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Dr. Amr Fouda
assistant professor

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0 Nanotechnology
0 Microbial Biotechnology
0 Green syntheses
0 Environmental nanotechnology
0 Microbiology (bacteria, viruses, fungi, parasites)

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Journal article
Published: 22 August 2021 in Horticulturae
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Stevia (Stevia rebaudiana, L.) is receiving increasing global interest as a diabetes-focused herb associated with zero-calorie stevioside sweetener glycoside production. This study was conducted to determine whether the arbuscular mycorrhiza (AM), as a biofertilizer integrated with nano boron (B), zinc (Zn), and molybdenum (Mo), would improve stevia growth and stevioside content. A factorial experiment with four replicates was conducted to evaluate the effect of AM at 0, 150, and 300 spore/g soil and three nano microelements B at 100 mg/L, Zn at 100 mg/L, and Mo at 40 mg/L on growth performance, stevioside, mineral contents, and biochemical contents of stevia. Results indicated that the combination of AM at 150 and B at 100 mg/L significantly increased plant height, number of leaves, fresh and dry-stem, and herbal g/plant during the 2019 and 2020 growing seasons. Chlorophyll content was increased by the combination between AM at 150 spore/g soil and B at 100 mg/L during both seasons. Stevioside content in leaves was increased by AM at 150 spore/g soil and B at 100 mg/L during the second season. In addition, N, P, K, Zn, and B in the leaf were increased by applying the combination of AM and nano microelements. Leaf bio constituent contents were increased with AM at 150 spore/g soil and B at 100 mg/L during both seasons. The application of AM and nano B can be exploited for high growth, mineral, and stevioside contents as a low-calorie sweetener product in stevia.

ACS Style

Reda M. Y. Zewail; Maha Ali; Ibrahim S. H. El-Gamal; Sherine H. A. Al-Maracy; Khandakar R. Islam; Mohamed Elsadek; Ehab Azab; Adil A. Gobouri; Nihal ElNahhas; Mostafa H. M. Mohamed; Heba S. El-Desouky. Interactive Effects of Arbuscular Mycorrhizal Inoculation with Nano Boron, Zinc, and Molybdenum Fertilization on Stevioside Contents of Stevia (Stevia rebaudiana, L.) Plants. Horticulturae 2021, 7, 260 .

AMA Style

Reda M. Y. Zewail, Maha Ali, Ibrahim S. H. El-Gamal, Sherine H. A. Al-Maracy, Khandakar R. Islam, Mohamed Elsadek, Ehab Azab, Adil A. Gobouri, Nihal ElNahhas, Mostafa H. M. Mohamed, Heba S. El-Desouky. Interactive Effects of Arbuscular Mycorrhizal Inoculation with Nano Boron, Zinc, and Molybdenum Fertilization on Stevioside Contents of Stevia (Stevia rebaudiana, L.) Plants. Horticulturae. 2021; 7 (8):260.

Chicago/Turabian Style

Reda M. Y. Zewail; Maha Ali; Ibrahim S. H. El-Gamal; Sherine H. A. Al-Maracy; Khandakar R. Islam; Mohamed Elsadek; Ehab Azab; Adil A. Gobouri; Nihal ElNahhas; Mostafa H. M. Mohamed; Heba S. El-Desouky. 2021. "Interactive Effects of Arbuscular Mycorrhizal Inoculation with Nano Boron, Zinc, and Molybdenum Fertilization on Stevioside Contents of Stevia (Stevia rebaudiana, L.) Plants." Horticulturae 7, no. 8: 260.

Journal article
Published: 06 August 2021 in Plants
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Episodes of drought that Morocco experienced in the years 1984–1986, 1993–1995, and 1997–2000 had repercussions that were felt many years later and continue to pose serious problems for environmentalists, as some of the affected lands have become practically deserted. These problems acted on the socio-economic conditions and created severe constraints for the development of the country. This work was conducted to study and identify changes that occurred in vegetation cover in the Oued Lahdar watershed (Rif, Morocco) between 1984 and 2017 using Land Surface Temperature (LST), Normalized Difference Vegetation Index (NDVI), Landsat TM 5, and Landsat OLI 8. The LST had significantly increased overall from 1984 to 2017, where it moved from a mean value of 29.4 °C in 1984 to 40.4 °C in 2007 and then reduced slightly to 37.9 °C in 2017. The vegetation cover index for the study area indicates that in 1984, fully vegetated areas represented 94.3% before deteriorating to 35.4% in 2007 and recovering in 2017 to 54.3%. While bare soil, which previously constituted 5.7%, reached a very high value of 64.6% in 2007 and then decreased to 47.7%. This study contributes towards society as it provides interesting data about the consequences of climate change in the area studied as well as potential protective strategies to protect vegetation cover.

ACS Style

Hind Khalis; Abdelhamid Sadiki; FatimaZahra Jawhari; Haytam Mesrar; Ehab Azab; Adil Gobouri; Muhammad Adnan; Mohammed Bourhia. Effects of Climate Change on Vegetation Cover in the Oued Lahdar Watershed. Northeastern Morocco. Plants 2021, 10, 1624 .

AMA Style

Hind Khalis, Abdelhamid Sadiki, FatimaZahra Jawhari, Haytam Mesrar, Ehab Azab, Adil Gobouri, Muhammad Adnan, Mohammed Bourhia. Effects of Climate Change on Vegetation Cover in the Oued Lahdar Watershed. Northeastern Morocco. Plants. 2021; 10 (8):1624.

Chicago/Turabian Style

Hind Khalis; Abdelhamid Sadiki; FatimaZahra Jawhari; Haytam Mesrar; Ehab Azab; Adil Gobouri; Muhammad Adnan; Mohammed Bourhia. 2021. "Effects of Climate Change on Vegetation Cover in the Oued Lahdar Watershed. Northeastern Morocco." Plants 10, no. 8: 1624.

Journal article
Published: 08 July 2021 in Fermentation
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Various challenges facing the industrial production of bio-based lactic acid (LA) such as cost of raw materials and nitrogen sources, as well as contamination risk by mesophilic and neutrophilic producers, should be overcome for the commercial production. This study aimed to investigate the feasibility of corn steep water (CSW) as a raw material for LA production using a newly thermo-alkali-tolerant lactic acid bacterium. The physicochemical characteristics of CSW were investigated. The high carbohydrates, proteins, amino acids, vitamins, essential elements, minerals, and non-protein nitrogenous compounds content confirmed that the CSW is a promising substrate for LA production. Out of 67 bacterial isolates, Enterococcus faecium WH51-1 was selected based on its tolerance to high temperatures and inhibitory compounds (sodium metabisulfate, sodium chloride, sodium acetate, and formic acid). Fermentation factors including sugar concentration, temperature, inoculum size, and neutralizing agents were optimized for LA production. Lactic acid concentration of about 44.6 g/L with a high yield (0.89 ± 0.02 g/g) was obtained using 60 g/L of CSW sugar, inoculum size 10% (v/v), 45 °C, and sodium hydroxide or calcium carbonate as a neutralizing agent. These results demonstrated the potential of strain WH51-1 for LA production using CSW effluent as raw material.

ACS Style

Mohamed Selim; Salem Salem; Amr Fouda; Mamdouh El-Gamal; Mohamed Abdel-Rahman. Use of Corn-Steep Water Effluent as a Promising Substrate for Lactic Acid Production by Enterococcus faecium Strain WH51-1. Fermentation 2021, 7, 111 .

AMA Style

Mohamed Selim, Salem Salem, Amr Fouda, Mamdouh El-Gamal, Mohamed Abdel-Rahman. Use of Corn-Steep Water Effluent as a Promising Substrate for Lactic Acid Production by Enterococcus faecium Strain WH51-1. Fermentation. 2021; 7 (3):111.

Chicago/Turabian Style

Mohamed Selim; Salem Salem; Amr Fouda; Mamdouh El-Gamal; Mohamed Abdel-Rahman. 2021. "Use of Corn-Steep Water Effluent as a Promising Substrate for Lactic Acid Production by Enterococcus faecium Strain WH51-1." Fermentation 7, no. 3: 111.

Journal article
Published: 06 July 2021 in Catalysts
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Magnesium oxide nanoparticles (MgO-NPs) were synthesized using the fungal strain Aspergillus terreus S1 to overcome the disadvantages of chemical and physical methods. The factors affecting the biosynthesis process were optimized as follows: concentration of Mg(NO3)2·6H2O precursor (3 mM), contact time (36 min), pH (8), and incubation temperature (35 °C). The characterization of biosynthesized MgO-NPs was accomplished using UV-vis spectroscopy, Fourier transform infrared (FT-IR) spectroscopy, transmission electron microscopy (TEM), scanning electron microscopy—energy dispersive X-ray (SEM-EDX), X-ray diffraction (XRD), and dynamic light scattering (DLS). Data confirmed the successful formation of crystallographic, spherical, well-dispersed MgO-NPs with a size range of 8.0–38.0 nm at a maximum surface plasmon resonance of 280 nm. The biological activities of biosynthesized MgO-NPs including antimicrobial activity, biotreatment of tanning effluent, and chromium ion removal were investigated. The highest growth inhibition of pathogenic Staphylococcus aureus, Bacillus subtilis, Pseudomonas aeruginosa, Escherichia coli, and Candida albicans was achieved at 200 μg mL–1 of MgO-NPs. The biosynthesized MgO-NPs exhibited high efficacy to decolorize the tanning effluent (96.8 ± 1.7% after 150 min at 1.0 µg mL–1) and greatly decrease chemical parameters including total suspended solids (TSS), total dissolved solids (TDS), biological oxygen demand (BOD), chemical oxygen demand (COD), and conductivity with percentages of 98.04, 98.3, 89.1, 97.2, and 97.7%, respectively. Further, the biosynthesized MgO-NPs showed a strong potential to remove chromium ions from the tanning effluent, from 835.3 mg L–1 to 21.0 mg L–1, with a removal percentage of 97.5%.

ACS Style

Ebrahim Saied; Ahmed Eid; Saad Hassan; Salem Salem; Ahmed Radwan; Mahmoud Halawa; Fayez Saleh; Hosam Saad; Essa Saied; Amr Fouda. The Catalytic Activity of Biosynthesized Magnesium Oxide Nanoparticles (MgO-NPs) for Inhibiting the Growth of Pathogenic Microbes, Tanning Effluent Treatment, and Chromium Ion Removal. Catalysts 2021, 11, 821 .

AMA Style

Ebrahim Saied, Ahmed Eid, Saad Hassan, Salem Salem, Ahmed Radwan, Mahmoud Halawa, Fayez Saleh, Hosam Saad, Essa Saied, Amr Fouda. The Catalytic Activity of Biosynthesized Magnesium Oxide Nanoparticles (MgO-NPs) for Inhibiting the Growth of Pathogenic Microbes, Tanning Effluent Treatment, and Chromium Ion Removal. Catalysts. 2021; 11 (7):821.

Chicago/Turabian Style

Ebrahim Saied; Ahmed Eid; Saad Hassan; Salem Salem; Ahmed Radwan; Mahmoud Halawa; Fayez Saleh; Hosam Saad; Essa Saied; Amr Fouda. 2021. "The Catalytic Activity of Biosynthesized Magnesium Oxide Nanoparticles (MgO-NPs) for Inhibiting the Growth of Pathogenic Microbes, Tanning Effluent Treatment, and Chromium Ion Removal." Catalysts 11, no. 7: 821.

Journal article
Published: 04 June 2021 in Coatings
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Synthesized titanium oxide nanoparticles (TiO2-NPs) nanotubes were used for the disinfection of new emerging corona virus-19 (SARS-CoV-2) in this study. The newly synthesized TiO2-NPs (nanotubes) were characterized by chemical spectroscopic analysis Fourier-transform infrared spectroscopy and ultraviolet FT-IR and UV. The chemical purity and Zeta potential distribution of the TiO2-NPs (nanotubes) were evaluated to confirm their nano-range, and their surface morphology was determined by scanning electron microscopy (SEM), transmission electron microscopy (TEM), high-resolution transmission electron microscopy (HR-TEM), and energy dispersive X-ray analysis (EDX). The antiviral activity of the TiO2-NPs (nanotubes) against SARS-CoV-2 was evaluated using 10% (Dimethyl sulfoxide) DMSO and dist.H2O using a cytotoxicity assay and inhibitory concentration assay (to determine the cytotoxic half concentration CC50 and half maximal inhibitory concentration IC50). The current results confirmed that TiO2-NPs exhibit strong anti-SARS-CoV-2 activity at very low cytotoxic concentrations in vitro with a non-significant selectivity index (CC50/IC50 ≤ 1). The obtained results indicate that TiO2-NPs and nanotubes have potent antiviral activity at a very low concentrations (IC50 = 568.6 ng/mL), with a weak cytotoxic effect on the cellular host (CC50 = 399.1 ng/mL). Thus, we highly recommend the use of TiO2-NPs (nanotubes) in vitro and in wall coatings as a potent disinfectant to combat SARS-CoV-2 with little irritation of the cellular hosts. Furthermore, we also recommend more and excessive prospective studies on the complexation of natural active or natural compounds with TiO2-NPs (nanotubes) to minimize their cytotoxicity, enhance their antiviral activity, and increase their inhibition of SARS-CoV-2.

ACS Style

Reham Hamza; Adil Gobouri; Hatim Al-Yasi; Tarek Al-Talhi; Samy El-Megharbel. A New Sterilization Strategy Using TiO2 Nanotubes for Production of Free Radicals that Eliminate Viruses and Application of a Treatment Strategy to Combat Infections Caused by Emerging SARS-CoV-2 during the COVID-19 Pandemic. Coatings 2021, 11, 680 .

AMA Style

Reham Hamza, Adil Gobouri, Hatim Al-Yasi, Tarek Al-Talhi, Samy El-Megharbel. A New Sterilization Strategy Using TiO2 Nanotubes for Production of Free Radicals that Eliminate Viruses and Application of a Treatment Strategy to Combat Infections Caused by Emerging SARS-CoV-2 during the COVID-19 Pandemic. Coatings. 2021; 11 (6):680.

Chicago/Turabian Style

Reham Hamza; Adil Gobouri; Hatim Al-Yasi; Tarek Al-Talhi; Samy El-Megharbel. 2021. "A New Sterilization Strategy Using TiO2 Nanotubes for Production of Free Radicals that Eliminate Viruses and Application of a Treatment Strategy to Combat Infections Caused by Emerging SARS-CoV-2 during the COVID-19 Pandemic." Coatings 11, no. 6: 680.

Journal article
Published: 03 June 2021 in Biomolecules
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Lettuce (Lactuca sativa) was grown using a foliar spray with whey protein hydrolysate (WPH) as opposed to normal nitrate fertilization. Lettuce juice was prepared from lettuce cultivated without any fertilization, nitrate fertilization, or WPH. Sixty weaned, 4-week-old male V-line rabbits with an average 455 ± 6 g body weight were randomly divided into 4 groups (n = 15) and administered different lettuce juices. Rabbits administered WPH-fertilized lettuce showed significantly higher (n = 5, p< 0.05) body weight and carcass weight than those receiving nitrate-fertilized lettuce. Rabbits administered nitrate-fertilized lettuce were associated with significantly (p< 0.05) higher levels of liver enzyme activities (AST, ALT, and ALP), bilirubin (total, direct, and indirect), and kidney biomarkers (creatinine, urea, and uric acid). Rabbits administered WPH-fertilized lettuce avoided such increases and exhibited normal levels of serum proteins. Rabbits administered nitrate-fertilized lettuce manifested significantly (p< 0.05) lower RBCs and Hb levels than that of the other groups, while those receiving WPH-fertilized lettuce showed the highest levels. Liver and kidney sections of rabbits receiving WPH-fertilized lettuce witnessed the absence of the histopathological changes induced by feeding on nitrate-fertilized lettuce and produced higher quality meat. WPH-lettuce can substitute nitrate-fertilized lettuce in feeding rabbits for better performance and health aspects.

ACS Style

Ali Osman; Tharwat Imbabi; Abdalla El-Hadary; Islam Sabeq; Shimaa Edris; AbdEl-Rahaman Merwad; Ehab Azab; Adil Gobouri; Amaal Mohammadein; Mahmoud Sitohy. Health Aspects, Growth Performance, and Meat Quality of Rabbits Receiving Diets Supplemented with Lettuce Fertilized with Whey Protein Hydrolysate Substituting Nitrate. Biomolecules 2021, 11, 835 .

AMA Style

Ali Osman, Tharwat Imbabi, Abdalla El-Hadary, Islam Sabeq, Shimaa Edris, AbdEl-Rahaman Merwad, Ehab Azab, Adil Gobouri, Amaal Mohammadein, Mahmoud Sitohy. Health Aspects, Growth Performance, and Meat Quality of Rabbits Receiving Diets Supplemented with Lettuce Fertilized with Whey Protein Hydrolysate Substituting Nitrate. Biomolecules. 2021; 11 (6):835.

Chicago/Turabian Style

Ali Osman; Tharwat Imbabi; Abdalla El-Hadary; Islam Sabeq; Shimaa Edris; AbdEl-Rahaman Merwad; Ehab Azab; Adil Gobouri; Amaal Mohammadein; Mahmoud Sitohy. 2021. "Health Aspects, Growth Performance, and Meat Quality of Rabbits Receiving Diets Supplemented with Lettuce Fertilized with Whey Protein Hydrolysate Substituting Nitrate." Biomolecules 11, no. 6: 835.

Journal article
Published: 12 May 2021 in International Journal of Molecular Sciences
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The discovery of eco-friendly, rapid, and cost-effective compounds to control diseases caused by microbes and insects are the main challenges. Herein, the magnesium oxide nanoparticles (MgO-NPs) are successfully fabricated by harnessing the metabolites secreted by Penicillium chrysogenum. The fabricated MgO-NPs were characterized using UV-Vis, XRD, TEM, DLS, EDX, FT-IR, and XPS analyses. Data showed the successful formation of crystallographic, spherical, well-dispersed MgO-NPs with sizes of 7–40 nm at a maximum wavelength of 250 nm. The EDX analysis confirms the presence of Mg and O ions as the main components with weight percentages of 13.62% and 7.76%, respectively. The activity of MgO-NPs as an antimicrobial agent was investigated against pathogens Staphylococcus aureus, Bacillus subtilis, Pseudomonas aeruginosa, Escherichia coli, and Candida albicans, and exhibited zone of inhibitions of 12.0 ± 0.0, 12.7 ± 0.9, 23.3 ± 0.8, 17.7 ± 1.6, and 14.7 ± 0.6 mm respectively, at 200 µg mL−1. The activity is decreased by decreasing the MgO-NPs concentration. The biogenic MgO-NPs exhibit high efficacy against different larvae instar and pupa of Anopheles stephensi, with LC50 values of 12.5–15.5 ppm for I–IV larvae instar and 16.5 ppm for the pupa. Additionally, 5 mg/cm2 of MgO-NPs showed the highest protection percentages against adults of Anopheles stephensi, with values of 100% for 150 min and 67.6% ± 1.4% for 210 min.

ACS Style

Amr Fouda; Mohamed A. Awad; Ahmed M. Eid; Ebrahim Saied; Mohammed G. Barghoth; Mohammed F. Hamza; Salah Abdelbary; Saad El-Din Hassan. An Eco-Friendly Approach to the Control of Pathogenic Microbes and Anopheles stephensi Malarial Vector Using Magnesium Oxide Nanoparticles (Mg-NPs) Fabricated by Penicillium chrysogenum. International Journal of Molecular Sciences 2021, 22, 5096 .

AMA Style

Amr Fouda, Mohamed A. Awad, Ahmed M. Eid, Ebrahim Saied, Mohammed G. Barghoth, Mohammed F. Hamza, Salah Abdelbary, Saad El-Din Hassan. An Eco-Friendly Approach to the Control of Pathogenic Microbes and Anopheles stephensi Malarial Vector Using Magnesium Oxide Nanoparticles (Mg-NPs) Fabricated by Penicillium chrysogenum. International Journal of Molecular Sciences. 2021; 22 (10):5096.

Chicago/Turabian Style

Amr Fouda; Mohamed A. Awad; Ahmed M. Eid; Ebrahim Saied; Mohammed G. Barghoth; Mohammed F. Hamza; Salah Abdelbary; Saad El-Din Hassan. 2021. "An Eco-Friendly Approach to the Control of Pathogenic Microbes and Anopheles stephensi Malarial Vector Using Magnesium Oxide Nanoparticles (Mg-NPs) Fabricated by Penicillium chrysogenum." International Journal of Molecular Sciences 22, no. 10: 5096.

Journal article
Published: 10 May 2021 in Journal of Fungi
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The metabolites of the fungal strain Rhizopus oryaze were used as a biocatalyst for the green-synthesis of magnesium oxide nanoparticles (MgO-NPs). The production methodology was optimized to attain the maximum productivity as follows: 4 mM of precursor, at pH 8, incubation temperature of 35 °C, and reaction time of 36 h between metabolites and precursor. The as-formed MgO-NPs were characterized by UV-Vis spectroscopy, TEM, SEM-EDX, XRD, DLS, FT-IR, and XPS analyses. These analytical techniques proved to gain crystalline, homogenous, and well-dispersed spherical MgO-NPs with an average size of 20.38 ± 9.9 nm. The potentiality of MgO-NPs was dose- and time-dependent. The biogenic MgO-NPs was found to be a promising antimicrobial agent against the pathogens including Staphylococcus aureus, Bacillus subtilis, Pseudomonas aeruginosa, Escherichia coli, and Candida albicans with inhibition zones of 10.6 ± 0.4, 11.5 ± 0.5, 13.7 ± 0.5, 14.3 ± 0.7, and 14.7 ± 0.6 mm, respectively, at 200 μg mL–1. Moreover, MgO-NPs manifested larvicidal and adult repellence activity against Culex pipiens at very low concentrations. The highest decolorization percentages of tanning effluents were 95.6 ± 1.6% at 100 µg/ 100 mL after 180 min. At this condition, the physicochemical parameters of tannery effluents, including TSS, TDS, BOD, COD, and conductivity were reduced with percentages of 97.9%, 98.2%, 87.8%, 95.9%, and 97.3%, respectively. Moreover, the chromium ion was adsorbed with percentages of 98.2% at optimum experimental conditions.

ACS Style

Saad El-Din Hassan; Amr Fouda; Ebrahim Saied; Mohamed M. S. Farag; Ahmed M. Eid; Mohammed G. Barghoth; Mohamed A. Awad; Mohammed F. Hamza. Rhizopus oryzae-Mediated Green Synthesis of Magnesium Oxide Nanoparticles (MgO-NPs): A Promising Tool for Antimicrobial, Mosquitocidal Action, and Tanning Effluent Treatment. Journal of Fungi 2021, 7, 372 .

AMA Style

Saad El-Din Hassan, Amr Fouda, Ebrahim Saied, Mohamed M. S. Farag, Ahmed M. Eid, Mohammed G. Barghoth, Mohamed A. Awad, Mohammed F. Hamza. Rhizopus oryzae-Mediated Green Synthesis of Magnesium Oxide Nanoparticles (MgO-NPs): A Promising Tool for Antimicrobial, Mosquitocidal Action, and Tanning Effluent Treatment. Journal of Fungi. 2021; 7 (5):372.

Chicago/Turabian Style

Saad El-Din Hassan; Amr Fouda; Ebrahim Saied; Mohamed M. S. Farag; Ahmed M. Eid; Mohammed G. Barghoth; Mohamed A. Awad; Mohammed F. Hamza. 2021. "Rhizopus oryzae-Mediated Green Synthesis of Magnesium Oxide Nanoparticles (MgO-NPs): A Promising Tool for Antimicrobial, Mosquitocidal Action, and Tanning Effluent Treatment." Journal of Fungi 7, no. 5: 372.

Review
Published: 07 May 2021 in Plants
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Endophytic bacteria colonize plants and live inside them for part of or throughout their life without causing any harm or disease to their hosts. The symbiotic relationship improves the physiology, fitness, and metabolite profile of the plants, while the plants provide food and shelter for the bacteria. The bacteria-induced alterations of the plants offer many possibilities for biotechnological, medicinal, and agricultural applications. The endophytes promote plant growth and fitness through the production of phytohormones or biofertilizers, or by alleviating abiotic and biotic stress tolerance. Strengthening of the plant immune system and suppression of disease are associated with the production of novel antibiotics, secondary metabolites, siderophores, and fertilizers such as nitrogenous or other industrially interesting chemical compounds. Endophytic bacteria can be used for phytoremediation of environmental pollutants or the control of fungal diseases by the production of lytic enzymes such as chitinases and cellulases, and their huge host range allows a broad spectrum of applications to agriculturally and pharmaceutically interesting plant species. More recently, endophytic bacteria have also been used to produce nanoparticles for medical and industrial applications. This review highlights the biotechnological possibilities for bacterial endophyte applications and proposes future goals for their application.

ACS Style

Ahmed Eid; Amr Fouda; Mohamed Abdel-Rahman; Salem Salem; Albaraa Elsaied; Ralf Oelmüller; Mohamed Hijri; Arnab Bhowmik; Amr Elkelish; Saad Hassan. Harnessing Bacterial Endophytes for Promotion of Plant Growth and Biotechnological Applications: An Overview. Plants 2021, 10, 935 .

AMA Style

Ahmed Eid, Amr Fouda, Mohamed Abdel-Rahman, Salem Salem, Albaraa Elsaied, Ralf Oelmüller, Mohamed Hijri, Arnab Bhowmik, Amr Elkelish, Saad Hassan. Harnessing Bacterial Endophytes for Promotion of Plant Growth and Biotechnological Applications: An Overview. Plants. 2021; 10 (5):935.

Chicago/Turabian Style

Ahmed Eid; Amr Fouda; Mohamed Abdel-Rahman; Salem Salem; Albaraa Elsaied; Ralf Oelmüller; Mohamed Hijri; Arnab Bhowmik; Amr Elkelish; Saad Hassan. 2021. "Harnessing Bacterial Endophytes for Promotion of Plant Growth and Biotechnological Applications: An Overview." Plants 10, no. 5: 935.

Journal article
Published: 29 April 2021 in Cells
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Microbial endophytes organize symbiotic relationships with the host plant, and their excretions contain diverse plant beneficial matter such as phytohormones and bioactive compounds. In the present investigation, six bacterial and four fungal strains were isolated from the common bean (Phaseolus vulgaris L.) root plant, identified using molecular techniques, and their growth-promoting properties were reviewed. All microbial isolates showed varying activities to produce indole-3-acetic acid (IAA) and different hydrolytic enzymes such as amylase, cellulase, protease, pectinase, and xylanase. Six bacterial endophytic isolates displayed phosphate-solubilizing capacity and ammonia production. We conducted a field experiment to evaluate the promotion activity of the metabolites of the most potent endophytic bacterial (Bacillus thuringiensis PB2 and Brevibacillus agri PB5) and fungal (Alternaria sorghi PF2 and, Penicillium commune PF3) strains in comparison to two exogenously applied hormone, IAA, and benzyl adenine (BA), on the growth and biochemical characteristics of the P. vulgaris L. Interestingly, our investigations showed that bacterial and fungal endophytic metabolites surpassed the exogenously applied hormones in increasing the plant biomass, photosynthetic pigments, carbohydrate and protein contents, antioxidant enzyme activity, endogenous hormones and yield traits. Our findings illustrate that the endophyte Brevibacillus agri (PB5) provides high potential as a stimulator for the growth and productivity of common bean plants.

ACS Style

Mohamed Ismail; Mohamed Amin; Ahmed Eid; Saad Hassan; Hany Mahgoub; Islam Lashin; Abdelrhman Abdelwahab; Ehab Azab; Adil Gobouri; Amr Elkelish; Amr Fouda. Comparative Study between Exogenously Applied Plant Growth Hormones versus Metabolites of Microbial Endophytes as Plant Growth-Promoting for Phaseolus vulgaris L. Cells 2021, 10, 1059 .

AMA Style

Mohamed Ismail, Mohamed Amin, Ahmed Eid, Saad Hassan, Hany Mahgoub, Islam Lashin, Abdelrhman Abdelwahab, Ehab Azab, Adil Gobouri, Amr Elkelish, Amr Fouda. Comparative Study between Exogenously Applied Plant Growth Hormones versus Metabolites of Microbial Endophytes as Plant Growth-Promoting for Phaseolus vulgaris L. Cells. 2021; 10 (5):1059.

Chicago/Turabian Style

Mohamed Ismail; Mohamed Amin; Ahmed Eid; Saad Hassan; Hany Mahgoub; Islam Lashin; Abdelrhman Abdelwahab; Ehab Azab; Adil Gobouri; Amr Elkelish; Amr Fouda. 2021. "Comparative Study between Exogenously Applied Plant Growth Hormones versus Metabolites of Microbial Endophytes as Plant Growth-Promoting for Phaseolus vulgaris L." Cells 10, no. 5: 1059.

Journal article
Published: 24 April 2021 in Coatings
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Applications of medicinal uses of metals and their complexes have been gaining major clinical significance, especially during the COVID-19 pandemic. The ligation behavior of quercetin (Q), a flavonoid, and Zn metal, i.e., the Zn/Q complex, was fully characterized based on molar conductance, infrared (IR) spectra, elemental analysis, electronic spectra, thermogravimetric analysis, proton nuclear magnetic resonance (1H-NMR), and transmission electron microscopy (TEM) in our lab. Hepatotoxicity was induced by cadmium (CdCl2). A total of 40 male albino rats were randomly distributed into the following four groups: Control, hepatotoxic group (CdCl2), Zn/Q-treated group, and group treated with a combination of CdCl2 and Zn/Q. Serum hepatic enzymes (AST, ALT, and LDH), total protein, and enzymatic and nonenzymatic antioxidant levels were determined. Histology and TEM for hepatic tissues, in addition to the gene expression of SOD as an antioxidant enzyme in the hepatic tissues, were evaluated. The Q/Zn treatment demonstrated potent protective effects against CdCl2-induced sever oxidative stress and suppressed hepatic toxicity, genotoxicity, liver enzyme disturbances, and structural alterations. In conclusion, the Zn/Q complex produced a high potent antioxidant effect against the oxidative injury and genotoxicity induced by CdCl2 and could be considered to be a potent ameliorative hepatoprotective agent against CdCl2 hepatotoxicity, which could be beneficial during the COVID-19 pandemic.

ACS Style

Moamen Refat; Reham Hamza; Abdel A. Adam; Hosam Saad; Adil Gobouri; Ehab Azab; Fawziah Al-Salmi; Tariq Altalhi; Ebtihal Khojah; Ahmed Gaber; Samy El-Megharbel. Antioxidant, Antigenotoxic, and Hepatic Ameliorative Effects of Quercetin/Zinc Complex on Cadmium-Induced Hepatotoxicity and Alterations in Hepatic Tissue Structure. Coatings 2021, 11, 501 .

AMA Style

Moamen Refat, Reham Hamza, Abdel A. Adam, Hosam Saad, Adil Gobouri, Ehab Azab, Fawziah Al-Salmi, Tariq Altalhi, Ebtihal Khojah, Ahmed Gaber, Samy El-Megharbel. Antioxidant, Antigenotoxic, and Hepatic Ameliorative Effects of Quercetin/Zinc Complex on Cadmium-Induced Hepatotoxicity and Alterations in Hepatic Tissue Structure. Coatings. 2021; 11 (5):501.

Chicago/Turabian Style

Moamen Refat; Reham Hamza; Abdel A. Adam; Hosam Saad; Adil Gobouri; Ehab Azab; Fawziah Al-Salmi; Tariq Altalhi; Ebtihal Khojah; Ahmed Gaber; Samy El-Megharbel. 2021. "Antioxidant, Antigenotoxic, and Hepatic Ameliorative Effects of Quercetin/Zinc Complex on Cadmium-Induced Hepatotoxicity and Alterations in Hepatic Tissue Structure." Coatings 11, no. 5: 501.

Journal article
Published: 24 April 2021 in Materials
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Efficient removal of Cd(II) and Pb(II) from contaminated water is considered a fundamental point of view. Synthetic hydrogel biopolymers based on chitosan and alginate (cost-effective and eco-friendly) were successfully designed and characterized by highly efficient removal contaminants. The sorbents are characterized by FTIR, SEM-EDX, TGA, XPS analyses and textural properties which are qualified by N2 adsorption. The sorption properties are firstly investigated by the effect of pH, sorption isotherms, uptake kinetics, and selectivity from multi-metal solution with equi-molar concentration. The sorbent with 1:3 ratios (of chitosan and alginate respectively) is the most effective for metal removal (i.e., 0.81 mmol Cd g−1 and 0.41 mmol Pb g−1). Langmuir and Sip’s models fitted better the adsorption isotherms compared to the Freundlich model. Uptake kinetics was well fitted by pseudo-first-order rate equation, while the saturation was achieved within 40 min. The sorbent shows good reproducibility through duplicate the experiments with negligible decreasing efficiency (>2.5%). The sorbent was applied for water treatment on samples collected from the industrial area (i.e., 653 and 203 times over the MCL for Cd(II) and Pb(II) respectively according to WHO). The concentration of Cd and Pb was drastically decreased in the effluents as pH increased with removal efficiency up to 99% for both elements at pH 5.8 and SD equivalent 1 g L−1 for 5 h.

ACS Style

Mohammed F. Hamza; Nora A. Hamad; Doaa M. Hamad; Mahmoud S. Khalafalla; Adel A.-H. Abdel-Rahman; Ibrahim F. Zeid; Yuezhou Wei; Mahmoud M. Hessien; Amr Fouda; Waheed M. Salem. Synthesis of Eco-Friendly Biopolymer, Alginate-Chitosan Composite to Adsorb the Heavy Metals, Cd(II) and Pb(II) from Contaminated Effluents. Materials 2021, 14, 2189 .

AMA Style

Mohammed F. Hamza, Nora A. Hamad, Doaa M. Hamad, Mahmoud S. Khalafalla, Adel A.-H. Abdel-Rahman, Ibrahim F. Zeid, Yuezhou Wei, Mahmoud M. Hessien, Amr Fouda, Waheed M. Salem. Synthesis of Eco-Friendly Biopolymer, Alginate-Chitosan Composite to Adsorb the Heavy Metals, Cd(II) and Pb(II) from Contaminated Effluents. Materials. 2021; 14 (9):2189.

Chicago/Turabian Style

Mohammed F. Hamza; Nora A. Hamad; Doaa M. Hamad; Mahmoud S. Khalafalla; Adel A.-H. Abdel-Rahman; Ibrahim F. Zeid; Yuezhou Wei; Mahmoud M. Hessien; Amr Fouda; Waheed M. Salem. 2021. "Synthesis of Eco-Friendly Biopolymer, Alginate-Chitosan Composite to Adsorb the Heavy Metals, Cd(II) and Pb(II) from Contaminated Effluents." Materials 14, no. 9: 2189.

Journal article
Published: 14 April 2021 in Agriculture
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The deficiency of water sources and the environmental disposal of large amounts of biomass waste (orange peels) produces economic and environmental problems, though its conversion into biochar by a pyrolysis procedure might be used to improve soil productivity. In the current study, we investigated the performance of superabsorbent biochar composite grafted on CMC as a low-cost, alternative, and biodegradable terpolymer composite (IPNCB) for soil water retention capacity. The IPNCB composite was synthesized by both microwave and conventional routes. The optimal reaction parameters proved that the microwave route has a high grafting percentage (%G) and short reaction time compared to the conventional route. The superabsorbent composite was characterized using different methods: FTIR, TGA, and SEM. The results show that the equilibrium water swelling (EW) of the IPNCB composite was improved at a 2% biochar concentration. The incorporation of biochar (BC) into the polymer network improved the water holding capacity (WHC) to 57.6% and water retention (WR) to 9.1% after 30 days. The degradation test indicates the IPNCB composite has a good degradability rate. Mixing soil with the prepared IPNCB composite can improve plant growth and reduce water consumption through the irrigation of arid lands. The IPNCB composite is a candidate in sustainable agriculture applications.

ACS Style

Shimaa Elsaeed; E. Zaki; Tarek Ibrahim; Nasser Ibrahim Talha; Hosam Saad; Adil Gobouri; Amr Elkelish; Salah Mohamed El-Kousy. Biochar Grafted on CMC-Terpolymer by Green Microwave Route for Sustainable Agriculture. Agriculture 2021, 11, 350 .

AMA Style

Shimaa Elsaeed, E. Zaki, Tarek Ibrahim, Nasser Ibrahim Talha, Hosam Saad, Adil Gobouri, Amr Elkelish, Salah Mohamed El-Kousy. Biochar Grafted on CMC-Terpolymer by Green Microwave Route for Sustainable Agriculture. Agriculture. 2021; 11 (4):350.

Chicago/Turabian Style

Shimaa Elsaeed; E. Zaki; Tarek Ibrahim; Nasser Ibrahim Talha; Hosam Saad; Adil Gobouri; Amr Elkelish; Salah Mohamed El-Kousy. 2021. "Biochar Grafted on CMC-Terpolymer by Green Microwave Route for Sustainable Agriculture." Agriculture 11, no. 4: 350.

Journal article
Published: 01 April 2021 in Separations
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Dyes are a type of pollutant that have been discharged into water streams by various industries and had harmful effects on the environment and human health. Therefore, present work was directed to recycle acrylic fibers waste to be used as an adsorbent to exclude dyes such as methylene blue (MB) and Congo red (CR) from dyes-polluted wastewater. Acrylic fibers waste was converted into membrane followed by chemical grafting with p-phenylenediamine monomer to form functional modified membranes. Afterwards, some characterization analyses; Fourier transform-infrared, scanning electron microscope, swelling behavior, and porosity properties were performed for the acrylic fiber grafted membrane (AFGM). For obtaining the best conditions that permit the highest adsorption capacity of the AFGM, some preliminary experiments followed by general full factorial design experiments were displayed. Langmuir, Freundlich isotherms and kinetic studies evaluations were applied. Results revealed that, the adsorption capacities of the AFGM were 61% for Methylene blue and 86% for Congo red that stated the high affinity of the AFGM to the anionic dyes. The reusability of the AFGM membranes in different cycles for 3Rs processes “Removal, Recovery, and Re-use” indicated the efficiency of the AFGM to be used in wastewater treatment.

ACS Style

Ahmed Labena; Ahmed Abdelhamid; Shimaa Husien; Tarek Youssef; Ehab Azab; Adil Gobouri; Gehan Safwat. Grafting of Acrylic Membrane Prepared from Fibers Waste for Dyes Removal: Methylene Blue and Congo Red. Separations 2021, 8, 42 .

AMA Style

Ahmed Labena, Ahmed Abdelhamid, Shimaa Husien, Tarek Youssef, Ehab Azab, Adil Gobouri, Gehan Safwat. Grafting of Acrylic Membrane Prepared from Fibers Waste for Dyes Removal: Methylene Blue and Congo Red. Separations. 2021; 8 (4):42.

Chicago/Turabian Style

Ahmed Labena; Ahmed Abdelhamid; Shimaa Husien; Tarek Youssef; Ehab Azab; Adil Gobouri; Gehan Safwat. 2021. "Grafting of Acrylic Membrane Prepared from Fibers Waste for Dyes Removal: Methylene Blue and Congo Red." Separations 8, no. 4: 42.

Journal article
Published: 31 March 2021 in Crystals
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The aim of this study was to evaluate the antioxidant and anti-inflammatory effects of the new [Ru(Q)(Cl)2(H2O)2] complex (RuIII/Q). A new vital complex containing quercetin flavonoid compound (Q) with ruthenium (III) ions was synthesized. The molar conductivity of the RuIII/Q complex was measured in dimethylsulfoxide (DMSO) with value 12 (Ω−1 mol−1 cm−1, indicating their non-electrolytic nature. Infrared (FTIR) spectroscopic investigation of the RuIII/Q complex indicated that Q is coordinated as a bidentate with Ru metal ions through the oxygen of carbonyl C(4)=O group and oxygen of phenolic C(3)−O group based on the wavenumber shifts at 1654 and 1335 cm−1 respectively. The electronic (UV−Vis) spectra and the magnetic susceptibility value (1.85 B.M.) revealed that the Ru(III) complex has an octahedral geometry. The average diameter of the RuIII/Q nanoparticles was approximately 7–15 nm according to the transmission electron microscopy. The thermogravimetric study (TG/DTG) indicates that the RuIII/Q compound is quite stable until 300 °C. To assess biological activity, 60 male rats were allocated to six groups, namely control, DG (D-galactose), Q, RuIII/Q, DG plus Q, and DG plus RuIII/Q. Antioxidant enzymes (SOD, CAT, GPx, and GRx), markers of lipid peroxidation (such as MDA), expression of genes (namely Nrf2, Cu-ZnSOD, CAT, GPx, cyto c, P53, Bax, BCl2, caspase-3, and caspase-9 in testicular tissue), glutamate, 4-hydroxynonenal (HNE), GSH, HCY, amyloid beta, and GABA levels were evaluated in brain tissues. Cytokines, such as IL-6 and TNF-α, histological and ultrastructural studies were estimated in both the brain and testicular tissues, while the comet assay was performed in the brain tissue. RuIII/Q administration either alone or combined with DG reduced oxidative injury to normal levels and decreased apoptotic activities. Thus, RuIII/Q inhibited injury in both the testis and brain and reduced oxidative stress in male rats. The (RuIII/Q) complex has a potent ameliorative effect against aging neurotoxicity, reproductive toxicity, and antihepatic cancer activity induced by D-galactose (DG).

ACS Style

Moamen Refat; Reham Hamza; Abdel Adam; Hosam Saad; Adil Gobouri; Fawziah Al-Salmi; Tariq Altalhi; Samy El-Megharbel. Potential Therapeutic Effects of New Ruthenium (III) Complex with Quercetin: Characterization, Structure, Gene Regulation, and Antitumor and Anti-Inflammatory Studies (RuIII/Q Novel Complex Is a Potent Immunoprotective Agent). Crystals 2021, 11, 367 .

AMA Style

Moamen Refat, Reham Hamza, Abdel Adam, Hosam Saad, Adil Gobouri, Fawziah Al-Salmi, Tariq Altalhi, Samy El-Megharbel. Potential Therapeutic Effects of New Ruthenium (III) Complex with Quercetin: Characterization, Structure, Gene Regulation, and Antitumor and Anti-Inflammatory Studies (RuIII/Q Novel Complex Is a Potent Immunoprotective Agent). Crystals. 2021; 11 (4):367.

Chicago/Turabian Style

Moamen Refat; Reham Hamza; Abdel Adam; Hosam Saad; Adil Gobouri; Fawziah Al-Salmi; Tariq Altalhi; Samy El-Megharbel. 2021. "Potential Therapeutic Effects of New Ruthenium (III) Complex with Quercetin: Characterization, Structure, Gene Regulation, and Antitumor and Anti-Inflammatory Studies (RuIII/Q Novel Complex Is a Potent Immunoprotective Agent)." Crystals 11, no. 4: 367.

Journal article
Published: 29 March 2021 in Molecules
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The development of new materials is needed to address the environmental challenges of wastewater treatment. The phosphorylation of guar gum combined with its association to chitosan allows preparing an efficient sorbent for the removal of U(VI) from slightly acidic solutions. The incorporation of magnetite nanoparticles enhances solid/liquid. Functional groups are characterized by FTIR spectroscopy while textural properties are qualified by N2 adsorption. The optimum pH is close to 4 (deprotonation of amine and phosphonate groups). Uptake kinetics are fast (60 min of contact), fitted by a pseudo-first order rate equation. Maximum sorption capacities are close to 1.28 and 1.16 mmol U g−1 (non-magnetic and magnetic, respectively), while the sorption isotherms are fitted by Langmuir equation. Uranyl desorption (using 0.2 M HCl solutions) is achieved within 20–30 min; the sorbents can be recycled for at least five cycles (5–6% loss in sorption performance, complete desorption). In multi-component solutions, the sorbents show marked preference for U(VI) and Nd(III) over alkali-earth metals and Si(IV). The zone of exclusion method shows that magnetic sorbent has antibacterial effects against both Gram+ and Gram- bacteria, contrary to non-magnetic material (only Gram+ bacteria). The magnetic composite is highly promising as antimicrobial support and for recovery of valuable metals.

ACS Style

Mohammed F. Hamza; Amr Fouda; Khalid Z. Elwakeel; Yuezhou Wei; Eric Guibal; Nora A. Hamad. Phosphorylation of Guar Gum/Magnetite/Chitosan Nanocomposites for Uranium (VI) Sorption and Antibacterial Applications. Molecules 2021, 26, 1920 .

AMA Style

Mohammed F. Hamza, Amr Fouda, Khalid Z. Elwakeel, Yuezhou Wei, Eric Guibal, Nora A. Hamad. Phosphorylation of Guar Gum/Magnetite/Chitosan Nanocomposites for Uranium (VI) Sorption and Antibacterial Applications. Molecules. 2021; 26 (7):1920.

Chicago/Turabian Style

Mohammed F. Hamza; Amr Fouda; Khalid Z. Elwakeel; Yuezhou Wei; Eric Guibal; Nora A. Hamad. 2021. "Phosphorylation of Guar Gum/Magnetite/Chitosan Nanocomposites for Uranium (VI) Sorption and Antibacterial Applications." Molecules 26, no. 7: 1920.

Journal article
Published: 28 March 2021 in Agriculture
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Salvadora persica is the most used medicinal shrub in the Arab world. This experiment was conducted to evaluate seedling performance at different rates of NPK. Seedlings were treated with N:P:K at 4:2:2 (N:P:K 2:2:2 g + 2 g of nitrogen supplemented as ammonium sulfate), 6:3:3 (N:P:K 3:3:3 g + 3 g of nitrogen supplemented as ammonium sulfate), 2:1:1S (N:P:K 1:1:1 g + 1 g of nitrogen supplemented as ammonium sulfate), 2:1:1U (N:P:K 1:1:1 g + 1 g of nitrogen supplemented as urea), 4:1:1S (N:P:K 1:1:1 g + 3 g of nitrogen supplemented as ammonium sulfate), 4:1:1U (N:P:K 1:1:1 g + 3 g of nitrogen supplemented as urea), 6:1:1S (N:P:K 1:1:1 g + 5 g of nitrogen supplemented as ammonium sulfate), 6:1:1U (N:P:K 1:1:1 g + 5 g of nitrogen supplemented as urea) in addition to the control. The results indicated that NPK application significantly affected the vegetative and root growth parameters and the chemical contents. Among the various treatments of NPK, the application of 6:3:3 rates showed the highest values for aboveground parts, root parameters, and greenness level. Therefore, the present study demonstrates the optimum NPK levels that can enhance seedling growth throughout the nursery period.

ACS Style

Fawzy Lasheen; Ahmed Negm; Soheir Hassan; Ehab Azab; Adil Gobouri; Mohammed Hewidy. Nitrogen, Phosphorous, and Potassium Application Rate on the Young Seedling Growth of Salvadora persica. Agriculture 2021, 11, 291 .

AMA Style

Fawzy Lasheen, Ahmed Negm, Soheir Hassan, Ehab Azab, Adil Gobouri, Mohammed Hewidy. Nitrogen, Phosphorous, and Potassium Application Rate on the Young Seedling Growth of Salvadora persica. Agriculture. 2021; 11 (4):291.

Chicago/Turabian Style

Fawzy Lasheen; Ahmed Negm; Soheir Hassan; Ehab Azab; Adil Gobouri; Mohammed Hewidy. 2021. "Nitrogen, Phosphorous, and Potassium Application Rate on the Young Seedling Growth of Salvadora persica." Agriculture 11, no. 4: 291.

Journal article
Published: 26 March 2021 in Separations
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The pollution of freshwater resources with crude petroleum oil is a major environmental issue in oil-producing countries. As a result, the remediation of polluted aquatic ecosystems using eco-friendly and cost-effective technology is receiving increased global attention. In this study, the ability of Azolla pinnata R. Br. to remediate petroleum-polluted freshwater was assessed. The remediation potentiality was determined by evaluating the total petroleum hydrocarbon degradation percentage (TPH%) and changes in the molecular type composition of saturated and aromatic hydrocarbon fractions. TPH% was estimated gravimetrically, and changes in the molecular type composition of saturated and aromatic fractions were measured using gas chromatography and high-performance liquid chromatography, respectively. The results reveal that A. pinnata has the potential to phytoremediate freshwater polluted with low levels (up to 0.5 g/L) of petroleum hydrocarbons (PHs). After seven days of phytoremediation, the degradation rate of total PHs was 92% in the planted treatment compared with 38% in the unplanted positive control. The highest breakdown of PHs for the normal paraffinic saturated hydrocarbon fraction occurred in the presence of A. pinnata combined with Anabena azollaea (A-A), which showed a moderate degradation capacity toward total aromatic hydrocarbons (TAHs) and total polycyclic aromatic hydrocarbons (PAHs). The results indicate that A. pinnata effectively removed C18, a saturated PH, and acenaphthene (Ace), an aromatic PH. Therefore, this study suggests that A. pinnata is a useful tool for the remediation of freshwaters contaminated with low pollution levels of crude oil.

ACS Style

Aya Mostafa; Ahmad Hegazy; Nermen Mohamed; Rehab Hafez; Ehab Azab; Adil Gobouri; Hosam Saad; Azza Fattah; Yasser Mustafa. Potentiality of Azolla pinnata R. Br. for Phytoremediation of Polluted Freshwater with Crude Petroleum Oil. Separations 2021, 8, 39 .

AMA Style

Aya Mostafa, Ahmad Hegazy, Nermen Mohamed, Rehab Hafez, Ehab Azab, Adil Gobouri, Hosam Saad, Azza Fattah, Yasser Mustafa. Potentiality of Azolla pinnata R. Br. for Phytoremediation of Polluted Freshwater with Crude Petroleum Oil. Separations. 2021; 8 (4):39.

Chicago/Turabian Style

Aya Mostafa; Ahmad Hegazy; Nermen Mohamed; Rehab Hafez; Ehab Azab; Adil Gobouri; Hosam Saad; Azza Fattah; Yasser Mustafa. 2021. "Potentiality of Azolla pinnata R. Br. for Phytoremediation of Polluted Freshwater with Crude Petroleum Oil." Separations 8, no. 4: 39.

Journal article
Published: 20 March 2021 in Journal of Environmental Chemical Engineering
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Industrial wastewater treatment is one of the greatest challenges of humanity that require an increased awareness to address water scarcity worldwide. Herein, an eco-friendly and cost-effective approach was established to cope with real textile and tannery effluents via the biosynthesis of highly adsorbent magnesium oxide nanoparticles (MgO-NPs). Physicochemical characterization of as-formed MgO-NPs confirms the successful fabrication of MgO nano-rods (30 – 85 nm) and nano-rectangular (18.6 – 27.6 nm) by harnessing metabolites secreted by Aspergillus niger strain F1. Moreover, the energy dispersive spectroscopy (EDX) confirms that Mg and O are the main components in the sample with weight percentages of 41.1% and 33.6%, respectively. X-ray photoelectron spectroscopy (XPS) confirms the successful formation of MgO at different bending energies. The catalytic degradation and decolorization analyses were conducted under sunlight and dark conditions. These analyses demonstrated that the highest decolorization of real textile and tannery effluents (92.8% ± 0.06% and 97.5% ± 0.7%, respectively) was accomplished after 180 min by treatment with 1.0 mg mL-1 of MgO-NPs in the presence of sunlight. At optimum experimental conditions, the quality of treated effluents was monitored by the reduction of total suspended solid (TSS), total dissolved solid (TDS), and chemical oxygen demand (COD) levels at the percentages of 86.9% ± 0.8%, 77.0% ± 0.8%, and 89.3% ± 0.9%, respectively, for textile effluent and the percentages of 94.3% ± 1.6%, 80.7% ± 1.6%, and 97.4% ± 0.9% respectively, for tannery effluent. The reusability of MgO-NPs showed its activity for textile effluents treatment for four cycles. Biosynthesized MgO-NPs showed a high adsorption capacity for predominant tannery heavy metals, namely, Cr, Co, Pb, Cd, and Ni having removal percentages of 94.2% ± 1.2%, 63.4% ± 1.7%, 72.7% ± 1.3%, 74.1% ± 1.8%, and 70.8% ±1.5%, respectively. The toxicity of treated effluents was assessed by the germination of corn and broad bean seeds, which exhibited a decreased toxicity as compared with untreated effluents. Interestingly, the biosynthesized MgO-NPs exhibit antimicrobial activity against different pathogenic microbes and their activities were dose-dependent.

ACS Style

Amr Fouda; Saad El-Din Hassan; Ebrahim Saied; Mohammed F. Hamza. Photocatalytic degradation of real textile and tannery effluent using biosynthesized magnesium oxide nanoparticles (MgO-NPs), heavy metal adsorption, phytotoxicity, and antimicrobial activity. Journal of Environmental Chemical Engineering 2021, 9, 105346 .

AMA Style

Amr Fouda, Saad El-Din Hassan, Ebrahim Saied, Mohammed F. Hamza. Photocatalytic degradation of real textile and tannery effluent using biosynthesized magnesium oxide nanoparticles (MgO-NPs), heavy metal adsorption, phytotoxicity, and antimicrobial activity. Journal of Environmental Chemical Engineering. 2021; 9 (4):105346.

Chicago/Turabian Style

Amr Fouda; Saad El-Din Hassan; Ebrahim Saied; Mohammed F. Hamza. 2021. "Photocatalytic degradation of real textile and tannery effluent using biosynthesized magnesium oxide nanoparticles (MgO-NPs), heavy metal adsorption, phytotoxicity, and antimicrobial activity." Journal of Environmental Chemical Engineering 9, no. 4: 105346.

Journal article
Published: 17 March 2021 in Biology
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Herein, CuO-NPs were fabricated by harnessing metabolites of Aspergillus niger strain (G3-1) and characterized using UV–vis spectroscopy, XRD, TEM, SEM-EDX, FT-IR, and XPS. Spherical, crystallographic CuO-NPs were synthesized in sizes ranging from 14.0 to 47.4 nm, as indicated by TEM and XRD. EDX and XPS confirmed the presence of Cu and O with weight percentages of 62.96% and 22.93%, respectively, at varied bending energies. FT-IR spectra identified functional groups of metabolites that could act as reducing, capping, and stabilizing agents to the CuO-NPs. The insecticidal activity of CuO-NPs against wheat grain insects Sitophilus granarius and Rhyzopertha dominica was dose- and time-dependent. The mortality percentages due to NP treatment were 55–94.4% (S. granarius) and 70–90% (R. dominica). A botanical experiment was done in a randomized block design. Low CuO-NP concentration (50 ppm) caused significant increases in growth characteristics (shoot and root length, fresh and dry weight of shoot and root, and leaves number), photosynthetic pigments (total chlorophylls and carotenoids), and antioxidant enzymes of wheat plants. There was no significant change in carbohydrate or protein content. The use of CuO-NPs is a promising tool to control grain insects and enhance wheat growth performance.

ACS Style

Ali Badawy; Nilly Abdelfattah; Salem Salem; Mohamed Awad; Amr Fouda. Efficacy Assessment of Biosynthesized Copper Oxide Nanoparticles (CuO-NPs) on Stored Grain Insects and Their Impacts on Morphological and Physiological Traits of Wheat (Triticum aestivum L.) Plant. Biology 2021, 10, 233 .

AMA Style

Ali Badawy, Nilly Abdelfattah, Salem Salem, Mohamed Awad, Amr Fouda. Efficacy Assessment of Biosynthesized Copper Oxide Nanoparticles (CuO-NPs) on Stored Grain Insects and Their Impacts on Morphological and Physiological Traits of Wheat (Triticum aestivum L.) Plant. Biology. 2021; 10 (3):233.

Chicago/Turabian Style

Ali Badawy; Nilly Abdelfattah; Salem Salem; Mohamed Awad; Amr Fouda. 2021. "Efficacy Assessment of Biosynthesized Copper Oxide Nanoparticles (CuO-NPs) on Stored Grain Insects and Their Impacts on Morphological and Physiological Traits of Wheat (Triticum aestivum L.) Plant." Biology 10, no. 3: 233.