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Toghan A, Fawzy A, Alqarni N, Eldesoky AM, Alduaij OK, Farag AA. Effective Treatment Methodology for Environmental Safeguard Catalytic Degradation of Fluconazole by Permanganate Ions in Different Acidic Environments: Kinetics, Mechanistics, RSM, and DFT Modeling. ACS OMEGA 2024; 9:10190-10200. [PMID: 38463285 PMCID: PMC10918786 DOI: 10.1021/acsomega.3c07074] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Revised: 01/30/2024] [Accepted: 02/07/2024] [Indexed: 03/12/2024]
Abstract
In this paper, the degradation of fluconazole drug (Flz) was explored kinetically utilizing permanganate ion [MnO4-] as an oxidant in different acidic environments, namely sulfuric and perchloric acids at various temperatures. Stoichiometry of the reactions between Flz and [MnO4-] in both acidic environments was attained to be 1.2 ± 0.07 mol. The kinetics of the degradation reactions in both cases were the same, being unit order regarding [MnO4-], fewer than unit orders in [Flz], and fractional second orders in acid concentrations. The rate of oxidative degradation of fluconazole in H2SO4 was higher than that in HClO4 at the same investigational circumstances. The addition of small amounts of Mg2+ and Zn2+ enhanced the degradation rates. The activation quantities were evaluated and debated. The gained oxidation products were characterized using spot tests. A mechanistic approach for the fluconazole degradation was suggested. Finally, the rate law expressions were derived which were agreed with the acquired outcomes. The rates of degradation for various [Flz] were mathematically modeled using the response surface methodology (RSM). The RSM model's conclusions and the experimental findings are in agreement. The oxidative degradation mechanism of Flz using density functional theory (DFT) was performed. The fluconazole drug degrades in acidic settings, protecting both the environment and human health, according to a method that is easy to use, powerful, inexpensive, practical, affordable, and safe.
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Affiliation(s)
- Arafat Toghan
- Chemistry Department, College of Science, Imam Mohammad Ibn Saud Islamic University (IMSIU), Riyadh 11623, Saudi Arabia
- Chemistry Department, Faculty of Science, South Valley University, Qena 83523, Egypt
| | - Ahmed Fawzy
- Chemistry Department, Faculty of Science, Assiut University, Assiut 71516, Egypt
| | - Nada Alqarni
- Department of Chemistry, College of Sciences and Arts in Balgarn, University of Bisha, Bisha 61922, Saudi Arabia
| | - Ahmed M Eldesoky
- Department of Chemistry, University College in Al-Qunfudhah, Umm Al-Qura University, Makkah 21912, Saudi Arabia
| | - Omar K Alduaij
- Chemistry Department, College of Science, Imam Mohammad Ibn Saud Islamic University (IMSIU), Riyadh 11623, Saudi Arabia
| | - Ahmed A Farag
- Egyptian Petroleum Research Institute (EPRI), Nasr City 11727, Cairo, Egypt
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Saeed AM, Taha AG, Dardeer HM, Aly MF. One-pot synthesis of novel chitosan-salicylaldehyde polymer composites for ammonia sensing. Sci Rep 2024; 14:239. [PMID: 38168141 PMCID: PMC10761969 DOI: 10.1038/s41598-023-50243-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Accepted: 12/17/2023] [Indexed: 01/05/2024] Open
Abstract
Chitosan (Chs)-salicylaldehyde (Sal) polymer derivatives were formed via the reaction of Chs-Sal with zinc oxide nanoparticles (ZnO NPs) and beta-cyclodextrin (β-CD). These polymers were synthesized through inclusion with β-CD and doping with ZnO NPs to give pseudopolyrotaxane and Chs-Sal/ZnO NPs composite, respectively, for low-temperature detection and sensing of NH3 vapors as great significance in environmental control and human health. Additionally, the polymer (Chs-Sal/β-CD/ZnO NPs) was prepared via the insertion of generated composite (Chs-Sal/ZnO NPs) through β-cyclodextrin ring. The structural and morphological characterizations of the synthesized derivatives were confirmed by utilizing FTIR, XRD and, SEM, respectively. Also, the optical properties and thermal gravimetric analysis (TGA) of the synthesized polymers were explored. The obtained results confirmed that using β-CD or ZnO NPs for modification of polymer (Chs-Sal) dramatically enhanced thermal stability and optical features of the synthesized polymers. Investigations on the NH3-sensing properties of Chs-Sal/β-CD/ZnO NPs composite were carried out at concentrations down to 10 ppm and good response and recovery times (650 s and 350 s, respectively) at room temperature (RT) and indicated that modification by β-CD and doping with ZnO NPs effectively improves the NH3-sensing response of Chs-Sal from 712 to 6192 using Chs-Sal/β-CD/ZnO NPs, respectively, with low LOD and LOQ of 0.12 and 0.4 ppb, respectively.
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Affiliation(s)
- Ahmed Muhammed Saeed
- Department of Chemistry, Faculty of Science, Al-Azhar University, Cairo, 11884, Egypt.
| | - Ahmed Gaber Taha
- Department of Chemistry, Faculty of Science, South Valley University, Qena, 83523, Egypt
| | - Hemat Mohamed Dardeer
- Department of Chemistry, Faculty of Science, South Valley University, Qena, 83523, Egypt
| | - Moustafa Fawzy Aly
- Department of Chemistry, Faculty of Science, South Valley University, Qena, 83523, Egypt.
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Dardeer HM, Abdel-Hakim M, Aly KI, Sayed MM. Modification of conducting arylidene copolymers by formation of inclusion complexes: synthesis, characterization, and applications as highly corrosion inhibitors for mild steel. BMC Chem 2023; 17:77. [PMID: 37454143 PMCID: PMC10349478 DOI: 10.1186/s13065-023-00992-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2022] [Accepted: 06/30/2023] [Indexed: 07/18/2023] Open
Abstract
Modifying the metal surface is one solution to the industry's growing corrosion problem. Thus, via threading approach and insertion of copolymers (CoP5-7) containing polyarylidenes through the internal cavity beta-cyclodextrin β-CD, novel pseudopolyrotaxanes copolymers (PC5-7) are developed, resulting in mild steel corrosion inhibition. Inhibitors of corrosion based on β-CD molecules adsorb strongly to metal surfaces because of their many polar groups, adsorption centers, many linkages of side chains, and benzene rings. The corrosion inhibition efficiencies IE % statistics have been revised via the Tafel polarization method and Spectroscopy based on the electrochemical impedance (EIS), with PC7 achieving the highest 99.93% in 1.0 M H2SO4; they are mixed-type inhibitors. The chemical composition of the resulting PCs is determined with Fourier transform infrared spectroscopy (FTIR), Scanning electron microscopy (SEM) is utilized to examine the morphological structure of the produced polymers, and X-ray diffraction is employed to identify crystallinity. Encapsulating CoP5-7 with β-CD changes the morphological structures and increases the generated PCs' crystallinity. The thermal stability of PCs is studied, indicating the presence of these CoPs within the β-CD cavities enhances their thermal stability. This research will be a stepping stone for developing high-efficiency anti-corrosion coatings and various industrial applications.
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Affiliation(s)
- Hemat M Dardeer
- Chemistry Department, Faculty of Science, South Valley University, Qena, 83523, Egypt
| | - Mohamed Abdel-Hakim
- Chemistry Department, Faculty of Science, Al-Azhar University, Assiut, 71524, Egypt.
| | - Kamal I Aly
- Polymer Research Laboratory, Chemistry Department, Faculty of Science, Assiut University, Assiut, 71516, Egypt.
| | - Marwa M Sayed
- Chemistry Department, Faculty of Science, The New Valley University, El-Kharja, 72511, Egypt
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Dardeer HM, Toghan A, Zaki MEA, Elamary RB. Design, Synthesis and Evaluation of Novel Antimicrobial Polymers Based on the Inclusion of Polyethylene Glycol/TiO 2 Nanocomposites in Cyclodextrin as Drug Carriers for Sulfaguanidine. Polymers (Basel) 2022; 14:polym14020227. [PMID: 35054634 PMCID: PMC8780372 DOI: 10.3390/polym14020227] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2021] [Revised: 12/24/2021] [Accepted: 12/29/2021] [Indexed: 12/12/2022] Open
Abstract
Polymers and their composites have recently attracted attention in both pharmaceutical and biomedical applications. Polyethylene glycol (PEG) is a versatile polymer extensively used in medicine. Herein, three novel PEG-based polymers that are pseudopolyrotaxane (PEG/α-CD) (1), titania–nanocomposite (PEG/TiO2NPs) (2), and pseudopolyrotaxane–titania–nanocomposite (PEG/α-CD/TiO2NPs) (3), were synthesized and characterized. The chemical structure, surface morphology, and optical properties of the newly materials were examined by FT-IR, 1H-NMR, SEM, and UV–Vis., respectively. The prepared polymers were used as drug carriers of sulfaguanidine as PEG/α-CD/Drug (4), PEG/TiO2NPs/Drug (5), and PEG/α-CD/TiO2NPs/Drug (6). The influence of these drug-carrying formulations on the physical and chemical characteristics of sulfaguanidine including pharmacokinetic response, solubility, and tissue penetration was explored. Evaluation of the antibacterial and antibiofilm effect of sulfaguanidine was tested before and after loading onto the prepared polymers against some Gram-negative and positive bacteria (E. coli, Pseudomonas aeruginosa, and Staphylococcus aureus (MRSA)), as well. The results of this work turned out to be very promising as they confirmed that loading sulfaguanidine to the newly designed polymers not only showed superior antibacterial and antibiofilm efficacy compared to the pure drug, but also modified the properties of the sulfaguanidine drug itself.
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Affiliation(s)
- Hemat M. Dardeer
- Chemistry Department, Faculty of Science, South Valley University, Qena 83523, Egypt;
| | - Arafat Toghan
- Chemistry Department, Faculty of Science, South Valley University, Qena 83523, Egypt;
- Chemistry Department, College of Science, Imam Mohammad Ibn Saud Islamic University (IMSIU), Riyadh 11623, Saudi Arabia;
- Correspondence: or
| | - Magdi E. A. Zaki
- Chemistry Department, College of Science, Imam Mohammad Ibn Saud Islamic University (IMSIU), Riyadh 11623, Saudi Arabia;
| | - Rokaia B. Elamary
- Botany and Microbiology Department, Faculty of Science, South Valley University, Qena 83523, Egypt;
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Novel crystalline and thermally stable chitosan-chromone based polymers: Synthesis and characterization. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2021.130625] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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