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Hafez NS, Amer WA, Okba EA, Sakr MAS, Alganzory HH, Ebeid EZM. Novel ultra-sensitive and highly selective cyanine sensors based on solvent-free microwave synthesis for the detection of trace hypochlorite ions in drinking water. Spectrochim Acta A Mol Biomol Spectrosc 2023; 303:123116. [PMID: 37459665 DOI: 10.1016/j.saa.2023.123116] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/11/2023] [Revised: 06/18/2023] [Accepted: 07/06/2023] [Indexed: 09/20/2023]
Abstract
The adoption of chlorine in drinking water disinfection with the determination of residual chlorine in the form of hypochlorite ion (ClO-) is in widespread demand. Several sensors including colorimetric, fluorometric, and electrochemical methods are currently in use, but detection limits and ease of application remain a challenge. In this work, two new cyanine derivatives-based ClO- sensors, that were prepared by solvent-free microwave synthesis, are reported. The two sensors are highly sensitive and selective to ClO-, exhibiting a noticeable color change visible to the naked eye. Additionally, the sensors can detect ClO- without interference from other potential water pollutants, with low detection limits of 7.43 ppb and 0.917 ppb based on absorption performance. When using fluorometric methods, the sensors' detection limits are pushed down to 0.025 ppb and 0.598 ppb for sensors I and II, respectively. The sensors can be loaded with paper strips for field and domestic detection of ClO- in tap water treatment installations. Using the quartz crystal microbalance (QCM) technique, these sensors showed strong detection sensitivity to ClO-, with detection limits of 0.256 ppm and 0.09 ppm for sensors I and II, respectively. Quantum chemical studies using density functional theory (DFT) calculations, natural bond orbital (NBO) analysis, molecular electrostatic potential (MESP), and time-dependent density functional theory (TD-DFT) supported the findings. The sensing mechanism is rationalized in terms of radical cation formation upon ClO- oxidation of cyanine sensors I and II.
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Affiliation(s)
- Nermeen S Hafez
- Chemistry Department, Faculty of Science, Tanta University, Tanta 31527, Egypt.
| | - Wael A Amer
- Chemistry Department, Faculty of Science, Tanta University, Tanta 31527, Egypt; Department of Chemistry, College of Science, University of Bahrain, Sakhir 32038, Bahrain
| | - Ehab A Okba
- Chemistry Department, Faculty of Science, Tanta University, Tanta 31527, Egypt
| | - Mahmoud A S Sakr
- Center of Basic Science, Misr University for Science and Technology, 6(TH) of October City, Egypt
| | | | - El-Zeiny M Ebeid
- Chemistry Department, Faculty of Science, Tanta University, Tanta 31527, Egypt; Center of Basic Science, Misr University for Science and Technology, 6(TH) of October City, Egypt
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Aboelfetoh EF, Zain Elabedien ME, Ebeid EZM. In situ anchoring of iron and zinc oxides nanoparticles onto rice husk cellulose for efficient wastewater remediation. Int J Biol Macromol 2023; 233:123562. [PMID: 36750169 DOI: 10.1016/j.ijbiomac.2023.123562] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2022] [Revised: 01/19/2023] [Accepted: 02/01/2023] [Indexed: 02/09/2023]
Abstract
The development of effective and economical technologies for the treatment of contaminated wastewater has been of great significance to researchers. Therefore, an equal molar ratio of iron and zinc oxides nanoparticles was hydrothermally immobilized on the cellulose fibers of rice husk. Using XRD, SEM, FTIR, EDX, TEM, VSM, BET, and TGA/DTG, the structure, and characteristics of Cel/α-Fe2O3-ZnO, a ternary nanocomposite, were affirmed. The nanocomposite displayed a mesoporous structure with a substantial surface area. The efficiency of nanocomposite as a new adsorbent has been studied for the extraction of reactive black 5 (RB5), which is a diazo-anionic dye from simulated wastewater. The medium's pH was the dominant factor of RB5 adsorption, and the optimal removal effectiveness was acquired at pH 2. The adsorption values of RB5 correspond to second-order kinetics. They also matched Langmuir with a maximum capacity of 99.30 mg g-1. For real industrial wastewater, Cel/α-Fe2O3-ZnO has successfully reduced a number of major pollutants, including ammonia (92.73 %), color (92.88 %), COD (91.53 %), BOD5 (84.97 %), TSS (96.27 %), TP (52.17 %) and TN (47.23 %). These results illustrate the effective application of the ternary nanocomposite in wastewater treatment.
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Affiliation(s)
- Eman F Aboelfetoh
- Chemistry Department, Faculty of Science, Tanta University, Tanta 31527, Egypt.
| | - Mohamed E Zain Elabedien
- Chemistry Department, Faculty of Science, Tanta University, Tanta 31527, Egypt; Reference Lab of Holding Company for Water and Wastewater, Cairo 11631, Egypt
| | - El-Zeiny M Ebeid
- Chemistry Department, Faculty of Science, Tanta University, Tanta 31527, Egypt
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3
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Bayoumy RM, Abdel-Halim ST, El-Daly SA, Saad MA, Awad MK, Ebeid EZM. Structural, DFT calculations, photophysical and photochemical characteristics of 1-((E)-2-phenylethenyl)-2-(4-(2-((E)-2-phenylethenyl) phenoxy) butoxy) benzene (PPPBB). CAN J CHEM 2022. [DOI: 10.1139/cjc-2022-0164] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
X- ray single crystal structure, spectroscopic and photophysical parameters of the titled compound were studied. The titled compound shows thermal stability prior to melting at 126.17 °C with ΔH value of 109.991 Jg<sup>-1</sup>. Photophysical parameters include singlet electronic absorption, molar absorption coefficient, oscillator strength and dipole moment of electronic transition, fluorescence spectra, excited state lifetime and fluorescence quantum yield for PPPBB in different solvents. PPPBB displays a little change in maximum absorption and emission spectra with solvent polarity, indicating a slight change in dipole moment of dye molecules upon excitation. The dipole moments (Δμ ) difference between the excited and ground state was obtained from Lippert-Mataga method. Ground and electronic excited states geometric optimization was performed using density functional theory (DFT) and time-dependent density functional theory (TD-DFT), complemented with spectral findings. A good agreement between theoretical data and experimental observations was found. The net photochemical quantum yield (ϕ<sub>c</sub>) of PPPBB dye was calculated in various solvents.
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Affiliation(s)
| | - Shakir T. Abdel-Halim
- Tanta University Faculty of Science, 505841, Department of Chemistry, Tanta, Gharbia Governorate, Egypt
| | - Samy A. El-Daly
- Tanta University, 68781, Department of Chemistry, Tanta, Egypt
| | - Mohamed A. Saad
- Misr University for Science and Technology, 110121, Center of Basics Science, 6th of October City, Giza, Egypt,
| | - Mohamed K. Awad
- Tanta University Faculty of Science, 505841, Department of Chemistry, Tanta, Gharbia Governorate, Egypt
| | - El-Zeiny M. Ebeid
- Tanta University Faculty of Science, 505841, Department of Chemistry, Tanta, Gharbia Governorate, Egypt
- Misr University for Science and Technology, 110121, Center of Basic Science, 6th of October City, Giza, Egypt
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Salama E, Ghanim M, Hassan HS, Amer WA, Ebeid EZM, El-Shazly AH, Ossman M, Elkady MF. Novel aspartic-based bio-MOF adsorbent for effective anionic dye decontamination from polluted water. RSC Adv 2022; 12:18363-18372. [PMID: 35799940 PMCID: PMC9215166 DOI: 10.1039/d2ra02333d] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2022] [Accepted: 06/14/2022] [Indexed: 11/21/2022] Open
Abstract
In this study, a cost-effective powdered Zn l-aspartic acid bio-metal organic framework (Zn l-Asp bio-MOF) was reported as an efficient adsorbent for Direct Red 81 (DR-81) as an anionic organic dye. The prepared bio-MOF was characterized using Fourier-transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), scanning electron microscopy (SEM), field emission transmission electron microscopy (FETEM), surface area analysis (BET), and thermal gravimetrical analysis (TGA). The resulting bio-MOF has a large surface area (180.43 m2 g-1) and large mesopore volume (0.144 cm3 g-1), as well as good chemical inertness and mechanical stability. The optimum dosage from the Zn l-Asp bio-MOF was 1.0 g L-1 at pH = 7 for 95.3% adsorption of 10 ppm DR-81 after 45 min. Thermodynamic analysis results demonstrated that the decontamination processes were done with spontaneous, thermodynamically, and exothermic nature onto the fabricated bio-MOF. Kinetic parameters were well-fitted with pseudo-second-order kinetics, and the adsorption process was described by the Freundlich isotherm. The adsorption data proved that Zn l-Asp bio-MOF is an effective adsorbent for DR-81 from aqueous solutions with high stability and recycling ability for eight cycles, as well as the easy regeneration of the sorbent.
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Affiliation(s)
- Eslam Salama
- Environment and Natural Materials Research Institute (ENMRI), City of Scientific Research and Technological Applications (SRTA-City) New Borg El-Arab City Alexandria 21934 Egypt
| | - Mohamed Ghanim
- Chemistry Department, Faculty of Science, Tanta University Tanta 31527 Egypt
- Chemical and Petrochemical Engineering Department, Egypt-Japan University of Science and Technology (E-JUST) New Borg El-Arab City Alexandria 21934 Egypt
| | - Hassan Shokry Hassan
- Electronic Materials Research Department, Advanced Technology and New Materials Research Institute (ATNMRI), City of Scientific Research and Technological Applications (SRTA-City) New Borg El-Arab City Alexandria 21934 Egypt
- Environmental Engineering Department, Egypt-Japan University of Science and Technology New Borg El-Arab City Alexandria 21934 Egypt
| | - Wael A Amer
- Chemistry Department, Faculty of Science, Tanta University Tanta 31527 Egypt
- Department of Chemistry, College of Science, University of Bahrain Sakhir 32038 Bahrain
| | - El-Zeiny M Ebeid
- Chemistry Department, Faculty of Science, Tanta University Tanta 31527 Egypt
| | - Ahmed H El-Shazly
- Chemical and Petrochemical Engineering Department, Egypt-Japan University of Science and Technology (E-JUST) New Borg El-Arab City Alexandria 21934 Egypt
| | - Mona Ossman
- Environment and Natural Materials Research Institute (ENMRI), City of Scientific Research and Technological Applications (SRTA-City) New Borg El-Arab City Alexandria 21934 Egypt
| | - Marwa F Elkady
- Chemical and Petrochemical Engineering Department, Egypt-Japan University of Science and Technology (E-JUST) New Borg El-Arab City Alexandria 21934 Egypt
- Fabrication Technology Research Department, Advanced Technology and New Materials Research Institute (ATNMRI), City of Scientific Research and Technological Applications (SRTA-City) New Borg El-Arab City Alexandria 21934 Egypt
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AboAlhasan AA, Sakr MA, Abdelbar MF, El-Sheshtawy HS, El-Daly SA, Ebeid EZM, Hussien Al-Ashwal R, Al-Hazmy SM. Enhanced Energy Transfer from Diolefinic Laser Dyes to Meso-tetrakis (4-sulfonatophenyl) Porphyrin Immobilized on Silver Nanoparticles: DFT, TD-DFT and Spectroscopic Studies. Journal of Saudi Chemical Society 2022. [DOI: 10.1016/j.jscs.2022.101491] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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6
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Sakr MEM, Kana MTHA, Elwahy AHM, Abdelwahed MS, El-Daly SA, Ebeid EZM. Spectroscopic Behavior and Photophysical Parameters of 2-(Acetoxymethyl)-6-(1,2,4-triazinylaminodihydroquinazolinyl)tetrahydropyran Derivative in Different Solid Hosts. J Fluoresc 2022; 32:1509-1516. [PMID: 35522344 PMCID: PMC9270284 DOI: 10.1007/s10895-022-02960-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2021] [Accepted: 04/20/2022] [Indexed: 11/24/2022]
Abstract
Optical and photophysical properties of 6-substituted-1,2,4-Triazine fluorescent derivative dye doped in silicate based sol-gel, homopolymer of methyl methacrylate (PMMA), and copolymer (MMA/diethylene glycol dimethacrylate) (DEGDMA) were investigated. The pores of different hosts and caging of the dye were found to effect on the parameters such as molar absorptivity, cross sections of singlet-singlet electronic absorption and emission spectra, excited state lifetime, quantum yield of fluorescence. The dipole moment of electronic transition, the length of attenuation and oscillator strength of electronic transition from So → S1 have been calculated. The dye was pumped with different powers using 3rd harmonic Nd: YAG laser of 355 nm and pulse duration 8 ns, with repetition rate 10 Hz. Good photo stability for dye was attained. After 55,000 pumping pulses of (10 mJ/pulse), the photo-stabilities were decreased to 53%, 48%, and 45% of the initial ASE of dye in sol gel, PMMA, and Co-polymer respectively. The dye in sol-gel matrix showed improvement of photo stability compared with those in organic polymeric matrices.
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Affiliation(s)
- Mahmoud E. M. Sakr
- Laser Sciences and Interactions Department, National Institute of Laser-Enhanced Sciences (NILES), Cairo University, Giza, Egypt
| | - Maram T. H. Abou Kana
- Laser Sciences and Interactions Department, National Institute of Laser-Enhanced Sciences (NILES), Cairo University, Giza, Egypt
| | | | | | - Samy A. El-Daly
- Chemistry Department, Faculty of Science, Tanta University, Tanta, Egypt
| | - El-Zeiny M. Ebeid
- Chemistry Department, Faculty of Science, Tanta University, Tanta, Egypt ,Misr University for Science and Technology (MUST), 6th of October City, Egypt
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Aboelfetoh EF, Aboubaraka AE, Ebeid EZM. Binary coagulation system (graphene oxide/chitosan) for polluted surface water treatment. J Environ Manage 2021; 288:112481. [PMID: 33827021 DOI: 10.1016/j.jenvman.2021.112481] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/23/2020] [Revised: 02/15/2021] [Accepted: 03/23/2021] [Indexed: 06/12/2023]
Abstract
In this study, chitosan (CS) is used as a natural coagulant aid alongside graphene oxide (GO) to remove turbidity and numerous pollutants from raw and artificially contaminated surface water. The coagulation capability of the system (GO/CS) was assessed with respect to a water sample's turbidity, pH, coagulant dose, settling velocity, and temperature. The presence of CS enhanced the coagulation capacity of GO at varied pH levels and no GO residue was detected in the water after the treatment. The proposed system achieved high turbidity removal efficiency (≥98.3%) for all turbidity levels. A mixture of GO (8 mg/L) and CS (2 mg/L) was ideal to remove algae (99.5%) and bacteria (≥95.0%). Furthermore, it demonstrated a high coagulation capacity to remove dyes, direct brown-2 (DB-2), methylene blue (MB), and Pb(II) ions from artificially contaminated surface water. Interestingly, the sludge exhibited an extraordinary adsorption capacity for DB-2, MB, and Pb(II) ions. The adsorption process followed the pseudo-second-order kinetic model, and was consistent with the Langmuir model, with an adsorption capacity of up to 667.8, 400.7, and 459.1 mg/g for DB-2, MB, and Pb(II) ions, respectively. Therefore, the presented binary coagulation system is of great potential economic value for the treatment of raw surface water and wastewater.
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Affiliation(s)
- Eman F Aboelfetoh
- Chemistry Department, Faculty of Science, Tanta University, Tanta, 31527, Egypt.
| | - Abdelmeguid E Aboubaraka
- Chemistry Department, Faculty of Science, Tanta University, Tanta, 31527, Egypt; Central Lab of El-Gharbia Water and Wastewater Company, Tanta, Egypt
| | - El-Zeiny M Ebeid
- Chemistry Department, Faculty of Science, Tanta University, Tanta, 31527, Egypt; Misr University for Science and Technology (MUST), 6th of October City, Egypt
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Sakr MA, Mohamed AA, Abou Kana MT, Elwahy AH, El-Daly SA, Ebeid EZM. Synthesis, characterization, DFT and TD-DFT study of novel bis(5,6-diphenyl-1,2,4-triazines). J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2020.129345] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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9
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Elkady M, Salama E, Amer WA, Ebeid EZM, Ayad MM, Shokry H. Novel eco-friendly electrospun nanomagnetic zinc oxide hybridized PVA/alginate/chitosan nanofibers for enhanced phenol decontamination. Environ Sci Pollut Res Int 2020; 27:43077-43092. [PMID: 32729039 DOI: 10.1007/s11356-020-10247-8] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/26/2020] [Accepted: 07/21/2020] [Indexed: 06/11/2023]
Abstract
In the current study, poly(vinyl alcohol)/alginate/chitosan (PVA/Alg/CS) composite nanofiber was immobilized with six different ratios of nanomagnetic zinc oxide (M-ZnO) (0 wt%, 0.2 wt%, 0.4 wt%, 0.6 wt%, 0.8 wt%, and 1 wt%) via the electrospinning technique. The various fabricated composite (M-6) nanofibers were characterized using Fourier transform infrared (FTIR), X-ray diffractometer (XRD), vibrating sample magnetometer (VSM), scanning electron microscope (SEM), atomic force microscope (AFM), thermogravimetric analysis (TGA), mechanical testing machine, and optical contact angle measurement. The fabricated composite nanofibers were applied for the adsorption of phenol from aqueous solutions. The 1.0 wt% M-ZnO/PVA/Alg/CS composite nanofibers were selected as the best phenol adsorbent with removal percentage of 84.22%. The influence of different processing parameter such as contact time, composite nanofiber dosage, pH, initial pollutant concentration, and temperature were examined. Increasing nanofiber dosage and the solution temperature was found to enhance the phenol adsorption onto the prepared nanocomposites. The maximum percentage of phenol removal was achieved at 84.22% after 90 min. Meanwhile, the maximum monolayer adsorption capacity (at pH = 5.0) was estimated to be 10.03 mg g-1 at 25 °C. Kinetic, isotherm, and thermodynamic studies were designated to proof the endothermic, spontaneous, and thermodynamically nature of the phenol adsorption process. These outcomes indicate the effectiveness of the fabricated M-ZnO/PVA/Alg/CS nanofibers as adsorbent materials for phenol from aqueous solutions.
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Affiliation(s)
- Marwa Elkady
- Fabrication Technology Research Department, Advanced Technology and New Materials Research Institute (ATNMRI), City of Scientific Research and Technological Applications (SRTA-City), New Borg El-Arab City, Alexandria, 21934, Egypt
- Chemical and Petrochemical Engineering Department, Egypt-Japan University of Science and Technology (E-JUST), New Borg El-Arab City, Alexandria, 21934, Egypt
| | - Eslam Salama
- Chemistry Department, Faculty of Science, Tanta University, Tanta, 31527, Egypt
- Environment and Natural Materials Research Institute (ENMRI), City of Scientific Research and Technological Applications, New Borg El-Arab City, Alexandria, 21934, Egypt
| | - Wael A Amer
- Chemistry Department, Faculty of Science, Tanta University, Tanta, 31527, Egypt
| | - El-Zeiny M Ebeid
- Chemistry Department, Faculty of Science, Tanta University, Tanta, 31527, Egypt
| | - Mohamad M Ayad
- Chemistry Department, Faculty of Science, Tanta University, Tanta, 31527, Egypt
- Institute of Basic and Applied Sciences, Egypt-Japan University of Science and Technology, New Borg El-Arab City, Alexandria, 21934, Egypt
| | - Hassan Shokry
- Electronic Materials Research Department, Advanced Technology and New Materials Research Institute (ATNMRI), City of Scientific Research and Technological Applications (SRTA-City), New Borg El-Arab City, Alexandria, 21934, Egypt.
- Environmental Engineering Department, Egypt-Japan University of Science and Technology, New Borg El-Arab City, Alexandria, 21934, Egypt.
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Sakr MEM, Abou Kana MTH, Elwahy AHM, Kandel HM, Abdelwahed MS, El-Daly SA, Ebeid EZM. Optical, photo physical parameters and photo stability of 6-Substituted-1, 2, 4-Triazine mono glucosyl derivative to act as a laser dye in various solvents. Spectrochim Acta A Mol Biomol Spectrosc 2020; 232:118145. [PMID: 32066064 DOI: 10.1016/j.saa.2020.118145] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2019] [Revised: 01/30/2020] [Accepted: 02/09/2020] [Indexed: 06/10/2023]
Abstract
The optical properties of a visible absorption range6-Substituted-1, 2, 4-Triazine mono glucosyl fluorescent derivative dye, such as absorption spectra, emission spectra in different solvents, were experimentally investigated. As well, some important photo physical parameters such as extinction coefficient (ε), cross-sections of the absorption (σa) and the emission (σe), quantum yield (фf), fluorescence lifetime, oscillator strength (f), the dipole moment (μ), decay rate radiative constant (kr), energy yield of fluorescence (Ef) and the length of attenuation Λ (λ) were assessed. The ground-state (μg) and excited-state (μe) dipole moments by solvatochromic correlations method were reported. The dye amplified spontaneous emission (ASE) of 2 × 10-4M with different input pumping energies of a continuous wave blue diode laser (λ = 450 nm) was studied. Photostability of dye was observed that was decreased to 53% of its initial energy by pumping with 100 mW of diode laser after exposure to 120 min.
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Affiliation(s)
- Mahmoud E M Sakr
- Laser Sciences and Interactions Department, National Institute of Laser-Enhanced Sciences (NILES), Cairo University, Giza, Egypt.
| | - Maram T H Abou Kana
- Laser Sciences and Interactions Department, National Institute of Laser-Enhanced Sciences (NILES), Cairo University, Giza, Egypt.
| | - Ahmed H M Elwahy
- Chemistry Department, Faculty of Science, Cairo University, Egypt
| | - Hamed M Kandel
- Laser Sciences and Interactions Department, National Institute of Laser-Enhanced Sciences (NILES), Cairo University, Giza, Egypt
| | | | - Samy A El-Daly
- Chemistry Department, Faculty of Science, Tanta University, Tanta, Egypt
| | - El-Zeiny M Ebeid
- Chemistry Department, Faculty of Science, Tanta University, Tanta, Egypt; Misr University for Science and Technology (MUST), 6th of October City, Egypt
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Zidan AAA, El-Ashmawy NE, Khedr EG, Ebeid EZM, Salem ML, Mosalam EM. Loading of doxorubicin and thymoquinone with F2 gel nanofibers improves the antitumor activity and ameliorates doxorubicin-associated nephrotoxicity. Life Sci 2018; 207:461-470. [PMID: 29885348 DOI: 10.1016/j.lfs.2018.06.008] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2018] [Accepted: 06/05/2018] [Indexed: 02/07/2023]
Abstract
AIMS This study aimed to elucidate the benefits of nanoformulation of doxorubicin (DOX) and thymoquinone (TQ) loaded with nanofibers of poly-N-acetyl glucosamine (pGlcNAc), which is known as F2 gel, over their conventional free forms. Moreover, evaluate the role of TQ in improving chemotherapeutic effect and ameliorating nephrotoxicity of DOX. MAIN METHODS The drugs were loaded into F2 gel followed by measurement of physicochemical characterization. Next, MCF-7 and HEPG2 cells were treated with the prepared formulations and assessed for apoptosis alongside with cellular proliferation. Furthermore, we experimentally induced Heps liver carcinoma in mice and at the end of the treatment, mice were sacrificed and serum samples were used to assess nephrotoxicity markers; blood urea nitrogen (BUN) and creatinine. Additionally, renal tissue was used for determination of oxidative markers and antioxidant enzymes; whereas, tumor tissue was utilized to measure nuclear factor kappa B (NF-κB) and caspase 3. KEY FINDINGS Nanoformulation showed dramatic increase in apoptosis, caspase 3, and antioxidant enzymes; in contrast to, dramatic fall in cell viability, tumor volume, oxidative and nephrotoxicity markers, and NF-κB compared to corresponding free therapies. Combined therapy was superior in conserving the measured parameters compared to other treated groups. SIGNIFICANCE F2 gel loaded with DOX and TQ revealed enhanced antitumor activity with minimal toxicity. Moreover, using TQ as an adjuvant with DOX could augment its cytotoxicity and ameliorate nephrotoxicity.
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Affiliation(s)
- Abdel-Aziz A Zidan
- Zoology Department, Faculty of Science, Damanhour University, Egypt; Center of Excellence in cancer Research (CECR), Tanta University, Tanta, Egypt.
| | | | - Eman G Khedr
- Biochemistry Department, Faculty of Pharmacy, Tanta University, Egypt
| | - El-Zeiny M Ebeid
- Physical Chemistry Department, Faculty of Science, Tanta University, Egypt
| | - Mohamed L Salem
- Immunology and Biotechnology Unit, Zoology Department, Faculty of Science, Tanta University, Egypt
| | - Esraa M Mosalam
- Biochemistry Department, Faculty of Pharmacy, Menoufia University, Egypt
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12
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Azhar A, Zakaria MB, Ebeid EZM, Chikyow T, Bando Y, Alshehri AA, Alghamdi YG, Cai ZX, Kumar NA, Lin J, Kim H, Yamauchi Y. Synthesis of Hollow Co-Fe Prussian Blue Analogue Cubes by using Silica Spheres as a Sacrificial Template. ChemistryOpen 2018; 7:599-603. [PMID: 30094126 PMCID: PMC6080567 DOI: 10.1002/open.201800120] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2018] [Indexed: 11/11/2022] Open
Abstract
Herein, we report a novel method for the formation of hollow Prussian blue analogue (CoFe–PBA) nanocubes, using spherical silica particles as sacrificial templates. In the first step, silica cores are coated by a CoFe–PBA shell and then removed by etching with hydrofluoric acid (HF). The cubic shape of CoFe–PBA is well‐retained even after the removal of the silica cores, resulting in the formation of hollow CoFe–PBA cubes. The specific capacity of the hollow CoFe–PBA nanocubes electrodes is about two times higher than that of solid CoFe–PBA nanocubes as storage materials for sodium ions. Such an improvement in the electrochemical properties can be attributed to their hollow internal nanostructure. The hollow architecture can offer a larger interfacial area between the electrolyte and the electrode, leading to an improvement in the electrochemical activity. This strategy can be applied to develop PBAs with hollow interiors for a wide range of applications.
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Affiliation(s)
- Alowasheeir Azhar
- College of Chemistry and Molecular Engineering Qingdao University of Science and Technology Qingdao 266042 P. R. China.,International Research Center for Materials Nanoarchitechtonics, (WPI-MANA) National Institute for Materials Science (NIMS) 1-1 Namiki Tsukuba Ibaraki 305-0044 Japan.,Faculty of Science and Engineering Waseda University 3-4-1 OkuboShinjuku Tokyo 169-8555 Japan
| | - Mohamed B Zakaria
- College of Chemistry and Molecular Engineering Qingdao University of Science and Technology Qingdao 266042 P. R. China.,International Research Center for Materials Nanoarchitechtonics, (WPI-MANA) National Institute for Materials Science (NIMS) 1-1 Namiki Tsukuba Ibaraki 305-0044 Japan.,Department of Chemistry Faculty of Science Tanta University Tanta, Gharbeya 31527 Egypt
| | - El-Zeiny M Ebeid
- Department of Chemistry Faculty of Science Tanta University Tanta, Gharbeya 31527 Egypt
| | - Toyohiro Chikyow
- International Research Center for Materials Nanoarchitechtonics, (WPI-MANA) National Institute for Materials Science (NIMS) 1-1 Namiki Tsukuba Ibaraki 305-0044 Japan
| | - Yoshio Bando
- International Research Center for Materials Nanoarchitechtonics, (WPI-MANA) National Institute for Materials Science (NIMS) 1-1 Namiki Tsukuba Ibaraki 305-0044 Japan
| | | | - Yousef Gamaan Alghamdi
- Department of Chemistry King Abdulaziz University, P.O. Box. 80203 Jeddah 21589 Saudi Arabia
| | - Ze-Xing Cai
- International Research Center for Materials Nanoarchitechtonics, (WPI-MANA) National Institute for Materials Science (NIMS) 1-1 Namiki Tsukuba Ibaraki 305-0044 Japan
| | - Nanjundan Ashok Kumar
- School of Chemical Engineering and Australian Institute for, Bioengineering and Nanotechnology (AIBN) The University of Queensland Brisbane QLD 4072 Australia
| | - Jianjian Lin
- College of Chemistry and Molecular Engineering Qingdao University of Science and Technology Qingdao 266042 P. R. China
| | - Hansu Kim
- Department of Energy Engineering Hanyang University, Seongdong-gu Seoul 133-791 Republic of Korea
| | - Yusuke Yamauchi
- School of Chemical Engineering and Australian Institute for, Bioengineering and Nanotechnology (AIBN) The University of Queensland Brisbane QLD 4072 Australia.,Department of Plant & Environmental New Resources Kyung Hee University 1732 Deogyeong-daero, Giheung-gu, Yongin-si Gyeonggi-do 446-701 Republic of Korea
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13
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El-Ashmawy NE, Khedr EG, Ebeid EZM, Salem ML, Zidan AAA, Mosalam EM. Enhanced anticancer effect and reduced toxicity of doxorubicin in combination with thymoquinone released from poly-N-acetyl glucosamine nanomatrix in mice bearing solid Ehrlish carcinoma. Eur J Pharm Sci 2017; 109:525-532. [PMID: 28890201 DOI: 10.1016/j.ejps.2017.09.012] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2017] [Revised: 08/04/2017] [Accepted: 09/06/2017] [Indexed: 02/07/2023]
Abstract
The incidence of breast cancer remarkably increases all over the world. Therefore, there is a great demand to introduce new approaches into cancer treatment field. The current study was designated to evaluate the role of doxorubicin (DOX) and/or thymoquinone (TQ) nanomatrix in potentiating the cytotoxicity of either drug, and to investigate the ability of TQ to reduce cardiotoxicity of DOX in solid Ehrlich carcinoma (SEC)-bearing mice. DOX and TQ were loaded into F2 gel, which is a fully-acetylated poly-N-acetyl glucosamine nanofiber. SEC was induced in female albino mice as a model for experimentally induced breast cancer. Mice were randomly divided into eight groups (n=10): normal control, tumor control, F2 gel, free DOX, DOX+F2 gel, free TQ, TQ+F2 gel, and DOX+TQ+F2 gel. On day 28th from tumor inoculation, mice were sacrificed and blood samples were collected for measurement of the cardiac markers; lactate dehydrogenase (LDH) and creatine kinase (CK-MB). In addition, cardiac tissue was utilized for determination of lipid peroxide, and tumor tissue was used for measurement of anti-apoptotic protein Bcl-2 as well as gene expression of the tumor suppressor gene P53. DOX and/or TQ showed a significant reduction in tumor volume, cardiac markers, tumor Bcl-2, and P53 upregulation compared to free conventional therapies. Co-treatment with DOX+TQ+F2 gel was superior to all other groups in exerting beneficial effects. Use of TQ as an adjuvant therapy with DOX could improve its cytotoxic effects and limit its cardiac toxicity. Furthermore, loading of DOX and/or TQ into F2 gel showed a remarkable anti-cancer activity.
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MESH Headings
- Acetylglucosamine/administration & dosage
- Animals
- Antibiotics, Antineoplastic/administration & dosage
- Benzoquinones/administration & dosage
- Carcinoma, Ehrlich Tumor/drug therapy
- Carcinoma, Ehrlich Tumor/metabolism
- Carcinoma, Ehrlich Tumor/pathology
- Chemotherapy, Adjuvant
- Creatine Kinase/blood
- Creatine Kinase, MB Form/blood
- Doxorubicin/administration & dosage
- Female
- Gene Expression Regulation, Neoplastic/drug effects
- Genes, p53
- L-Lactate Dehydrogenase/blood
- Malondialdehyde/metabolism
- Mice
- Microscopy, Electron, Transmission
- Myocardium/metabolism
- Nanostructures/administration & dosage
- Nanostructures/ultrastructure
- Proto-Oncogene Proteins c-bcl-2/metabolism
- Tumor Burden/drug effects
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Affiliation(s)
| | - Eman G Khedr
- Biochemistry Department, Faculty of Pharmacy, Tanta University, Egypt
| | - El-Zeiny M Ebeid
- Physical Chemistry Department, Faculty of Science, Tanta University, Egypt
| | - Mohamed L Salem
- Immunology and Biotechnology Unit, Zoology Department, Faculty of Science Tanta University, Egypt
| | | | - Esraa M Mosalam
- Biochemistry Department, Faculty of Pharmacy, Menoufia University, Egypt.
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14
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Aboubaraka AE, Aboelfetoh EF, Ebeid EZM. Coagulation effectiveness of graphene oxide for the removal of turbidity from raw surface water. Chemosphere 2017; 181:738-746. [PMID: 28478234 DOI: 10.1016/j.chemosphere.2017.04.137] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2016] [Revised: 04/23/2017] [Accepted: 04/27/2017] [Indexed: 05/10/2023]
Abstract
This study presents the performance of graphene oxide (GO) as a coagulant in turbidity removal from naturally and artificially turbid raw surface water. GO is considered an excellent alternative to alum, the more common coagulant used in water treatment processes, to reduce the environmental release of aluminum. Effects of GO dosage, pH, and temperature on its coagulation ability were studied to determine the ideal turbidity removal conditions. The turbidity removal was ≥95% for all levels of turbid raw surface water (20, 100, and 200 NTU) at optimum conditions. The role of alkalinity in inducing turbidity removal by GO coagulation was much more pronounced upon using raw surface water samples compared with that using artificially turbid deionized water samples. Moreover, GO demonstrated high-performance removal of biological contaminants such as algae, heterotrophic bacteria, and fecal coliform bacteria by 99.0%, 98.8% and 96.0%, respectively, at a dosage of 40 mg/L. Concerning the possible environmental release of GO into the treated water following filtration process, there was no residual GO in a wide range of pH values. The outcomes of the study highlight the excellent coagulation performance of GO for the removal of turbidity and biological contaminants from raw surface water.
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Affiliation(s)
- Abdelmeguid E Aboubaraka
- Chemistry Department, Faculty of Science, Tanta University, Tanta, 31527, Egypt; Central Lab of El-Gharbia Water and Wastewater Company, Tanta, Egypt
| | - Eman F Aboelfetoh
- Chemistry Department, Faculty of Science, Tanta University, Tanta, 31527, Egypt.
| | - El-Zeiny M Ebeid
- Chemistry Department, Faculty of Science, Tanta University, Tanta, 31527, Egypt; Misr University for Science and Technology (MUST), 6th of October City, Egypt
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15
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Sakr MAS, Abdel Gawad SA, Abou Kana MTH, Ebeid EZM. Laser Performance of Some Oxazole Laser Dyes in Restricted Matrices. J Fluoresc 2017; 27:1267-1275. [PMID: 28286913 DOI: 10.1007/s10895-017-2058-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2016] [Accepted: 02/19/2017] [Indexed: 10/20/2022]
Abstract
This article reports the optical properties such as absorption profile, molar absorptivity, fluorescence profile and photo-physical parameters such as dipole moment, oscillator strength, fluorescence quantum yields, fluorescence lifetimes, laser performance and finally photostability of 2,5-Bis(5-tert-butyl-benzoxazol-2-yl)thiophene (BBOT),1,4-Bis(5-phenyl-2-oxazolyl)benzene (POPOB), 5-diphenyel-oxazole (PPO) laser dyes in different restricted hosts. (BBOT), (POPOB) and (PPO) are embedded in transparent silica-based nanoporous sol-gel glass and copolymer matrix of methyl methacrylate (MMA) and 2-hydroxyethyl methacrylate (HEMA). The absorption and fluorescence properties of these laser dyes in sol-gel glass matrices are compared with their respective properties in copolymer host. In case of sol-gel matrix, all dyes had higher quantum yields as well as lasing wavelength maxima. The laser performances as well as the photostability of these laser dyes in sol-gel glass displayed senior behavior compared with (MMA/ HEMA) copolymer samples upon using nitrogen laser (337.1 nm) as pumping energy.
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Affiliation(s)
- Mahmoud A S Sakr
- Chemistry Department, Faculty of Science, Tanta University, Tanta, Egypt.,Misr University for Science and Technology (MUST), 6th of October City, Egypt
| | - Sayed A Abdel Gawad
- Misr University for Science and Technology (MUST), 6th of October City, Egypt
| | - Maram T H Abou Kana
- Laser science and interactions department, National Institute of Laser Enhanced Science (NILES), Cairo University, P.O. Box 12613, Giza, Egypt.
| | - El-Zeiny M Ebeid
- Chemistry Department, Faculty of Science, Tanta University, Tanta, Egypt. .,Misr University for Science and Technology (MUST), 6th of October City, Egypt.
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16
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Zakaria MB, Ebeid EZM, Abdel-Galeil MM, Chikyow T. Cyanide bridged coordination polymer nanoflakes thermally derived Ni3C and fcc-Ni nanoparticles for electrocatalysts. NEW J CHEM 2017. [DOI: 10.1039/c7nj03311g] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
We have reported a controlled crystal growth process, which allows the formation of NiCNNi CP nanoflakes derived Ni3C and fcc-Ni nanoparticles.
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Affiliation(s)
- Mohamed B. Zakaria
- International Research Center for Materials Nanoarchitechtonics (MANA)
- National Institute for Materials Science (NIMS)
- Tsukuba
- Japan
- Department of Chemistry
| | | | | | - Toyohiro Chikyow
- International Research Center for Materials Nanoarchitechtonics (MANA)
- National Institute for Materials Science (NIMS)
- Tsukuba
- Japan
- Materials Data & Integrated System (MaDIS)
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17
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Abdelbar MF, Fayed TA, Meaz TM, Ebeid EZM. Photo-induced interaction of thioglycolic acid (TGA)-capped CdTe quantum dots with cyanine dyes. Spectrochim Acta A Mol Biomol Spectrosc 2016; 168:1-11. [PMID: 27267278 DOI: 10.1016/j.saa.2016.05.029] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/08/2015] [Revised: 12/19/2015] [Accepted: 05/22/2016] [Indexed: 06/06/2023]
Abstract
The photo-induced interaction of three different sizes of thioglycolic acid (TGA)-capped CdTe quantum dots (CdTe QDs) with two monomethine cyanine dyes belonging to the thiazole orange (TO) family has been studied. Positively charged cyanines interact with QDs surface which is negatively charged due to capping agent carboxylate ions. The energy transfer parameters including Stern-Volmer constant, Ksv, number of binding sites, n, quenching sphere radius, r, the critical energy transfer distance, R0, and energy transfer efficiencies, E have been calculated. The effect of structure and the number of aggregating molecules have been studied as a function of CdTe QDs particle size. Combining organic and inorganic semiconductors leads to increase of the effective absorption cross section of the QDs which can be utilized in novel nanoscale designs for light-emitting, photovoltaic and sensor applications. A synthesized triplet emission of the studied dyes was observed using CdTe QDs as donors and this is expected to play a potential role in molecular oxygen sensitization and in photodynamic therapy (PDT) applications.
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Affiliation(s)
- Mostafa F Abdelbar
- Chemistry Department, Faculty of Science, Tanta University, Tanta, Egypt
| | - Tarek A Fayed
- Chemistry Department, Faculty of Science, Tanta University, Tanta, Egypt
| | - Talaat M Meaz
- Physics Department, Faculty of Science, Tanta University, Tanta, Egypt
| | - El-Zeiny M Ebeid
- Chemistry Department, Faculty of Science, Tanta University, Tanta, Egypt; Misr University for Science and Technology (MUST), 6th of October City, Egypt
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Zakaria MB, Elmorsi MA, Ebeid EZM. Corrosion Protection of Aluminum Metal Using MCM-41 Films Supported by Silver Nanoparticles and Distyrylpyrazine Photopolymer. ACTA ACUST UNITED AC 2015. [DOI: 10.1166/asem.2015.1707] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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19
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El-Shekheby HA, Mangood AH, Hamza SM, Al-Kady AS, Ebeid EZM. A highly efficient and selective turn-on fluorescent sensor for Hg2+, Ag+and Ag nanoparticles based on a coumarin dithioate derivative. LUMINESCENCE 2013; 29:158-67. [DOI: 10.1002/bio.2521] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2012] [Revised: 03/11/2013] [Accepted: 03/16/2013] [Indexed: 11/06/2022]
Affiliation(s)
- Heba A. El-Shekheby
- Chemistry Department, Faculty of Science; El Menoufia University; Sheben ElKoom Egypt
| | - Ahmed H. Mangood
- Chemistry Department, Faculty of Science; El Menoufia University; Sheben ElKoom Egypt
| | - Salem M. Hamza
- Chemistry Department, Faculty of Science; El Menoufia University; Sheben ElKoom Egypt
| | - Ahmed S. Al-Kady
- Chemistry Department, Faculty of Science; Tanta University; Tanta Egypt
- Forensic Medicine Authority; Ministry of Justice; Tanta Egypt
| | - El-Zeiny M. Ebeid
- Chemistry Department, Faculty of Science; Tanta University; Tanta Egypt
- Misr University for Science and Technology (MUST); 6th October City Egypt
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20
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Al-Kady AS, Gaber M, Hussein MM, Ebeid EZM. Structural and fluorescence quenching characterization of hematite nanoparticles. Spectrochim Acta A Mol Biomol Spectrosc 2011; 83:398-405. [PMID: 21925929 DOI: 10.1016/j.saa.2011.08.052] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/02/2011] [Revised: 07/09/2011] [Accepted: 08/24/2011] [Indexed: 05/31/2023]
Abstract
Nanoparticles of the dominant hematite form (α-Fe(2)O(3)) of iron oxide have been prepared by a simple route of dropping FeCl(3) solution into boiling water. The nanoparticles have been characterized by transmission electron microscopy (TEM), UV-visible electronic absorption spectroscopy, chemical stoichiometry, thermal analysis methods (TGA, DSC and DTA), XRD, FTIR and magnetic susceptibility measurements. Kinetic analysis of the DSC calorigram of thermal dehydration of the nanoparticles reveals one stage of the dehydration process of energy of activation of 29.0 kJ mol(-1). The role of iron oxide nanoparticles in fluorescence quenching of coumarin thiourea derivatives (I-IV) was investigated at room temperature (296 K) by means of steady-state fluorescence spectroscopy. The quenching process was characterized by Stern-Volmer (S-V) plots which display a positive deviation from linearity. This could be explained by static and dynamic quenching models. The positive deviation in the S-V plot is interpreted in terms of ground-state complex formation model and sphere of action static quenching model. Various rate parameters for the fluorescence quenching process were determined by using the modified Stern-Volmer equation. The sphere of action static quenching model agrees very well with experimental results. Quenching constants for iron oxide nanoparticles are about four orders of magnitudes higher than quenching by Fe(3+) ions.
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Affiliation(s)
- Ahmed S Al-Kady
- Chemistry Department, Faculty of Science, Tanta University, Tanta, Egypt
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21
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Al-Kady AS, Ahmed ESI, Gaber M, Hussein MM, Ebeid EZM. Kinetics of catalyzed hydrolysis of 4-methylumbelliferyl caprylate (MUCAP) salmonella reagent. Spectrochim Acta A Mol Biomol Spectrosc 2011; 79:1540-1545. [PMID: 21715222 DOI: 10.1016/j.saa.2011.05.013] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/17/2010] [Revised: 05/05/2011] [Accepted: 05/11/2011] [Indexed: 05/31/2023]
Abstract
The kinetics of chemical hydrolysis including neutral, acid- and base-catalyzed hydrolysis of 4-methylumbelliferyl caprylate (MUCAP) salmonella reagent were studied at different temperatures. The rate constants and activation parameters were determined by following the build-up of fluorescence peak of the hydrolysis product 4-methylumbelliferone (4-MU). The time scale of esterase enzyme hydrolysis caused by salmonella was compared with chemical hydrolysis as a background process.
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Affiliation(s)
- Ahmed S Al-Kady
- Chemistry Department, Faculty of Science, Tanta University, Tanta, Egypt
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22
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Al-Kady AS, Gaber M, Hussein MM, Ebeid EZM. Nanostructure-loaded mesoporous silica for controlled release of coumarin derivatives: A novel testing of the hyperthermia effect. Eur J Pharm Biopharm 2011; 77:66-74. [DOI: 10.1016/j.ejpb.2010.10.007] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2010] [Revised: 10/15/2010] [Accepted: 10/19/2010] [Indexed: 11/26/2022]
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23
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Al-Kady AS, Gaber M, Hussein MM, Ebeid EZM. Fluorescence Enhancement of Coumarin Thiourea Derivatives by Hg2+, Ag+, and Silver Nanoparticles. J Phys Chem A 2009; 113:9474-84. [DOI: 10.1021/jp905566z] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Ahmed S. Al-Kady
- Chemistry Department, Faculty of Science, Tanta University, Tanta, Egypt, Faculty of Pharmacy, Cairo University, Cairo, Egypt, and Misr University for Science and Technology (MUST), 6th October City, Egypt
| | - M. Gaber
- Chemistry Department, Faculty of Science, Tanta University, Tanta, Egypt, Faculty of Pharmacy, Cairo University, Cairo, Egypt, and Misr University for Science and Technology (MUST), 6th October City, Egypt
| | - Mohamed M. Hussein
- Chemistry Department, Faculty of Science, Tanta University, Tanta, Egypt, Faculty of Pharmacy, Cairo University, Cairo, Egypt, and Misr University for Science and Technology (MUST), 6th October City, Egypt
| | - El-Zeiny M. Ebeid
- Chemistry Department, Faculty of Science, Tanta University, Tanta, Egypt, Faculty of Pharmacy, Cairo University, Cairo, Egypt, and Misr University for Science and Technology (MUST), 6th October City, Egypt
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25
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Ebeid EZM, Abdel-Kader MH, Issa RM, El-Daly SA. Viscosity and medium effects on the fluorescence and photochemical behaviour of some aryl chalcones. Chem Phys Lett 1988. [DOI: 10.1016/0009-2614(88)87454-2] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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26
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27
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Ebeid EZM, Issa RM, Ghoneim MM, El-Daly SA. Emission characteristics and micellization of cationic 1,4-bis(β-pyridyl-2-vinyl)benzene laser dye. ACTA ACUST UNITED AC 1986. [DOI: 10.1039/f19868200909] [Citation(s) in RCA: 25] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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28
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Ebeid EZM, El-Borai MA, Morsi SE, Guilard R. Photostability and emission characteristics of In(III)octaethylporphyrin - and in(III)tetraphenylporphyrin-chloride. Inorganica Chim Acta 1984. [DOI: 10.1016/s0020-1693(00)83316-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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29
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Ebeid EZM, Bridge NJ. Luminescence and lifetime measurements of 2,5-distyrylpyrazine (DSP), 1,4-bis(β-pyridyl-2-vinyl)benzene (P2VB) and their mixed crystals in the temperature range 8–300 K. ACTA ACUST UNITED AC 1984. [DOI: 10.1039/f19848001113] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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30
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Ebeid EZM, Morsi SE, El-Bayoumi MA, Williams JO. Luminescence of 9-cyanoanthracene. Identification of new excimeric species. ACTA ACUST UNITED AC 1978. [DOI: 10.1039/f19787401457] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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