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Firoozi Z, Khalili D, Sardarian AR. Fe 3O 4@SiO 2 core/shell functionalized by gallic acid: a novel, robust, and water-compatible heterogeneous magnetic nanocatalyst for environmentally friendly synthesis of acridine-1,8-diones. RSC Adv 2024; 14:10842-10857. [PMID: 38577428 PMCID: PMC10990003 DOI: 10.1039/d4ra00629a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2024] [Accepted: 03/21/2024] [Indexed: 04/06/2024] Open
Abstract
In this study, we conveniently prepared a novel robust heterogeneous magnetic nanocatalyst using a Fe3O4@SiO2 core/shell stabilized by gallic acid. The catalyst was completely characterized by various physicochemical techniques, including infrared spectroscopy (FT-IR), X-ray diffraction (XRD), dynamic light scattering (DLS), transmission electron microscopy (TEM), field emission scanning electron microscopy (FE-SEM), thermogravimetric analysis (TGA), potentiometric titration, energy dispersive X-ray microanalysis (EDX), vibrating sample magnetometer (VSM), zeta potential analysis, and BET. The potential ability of the newly developed sulfonated nanocatalyst was then exploited in the multicomponent synthesis of acridine-1,8-dione derivatives by considering the green chemistry matrix and under mild conditions. Various aldehydes and amines were smoothly reacted with dimedone, affording the desired products in good to excellent yields. The introduction of sulfonic groups using gallic acid allowed the development of a water-compatible and highly recyclable catalytic system for reactions in an aqueous environment. The prepared catalyst can be readily magnetically separated and reused eight times without significant loss of activity. High synthetic efficiency, using a recyclable and eco-sustainable catalyst under mild conditions, and easy product isolation are salient features of this catalytic system, which makes this protocol compatible with the demands of green chemistry.
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Affiliation(s)
- Zahra Firoozi
- Department of Chemistry, College of Sciences, Shiraz University Shiraz 71467-13565 Iran
| | - Dariush Khalili
- Department of Chemistry, College of Sciences, Shiraz University Shiraz 71467-13565 Iran
| | - Ali Reza Sardarian
- Department of Chemistry, College of Sciences, Shiraz University Shiraz 71467-13565 Iran
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Azadi S, Azizipour E, Amani AM, Vaez A, Zareshahrabadi Z, Abbaspour A, Firuzyar T, Dortaj H, Kamyab H, Chelliapan S, Mosleh-Shirazi S. Antifungal activity of Fe 3O 4@SiO 2/Schiff-base/Cu(II) magnetic nanoparticles against pathogenic Candida species. Sci Rep 2024; 14:5855. [PMID: 38467729 PMCID: PMC10928175 DOI: 10.1038/s41598-024-56512-5] [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: 11/08/2023] [Accepted: 03/07/2024] [Indexed: 03/13/2024] Open
Abstract
The antifungal efficacy and cytotoxicity of a novel nano-antifungal agent, the Fe3O4@SiO2/Schiff-base complex of Cu(II) magnetic nanoparticles (MNPs), have been assessed for targeting drug-resistant Candida species. Due to the rising issue of fungal infections, especially candidiasis, and resistance to traditional antifungals, there is an urgent need for new therapeutic strategies. Utilizing Schiff-base ligands known for their broad-spectrum antimicrobial activity, the Fe3O4@SiO2/Schiff-base/Cu(II) MNPs have been synthesized. The Fe3O4@SiO2/Schiff-base/Cu(II) MNPs was characterized by Fourier Transform-Infrared Spectroscopy (FT-IR), X-ray Diffraction (XRD), Transmission Electron Microscopy (TEM), Scanning Electron Microscopy (SEM), Dynamic Light Scattering (DLS), Energy-dispersive X-ray (EDX), Vibrating Sample Magnetometer (VSM), and Thermogravimetric analysis (TGA), demonstrating successful synthesis. The antifungal potential was evaluated against six Candida species (C. dubliniensis, C. krusei, C. tropicalis, C. parapsilosis, C. glabrata, and C. albicans) using the broth microdilution method. The results indicated strong antifungal activity in the range of 8-64 μg/mL with the lowest MIC (8 μg/mL) observed against C. parapsilosis. The result showed the MIC of 32 μg/mL against C. albicans as the most common infection source. The antifungal mechanism is likely due to the disruption of the fungal cell wall and membrane, along with increased reactive oxygen species (ROS) generation leading to cell death. The MTT (3-[4,5-dimethylthiazol-2-yl]-2,5-diphenyltetrazolium bromide) assay for cytotoxicity on mouse L929 fibroblastic cells suggested low toxicity and even enhanced cell proliferation at certain concentrations. This study demonstrates the promise of Fe3O4@SiO2/Schiff-base/Cu(II) MNPs as a potent antifungal agent with potential applications in the treatment of life-threatening fungal infections, healthcare-associated infections, and beyond.
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Affiliation(s)
- Sedigheh Azadi
- Department of Medical Nanotechnology, School of Advanced Medical Sciences and Technologies, Shiraz University of Medical Sciences, Shiraz, Iran.
| | - Esmat Azizipour
- Department of Medical Nanotechnology, School of Advanced Medical Sciences and Technologies, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Ali Mohammad Amani
- Department of Medical Nanotechnology, School of Advanced Medical Sciences and Technologies, Shiraz University of Medical Sciences, Shiraz, Iran.
| | - Ahmad Vaez
- Department of Tissue Engineering and Applied Cell Sciences, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Zahra Zareshahrabadi
- Basic Sciences in Infectious Diseases Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Alireza Abbaspour
- School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Tahereh Firuzyar
- Department of Nuclear Medicine, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Hengameh Dortaj
- Department of Anatomy and Cell Biology, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Hesam Kamyab
- Faculty of Architecture and Urbanism, UTE University, Calle Rumipamba S/N and Bourgeois, Quito, Ecuador
- Department of Biomaterials, Saveetha Dental College and Hospital, Saveetha Institute of Medical and Technical Sciences, Chennai, 600077, India
- Process Systems Engineering Centre (PROSPECT), Faculty of Chemical and Energy Engineering, Faculty of Engineering, Universiti Teknologi Malaysia, Skudai, Johor, Malaysia
| | - Shreeshivadasan Chelliapan
- Department of Engineering and Technology, Razak Faculty of Technology and Informatics, Universiti Teknologi Malaysia, Jalan Sultan Yahya Petra, 54100, Kuala Lumpur, Malaysia.
| | - Sareh Mosleh-Shirazi
- Department of Materials Science and Engineering, Shiraz University of Technology, Shiraz, Iran
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Hasan K, Shehadi IA, Joseph RG, Patole SP, Elgamouz A. β-Cyclodextrin-Functionalized Fe 3O 4-Supported Pd-Nanocatalyst for the Reduction of Nitroarenes in Water at Mild Conditions. ACS OMEGA 2023; 8:23901-23912. [PMID: 37426276 PMCID: PMC10324381 DOI: 10.1021/acsomega.3c02332] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Accepted: 06/07/2023] [Indexed: 07/11/2023]
Abstract
In this study, a novel heterogeneous catalyst (Fe3O4@β-CD@Pd) has been developed by the deposition of palladium nanoparticles on the β-cyclodextrin-functionalized surface of magnetic Fe3O4. The catalyst was prepared by a simple chemical co-precipitation method and characterized extensively by using Fourier transform infrared (FTIR) spectroscopy, thermogravimetric analysis (TGA), X-ray diffraction (XRD), field-emission scanning electron microscopy (FE-SEM), energy dispersive X-ray spectroscopy (EDX), transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS), and inductively coupled plasma-optical emission spectrometry (ICP-OES) analyses. Herein, the applicability of the prepared material was evaluated for the catalytic reduction of environmentally toxic nitroarenes to the corresponding anilines. The catalyst Fe3O4@β-CD@Pd showed excellent efficiency for the reduction of nitroarenes in water under mild conditions. A low catalyst loading of 0.3 mol % Pd is found to be efficient for reducing nitroarenes in excellent to good (99-95%) yields along with high TON values (up to 330). Nevertheless, the catalyst was recycled and reused up to the 5th cycle of reduction of nitroarene without any loss of significant catalytic activity.
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Affiliation(s)
- Kamrul Hasan
- Department of Chemistry,
Pure and Applied Chemistry Group, College of Sciences, University of Sharjah, P.O. Box 27272, Sharjah 27272, United Arab
Emirates
| | - Ihsan A. Shehadi
- Department of Chemistry,
Pure and Applied Chemistry Group, College of Sciences, University of Sharjah, P.O. Box 27272, Sharjah 27272, United Arab
Emirates
| | - Reshma G. Joseph
- Department of Chemistry,
Pure and Applied Chemistry Group, College of Sciences, University of Sharjah, P.O. Box 27272, Sharjah 27272, United Arab
Emirates
| | - Shashikant P. Patole
- Department of Physics, Khalifa
University of Science and Technology, P.O. Box 127788, Abu Dhabi 127788, United Arab Emirates
| | - Abdelaziz Elgamouz
- Department of Chemistry,
Pure and Applied Chemistry Group, College of Sciences, University of Sharjah, P.O. Box 27272, Sharjah 27272, United Arab
Emirates
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Efficient and heterogeneous transfer hydrogenation of nitroarenes using immobilized palladium nanoparticles on silica–starch substrate (PNP-SSS). MONATSHEFTE FUR CHEMIE 2022. [DOI: 10.1007/s00706-022-02932-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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