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Aldosari BN, Abd El-Aal M, Abo Zeid EF, Faris TM, Aboelela A, Abdellatif AAH, Tawfeek HM. Synthesis and characterization of magnetic Ag-Fe 3O 4@polymer hybrid nanocomposite systems with promising antibacterial application. Drug Dev Ind Pharm 2023; 49:723-733. [PMID: 37906615 DOI: 10.1080/03639045.2023.2277812] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2023] [Accepted: 10/26/2023] [Indexed: 11/02/2023]
Abstract
INTRODUCTION Bacterial infections caused by different strains of bacteria still one of the most important disorders affecting humans worldwide. Polymers nanocomposite systems could be considered as an alternative to conventional antibiotics to eradicate bacterial infections. SIGNIFICANCE In an attempt to enhance the antibacterial performance of silver and iron oxide nanoparticles, decrease their aggregation and toxicity, a polymeric hybrid nanocomposite system combining both nanoparticles is produced. METHODS Magnetic Ag-Fe3O4@polymer hybrid nanocomposites prepared using different polymers, namely polyethylene glycol 4000, ethyl cellulose, and chitosan were synthesized via wet impregnation and ball-milling techniques. The produced nanocomposites were tested for their physical properties and antibacterial activities. RESULTS XRD, FT-IR, VSM, and TEM results confirmed the successful preparation of hybrid nanocomposites. Hybrid nanocomposites have average crystallite sizes in the following order Ag-Fe3O4@CS (8.9 nm) < Ag-Fe3O4@EC (9.0 nm) < Ag-Fe3O4@PEG4000 (9.4 nm) and active surface area of this trend Ag-Fe3O4@CS (130.4 m2g-1) > Ag-Fe3O4@EC (128.9 m2g-1) > Ag-Fe3O4@PEG4000 (123.4 m2g-1). In addition, they have a saturation magnetization in this order: Ag-Fe3O4@PEG4000 (44.82 emu/g) > Ag-Fe3O4@EC (40.14 emu/g) > Ag-Fe3O4@CS (22.90 emu/g). Hybrid nanocomposites have a pronounced antibacterial action against Bacillus cereus, Escherichia coli, Pseudomonas aeruginosa, and Staphylococcus intermedius compared to iron oxide nanoparticles and positive antibacterial drug. In addition, both Ag-Fe3O4@EC and Ag-Fe3O4@CS have a lower MIC values compared to Ag-Fe3O4@PEG and positive control. CONCLUSION Magnetic Ag-Fe3O4 hybrid nanocomposites could be promising antibacterial nanomaterials and could pave the way for the development of new materials with even more unique properties and applications.
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Affiliation(s)
- Basmah N Aldosari
- Department of Pharmaceutics, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - Mohamed Abd El-Aal
- Chemistry Department, Faculty of Science, Assiut University, Assiut, Egypt
| | - Essam F Abo Zeid
- Physics Department, Faculty of Science, Assiut University, Assiut, Egypt
- Biophysics Department, Faculty of Oral and Dental, Sphinx University, Assiut, Egypt
| | - Tarek M Faris
- Department of Pharmaceutical Sciences, College of Pharmacy, Princess Nourah Bint Abdulrahman University, Riyadh, Saudi Arabia
| | - Ashraf Aboelela
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Sphinx University, Assiut, Egypt
| | - Ahmed A H Abdellatif
- Department of Pharmaceutics, College of Pharmacy, Qassim University, Saudi Arabia
- Department of Pharmaceutics and Pharmaceutical Technology, Faculty of Pharmacy, Al-Azhar University, Assiut, Egypt
| | - Hesham M Tawfeek
- Industrial Pharmacy Department, Faculty of Pharmacy, Assiut University, Assiut, Egypt
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Yang S, Wang F, Zhang Z, Liu Z, Zhang J, Jiang K. Effect of Ball-Milling Process on Microwave Absorption Behaviors of Flaky Carbonyl Iron Powders. MATERIALS (BASEL, SWITZERLAND) 2023; 16:4397. [PMID: 37374580 DOI: 10.3390/ma16124397] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2023] [Revised: 05/31/2023] [Accepted: 06/12/2023] [Indexed: 06/29/2023]
Abstract
Electromagnetic (EM) wave absorption performance is greatly affected by the microscopic morphology of the absorbing material particles. In this study, a facile and efficient ball-milling method was applied to increase the aspect ratio of particles and prepare flaky carbonyl iron powders (F-CIPs), one of the most readily commercially available absorbing materials. The effect of ball-milling time and rotation speed on the absorption behaviors of the F-CIPs was investigated. The microstructures and compositions of the F-CIPs were determined using scanning electron microscopy (SEM) and X-ray diffraction (XRD). The EM parameters were measured using a vector network analyzer (VNA) in the frequency range of 2-18 GHz. The results indicated that the ball-milled flaky CIPs exhibited a better absorption ability than the raw spherical CIPs. Among all the samples, the sample milled at 200 r/min for 12 h and the sample milled at 300 r/min for 8 h showed remarkable EM parameters. The ball-milling sample with 50 wt.% F-CIPs had a minimum reflection loss peak of -14.04 dB at a thickness of 2 mm and a maximum bandwidth (RL < -7 dB) of 8.43 GHz at a thickness of 2.5 mm, a result that conformed with the transmission line theory. Hence, the ball-milled flaky CIPs were considered to be beneficial for microwave absorption.
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Affiliation(s)
- Siyuan Yang
- Fujian Key Laboratory of Special Energy Manufacturing, Huaqiao University, Xiamen 361021, China
- Xiamen Key Laboratory of Digital Vision Measurement, Huaqiao University, Xiamen 361021, China
| | - Fei Wang
- Fujian Key Laboratory of Special Energy Manufacturing, Huaqiao University, Xiamen 361021, China
- Xiamen Key Laboratory of Digital Vision Measurement, Huaqiao University, Xiamen 361021, China
| | - Zhe Zhang
- Fujian Key Laboratory of Special Energy Manufacturing, Huaqiao University, Xiamen 361021, China
- Xiamen Key Laboratory of Digital Vision Measurement, Huaqiao University, Xiamen 361021, China
| | - Zhiming Liu
- School of Information Engineering, Nanchang University, Nanchang 330031, China
| | - Jiliang Zhang
- Fujian Key Laboratory of Special Energy Manufacturing, Huaqiao University, Xiamen 361021, China
- Xiamen Key Laboratory of Digital Vision Measurement, Huaqiao University, Xiamen 361021, China
| | - Kaiyong Jiang
- Fujian Key Laboratory of Special Energy Manufacturing, Huaqiao University, Xiamen 361021, China
- Xiamen Key Laboratory of Digital Vision Measurement, Huaqiao University, Xiamen 361021, China
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Elmahaishi MF, Azis RS, Ismail I, Mustaffa MS, Abbas Z, Matori KA, Muhammad FD, Saat NK, Nazlan R, Ibrahim IR, Abdullah NH, Mokhtar N. Structural, Electromagnetic and Microwave Properties of Magnetite Extracted from Mill Scale Waste via Conventional Ball Milling and Mechanical Alloying Techniques. MATERIALS (BASEL, SWITZERLAND) 2021; 14:7075. [PMID: 34832475 PMCID: PMC8621786 DOI: 10.3390/ma14227075] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Revised: 11/07/2021] [Accepted: 11/09/2021] [Indexed: 12/12/2022]
Abstract
This study presents the utilization of mill scale waste, which has attracted much attention due to its high content of magnetite (Fe3O4). This work focuses on the extraction of Fe3O4 from mill scale waste via magnetic separation, and ball milling was used to fabricate a microwave absorber. The extracted magnetic powder was ground-milled using two different techniques: (i) a conventional milling technique (CM) and (ii) mechanical alloying (MM) process. The Fe3O4/CM samples were prepared by a conventional milling process using steel pot ball milling, while the Fe3O4/MM samples were prepared using a high-energy ball milling (HEBM) method. The effect of milling time on the structural, phase composition, and electromagnetic properties were examined using X-ray diffraction (XRD) and a vector network analyzer (VNA). XRD confirmed the formation of magnetite after both the magnetic separation and milling processes. The results revealed that Fe3O4 exhibited excellent microwave absorption properties because of the synergistic characteristics of its dielectric and magnetic loss. The results showed that the Fe3O4/CM particle powder had a greater absorption power (reflection loss: <-10 dB) with 99.9% absorption, a minimum reflection loss of -30.83 dB, and an effective bandwidth of 2.30 GHz for 2 mm thick samples. The results revealed the Fe3O4/MM powders had higher absorption properties, including a higher RL of -20.59 dB and a broader bandwidth of 2.43 GHz at a matching thickness of only 1 mm. The higher microwave absorption performance was attributed to the better impedance matching property caused by the porous microstructure. Furthermore, the magnetite, Fe3O4 showed superior microwave absorption characteristics because of the lower value of permittivity, which resulted in better impedance matching. This study presents a low-cost approach method by reutilizing mill scale waste to fabricate a high purity crystalline Fe3O4 with the best potential for designing magnetic nano-sized based microwave absorbers.
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Affiliation(s)
- Madiha Fathi Elmahaishi
- Department of Physics, Faculty of Science, University Putra Malaysia (UPM), Serdang 43400, Selangor, Malaysia; (M.F.E.); (Z.A.); (K.A.M.); (F.D.M.); (N.K.S.); (N.M.)
| | - Raba’ah Syahidah Azis
- Department of Physics, Faculty of Science, University Putra Malaysia (UPM), Serdang 43400, Selangor, Malaysia; (M.F.E.); (Z.A.); (K.A.M.); (F.D.M.); (N.K.S.); (N.M.)
- Materials Synthesis and Characterization Laboratory (MSCL), Institute of Nanoscience and Nanotechnology (ION2), Universiti Putra Malaysia (UPM), Serdang 43400, Selangor, Malaysia; (I.I.); (M.S.M.)
| | - Ismayadi Ismail
- Materials Synthesis and Characterization Laboratory (MSCL), Institute of Nanoscience and Nanotechnology (ION2), Universiti Putra Malaysia (UPM), Serdang 43400, Selangor, Malaysia; (I.I.); (M.S.M.)
| | - Muhammad Syazwan Mustaffa
- Materials Synthesis and Characterization Laboratory (MSCL), Institute of Nanoscience and Nanotechnology (ION2), Universiti Putra Malaysia (UPM), Serdang 43400, Selangor, Malaysia; (I.I.); (M.S.M.)
| | - Zulkifly Abbas
- Department of Physics, Faculty of Science, University Putra Malaysia (UPM), Serdang 43400, Selangor, Malaysia; (M.F.E.); (Z.A.); (K.A.M.); (F.D.M.); (N.K.S.); (N.M.)
| | - Khamirul Amin Matori
- Department of Physics, Faculty of Science, University Putra Malaysia (UPM), Serdang 43400, Selangor, Malaysia; (M.F.E.); (Z.A.); (K.A.M.); (F.D.M.); (N.K.S.); (N.M.)
- Materials Synthesis and Characterization Laboratory (MSCL), Institute of Nanoscience and Nanotechnology (ION2), Universiti Putra Malaysia (UPM), Serdang 43400, Selangor, Malaysia; (I.I.); (M.S.M.)
| | - Farah Diana Muhammad
- Department of Physics, Faculty of Science, University Putra Malaysia (UPM), Serdang 43400, Selangor, Malaysia; (M.F.E.); (Z.A.); (K.A.M.); (F.D.M.); (N.K.S.); (N.M.)
| | - Nor Kamilah Saat
- Department of Physics, Faculty of Science, University Putra Malaysia (UPM), Serdang 43400, Selangor, Malaysia; (M.F.E.); (Z.A.); (K.A.M.); (F.D.M.); (N.K.S.); (N.M.)
| | - Rodziah Nazlan
- Faculty of Industrial Sciences, Technology Universiti Malaysia Pahang (UMP), Lebuhraya Tun Razak, Gambang 26300, Pahang, Malaysia;
| | - Idza Riati Ibrahim
- Centre For Pre-University Studies, Universiti Malaysia Sarawak (UNIMAS), Kota Samarahan 94300, Sarawak, Malaysia;
| | - Nor Hapishah Abdullah
- Functional Devices Laboratory (FDL), Institute of Nanoscience and Nanotechnology (ION2), Universiti Putra Malaysia (UPM), Serdang 43400, Selangor, Malaysia;
| | - Nurhidayaty Mokhtar
- Department of Physics, Faculty of Science, University Putra Malaysia (UPM), Serdang 43400, Selangor, Malaysia; (M.F.E.); (Z.A.); (K.A.M.); (F.D.M.); (N.K.S.); (N.M.)
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