PET) between 7-hydroxycoumarin and rhodamine B (RB). The results showed that Fe3O4 NPs catalyzed H2O2 to generate nucleophilic group ·OH, which attacked the active site of coumarin and produced strong fluorescent 7-hydroxycoumarin molecules. Then, the fluorescence of RB was quenched with 7-hydroxycoumarin through the PET effect. The ratio signal generated in the above process was used for the quantitative detection of coumarin. Under optimized conditions, the linear range 0.5-25 mg/L was acquired for coumarin with the detection limit of 0.016 mg/L. This method had excellent selectivity and the recovery rate was 81.8%-106.8% with the relative standard deviation less than 5.6%, so it can be used for the quantitative analysis of coumarin in complex matrix samples.
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Affiliation(s)
- Wei Yang
- School of Pharmacy, Nanjing Medical University, Nanjing, Jiangsu 211166, China
| | - Chenyuan Weng
- School of Pharmacy, Nanjing Medical University, Nanjing, Jiangsu 211166, China
| | - Xiaoyun Li
- School of Pharmacy, Nanjing Medical University, Nanjing, Jiangsu 211166, China
| | - Wei Xu
- School of Pharmacy, Nanjing Medical University, Nanjing, Jiangsu 211166, China
| | - Jianwen Fei
- School of Pharmacy, Nanjing Medical University, Nanjing, Jiangsu 211166, China
| | - Junli Hong
- School of Pharmacy, Nanjing Medical University, Nanjing, Jiangsu 211166, China
| | - Jun Zhang
- School of Pharmacy, Nanjing Medical University, Nanjing, Jiangsu 211166, China
| | - Wanying Zhu
- School of Pharmacy, Nanjing Medical University, Nanjing, Jiangsu 211166, China.
| | - Xuemin Zhou
- School of Pharmacy, Nanjing Medical University, Nanjing, Jiangsu 211166, China.
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Alagarsamy A, Chandrasekaran S, Manikandan A. Green synthesis and characterization studies of biogenic zirconium oxide (ZrO2) nanoparticles for adsorptive removal of methylene blue dye. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2021.131275] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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31
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Dawn R, Zzaman M, Faizal F, Kiran C, Kumari A, Shahid R, Panatarani C, Joni IM, Verma VK, Sahoo SK, Amemiya K, Singh VR. Origin of Magnetization in Silica-coated Fe 3O 4 Nanoparticles Revealed by Soft X-ray Magnetic Circular Dichroism. BRAZILIAN JOURNAL OF PHYSICS 2022; 52:99. [PMCID: PMC9014780 DOI: 10.1007/s13538-022-01102-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Accepted: 03/31/2022] [Indexed: 05/24/2023]
Abstract
Abstract
Magnetite (Fe3O4) nanoparticles (NPs) and SiO2-coated Fe3O4 nanoparticles have successfully been synthesized using co-precipitation and modified Stöber methods, respectively. The samples were characterized using X-ray diffraction (XRD), Fourier transform infrared (FTIR) spectroscopy, high-resolution transmission electron microscopy (HRTEM), vibrating sample magnetometer (VSM) techniques, X-ray absorption spectroscopy (XAS), and X-ray magnetic circular dichroism (XMCD). XRD and FTIR data confirmed the structural configuration of a single-phase Fe3O4 and the successful formation of SiO2-coated Fe3O4 NPs. XRD also confirmed that we have succeeded to synthesize nano-meter size of Fe3O4 NPs. HRTEM images showed the increasing thickness of SiO2-coated Fe3O4 with the addition of the Tetraethyl Orthosilicate (TEOS). Room temperature VSM analysis showed the magnetic behaviour of Fe3O4 and its variations that occurred after SiO2 coating. The magnetic behaviour is further authenticated by XAS spectra analysis which cleared about the existence of SiO2 shells that have transformed the crystal as well as the local structures of the magnetite NPs. We have performed XMCD measurements, which is a powerful element-specific technique to find out the origin of magnetization in SiO2-coated Fe3O4 NPs, that verified a decrease in magnetization with increasing thickness of the SiO2 coating. Graphical Abstract Magnetite (Fe3O4) nanoparticles (NPs) and SiO2-coated Fe3O4 nanoparticles have successfully been synthesized using co-precipitation and modified Stöber methods, respectively. The samples were characterized using X-ray diffraction (XRD), Fourier transform infrared (FTIR) spectroscopy, high-resolution transmission electron microscopy (HRTEM), vibrating sample magnetometer (VSM) techniques, X-ray absorption spectroscopy (XAS), and X-ray magnetic circular dichroism (XMCD). XRD and FTIR data confirmed the structural configuration of a single-phase Fe3O4 and the successful formation of SiO2-coated Fe3O4 NPs. XRD also confirmed that we have succeeded to synthesize nano-meter size of Fe3O4 NPs. HRTEM images showed the increasing thickness of SiO2-coated Fe3O4 with the addition of the Tetraethyl Orthosilicate (TEOS). Room temperature VSM analysis showed the magnetic behaviour of Fe3O4 and its variations that occurred after SiO2 coating. The magnetic behaviour is further authenticated by XAS spectra analysis which cleared about the existence of SiO2 shells that have transformed the crystal as well as the local structures of the magnetite NPs. We have performed XMCD measurements, which is a powerful element-specific technique to find out the origin of magnetization in SiO2-coated Fe3O4 NPs, that verified a decrease in magnetization with increasing thickness of the SiO2 coating. ![]()
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Affiliation(s)
- R. Dawn
- Department of Physics, Central University of South Bihar, Gaya-824236, India
| | - M. Zzaman
- Department of Physics, Central University of South Bihar, Gaya-824236, India
- Department of Physics, Jamia Millia Islamia (Central University), New Delhi, 110025 India
| | - F. Faizal
- Department of Physics, Universitas Padjadjaran, Jl. Raya Bandung-Sumedang Km 21, West Java, Bandung, 45363 Indonesia
- Functional Nano Powder University Centre of Excellence (FiNder U CoE), Universitas Padjadjaran, Jl. Raya Bandung-Sumedang, Km 21, West Java, Bandung, 45363 Indonesia
| | - C. Kiran
- Department of Animal Sciences, Central University of Kashmir, Ganderbal, 191201 India
| | - A. Kumari
- Department of Physics, Central University of South Bihar, Gaya-824236, India
| | - R. Shahid
- Department of Physics, Jamia Millia Islamia (Central University), New Delhi, 110025 India
| | - C. Panatarani
- Department of Physics, Universitas Padjadjaran, Jl. Raya Bandung-Sumedang Km 21, West Java, Bandung, 45363 Indonesia
- Functional Nano Powder University Centre of Excellence (FiNder U CoE), Universitas Padjadjaran, Jl. Raya Bandung-Sumedang, Km 21, West Java, Bandung, 45363 Indonesia
| | - I. M. Joni
- Department of Physics, Universitas Padjadjaran, Jl. Raya Bandung-Sumedang Km 21, West Java, Bandung, 45363 Indonesia
- Functional Nano Powder University Centre of Excellence (FiNder U CoE), Universitas Padjadjaran, Jl. Raya Bandung-Sumedang, Km 21, West Java, Bandung, 45363 Indonesia
| | - V. K. Verma
- Department of Physics, Madanapalle Institute of Technology & Science, Madanapalle, 517325 India
| | - S. K. Sahoo
- Department of Metallurgical and Materials Engineering, National Institute of Technology, Rourkela, 769008 India
| | - K. Amemiya
- Photon Factory, IMSS, High Energy Accelerator Research Organization, Tsukuba, Ibaraki 305-0801 Japan
| | - V. R. Singh
- Department of Physics, Central University of South Bihar, Gaya-824236, India
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Karapınar HS, Bilgiç A. A new magnetic Fe3O4@SiO2@TiO2-APTMS-CPA adsorbent for simple, fast and effective extraction of aflatoxins from some nuts. J Food Compost Anal 2022. [DOI: 10.1016/j.jfca.2021.104261] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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Magnetite-Silica Core/Shell Nanostructures: From Surface Functionalization towards Biomedical Applications—A Review. APPLIED SCIENCES-BASEL 2021. [DOI: 10.3390/app112211075] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
The interconnection of nanotechnology and medicine could lead to improved materials, offering a better quality of life and new opportunities for biomedical applications, moving from research to clinical applications. Magnetite nanoparticles are interesting magnetic nanomaterials because of the property-depending methods chosen for their synthesis. Magnetite nanoparticles can be coated with various materials, resulting in “core/shell” magnetic structures with tunable properties. To synthesize promising materials with promising implications for biomedical applications, the researchers functionalized magnetite nanoparticles with silica and, thanks to the presence of silanol groups, the functionality, biocompatibility, and hydrophilicity were improved. This review highlights the most important synthesis methods for silica-coated with magnetite nanoparticles. From the presented methods, the most used was the Stöber method; there are also other syntheses presented in the review, such as co-precipitation, sol-gel, thermal decomposition, and the hydrothermal method. The second part of the review presents the main applications of magnetite-silica core/shell nanostructures. Magnetite-silica core/shell nanostructures have promising biomedical applications in magnetic resonance imaging (MRI) as a contrast agent, hyperthermia, drug delivery systems, and selective cancer therapy but also in developing magnetic micro devices.
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Bychkova AV, Kostanova EA, Sadykova EZ, Biryukova MI, Muradova AG, Sharapaev AI, Degtyarev EN, Kovarski AL. Nonspecific interaction between plasminogen and modified magnetic iron oxide nanoparticles. Prep Biochem Biotechnol 2021; 52:800-808. [PMID: 34751636 DOI: 10.1080/10826068.2021.1998110] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
The magnetic particles modified with silicon dioxide (SiO2) and amino groups (-NH2), as well as the magnetic particles modified with human serum albumin (HSA) were synthesized using the approaches we developed before and characterized by physico-chemical methods in this study. Plasminogen was chosen as a model protein since plasminogen plays a major role in the fibrinolytic system and plasminogen level correlates with different pathologies and conditions. For the first time it has been carried out qualitative and quantitative assessment of plasminogen nonspecific binding (noncovalent adsorption) by the particles in buffer and plasma solutions. The fibrinolytic activity of plasminogen on the surface of the particles has been measured by the aid of commercially available kits and appeared to be 28-30% of its initial value. Plasminogen desorption from the surface of particles was studied in phosphate buffer with NaCl and ε-aminocaproic acid. Despite nonspecific plasminogen binding is an undesirable process, the data obtained is valuable for further modification of particles for high-specific proteins extraction from biological fluids or transport of plasminogen by the particles. The perspectives of particles modified with SiO2 and -NH2, and particles modified with HSA for isolation of protein analytes and their quantitative assessment thereafter have been discussed.
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Affiliation(s)
- Anna V Bychkova
- Emanuel Institute of Biochemical Physics of Russian Academy of Sciences, Moscow, Russia
| | - Elizaveta A Kostanova
- Emanuel Institute of Biochemical Physics of Russian Academy of Sciences, Moscow, Russia
| | - Eleonora Z Sadykova
- Emanuel Institute of Biochemical Physics of Russian Academy of Sciences, Moscow, Russia
| | - Marina I Biryukova
- Emanuel Institute of Biochemical Physics of Russian Academy of Sciences, Moscow, Russia
| | - Aytan G Muradova
- D. Mendeleev University of Chemical Technology of Russia, Moscow, Russia
| | | | - Evgeniy N Degtyarev
- Emanuel Institute of Biochemical Physics of Russian Academy of Sciences, Moscow, Russia.,N.N. Semenov Federal Research Center for Chemical Physics, Russian Academy of Sciences, Moscow, Russia
| | - Alexander L Kovarski
- Emanuel Institute of Biochemical Physics of Russian Academy of Sciences, Moscow, Russia
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35
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Pre-concentration of organophosphorus pesticides in aqueous environments and food extracts by modified magnetic graphene oxide synthesized from sugar beet bagasse waste. FOOD ANAL METHOD 2021. [DOI: 10.1007/s12161-021-02143-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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36
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Karimkhah F, Elhamifar D, Shaker M. Ag 2CO 3 containing magnetic nanocomposite as a powerful and recoverable catalyst for Knoevenagel condensation. Sci Rep 2021; 11:18736. [PMID: 34548589 PMCID: PMC8455631 DOI: 10.1038/s41598-021-98287-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2021] [Accepted: 08/30/2021] [Indexed: 02/08/2023] Open
Abstract
In this paper, the synthesis, characterization and catalytic application of a novel magnetic silica-supported Ag2CO3 (MS/Ag2CO3) with core-shell structure are developed. The MS/Ag2CO3 nanocomposite was prepared through chemical modification of magnetic MS nanoparticles with AgNO3 under alkaline conditions. The structure, chemical composition and magnetic properties of MS/Ag2CO3 were investigated by using VSM, PXRD, FT-IR, EDX and SEM techniques. The MS/Ag2CO3 nanocomposite was used as an effective catalyst for the Knoevenagel condensation under solvent-free conditions at 60 °C in an ultrasonic bath. The recovery and leaching tests were performed to study the nature of the MS/Ag2CO3 catalyst under applied conditions.
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Affiliation(s)
- Fatemeh Karimkhah
- Department of Chemistry, Yasouj University, 75918-74831, Yasouj, Iran
| | - Dawood Elhamifar
- Department of Chemistry, Yasouj University, 75918-74831, Yasouj, Iran.
| | - Masoumeh Shaker
- Department of Chemistry, Yasouj University, 75918-74831, Yasouj, Iran
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Elmobarak WF, Almomani F. Functionalization of silica-coated magnetic nanoparticles as powerful demulsifier to recover oil from oil-in-water emulsion. CHEMOSPHERE 2021; 279:130360. [PMID: 33862358 DOI: 10.1016/j.chemosphere.2021.130360] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/29/2020] [Revised: 03/02/2021] [Accepted: 03/20/2021] [Indexed: 06/12/2023]
Abstract
This study presents an innovative approach for the preparation of Fe3O4 nanoparticles covered with SiO2 shell (denoted as Fe-Si-MNP), which were used to recover oil recovery from oil-in-water emulsion (O/W-emul). The Fe-Si-MNP were prepared with differing silica layer thicknesses (5 nm [Fe-Si-1], 8 nm [Fe-Si-2], 10 nm [Fe-Si-3], and 15 nm [Fe-Si-4]) and tested for the percentage of oil separation (%Soil) under different dosages (DMNP), oil concentration (Doil), surfactant dosages (Dsur), and pH. The Fe-Si-MNP exhibited excellent %Soil, reliable stability, and high magnetization values ranging between 46.1 and 80.2 emu/g. adding a 5 nm silica layer on the surface of the Fe-Si-MNP (i.e., Fe-Si-1) protected them from oxidation conditions, extended their service life, and achieved a %Soil of ∼96.3%. The %Soil slightly decreased to ∼92% with an alkaline pH or when the thickness of the silica layer increased to ≥10 nm. The %Soil was 90.5%, 89.5%, and 87.5% for Fe-Si-2, Fe-Si-3, and Fe-Si-4, respectively. Increasing the water salinity from 0.1 to 0.5 M slightly improved the %Soil for the tests carried out with a Doil of 100 mg/L to 93.3%, 90.3%, and 86.3% for Fe-Si-2, Fe-Si-3, and FeSi-4, respectively. The highest %Soil achieved with Fe- Si-1 Fe-Si-2 and Fe-Si-3 was >95%, 95% and 92%, respectively. The Fe-Si-MNP exhibited a high recyclability for 9 cycles with the lowest %Soil ∼80%. The results suggest that the structure and properties of the Fe-Si-MNP can be manipulated to achieve a high oil recovery, easy separation, and extended service life.
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Affiliation(s)
| | - Fares Almomani
- Department of Chemical Engineering, Qatar University, P. O. Box 2713, Doha, Qatar.
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38
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Haghighi M, Rezaei M, Sariaslani P, Moradi S, Shahlaei M. Sensitive electrochemical sensor for lamotrigine based on modified carbon paste electrode. MONATSHEFTE FUR CHEMIE 2021. [DOI: 10.1007/s00706-021-02811-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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39
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Synthesis of Fe3O4-PVP nanocomposite functionalized with sulfonic group as an effective catalyst for one-pot synthesis of xanthene derivatives. RESEARCH ON CHEMICAL INTERMEDIATES 2021. [DOI: 10.1007/s11164-021-04542-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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40
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Tian Y, Li X, Cai R, Yang K, Gao Z, Yuan Y, Yue T, Wang Z. Aptamer modified magnetic nanoparticles coupled with fluorescent quantum dots for efficient separation and detection of Alicyclobacillus acidoterrestris in fruit juices. Food Control 2021. [DOI: 10.1016/j.foodcont.2021.108060] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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41
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Guo X, Zhu M, Yuan P, Liu T, Tian R, Bai Y, Zhang Y, Chen X. The facile formation of hierarchical mesoporous silica nanocarriers for tumor-selective multimodal theranostics. Biomater Sci 2021; 9:5237-5246. [PMID: 34223579 DOI: 10.1039/d1bm00564b] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
The combination of therapeutic and diagnostic functions in a single platform has aroused great interest due to the more optimal synergistic effects that can be obtained as compared to any single theranostic approach alone. However, current nanotheranostics are normally formed via complicated construction steps involving the pre-synthesis of each component and further conjugation via chemical bonds, which may cause low integration efficiency and limit production and applications. Herein, a tumor-targeting and tumor-responsive all-in-one nanoplatform based on mesoporous silica nanocarriers (MSNs) was fabricated via a facile approach utilizing efficient and nondestructive physical interactions for long-wavelength fluorescence imaging-guided synergistic chemo-catalytic-photothermal tumor therapy. The MSNs were endowed with these multimodal theranostics via a simple hydrothermal method after coordinating with Fe2+ and glutathione (GSH) to introduce ferroferric oxide and carbon dots in situ. The former acts as a photothermal agent and catalytic agent to generate local heat under 808 nm irradiation and also when toxic hydroxyl radicals (˙OH) are in contact with abundant hydrogen peroxide in cancer cells, while the latter participates in fluorescence imaging. After loading with paclitaxel (PTX), polyester and folic-acid-conjugated cyclodextrin were employed to serve as an esterase-sensitive gatekeeper controlling PTX release from the MSN pores and as a tumor-targeting agent for accurate therapy, respectively. As expected, the nanoplatform was efficiently taken up by tumor cells over healthy cells, and then, synergetic chemo-catalytic-photothermal therapy was performed, resulting in 5-fold greater apoptosis of tumor cells as compared to healthy cells under 808 nm irradiation. Moreover, in vivo data from tumor-bearing mouse models showed that tumors were significantly inhibited, and the survival rates of these mice increased to greater than 80% after 5 weeks of treatment with our nanoplatform. These therapeutic processes could be directly tracked via fluorescence imaging enabled by carbon dots and, therefore, our nanoplatform provides a promising theranostics approach for tumor treatment.
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Affiliation(s)
- Xiaoyan Guo
- Department of Chemical Engineering, Shaanxi Key Laboratory of Energy Chemical Process Intensification, Institute of Polymer Science in Chemical Engineering, School of Chemical Engineering and Technology, Xi'an Jiaotong University, Xi'an, 710049, P. R. China. and Xi'an Jiaotong University Shenzhen Research School, High-Tech Zone, Shenzhen, 518057, P. R. China
| | - Man Zhu
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, Xi'an, 710061, P.R. China.
| | - Pingyun Yuan
- Department of Chemical Engineering, Shaanxi Key Laboratory of Energy Chemical Process Intensification, Institute of Polymer Science in Chemical Engineering, School of Chemical Engineering and Technology, Xi'an Jiaotong University, Xi'an, 710049, P. R. China.
| | - Tao Liu
- Department of Chemical Engineering, Shaanxi Key Laboratory of Energy Chemical Process Intensification, Institute of Polymer Science in Chemical Engineering, School of Chemical Engineering and Technology, Xi'an Jiaotong University, Xi'an, 710049, P. R. China.
| | - Ran Tian
- Department of Chemical Engineering, Shaanxi Key Laboratory of Energy Chemical Process Intensification, Institute of Polymer Science in Chemical Engineering, School of Chemical Engineering and Technology, Xi'an Jiaotong University, Xi'an, 710049, P. R. China.
| | - Yongkang Bai
- Department of Chemical Engineering, Shaanxi Key Laboratory of Energy Chemical Process Intensification, Institute of Polymer Science in Chemical Engineering, School of Chemical Engineering and Technology, Xi'an Jiaotong University, Xi'an, 710049, P. R. China.
| | - Yanmin Zhang
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, Xi'an, 710061, P.R. China.
| | - Xin Chen
- Department of Chemical Engineering, Shaanxi Key Laboratory of Energy Chemical Process Intensification, Institute of Polymer Science in Chemical Engineering, School of Chemical Engineering and Technology, Xi'an Jiaotong University, Xi'an, 710049, P. R. China.
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Camacho-Fernández JC, González-Quijano GK, Séverac C, Dague E, Gigoux V, Santoyo-Salazar J, Martinez-Rivas A. Nanobiomechanical behavior of Fe 3O 4@SiO 2and Fe 3O 4@SiO 2-NH 2nanoparticles over HeLa cells interfaces. NANOTECHNOLOGY 2021; 32:385702. [PMID: 34111853 DOI: 10.1088/1361-6528/ac0a13] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/25/2021] [Accepted: 06/09/2021] [Indexed: 06/12/2023]
Abstract
In this work, we studied the impact of magnetic nanoparticles (MNPs) interactions with HeLa cells when they are exposed to high frequency alternating magnetic field (AMF). Specifically, we measured the nanobiomechanical properties of cell interfaces by using atomic force microscopy (AFM). Magnetite (Fe3O4) MNPs were synthesized by coprecipitation and encapsulated with silica (SiO2): Fe3O4@SiO2and functionalized with amino groups (-NH2): Fe3O4@SiO2-NH2, by sonochemical processing. HeLa cells were incubated with or without MNPs, and then exposed to AMF at 37 °C. A biomechanical analysis was then performed through AFM, providing the Young's modulus and stiffness of the cells. The statistical analysis (p < 0.001) showed that AMF application or MNPs interaction modified the biomechanical behavior of the cell interfaces. Interestingly, the most significant difference was found for HeLa cells incubated with Fe3O4@SiO2-NH2and exposed to AMF, showing that the local heat of these MNPs modified their elasticity and stiffness.
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Affiliation(s)
- Juan Carlos Camacho-Fernández
- ENCB, Instituto Politécnico Nacional (IPN), Av. Wilfrido Massieu, Unidad Adolfo López Mateos, 07738, Mexico City, Mexico
| | | | | | - Etienne Dague
- LAAS-CNRS, Université de Toulouse, CNRS, Toulouse, France
| | - Véronique Gigoux
- LPCNO, ERL 1226 INSERM, Université de Toulouse, CNRS, INSA, UPS, 135 avenue de Rangueil, F-31077 Toulouse, France
| | - Jaime Santoyo-Salazar
- Departamento de Física, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Av. IPN 2508, Zacatenco, 07360, Mexico City, Mexico
| | - Adrian Martinez-Rivas
- ENCB, Instituto Politécnico Nacional (IPN), Av. Wilfrido Massieu, Unidad Adolfo López Mateos, 07738, Mexico City, Mexico
- CIC, Instituto Politécnico Nacional (IPN), Av. Juan de Dios Bátiz, Nueva Industrial Vallejo, 07738, Mexico City, Mexico
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Efremova MV, Spasova M, Heidelmann M, Grebennikov IS, Li ZA, Garanina AS, Tcareva IO, Savchenko AG, Farle M, Klyachko NL, Majouga AG, Wiedwald U. Room temperature synthesized solid solution AuFe nanoparticles and their transformation into Au/Fe Janus nanocrystals. NANOSCALE 2021; 13:10402-10413. [PMID: 34096958 DOI: 10.1039/d1nr00383f] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Solid solution AuFe nanoparticles were synthesized for the first time under ambient conditions by an adapted method previously established for the Fe3O4-Au core-shell morphology. These AuFe particles preserved the fcc structure of Au incorporated with paramagnetic Fe atoms. The metastable AuFe can be segregated by transformation into Janus Au/Fe particles with bcc Fe and fcc Au upon annealing. The ferromagnetic Fe was epitaxially grown on low index fcc Au planes. This preparation route delivers new perspective materials for magnetoplasmonics and biomedical applications and suggests the reconsideration of existing protocols for magnetite-gold core-shell synthesis.
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Affiliation(s)
- Maria V Efremova
- Department of Chemistry, Lomonosov Moscow State University, Moscow, 119991, Russian Federation
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Pryazhnikov DV, Kubrakova IV. Surface-Modified Magnetic Nanoscale Materials: Preparation and Study of Their Structure, Composition, and Properties. JOURNAL OF ANALYTICAL CHEMISTRY 2021. [DOI: 10.1134/s1061934821060095] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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45
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In vitro studies of Pluronic F127 coated magnetic silica nanocarriers for drug delivery system targeting liver cancer. Eur Polym J 2021. [DOI: 10.1016/j.eurpolymj.2021.110504] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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Mourdikoudis S, Kostopoulou A, LaGrow AP. Magnetic Nanoparticle Composites: Synergistic Effects and Applications. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2021; 8:2004951. [PMID: 34194936 PMCID: PMC8224446 DOI: 10.1002/advs.202004951] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Indexed: 05/17/2023]
Abstract
Composite materials are made from two or more constituent materials with distinct physical or chemical properties that, when combined, produce a material with characteristics which are at least to some degree different from its individual components. Nanocomposite materials are composed of different materials of which at least one has nanoscale dimensions. Common types of nanocomposites consist of a combination of two different elements, with a nanoparticle that is linked to, or surrounded by, another organic or inorganic material, for example in a core-shell or heterostructure configuration. A general family of nanoparticle composites concerns the coating of a nanoscale material by a polymer, SiO2 or carbon. Other materials, such as graphene or graphene oxide (GO), are used as supports forming composites when nanoscale materials are deposited onto them. In this Review we focus on magnetic nanocomposites, describing their synthetic methods, physical properties and applications. Several types of nanocomposites are presented, according to their composition, morphology or surface functionalization. Their applications are largely due to the synergistic effects that appear thanks to the co-existence of two different materials and to their interface, resulting in properties often better than those of their single-phase components. Applications discussed concern magnetically separable catalysts, water treatment, diagnostics-sensing and biomedicine.
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Affiliation(s)
- Stefanos Mourdikoudis
- Biophysics GroupDepartment of Physics and AstronomyUniversity College LondonLondonWC1E 6BTUK
- UCL Healthcare Biomagnetic and Nanomaterials Laboratories21 Albemarle StreetLondonW1S 4BSUK
| | - Athanasia Kostopoulou
- Institute of Electronic Structure and Laser (IESL)Foundation for Research and Technology‐Hellas (FORTH)100 Nikolaou PlastiraHeraklionCrete70013Greece
| | - Alec P. LaGrow
- International Iberian Nanotechnology LaboratoryBraga4715‐330Portugal
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Development of an Electrochemical Sensor Based on Nanocomposite of Fe3O4@SiO2 and Multiwalled Carbon Nanotubes for Determination of Tetracycline in Real Samples. ELECTROCHEM 2021. [DOI: 10.3390/electrochem2020018] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
In this work, an electrochemical sensor (GCE/MWCNT/Fe3O4@SiO2) based on a composite of multiwalled carbon nanotubes (MWCNT) and an Fe3O4@SiO2 (MMN) nanocomposite on a glassy carbon electrode (GCE) was developed for the detection of tetracycline (TC). The composite formed promoted an increased electrochemical signal and the stability of the sensor, combining its individual characteristics such as high electrical conductivity and large surface area. The composite material was characterized by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), Mössbauer spectroscopy, and scanning electron microscope (SEM). The adsorptive stripping differential pulse voltammetry (AdSDPV) promoted better performance for the electrochemical sensor and greater sensitivity for TC detection. Under optimized conditions, the currents increased linearly with TC concentrations from 4.0 to 36 µmol L−1 (0.997) and from 40 to 64 µmol L−1 (0.994) with detection and quantification limits of 1.67 µmol L−1 and 4.0 µmol L−1, respectively. The sensor was applied in the analysis of milk and river water samples, obtaining recovery values ranging from 91–117%.
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Stimuli responsive and receptor targeted iron oxide based nanoplatforms for multimodal therapy and imaging of cancer: Conjugation chemistry and alternative therapeutic strategies. J Control Release 2021; 333:188-245. [DOI: 10.1016/j.jconrel.2021.03.021] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2020] [Revised: 03/17/2021] [Accepted: 03/17/2021] [Indexed: 12/18/2022]
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Azadi G, Kazemi F, Firouzeh E. Visible‐Light‐Driven Photocatalytic Suzuki–Miyaura Coupling Reaction Using Novel Retrievable Magnetic Photocatalyst. ChemistrySelect 2021. [DOI: 10.1002/slct.202000978] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Gouhar Azadi
- Department of Chemistry Institute for Advanced Studies in Basic Sciences (IASBS) Gava Zang, PO Box 45195- 1159, Zanjan Iran
- Process Engineering, Ilam Petrochemical Complex Ilam Iran
| | - Foad Kazemi
- Department of Chemistry Institute for Advanced Studies in Basic Sciences (IASBS) Gava Zang, PO Box 45195- 1159, Zanjan Iran
- Center for Climate and Global Warming (CCGW) Institute for Advanced Studies in Basic Sciences (IASBS), Gava Zang Zanjan 45137-66731 Iran
| | - Ebrahim Firouzeh
- Department of Chemistry Institute for Advanced Studies in Basic Sciences (IASBS) Gava Zang, PO Box 45195- 1159, Zanjan Iran
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Fulaz S, Scachetti C, Tasic L. Enzyme-functionalised, core/shell magnetic nanoparticles for selective pH-triggered sucrose capture. RSC Adv 2021; 11:4701-4712. [PMID: 35424388 PMCID: PMC8694497 DOI: 10.1039/d0ra09259b] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2020] [Accepted: 01/20/2021] [Indexed: 12/21/2022] Open
Abstract
Diabetes is a chronic metabolic disease which leads to high glucose levels in the blood, with severe consequences for human health. Due to the worldwide appeal for the reduction in calorie intake, this study presents the development of a nanomaterial able to capture sucrose selectively, thus providing a tool to remove naturally occurring sucrose from food, such as fruit juices, producing low-calorie juices for consumption. Magnetite nanoparticles (Fe3O4 NPs) coated with an inert material (SiO2) and functionalised with the enzyme invertase were designed to remove sucrose from solutions. Fe3O4 NPs were synthesised using the co-precipitation method, whereas the coating with a silica shell was done by the Stöber method. Its physicochemical characteristics were determined, with excellent stability over time. On the other hand, the invertase enzyme was extracted from dry Baker's yeast, purified and immobilised on the surface of the silica-coated Fe3O4 NPs. pH-triggered sucrose capture occurred at pH 3.0 once invertase with protonated catalytic residues was able just to bind with sucrose in a highly selective way. After a short, 1 min interaction, approximately 13.5 mmol L-1 of sucrose was captured per gram of nanomaterial and removed with the use of an external permanent magnet. The complex sucrose/nanomaterial was washed, and the released sucrose was put into buffered solution (pH = 4.8), where it underwent hydrolysis to yield inverted sugar. On the other side, sucrose-free nanomaterial was reused with no loss of enzymatic capability to capture sucrose at pH = 3.0 and maintained the invertase activity at pH 4.8 in ten consecutive rounds of re-use. As sucrose was recovered in the form of inverted sugar, not just low sugar beverage could be obtained, but also a high valued market product. Thus, the developed technology allows for the commercialisation of low-calorie food, offering healthier options to consumers and helping to fight diabetes and obesity.
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Affiliation(s)
- Stephanie Fulaz
- Laboratory of Chemical Biology, Institute of Chemistry, University of Campinas Campinas 13083-970 Brazil
| | - Carolina Scachetti
- Laboratory of Chemical Biology, Institute of Chemistry, University of Campinas Campinas 13083-970 Brazil
| | - Ljubica Tasic
- Laboratory of Chemical Biology, Institute of Chemistry, University of Campinas Campinas 13083-970 Brazil
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