Refat El‐Sayed
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View article: Utilization of non-plasticized polymer inclusion membrane for highly selective colorimetric sensor detection of zirconium in environmental samples
Utilization of non-plasticized polymer inclusion membrane for highly selective colorimetric sensor detection of zirconium in environmental samples Open
Schematic representation for the preparation and complexation of Zr( iv ) ions on the formed optical sensor.
View article: Development of an optode based on 2-amino-4-(4-nitrophenyl)diazenyl pyridine-3-ol and tri-<i>n</i>-octyl phosphine oxide for trace-level lead detection in complex samples
Development of an optode based on 2-amino-4-(4-nitrophenyl)diazenyl pyridine-3-ol and tri-<i>n</i>-octyl phosphine oxide for trace-level lead detection in complex samples Open
A new selective optode has been created for the ultra-sensitive detection of lead ions at trace levels.
View article: Revolutionizing silver quantification: a novel ternary surfactant system with 2-nitro-6-(thiazol-2-yl-diazenyl)phenol and Triton X-100 for enhanced spectrophotometric analysis
Revolutionizing silver quantification: a novel ternary surfactant system with 2-nitro-6-(thiazol-2-yl-diazenyl)phenol and Triton X-100 for enhanced spectrophotometric analysis Open
Herein, a pioneering methodology for the quantification of minute amounts of silver is introduced, using 2-nitro-6-(thiazol-2-yl-diazenyl)phenol (NTDP) as a complexing agent and Triton X-100 as a nonionic surfactant.
View article: Advanced functional polymer materials for biomedical applications
Advanced functional polymer materials for biomedical applications Open
Polymer structures are essential in biomedical applications due to their biocompatibility, biodegradability, and ability to form intricate structures on micro‐ to nanometer scales. This review, emphasizing electrospinning and phase inversi…
View article: Revolutionizing sensing technologies: Crafting a green, ultra-sensitive bismuth optical sensor via fixation of 5-(2′,4′-dimethyl-phenylazo)-6-hydroxypyrimidine-2,4-dione on PVC membrane
Revolutionizing sensing technologies: Crafting a green, ultra-sensitive bismuth optical sensor via fixation of 5-(2′,4′-dimethyl-phenylazo)-6-hydroxypyrimidine-2,4-dione on PVC membrane Open
An innovative and exceptionally responsive optical sensing device engineered to selectively identify Bi(III) ions in water-based solutions. The sensing component, 5-(2′,4′-dimethylphenylazo)-6-hydroxypyrimidine-2,4-dione (DMPAHPD), is inco…
View article: An innovative eco-friendly optical sensor designed specifically to detect gallium ions in environmental samples
An innovative eco-friendly optical sensor designed specifically to detect gallium ions in environmental samples Open
A novel membrane optical sensor with high selectivity and sensitivity was developed for detecting ultra-low concentrations of gallium (Ga3+) ions. This sensor utilized a newly synthesized compound, 4,4′-1,3-pHenylene bis(azanylyli-dene) bi…
View article: Optimization of innovative optical sensor for zirconium determination and capturing from environmental samples
Optimization of innovative optical sensor for zirconium determination and capturing from environmental samples Open
A highly sensitive bulk optode membrane, specifically engineered for the identification of zirconyl (ZrO2+) ions, has been successfully created. The membrane is composed of plasticized polyvinyl chloride (PVC), dibenzodylmethane (DBM) acti…
View article: The highly selective green colorimetric detection of yttrium ions in biological and environmental samples using the synergistic effect in an optical sensor
The highly selective green colorimetric detection of yttrium ions in biological and environmental samples using the synergistic effect in an optical sensor Open
Schematic representation for the preparation and complexation of Y 3+ ions on the formed optical sensor. The images are real photos of the sensor.
View article: Aluminum Silicate Organic Framework for the Removal of Industrial Organic Toxins
Aluminum Silicate Organic Framework for the Removal of Industrial Organic Toxins Open
An initial investigation was followed by a semi‐industrial analysis aimed at evaluating the ability of our new adsorbent system in various sectors to eliminate specific environmental hazards. A novel nanocomposite was fabricated through th…
View article: Insight into the corrosion inhibition and adsorption behavior of synthetic pyrazole surfactants as an efficient inhibitor for carbon steel in 1.0 mol/L HCl solutions
Insight into the corrosion inhibition and adsorption behavior of synthetic pyrazole surfactants as an efficient inhibitor for carbon steel in 1.0 mol/L HCl solutions Open
Two nonionic surfactants (NI Surf.) compounds derived from pyrazole were synthesized and inspected as inhibitors for corrosion of C-steel (CSt) in 1 mol/L HCl solution utilizing weight reduction (WR), potentiodynamic polarization (PDP) and…
View article: Effect of natural organic residues on the adsorption capacity of layered silicate alumina clay
Effect of natural organic residues on the adsorption capacity of layered silicate alumina clay Open
Layered silicate clay can be modified with organic residues to enhance its adsorption properties and make it suitable for the removal of industrial hazardous substances in various industries. The modification process involves treating the …
View article: Pro-Apoptotic Activity of Epi-Obtusane against Cervical Cancer: Nano Formulation, In Silico Molecular Docking, and Pharmacological Network Analysis
Pro-Apoptotic Activity of Epi-Obtusane against Cervical Cancer: Nano Formulation, In Silico Molecular Docking, and Pharmacological Network Analysis Open
Cancer is a major disease that threatens human health all over the world. Intervention and prevention in premalignant processes are successful ways to prevent cancer from striking. On the other hand, the marine ecosystem is a treasure stor…
View article: NaOH-Activated Natural Glauconite for Low-Cost Adsorption of Congo Red Dye
NaOH-Activated Natural Glauconite for Low-Cost Adsorption of Congo Red Dye Open
To explore the adsorption of Congo red (CR) dye from textile effluent, natural clay glauconite was employed as a sustainable and inexpensive adsorbent. The effects of varying concentrations of sodium hydroxide (NaOH) on glauconite alterati…
View article: Investigations of non-ionic surfactants derived from triazoles and pyrroles as potent corrosion inhibitors for carbon steel in hydrochloric acid
Investigations of non-ionic surfactants derived from triazoles and pyrroles as potent corrosion inhibitors for carbon steel in hydrochloric acid Open
The effectiveness of two synthetic non-ionic surfactants (NIS), including triazole and pyrrole derivatives, to inhibit corrosion of C-steel in 1.0 M HCl solution was tested. Their chemical compositions were verified using some of the analy…
View article: Polyaniline/Glauconite Nanocomposite Adsorbent for Congo Red Dye from Textile Wastewater
Polyaniline/Glauconite Nanocomposite Adsorbent for Congo Red Dye from Textile Wastewater Open
Glauconite (Gl), a naturally occurring clay material, was utilized as an affordable and ecologically friendly adsorbent to explore its capturing capacity towards Congo red (CR) dye from textile industrial waste effluent. To improve adsorpt…
View article: Application of marine algae separate and in combination with natural zeolite in dye adsorption from wastewater ; A review
Application of marine algae separate and in combination with natural zeolite in dye adsorption from wastewater ; A review Open
Industrial wastewater is obtained from industrial activities that include any solids that become useless during the manufacturing process. These wastes are considered as international green problems so significant solutions must be taken t…
View article: Application of Nano Bio-clay Composite in a Scaling-up Study for Wastewater Treatment
Application of Nano Bio-clay Composite in a Scaling-up Study for Wastewater Treatment Open
A scaling-up study integrating experimental and field experiments was managed to explore the most appropriate catalysis method to assist industries in getting rid of the Congo Red (CR) dye from industrial wastewater. The adsorption potenti…
View article: Experimentally and theoretically approaches for Congo red dye adsorption on novel kaolinite-alga nano-composite
Experimentally and theoretically approaches for Congo red dye adsorption on novel kaolinite-alga nano-composite Open
A comprehensive study combining experimental, computational, and field experiments was conducted to find out the most suitable catalysis method to assist industries using Congo red dye to get rid of this waste from industrial wastewater in…
View article: Enhancing the anticorrosion performance of mild steel in sulfuric acid using synthetic non-ionic surfactants: practical and theoretical studies
Enhancing the anticorrosion performance of mild steel in sulfuric acid using synthetic non-ionic surfactants: practical and theoretical studies Open
The anticorrosion potency of Sabic mild steel (MS) in 0.5 M H2SO4 solution was enhanced by three synthetic non-ionic surfactants (NI Surf.) containing pyridine and pyrimidine derivatives. These compounds are safe, environmentally friendly,…
View article: High Frequency Oscillatory Ventilation Versus Conventional Ventilation in Management of Neonatal Meconium Aspiration syndrome
High Frequency Oscillatory Ventilation Versus Conventional Ventilation in Management of Neonatal Meconium Aspiration syndrome Open
Meconium aspiration syndrome (MAS) is complex respiratory disease of the term and near-term neonate, which keeps on putting a significant weight on neonatal escalated care assets around the world.The point of this examination was appraisal…
View article: Synthesis of an Efficiency Heterocyclic Systems, Surface Properties and Potential Pharmacological Interest
Synthesis of an Efficiency Heterocyclic Systems, Surface Properties and Potential Pharmacological Interest Open
Synthesis of biologically active heterocyclic derivatives with the related fused systems incorporating a long chain of a fatty compound was described via the reactions of 5-amino-N-octadecyl-1H-pyrazole-4-carboxamide 4 with appropriate rea…