M.A. Abu-Saied

City of Scientific Research and Technological Applications

Author Statistics

Papers

Citation

H-Index

i-10 index

Research Trends

Author Order

Document Type

Co-Authors

Tarek H. Taha

City of Scientific Research and Technological Applications

Mehrez E. El‐Naggar

National Research Centre

Eman A. El Desouky

Alexandria University

Alaa Fahmy

Federal Institute For Materials Research and Testing

M.S. Mohy Eldin

City of Scientific Research and Technological Applications

Dalia I. Saleh

Taif University

Mohamed Elnouby

City of Scientific Research and Technological Applications

Emad A. Soliman

West Hertfordshire Hospitals NHS Trust

Saad Alamri

King Khalid University

Ahmed E. Mansy

City of Scientific Research and Technological Applications

Cooperative Institutions

City of Scientific Research and Technological Applications

Alexandria University

Al-Azhar University

National Research Centre

King Khalid University

Technology Applications (United States)

King Saud University

Cairo University

Menoufia University

Author Statistics

Papers

Citation

H-Index

i-10 index

Research Field

EFFECT OF ELECTRONIC CIGARETTES SMOKING ON COLOR STABILITY OF CAD/CAM ACRYLIC RESIN: IN VITRO STUDY

Alexandria Dental Journal (2023)

Ahmed Mahmoud Mohamed Sherine EL-Attar M.A. Abu-Saied Ingy Hassan

Acrylic resin

10.21608/adjalexu.2022.152513.1302

Cite

Citations (1)

Melamine-Maleic Acid Polyamide Adduct / Polyacrylonitrile Nanofibers as a Novel Adsorbent for Removal of Methyelene Blue Dye from Aqueous Solutions

Water Air & Soil Pollution (2024)

Ahmed E. Alprol M.A. Abu-Saied Walaa M. Thabet Ola Abdelwahab M.A. Abd El‐Ghaffar

Abstract Efficient removal of methylene blue (MB) dye from aqueous solutions is crucial for addressing environmental pollution. This study investigates the potential of Melamine-maleic acid polyamide adduct/polyacrylonitrile (ME-MA amide polymer/PAN) nanofibers as a novel adsorbent for MB dye removal. Characterization via scanning electron microscopy (SEM) revealed surface morphology changes, with fiber diameters ranging from 1 to 3 μm. Thermal stability analysis demonstrated enhanced stability for ME-MA/PAN compared to pure PAN fibers. Fourier transform infrared (FT-IR) analysis confirmed the presence of hydroxyl, amide, and thiol groups on the nanoparticle surface, covalently attached to the nanofiber surface. Through electrospinning, ME-MA/PAN composites were synthesized, showing promising capabilities for dye removal. Optimal conditions were observed at pH 12 and a ME-MA PAN dose of 0.02 g. MB removal efficiency increased with higher initial dye concentrations, peaking at 30 mg/L, and higher temperatures up to 40°C. Adsorption isotherm models indicated Langmuir adsorption capacity (Q m ) of 111.10 mg g −1 and a separation factor (R L ) of 0.297, with Freundlich constants (1/n) and K F values of 0.418 and 22.9, respectively. Kinetic and thermodynamic studies revealed favorable conditions for MB dye removal, validating ME-MA amide polymer/PAN nanofiber composites as environmentally friendly and effective materials for eliminating toxic MB dye from aqueous solutions. This research highlights the potential of ME-MA/PAN nanofibers in addressing dye pollution, suggesting their application in wastewater treatment for sustainable environmental management. Further investigation into regeneration methods and scalability is recommended for practical implementation in real-world scenarios.

Polyacrylonitrile

Electrospinning

Langmuir adsorption model

Thermal Stability

10.1007/s11270-024-07180-8

Cite

Citations (1)

Nanofibrous matrix of polycaprolactone embedded with zinc/vanadate doped hydroxyapatite: Mechanical and in vitro cellular growth

Journal of Materials Research and Technology (2021)

Dalia I. Saleh Mehrez E. El‐Naggar Ola A. Abu Ali M.A. Abu-Saied Mohamed Ahmed

The sequence of co-doped hydroxyapatite (HAP)/polycaprolactone (PCL) nanofibrous composites was prepared with different amounts of zinc. X-ray diffraction and Infrared techniques were approved for both Zn/V-HAP and Zn/[email protected] composites formation. The morphological and mechanical behaviors were considered. The 0.8Zn/V-HAP composite offers the smallest grains almost with a slight appearance of aggregates, besides small shallow pores with a highly rough surface. Its grain size starts from 0.13 to 0.9 μm. On the other hand, zinc ions cause fiber size homogeneity and reduction that the 0.8Zn/V-HAP composite is sized from 1.1 to 1.75 μm. Zinc incorporation into HAP powder causes a significant rise in surface roughness. Moreover, tensile strength records its maximum value of 5.00 ± 0.32 MPa in 0.6Zn/[email protected], while it declines for 0.8Zn/[email protected] to 4.94 ± 0.22 MPa. Additionally, the nanofibrous composite (0.0Zn/[email protected]) shows a contact angle of 100°±3, while the angle becomes narrower with increasing zinc content till reaching 83°±2 for the composition of 0.8 Zn/[email protected] scaffolds. Cell viability shows excellent potential in the absence of zinc with 92.4 ± 1%, while zinc contribution offers higher performance, reaching 98.4 ± 4% in 0.8Zn/[email protected] nanofiber. The scaffolds with the highest zinc content (0.8 Zn/[email protected]) record an inhibition zone of 22.1 ± 1.3 and 21.1 ± 1.1 mm against Escherichia coli and Staphylococcus aureus, respectively. Regarding cell attachment, zinc addition and amounts introduce manipulating tools and significant improvement in proliferation potential upon the whole fiber. Thus the previous data is recommended these scaffolds for more research in biological applications.

Polycaprolactone

10.1016/j.jmrt.2021.11.138

Cite

Citations (9)

Affinity Separation of Enzymes Using Immobilized Metal Ions PGMA Grafted Cellophane Membranes

Apple Academic Press eBooks (2014)

M.S. Mohy Eldin M.A. Abu-Saied Eman A. Soliman E. A. Hassan

Cellophane

10.1201/b16920-3

Cite

Citations (0)

Facile Synthesis of Natural Anise-Based Nanoemulsions and Their Antimicrobial Activity

Polymers (2021)

Ola A. Abu Ali Mehrez E. El‐Naggar Mohamed S. Abdel‐Aziz Dalia I. Saleh M.A. Abu-Saied

Anise oil was prepared in its nanoemulsion form to facilitate the penetration of microbial walls, causing microbe mortality. The penetration occurred easily owing to the reduction in its size (nm). Nanoemulsions with different concentrations of anise oil were prepared using lecithin as an emulsifying agent with the aid of an ultra-sonification process. Their morphological and chemical properties were then characterized. The promising constituents were l-Menthone (11.22%), Gurjunene (6.78%), Geranyl acetate (4.03%), Elemene (3.93%), Geranyl tiglate (3.53%), geraniol (3.48%), linalool (0.17%) as well as camphene (0.12%). Different concentrations of prepared anise oil in micro and nanoemulsions were tested as antimicrobial agents against Gram-positive bacteria (Staphylococcus aureus), Gram-negative bacteria (Escherichia coli), yeast (Candida albicans) and fungi (Asperigillus niger). The findings illustrated that the anise oil-based nanoemulsion exhibited better results. Different biochemical and biological evaluations of anise oil nanoemulsions were conducted, including determining killing times, antioxidant activities (using three different methods), and total phenolics. A trial to estimate the mode of action of anise oil-based nanoemulsion as an antimicrobial agent against S. aureus and C. albicans was performed via studying the release of reducing sugars and protein and conducting scanning electron microscopy.

10.3390/polym13122009

Cite

Citations (11)

Novel Proton Exchange Membranes Based on Sulfonated Poly(acrylonitrile-co-glycidyl methacrylate)/Poly(vinyl chloride) Composite

Sustainability (2023)

Eman A. El Desouky Emad A. Soliman Hessa H. Al‐Rasheed Ayman El‐Faham M.A. Abu-Saied

In this study, novel proton exchange membranes (PEMs) based on a composite of sulfonated polyacrylonitrile (SPAN), sulfonated polyglycidyl methacrylate (SPGMA), or sulfonated poly(acrylonitrile-co-glycidyl methacrylate) (SP(AN-co-GMA))/polyvinyl chloride (PVC) were developed to be used for direct methanol fuel cells (DMFCs). After polymerization and sulfonation of the prepared polymers, the polyelectrolyte membranes were prepared by the casting and solvent evaporation technique for sulfonated homo- or co-polymers with polyvinyl chloride (PVC) composites. The resulting membranes were characterized by Fourier infrared and Raman spectral analyses, X-ray diffractometry, and scanning electron microscopy. The findings of this study reveal that both the thermal stability and ion exchange capacity of the composite membranes based on sulfonated copolymers were higher than that of their corresponding composites based on sulfonated homopolymers. In this context, the weight loss percentage of the prepared composite polyelectrolyte membranes did not exceed 12% of their initial weights. The IEC of all the composite membranes ranged from 0.18 to 0.48 meq/g. Thus, the IEC value increased with the increasing proportion of the glycidyl methacrylate comonomer. Moreover, the prepared PEMs based on SP(AN-co-GMA)/PVC composites showed lower methanol permeability (8.7 × 10−7 cm2/s) than that of the Nafion membranes (3.39 × 10−6 cm2/s). Therefore, these prepared PEMs are a good candidate for DMFCs applications.

Comonomer

Glycidyl methacrylate

Polyacrylonitrile

Thermal Stability

10.3390/su151411166

Cite

Citations (2)

Novel sulfonated poly (vinyl alcohol)/carboxy methyl cellulose/acrylamide-based hybrid polyelectrolyte membranes

Scientific Reports (2022)

Atia Mahmoud Alaa Fahmy Abdelrahman Naser M.A. Abu-Saied

Abstract Novel polyelectrolytic hybrid membranes are prepared by blending carboxy methyl cellulose (CMC)-polyvinyl alcohol (PVA)-acrylamide (AA). Succinic acid and chlorosulfonic acid (CSA) are employed as crosslinkers and modifiers, respectively. Additionally, carboxylated carbon nanotube (CCNT) and sulfonated activated carbon (SAC) as fillers are used to attain appropriate chemical and mechanical stability for use as polyelectrolyte membranes (PEM). CMC, PVA, and AA are mixed and treated with CSA, CCNT, and SAC in different concentrations. First, CMC/PVA/AA solution is modified using CSA to produce a sulfonated polymeric matrix. Second, a different amount of CCNT or SAC was added as a filler to enhance the ion exchange capacity (IEC), ionic conductivity, and chemical stability. Third, the solution is cast as polyelectrolytic membranes. Chemical interactions between CMC, PVA, AA and other membrane components were confirmed using various characterization techniques such as Raman scattering spectroscopy and Fourier Transform Infrared (FTIR). Furthermore, mechanical strength, methanol uptake, gel fraction, ion exchange capacity (IEC), proton conductivity (PC), chemical and thermal stability were determined as functions of varied membrane modification components. Results reveal that the increase of CSA, CCNT and SAC is leading to increase the IEC values reaching 1.54 mmol/g for (CMC/PVA-4% CSA), 1.74 mmol/g for (CMC/PVA-4%CSA-2%CCNT) and 2.31 mmol/g for (CMC/PVA-4% CSA-2% SAC) comparing to 0.11 mmol/g for non-modified CMC/PVA/AA membrane. Sequentially, the proton conductivity value is changed from 1 × 10 –3 S/cm in non-modified CMC/PVA/AA membrane to 0.082 S/cm for (CMC/PVA-4% CSA), 0.0984 S/cm for (CMC/PVA-4%CSA-2%CCNT) and 0.1050 S/cm for (CMC/PVA-4% CSA-2% SAC). Such results enhance the potential feasibility of modified CMC/PVA/AA hybrid as polyelectrolytic membranes.

Vinyl alcohol

Polyvinyl Alcohol

Thermal Stability

Chemical modification

10.1038/s41598-022-26489-0

Cite

Citations (10)

Immobilized metal ions cellophane–PGMA‐grafted membranes for affinity separation of β‐galactosidase enzyme. I. Preparation and characterization

Journal of Applied Polymer Science (2008)

M.S. Mohy Eldin Emad A. Soliman E. A. Hassan M.A. Abu-Saied

Abstract Immobilized Cu 2+ ions affinity cellophane–poly(glycidyl methacrylate) (PGMA)‐grafted membranes have been prepared through three steps. The first step was introducing of epoxy groups to its chemical structure through grafting process with PGMA. Factors affecting the grafting process have been studied and grafting percentage (GP) up to 233% has been obtained. The second step was converting the introduced epoxy groups to sulfonic ones. It was found that maximum amount of sulfonic groups (2.7 mmol/g) was obtained with minimum GP (46.08%). The third and last step was the immobilization of Cu 2+ ions into sulfonated grafted membranes obtained from the previous step. Maximum amount of immobilized Cu 2+ ions was found to be 60.9 ppm per gram of polymer. The verification of the grafting and sulfonation steps has been performed through characterization of the obtained membranes using FTIR, TGA, and EDAX analysis. Finally, Cu 2+ ‐immobilized membranes have been evaluated in separation of β‐galactosidase (β‐Gal) enzyme from its mixture with bovine serum albumin (BSA) in different pH medium. Maximum protein adsorption, for both proteins, has been obtained at pH range 4–4.5; as 90 and 45% for β‐Gal and BSA, respectively. The results showed high affinity toward β‐Gal separation although BSA concentration (0.5%) is 20‐folds of β‐Gal (0.025%). © 2008 Wiley Periodicals, Inc. J Appl Polym Sci, 2009

Cellophane

Glycidyl methacrylate

Bovine serum albumin

Glutaraldehyde

10.1002/app.29246

Cite

Citations (26)

Structure/property relationship of polyvinyl alcohol/dimethoxydimethylsilane composite membrane: Experimental and theoretical studies

Spectrochimica Acta Part A Molecular and Biomolecular Spectroscopy (2019)

Alaa Fahmy Tarek A. Mohamed M.A. Abu-Saied Hisham Helaly Farid I. El–Dossoki

Polyvinyl Alcohol

10.1016/j.saa.2019.117810

Cite

Citations (30)

Removing of Anionic Dye from Aqueous Solutions by Adsorption Using of Multiwalled Carbon Nanotubes and Poly (Acrylonitrile-styrene) Impregnated with Activated Carbon

Sustainability (2021)

Khamael M. Abualnaja Ahmed E. Alprol M.A. Abu-Saied Mohamed Ashour Abdallah Tageldein Mansour

This paper presents an estimation of the adsorptive potential of multiwalled carbon nanotubes (MWCNTs) and modified poly (acrylonitrile-co-styrene) with activated carbon for the uptake of reactive red 35 (RR35) dye from aqueous solution by a batch system. MWCNT adsorbent was synthesized by encapsulation via in situ polymerization. The copolymer material of poly (acrylonitrile-styrene) P (AN-co-ST) was prepared in a ratio of 2:1 V/V by the precipitation polymerization process. The prepared composites’ properties were characterized by FTIR, SEM, Raman, mean particle size (PSA), and XRD analysis. The PSA of the copolymeric material was determined to be 450.5 and 994 nm for MWCNTs and P(AN-co-St)/AC, respectively. Moreover, the influences of different factors, for example pH (2–10), adsorbents dosage (0.005–0.04 g), contact time (5–120 min), initial dye concentration (10–50 mg L−1), and temperature (25–55 °C). The optimum values were determined to be 2 and 4 pH, 10 mg L−1 of RR35 dye, and 0.04 g of adsorbents at early contact time. Furthermore, the adsorption isotherm was studied using Langmuir, Freundlich, Tempkin, and Halsey models. Maximum capacity qmax for MWCNTS and P (AN-co-St)/AC was 256.41 and 30.30 mg g−1, respectively. The investigational kinetic study was appropriated well via a pseudo second-order model with a correlation coefficient around 0.99. Thermodynamic study displayed that the removal of RR35 is exothermic, a spontaneous and physisorption system. The adsorption efficiency reduced to around 54–55% of the RR35 after four cycles of reuse of the adsorbents at 120 min.

Langmuir adsorption model

10.3390/su13137077

Cite

Citations (52)