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International Journal of Molecular Sciences 22:5096, 2021
This article is an open access article distributed under the terms and conditions of the Creative... more This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY
Clarivate , 2019
Pseudomonas aeruginosa is considered as the most potent bacterial strain for solving heavy metals... more Pseudomonas aeruginosa is considered as the most potent bacterial strain for solving heavy metals pollution problems. Pollution is the most of problems in our world which causing a lot of risks to human, animal, plant and ecosystem. Heavy metals pollution is an ever-increasing problem in developing nations. Release of heavy metals into the environment has increased in the recent years at an alarming rate. To remove heavy metals from environment, there are different methods such as physical, chemical and biological. The biological method includes microorganisms and plant which recorded high heavy metals removal, safe and low-cost method. Microorganisms remove heavy metals from environment by different mechanisms according to their types. Thus, microbes are used as potential candidates of bioremediation that can adapt quickly to the changing noxious environment and be utilized for toxic metal remediation. In bacterial uptake and tolerance to heavy metals, Pseudomonas aeruginosa recorded potential role in bioremediation of different heavy metals with high removal percentage comparison with other bacterial strains. Chapter discusses the roles and trends of Pseudomonas aeruginosa in heavy metals tolerance and uptake as potential bacterial strain.
Clarivate , 2020
Wastes are produced at large amounts all over the world. These wastes cause a variety of problems... more Wastes are produced at large amounts all over the world. These wastes cause a variety of problems to the ecosystem, plants, animals, and humans. In this chapter, we discuss the wastes, types of wastes, sources of wastes, and problems related to wastes, especially health-related problems. Then we discuss agricultural wastes and how we can synthesize different nanoparticles from them. Also, we discuss industrial wastes and different nanoparticles synthesized from them. Additionally, we discuss fruit wastes and production of different nanoparticles and also food wastes and their uses in nanoparticle syntheses. Also, we can use other wastes to produce nanoparticles. In applications section, we discuss the use of different nanoparticles produced in agriculture, removal of heavy metals and pollutants from environment, industry and finally medical applications. We will finish our chapter with the topic of healthy and safe synthesis of nanoparticles produced by different wastes and then conclusion.
Clarivate, 2020
Cystic fibrosis (CF) is a multisystem genetic disease caused by mutations in the cystic fibrosis ... more Cystic fibrosis (CF) is a multisystem genetic disease caused by mutations in the cystic fibrosis transmembrane conductance regulator (CFTR) gene. Microbial infection is the defined characteristics of cystic fibrosis airway disease. This infection is caused by bacteria, fungi, and viruses which increase complications leading to patient death. Additionally, bacterial pathogens including Haemophilus influenza, Staphylococcus aureus, Pseudomonas aeruginosa, nontuberculous mycobacterium (NTM) species, and MRSA are attributed to pulmonary infections. Subsequently, fungal pathogens such as Candida sp. and filamentous fungi such as Aspergillus fumigatus can also lead to pulmonary infections. On the other hand, Pseudomonas aeruginosa is the most common bacterial pathogen leading to complications in CF distal airways disease. Also, Aspergillus fumigatus can lead to aspergillus lung diseases including allergic bronchopulmonary aspergillosis and aspergilloma formation. Control of pathogenic microorganisms associated with cystic fibrosis may prevent pulmonary complications and has the potential to improve the prognosis of this life-limiting disease.
The present study aims to identify novel fungal Species that have tolerant potential to tolerate ... more The present study aims to identify novel fungal Species that have tolerant potential to tolerate a high concentration of heavy metals especially, (Cd) and their potent efficacy to uptake it. So, thirty-six polluted soil samples were collected from 12 different localities, including industrial, as fertilizers, pesticides, cement and coke, and agricultural from Sharkya, Menofya and Qaliubya governments in Egypt. Total content of heavy metals as, (Cd) were measured /ppm. by Flame Atomic Absorption Spectroscopy (FAAS) and the results showed a high cadmium concentration, as high as the above of the international standards especially in industrial polluted soils samples. Also, total fungal colonies count was measured using plate count technique and the results showed a significant distribution of fungal isolates, as 64 fungal isolates were isolated at cadmium concentration of 100 ppm. and screened for further other high concentrations, (200, 300, 400, 500, 600, 700, 800, 900 and 1000 ppm). Any way results showed that the growth of fungal isolates recorded zero at 800 ppm meanwhile at 700 ppm, growth was observed for 23 fungal isolates. Amazingly, both Maximum Tolerance Concentration (MTC) and Minimum Inhibitory Concentration (MIC) were recorded using agar well method and result showed that 5 fungal isolates were tolerated up to 780 ppm. Tolerance Index % were also measured and results recorded that the most potent fungal isolate have a high cadmium Tolerance Index was 66.76%. By using of macroscopic, microscopic and molecular techniques then blast on nNCBI, the most potent fungal isolates were identified as Aspergillus niger with international accession number on gene bank. Moreover, the effect of cadmium high concentrations on tested fungal morphology was observed using Scanning Electron Microscope (SEM) and examination showed a less effects on conidiophore and conidia.
Composting is one of the most successful biological processes for treatment of wastes residues. M... more Composting is one of the most successful biological processes for treatment of wastes residues. Microorganism’s activity during composting of waste materials were influenced by initial carbon/nitrogen ratios and physicochemical changes, e.g., electrical conductivity, temperature, pH, organic matter (OM) degradation, and total nitrogen (TN) losses. Compost heap was formed from mixture of rice straw, sugar beet straw and chicken manure. Also, total count of bacteria, fungi, actinomycetes, detection of pathogenic bacteria such as total and faecal coliform bacteria and salmonella were determined. Some physical and chemical analysis of compost during process was determined to determine compost maturity such as phytotoxicity and nitrification index. Thermophilic phase during composting process was decreased numbers of pathogenic microorganisms and after one month disappeared. Also, at the end of process E.C values were decreased after 4 months and germination index recorded 88.1% for maturity of compost.
International Journal of Molecular Sciences 22:5096, 2021
This article is an open access article distributed under the terms and conditions of the Creative... more This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY
Clarivate , 2019
Pseudomonas aeruginosa is considered as the most potent bacterial strain for solving heavy metals... more Pseudomonas aeruginosa is considered as the most potent bacterial strain for solving heavy metals pollution problems. Pollution is the most of problems in our world which causing a lot of risks to human, animal, plant and ecosystem. Heavy metals pollution is an ever-increasing problem in developing nations. Release of heavy metals into the environment has increased in the recent years at an alarming rate. To remove heavy metals from environment, there are different methods such as physical, chemical and biological. The biological method includes microorganisms and plant which recorded high heavy metals removal, safe and low-cost method. Microorganisms remove heavy metals from environment by different mechanisms according to their types. Thus, microbes are used as potential candidates of bioremediation that can adapt quickly to the changing noxious environment and be utilized for toxic metal remediation. In bacterial uptake and tolerance to heavy metals, Pseudomonas aeruginosa recorded potential role in bioremediation of different heavy metals with high removal percentage comparison with other bacterial strains. Chapter discusses the roles and trends of Pseudomonas aeruginosa in heavy metals tolerance and uptake as potential bacterial strain.
Clarivate , 2020
Wastes are produced at large amounts all over the world. These wastes cause a variety of problems... more Wastes are produced at large amounts all over the world. These wastes cause a variety of problems to the ecosystem, plants, animals, and humans. In this chapter, we discuss the wastes, types of wastes, sources of wastes, and problems related to wastes, especially health-related problems. Then we discuss agricultural wastes and how we can synthesize different nanoparticles from them. Also, we discuss industrial wastes and different nanoparticles synthesized from them. Additionally, we discuss fruit wastes and production of different nanoparticles and also food wastes and their uses in nanoparticle syntheses. Also, we can use other wastes to produce nanoparticles. In applications section, we discuss the use of different nanoparticles produced in agriculture, removal of heavy metals and pollutants from environment, industry and finally medical applications. We will finish our chapter with the topic of healthy and safe synthesis of nanoparticles produced by different wastes and then conclusion.
Clarivate, 2020
Cystic fibrosis (CF) is a multisystem genetic disease caused by mutations in the cystic fibrosis ... more Cystic fibrosis (CF) is a multisystem genetic disease caused by mutations in the cystic fibrosis transmembrane conductance regulator (CFTR) gene. Microbial infection is the defined characteristics of cystic fibrosis airway disease. This infection is caused by bacteria, fungi, and viruses which increase complications leading to patient death. Additionally, bacterial pathogens including Haemophilus influenza, Staphylococcus aureus, Pseudomonas aeruginosa, nontuberculous mycobacterium (NTM) species, and MRSA are attributed to pulmonary infections. Subsequently, fungal pathogens such as Candida sp. and filamentous fungi such as Aspergillus fumigatus can also lead to pulmonary infections. On the other hand, Pseudomonas aeruginosa is the most common bacterial pathogen leading to complications in CF distal airways disease. Also, Aspergillus fumigatus can lead to aspergillus lung diseases including allergic bronchopulmonary aspergillosis and aspergilloma formation. Control of pathogenic microorganisms associated with cystic fibrosis may prevent pulmonary complications and has the potential to improve the prognosis of this life-limiting disease.
The present study aims to identify novel fungal Species that have tolerant potential to tolerate ... more The present study aims to identify novel fungal Species that have tolerant potential to tolerate a high concentration of heavy metals especially, (Cd) and their potent efficacy to uptake it. So, thirty-six polluted soil samples were collected from 12 different localities, including industrial, as fertilizers, pesticides, cement and coke, and agricultural from Sharkya, Menofya and Qaliubya governments in Egypt. Total content of heavy metals as, (Cd) were measured /ppm. by Flame Atomic Absorption Spectroscopy (FAAS) and the results showed a high cadmium concentration, as high as the above of the international standards especially in industrial polluted soils samples. Also, total fungal colonies count was measured using plate count technique and the results showed a significant distribution of fungal isolates, as 64 fungal isolates were isolated at cadmium concentration of 100 ppm. and screened for further other high concentrations, (200, 300, 400, 500, 600, 700, 800, 900 and 1000 ppm). Any way results showed that the growth of fungal isolates recorded zero at 800 ppm meanwhile at 700 ppm, growth was observed for 23 fungal isolates. Amazingly, both Maximum Tolerance Concentration (MTC) and Minimum Inhibitory Concentration (MIC) were recorded using agar well method and result showed that 5 fungal isolates were tolerated up to 780 ppm. Tolerance Index % were also measured and results recorded that the most potent fungal isolate have a high cadmium Tolerance Index was 66.76%. By using of macroscopic, microscopic and molecular techniques then blast on nNCBI, the most potent fungal isolates were identified as Aspergillus niger with international accession number on gene bank. Moreover, the effect of cadmium high concentrations on tested fungal morphology was observed using Scanning Electron Microscope (SEM) and examination showed a less effects on conidiophore and conidia.
Composting is one of the most successful biological processes for treatment of wastes residues. M... more Composting is one of the most successful biological processes for treatment of wastes residues. Microorganism’s activity during composting of waste materials were influenced by initial carbon/nitrogen ratios and physicochemical changes, e.g., electrical conductivity, temperature, pH, organic matter (OM) degradation, and total nitrogen (TN) losses. Compost heap was formed from mixture of rice straw, sugar beet straw and chicken manure. Also, total count of bacteria, fungi, actinomycetes, detection of pathogenic bacteria such as total and faecal coliform bacteria and salmonella were determined. Some physical and chemical analysis of compost during process was determined to determine compost maturity such as phytotoxicity and nitrification index. Thermophilic phase during composting process was decreased numbers of pathogenic microorganisms and after one month disappeared. Also, at the end of process E.C values were decreased after 4 months and germination index recorded 88.1% for maturity of compost.