Othman Hamed
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View article: Prevalence of depressive symptoms among medical students at Badr University in Cairo, Egypt
Prevalence of depressive symptoms among medical students at Badr University in Cairo, Egypt Open
Background Owing to the intense academic and clinical pressures they face, medical students are considered particularly vulnerable to developing depressive symptoms. This research seeks to determine how widespread and severe these symptoms…
View article: Evaluation of Fruit Quality Properties in Medjool and Amri Date Palm Cultivar (Phoenix dactylifera, L.)
Evaluation of Fruit Quality Properties in Medjool and Amri Date Palm Cultivar (Phoenix dactylifera, L.) Open
View article: Design, synthesis, anticancer properties, and molecular docking of imidazolone derivatives with lipophilic moiety
Design, synthesis, anticancer properties, and molecular docking of imidazolone derivatives with lipophilic moiety Open
As part of an ongoing investigation into imidazolone derivatives with anticancer activities, herein we present the synthesis of a new series of imidazolones with various substituents, including lipophilic and hydrophilic. All synthesized i…
View article: Effect of convective and vacuum drying on some physicochemical and phytochemical characteristics of peppermint leaves
Effect of convective and vacuum drying on some physicochemical and phytochemical characteristics of peppermint leaves Open
This study examines the effects of convective air and vacuum drying at 40, 50, and 60 ℃ on the drying behavior, color, pigments, phenolic content, and antioxidant capacity of peppermint leaves. The drying data were modeled using eight dryi…
View article: Water soluble curcumin with alkyl sulfonate moiety: Synthesis, and anticancer efficacy
Water soluble curcumin with alkyl sulfonate moiety: Synthesis, and anticancer efficacy Open
Curcumin is classified as a chemotherapeutic medication because of its potential against numerous cancer cell lines and ability to inhibit cancer cell proliferation. Despite these findings, curcumin has yet to be commercialized as a drug d…
View article: Olive industry liquid waste from trash to metal adsorbent for wastewater purification
Olive industry liquid waste from trash to metal adsorbent for wastewater purification Open
View article: New Zwitterionic Imidazolones with Enhanced Water Solubility and Bioavailability: Synthesis, Anticancer Activity, and Molecular Docking
New Zwitterionic Imidazolones with Enhanced Water Solubility and Bioavailability: Synthesis, Anticancer Activity, and Molecular Docking Open
Finding an effective anticancer drug to combat cancer cell resistance remains a challenge. Herein, we synthesized a new series of imidazolone derivatives 4a–4i and assessed their anticancer activities against liver cancer cells (Hep3B), He…
View article: Curcumin-Based Heterocycles: Synthesis, Antimicrobial Genotoxicity and Molecular Docking
Curcumin-Based Heterocycles: Synthesis, Antimicrobial Genotoxicity and Molecular Docking Open
Curcumin is a natural compound with numerous biological activities and a precursor for many drugs. Development of a convenient one pot synthetic method for synthesizing curcumin-based diazepines and diazoles having antibacterial activities…
View article: Study on Thermal Conductivity and Mechanical Properties of Cyclotriphosphazene Resin-Forced Epoxy Resin Composites
Study on Thermal Conductivity and Mechanical Properties of Cyclotriphosphazene Resin-Forced Epoxy Resin Composites Open
Cyclotriphosphazenes, a variety of inorganic rings together with a curing ingredient, 4,4′-methylene dianiline (MDA), are mainly used to enhance the thermal conductivity and mechanical characteristics of epoxy resin (DGEBA). Three DGEBA@MD…
View article: Olive Industry Solid Waste-Based Biosorbent: Synthesis and Application in Wastewater Purification
Olive Industry Solid Waste-Based Biosorbent: Synthesis and Application in Wastewater Purification Open
In this work, we present a process for converting olive industry solid waste (OISW) into a value-added material with ionic receptors for use in the removal of toxic metal ions from wastewater. This 3D polymer is a promising adsorbent for l…
View article: Role of Nigella sativa oil and Alpha lipoic acid on Amikacin induced hepatorenal toxicity in rabbits
Role of Nigella sativa oil and Alpha lipoic acid on Amikacin induced hepatorenal toxicity in rabbits Open
A mikacin (AK) has long been used as an effective antibiotic to pre- vent Gram-negative infections.Despite its numerous benefits, Amikacin has considerable hepato-renal toxic adverse effects.The potential preventive benefits of NSO, "Nigel…
View article: Cellulose polymers with β-amino ester pendant group: design, synthesis, molecular docking and application in adsorption of toxic metals from wastewater
Cellulose polymers with β-amino ester pendant group: design, synthesis, molecular docking and application in adsorption of toxic metals from wastewater Open
View article: Amorphous Iron Phosphate: Inorganic Sol-Gel Synthesis-Sodium and Potassium Insertion
Amorphous Iron Phosphate: Inorganic Sol-Gel Synthesis-Sodium and Potassium Insertion Open
Amorphous iron phosphate, FePO4.2H2O, was synthesized at ambient temperature using an inorganic sol-gel method coupled with a microwave route. The experimental conditions for the gelling of the Fe (III)-H3PO4 system are defined. Potentiome…
View article: Heterocylcic Based Cucumin: Desin, Synthesis and Anticancer Efficay Against Hela Cells
Heterocylcic Based Cucumin: Desin, Synthesis and Anticancer Efficay Against Hela Cells Open
Developing a new effective anticancer agent becomes an urgent need to overcome of current drug-resistance. In this study we demonstrated that curcumin with heterocyclic moiety can function as an anticancer agent in a human. A new series of…
View article: Cellulose powder functionalized with phenyl biguanide: Synthesis, cross-linking, metal adsorption, and molecular docking
Cellulose powder functionalized with phenyl biguanide: Synthesis, cross-linking, metal adsorption, and molecular docking Open
A cellulose polymer functionalized with an amine chelating agent was designed and synthesized in a three-step process that involved oxidizing cellulose powder into dialdehyde cellulose, reacting cellulose dialdehyde with phenyl biguanide t…
View article: Zeolite/Cellulose Acetate (ZCA) in Blend Fiber for Adsorption of Erythromycin Residue From Pharmaceutical Wastewater: Experimental and Theoretical Study
Zeolite/Cellulose Acetate (ZCA) in Blend Fiber for Adsorption of Erythromycin Residue From Pharmaceutical Wastewater: Experimental and Theoretical Study Open
The expanding amount of remaining drug substances in wastewater adversely affects both the climate and human well-being. In the current investigation, we developed new cellulose acetic acid derivation/zeolite fiber as an effective techniqu…
View article: Cellulose-Based Hectocycle Nanopolymers: Synthesis, Molecular Docking and Adsorption of Difenoconazole from Aqueous Medium
Cellulose-Based Hectocycle Nanopolymers: Synthesis, Molecular Docking and Adsorption of Difenoconazole from Aqueous Medium Open
The goal of this work was to develop polymer-based heterocycle for water purification from toxic pesticides such as difenoconazole. The polymer chosen for this purpose was cellulose nanocrystalline (CNC); two cellulose based heterocycles w…
View article: Novel, Environment-Friendly Cellulose-Based Derivatives for Tetraconazole Removal from Aqueous Solution
Novel, Environment-Friendly Cellulose-Based Derivatives for Tetraconazole Removal from Aqueous Solution Open
In this study, cellulose-based derivatives with heterocyclic moieties were synthesized by reacting cellulose with furan-2-carbonyl chloride (Cell-F) and pyridine-2,6-dicarbonyl dichloride (Cell-P). The derivatives were evaluated as adsorbe…
View article: Carboxymethylated pulp as starting point to prepare hydroxypropylmethyl cellulose with enhanced gel rheological properties in an aqueous medium
Carboxymethylated pulp as starting point to prepare hydroxypropylmethyl cellulose with enhanced gel rheological properties in an aqueous medium Open
Hydroxypropyl methylcellulose in an aqueous solution upon heating tends to undergo thermal gelation, where the polymer chains form a network and precipitate from solution. This occurs at a temperature known as thermal gelation point. Polym…
View article: Magnetic Multiwall Carbon Nanotube Decorated with Novel Functionalities: Synthesis and Application as Adsorbents for Lead Removal from Aqueous Medium
Magnetic Multiwall Carbon Nanotube Decorated with Novel Functionalities: Synthesis and Application as Adsorbents for Lead Removal from Aqueous Medium Open
Water pollution is one of the major challenges facing modern society because of industrial development and urban growth. This study is directed towards assessing the use of multiwall carbon nanotube, after derivatization and magnetization,…
View article: Enhanced Ibuprofen Adsorption and Desorption on Synthesized Functionalized Magnetic Multiwall Carbon Nanotubes from Aqueous Solution
Enhanced Ibuprofen Adsorption and Desorption on Synthesized Functionalized Magnetic Multiwall Carbon Nanotubes from Aqueous Solution Open
In recent years, concerns have been raised about the occurrence of active raw materials and pharmaceutical ingredients that may be present in water, including wastewater, in the pharmaceutical industry. Wastewater treatment methods are not…
View article: Rheological and Electrical Study of a Composite Material Based on an Epoxy Polymer Containing Cyclotriphosphazene
Rheological and Electrical Study of a Composite Material Based on an Epoxy Polymer Containing Cyclotriphosphazene Open
In this work, we have studied, formulated, prepared, and characterized the rheological and electrical behavior of a composite material based on an epoxy resin Diglycidyl Ether of Bisphenol A (DGEBA) reinforced with hexaglycidyl cyclotripho…
View article: Inhibition and assessment of the biophysical gating properties of GluA2 and GluA2/A3 AMPA receptors using curcumin derivatives
Inhibition and assessment of the biophysical gating properties of GluA2 and GluA2/A3 AMPA receptors using curcumin derivatives Open
The development of efficacious and safe drugs for the treatment of neurological diseases related to glutamate toxicity has been a focus in neuropharmacological research. Specifically, discovering antagonists to modulate the activity and ki…
View article: Removal and extraction efficiency of Quaternary ammonium herbicides paraquat (PQ) from aqueous solution by ketoenol–pyrazole receptor functionalized silica hybrid adsorbent (SiNPz)
Removal and extraction efficiency of Quaternary ammonium herbicides paraquat (PQ) from aqueous solution by ketoenol–pyrazole receptor functionalized silica hybrid adsorbent (SiNPz) Open
Pesticides and herbicides have been used extensively in agricultural practices to control pests and increase crop yields. Paraquat (PQT2+, 1,1-dimethyl-4,4-dipyridinium chloride) is one of the herbicide that belois classified as…
View article: Cellulose with bidentate chelating functionality: An adsorbent for metal ions from wastewater
Cellulose with bidentate chelating functionality: An adsorbent for metal ions from wastewater Open
A cellulose derivative with multiple coordination sites for metals composed of cellulose powder and 1,2-pheneylnediamine was synthesized and evaluated as an adsorbent for metal ions from wastewater. The cellulose powder was generated from …
View article: Preparation of hydroxyapatite biobased microcomposite film for selective removal of toxic dyes from wastewater
Preparation of hydroxyapatite biobased microcomposite film for selective removal of toxic dyes from wastewater Open
View article: Corrosion Resistance of Mild Steel Coated with Orgainc Material Containing Pyrazol Moiety
Corrosion Resistance of Mild Steel Coated with Orgainc Material Containing Pyrazol Moiety Open
Pyridine (P1) and benzoic acid (P2) derivatives with pyrazole moieties were synthesized and evaluated as corrosion inhibitors for mild steel in acidic medium. The evaluation was performed by electrochemical impedance spectroscopy (EIS), po…
View article: Phosphorous-based epoxy resin composition as an effective anticorrosive coating for steel
Phosphorous-based epoxy resin composition as an effective anticorrosive coating for steel Open
Epoxy resin (ER) is an attractive material for metal protection against corrosion; it can form a strongly adhered film onto a metal surface through its multi coordination sites. In this study, an epoxy resin-based formulation was designed,…
View article: Adsorption and Corrosion Inhibition Effect of 2-Mercaptobenzimidazole (Surfactant) on a Carbon Steel Surface in an Acidic Medium: Experimental and Monte Carlo Simulations
Adsorption and Corrosion Inhibition Effect of 2-Mercaptobenzimidazole (Surfactant) on a Carbon Steel Surface in an Acidic Medium: Experimental and Monte Carlo Simulations Open
Experimental electrochemical methods, combined with Monte Carlo simulations, have been employed to investigate the possibility of using 1-decyl-2-(decylthio)-1H- benzimidazole (T2) as corrosion inhibitor for mild steel in a 1 M HCl medium.…
View article: The removal of methyl orange by nanohydroxyapatite from aqueous solution: isotherm, kinetics and thermodynamics studies
The removal of methyl orange by nanohydroxyapatite from aqueous solution: isotherm, kinetics and thermodynamics studies Open