Article
Horticulture
Mohssen Elbagory, Diaa K. Farrag, Ahmed M. Hashim, Alaa El-Dein Omara
Summary: The study suggests that the combined application of biochar and P. stutzeri can effectively mitigate Cd toxicity, significantly improving plant growth and physiological characteristics, and reducing Cd accumulation in soil.
Article
Green & Sustainable Science & Technology
Liey-Si Wong-Pinto, Ana Mercado, Guillermo Chong, Pablo Salazar, Javier I. Ordonez
Summary: Nanotechnology studies the behavior of materials on a nanometric scale and proposes biological routes as an alternative method for energy-saving and pollution reduction. By using real effluent for biosynthesis, copper recovery was achieved with different streams of nanoparticles.
JOURNAL OF CLEANER PRODUCTION
(2021)
Article
Biotechnology & Applied Microbiology
Anahita Hosseini Zabet, Salman Ahmady-Asbchin
Summary: In this study, cadmium and nickel resistant bacteria were isolated from an industrial factory in Iran, and their biosorption efficiency was optimized using single-factor and central composite design methods. The analysis revealed that under the conditions of pH 7.0, 45 degrees C, and 1.5 g/L biomass dose, the biosorption efficiency for cadmium and nickel by the bacteria reached 92.43% and 88.45% respectively. The study also confirmed the adsorption of heavy metal ions by the bacterial biomass through Fourier transform infrared spectroscopy, scanning electron microscopy, and energy-dispersive X-ray spectroscopy.
WORLD JOURNAL OF MICROBIOLOGY & BIOTECHNOLOGY
(2023)
Article
Multidisciplinary Sciences
Sweta Parimita Bera, S. K. Tank
Summary: The study investigated the degradation of textile azo dye Procion Red-H3B by Pseudomonas stutzeri SPM-1 isolated from textile wastewater dumping sites in Surat, Gujarat. The optimized conditions led to rapid and efficient decolorization of the dye, along with significant reductions in COD, BOD, and TOC levels in the effluent. The strain exhibited high activities of azoreductase, laccase, and NADH-DCIP reductase, indicating evidence for reductive cleavage of the dye.
SCIENTIFIC REPORTS
(2021)
Article
Agricultural Engineering
Zhichao Tian, Nan Zhou, Wenbo You, Da He, Fang Chang, Maosheng Zheng
Summary: This study demonstrates that bioaugmentation using aerobic denitrifying bacteria immobilized on polyurethane biocarriers in an oxidation ditch can effectively reduce N2O emissions. The bioaugmentation promotes a symbiotic relationship between bacterial populations on activated sludge and biocarriers, enhancing the genetic potential for NO and N2O reduction in the system.
BIORESOURCE TECHNOLOGY
(2021)
Article
Engineering, Environmental
Fang Yang, Hongxian Jian, Cuiping Wang, Yu Wang, Erhu Li, Hongwen Sun
Summary: The research showed that different biochar can enhance the biodegradation of antibiotics, resulting in increased degradation efficiencies with higher biochar concentrations, by affecting microbial growth, altering the composition of fatty acids, and increasing gene expression levels.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Engineering, Environmental
Shin-Ichi Miyashita, Toshihiko Ogura, Takahiro Kondo, Shin-Ichiro Fujii, Kazumi Inagaki, Yoshio Takahashi, Ayumi Minoda
Summary: The study shows that lyophilized Galdieria sulphuraria cells can effectively adsorb gold with strong selectivity and easy recovery, providing important insights for the cheap and eco-friendly recovery of gold from acidic wastewater.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Biochemistry & Molecular Biology
Ilse Sanchez-Lozano, Luz Clarita Munoz-Cruz, Claire Hellio, Christine J. Band-Schmidt, Yair Cruz-Narvaez, Elvia Becerra-Martinez, Claudia J. Hernandez-Guerrero
Summary: This study shows that biosurfactants produced by Bacillus have potential in inhibiting biofilm formation, and they can change the concentration of metabolites in Pseudomonas stutzeri biofilms. The addition of biosurfactants can induce metabolic changes in both planktonic cells and biofilms, potentially related to osmotic stress and antibacterial effects.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Materials Science, Multidisciplinary
Qi Fu, Jin Xu, Boxin Wei, Qingyu Qin, Yunlong Bai, Changkun Yu, Cheng Sun
Summary: The effects of Desulfovibrio desulfurican (D. desulfurican) and Pseudomonas stutzeri (P. stutzeri) on the biocorrosion of X80 pipeline steel were investigated for different concentrations of nitrate and nitrite. The results indicated that both nitrate and nitrite treatments significantly reduced the number of D. desulfurican cells, with nitrite exhibiting a stronger inhibition effect. Moreover, nitrite treatment formed gamma-Fe2O3 passivation films on the surface of the steel, inhibiting the formation of erosion pits. Additionally, nitrite also led to a significant decrease in FeS content, which helped to reduce corrosion.
Article
Green & Sustainable Science & Technology
Yanluo Xie, Nan He, Mingyang Wei, Tingyao Wen, Xitong Wang, Huakang Liu, Shiqiang Zhong, Heng Xu
Summary: The bacterium strain KC6, identified as Bacillus subtilis, exhibited high resistance to Cd and was able to produce siderophores and solubilize phosphate. KC6 showed strong Cd removal ability under optimal conditions, with Cd bonding onto cell walls and being transported into cellular organs and cytoplasm. Low molecular weight organic acids produced under Cd stress significantly increased, aiding in chelating Cd to Cd-ligands complexes for better removal efficiency.
JOURNAL OF CLEANER PRODUCTION
(2021)
Article
Microbiology
Peng Li, Wenfeng Yuan, Yitie Huang, Caiyu Zhang, Chide Ni, Qi Lin, Zhihuang Zhu, Jianxin Wang
Summary: Pseudomonas stutzeri S116 can generate excellent electricity as bioanode and biocathode in microbial fuel cells. Through genome sequencing and experiments, it was found that this strain may rely on redox mediators secretion to perform in MFCs, and has the potential to efficiently treat wastewater containing sulfide and nitrite.
Article
Plant Sciences
Olivia Spain, Martin Plohn, Christiane Funk
Summary: Heavy metals in industrial wastewaters pose a serious threat to the environment and human health. Microalgae are increasingly being recognized as potential solutions for removing pollutants through biosorption due to their unique cell wall structure. The review focuses on the composition and structure of microalgae cell walls in heavy metal removal, as well as commonly used models to predict the velocity and capacity of biosorption by microalgae.
PHYSIOLOGIA PLANTARUM
(2021)
Article
Chemistry, Physical
Weilai Fu, Qiang Wang, Shuhui Chen, Yunshuang Wang, Yaru Wang, Peifeng Duan, Ganfeng Yi, Chao Liu, Xian Zhang, Zhiming Rao
Summary: This study isolated a strain of Pseudomonas stutzeri from aquaculture sludge, which efficiently degrades nitrite. By optimizing the degradation conditions, the strain achieved a nitrite removal rate of 98.67%.
Article
Microbiology
Lei Li, Yun Yang Wan, Hong Mei Mu, Sheng Bao Shi, Jian Fa Chen
Summary: This study for the first time reported the impact of illite on heavy oil biodegradation. It found that illite selectively stimulated the degradation of certain aromatic hydrocarbons and observed the biogenic kaolinization of illite in heavy oil.
Article
Engineering, Chemical
Hongya Hou, SiYu Li, ZhiChao Meng, Zhiqiang Li, Osama M. Darwesh, Huijie Zheng
Summary: This study used rhamnolipids from Pseudomonas aeruginosa as biosorbents to effectively remove heavy metal pollutants, specifically Cu ions, from synthetic wastewater. The combination of foam separation and biosorption proved to be a novel and effective technology.
CHEMICAL ENGINEERING & TECHNOLOGY
(2022)
Article
Energy & Fuels
Shah Faisal, El-Sayed Salama, Sedky H. A. Hassan, Byong-Hun Jeon, Xiangkai Li
Summary: This study utilized low-density polyethylene (LDPET) and high-density polyethylene (HDPET) as plastic carriers to support biofilm formation during anaerobic co-digestion, with HDPET showing more effectiveness. The addition of HDPET significantly increased substrate utilization and biomethane production, especially in reactors containing ternary substrates.
BIOMASS CONVERSION AND BIOREFINERY
(2022)
Article
Agriculture, Multidisciplinary
Ramadan A. Mohamed, Osama A. Al-Bedak, Sedky H. A. Hassan
Summary: A severe vascular pomegranate wilt caused by Fusarium oxysporum was reported for the first time in Upper Egypt. Pathogen was isolated from an infected farm and showed high pathogenicity in 2-year-old plants. Re-isolated pathogen exhibited the same morphological characters as the original isolates.
JOURNAL OF PLANT DISEASES AND PROTECTION
(2021)
Article
Chemistry, Multidisciplinary
Majid Mohammadi, Mehdi Sedighi, Rajamohan Natarajan, Sedky Hassan Aly Hassan, Mostafa Ghasemi
Summary: In this study, oilfield produced water was treated in a microbial fuel cell (MFC) using response surface methodology and central composite design (RSM/CCD) to optimize the process. The effects of two parameters, SPEEK and nanocomposite (CNT/Pt), on COD removal and power generation were discussed, with XRD, SEM, TEM, and NMR used for analysis. Results showed that under optimized conditions of DS=80 and CNT/Pt of 14 wt% CNT- 86 wt% Pt, the MFC could remove 92% of COD and generate 545 mW/m(2) of power density.
KOREAN JOURNAL OF CHEMICAL ENGINEERING
(2021)
Article
Multidisciplinary Sciences
Mustafa A. Fawzy, Hadeer Darwish, Sarah Alharthi, Mayasar Al-Zaban, Ahmed Noureldeen, Sedky H. A. Hassan
Summary: The biosorption of Cd2+ ions from aqueous solutions by immobilized Turbinaria ornata biomasses was studied, and it was found to have a higher removal efficiency compared to free cells. The immobilized cells showed a maximum biosorption capacity for Cd2+ ions and followed pseudo-second-order and Elovich kinetic models. Additionally, the biosorption process is controlled by film diffusion followed by intra-particle diffusion. SEM/EDX and FTIR analyses confirmed the binding of Cd2+ ions onto the algal surface and the involvement of various functional groups in the biosorption process.
SCIENTIFIC REPORTS
(2022)
Article
Green & Sustainable Science & Technology
Mayasar I. Al-Zaban, Nada K. Alharbi, Fawziah M. Albarakaty, Sarah Alharthi, Sedky H. A. Hassan, Mustafa A. Fawzy
Summary: This study investigated the biosorption of methyl violet 2B dye onto brown seaweed Cystoseira tamariscifolia biomass. The optimal biosorption conditions were determined and the data were interpreted using thermodynamic, isothermal, and kinetic models. The results suggest that C. tamariscifolia is a sustainable biosorbent for dye removal.
Article
Chemistry, Physical
Mostafa A. Al-Hakkani, Gamal M. Gouda, Sedky H. A. Hassan, Mahmoud M. A. Mohamed, Adham M. Nagiub
Summary: The current study evaluates the adsorption performance of biofabricated α-HNPs for the removal of Cfx drug from pharmaceutical wastewater. The results show that α-HNPs have strong adsorption capacity for the drug and exhibits inhibitory effects on various bacteria and cancer cells, indicating their potential therapeutic value.
SURFACES AND INTERFACES
(2022)
Article
Biology
Nada K. Alharbi, Mayasar Al-Zaban, Fawziah M. Albarakaty, Sayed F. Abdelwahab, Sedky H. A. Hassan, Mustafa A. Fawzy
Summary: The aim of this study was to evaluate the efficiency of Spirulina platensis in removing Zn2+ ions from aqueous solutions. The results showed that under optimized conditions, up to 97.90% of Zn2+ was successfully removed by S. platensis, indicating a good agreement between experimental data and model predictions. The biosorption process of Zn2+ was found to be well characterized by the pseudo-second-order kinetic model, suggesting a chemical nature of the adsorption process. The Langmuir and Dubinin-Radushkevich isotherm models were found to best fit the equilibrium data, with a maximum adsorption capacity of 50.7 mg/g. Thermodynamic analysis revealed that the biosorption of Zn2+ was endothermic, spontaneous, and feasible. Additionally, FTIR, SEM, and EDX investigations showed noticeable changes in the properties of the algal biomass during the biosorption process. Therefore, dried Spirulina biomass has been proven to be a cost-effective and efficient method for removing heavy metals, particularly zinc ions, from wastewater, making it a feasible and environmentally acceptable approach.
Article
Multidisciplinary Sciences
Mustafa A. Fawzy, Hatim M. Al-Yasi, Tarek M. Galal, Reham Z. Hamza, Tharwat G. Abdelkader, Esmat F. Ali, Sedky H. A. Hassan
Summary: In this study, Rosa damascena leaf powder was evaluated as a biosorbent for the removal of copper from aqueous solutions. The optimal conditions for copper removal were determined, and the biosorption data were well fitted to kinetic and isotherm models. The study also revealed the outstanding structural characteristics and high surface functional group availability of the biosorbent. Rose damascena leaves showed a higher adsorption capacity compared to immobilized ones. The main mechanism of interaction between the biosorbent and copper ions was determined to be both ion exchange and hydrogen bond formation.
SCIENTIFIC REPORTS
(2022)
Article
Multidisciplinary Sciences
Mostafa F. Al-Hakkani, Gamal A. Gouda, Sedky H. A. Hassan, Mahmoud M. A. Mohamed, Adham M. Nagiub
Summary: This study reported the treatment of pharmaceutical wastewater contaminated with azithromycin using biosynthesized hematite nanoparticles. The adsorption performance of the nanoparticles was evaluated, and it was found that the nanosystem exhibited antibacterial, anticancer, and antiviral activities. Furthermore, the study demonstrated the potential of the nanosystem as a drug delivery platform in the biomedical field.
SCIENTIFIC REPORTS
(2022)
Article
Multidisciplinary Sciences
Mostafa F. Al-Hakkani, Gamal A. Gouda, Sedky H. A. Hassan, Mohammed S. Saddik, Mohamed A. El-Mokhtar, Maggie A. Ibrahim, Mahmoud M. A. Mohamed, Adham M. Nagiub
Summary: The present study evaluates the photocatalytic degradation performance of biofabricated α-HNPs for the degradation of Cfm. The optimal pH for achieving the best degradation was found to be 10.5. The kinetics study revealed that the degradation reaction followed pseudo-first-order kinetics with a correlation coefficient of 0.992. The mass loading of α-HNPs was found to impact the degradation efficiency, with the maximum degradation observed at a concentration of 0.4 mg/mL. UV-Vis analysis confirmed the optical properties of α-HNPs, including a direct transition bandgap at 3.78 eV and suspension stability for 7 days. XRD, TEM, SEM, EDX, and FT-IR analyses confirmed the reusability and structural integrity of α-HNPs after Cfm degradation. The antibacterial and antiproliferative activities of α-HNPs were also investigated.
SCIENTIFIC REPORTS
(2022)
Article
Energy & Fuels
Abdel-Naser A. Zohri, Rehab M. F. Kassim, Sedky H. A. Hassan
Summary: This study investigated the effect of methylene blue as an exogenous electron mediator on the efficiency of electricity generation in a microbial fuel cell using sugarcane molasses as a substrate. The results showed that methylene blue enhanced the power generation and significantly improved COD removal.
BIOMASS CONVERSION AND BIOREFINERY
(2022)
Article
Biochemistry & Molecular Biology
Hadeer Darwish, Sarah Alharthi, Radwa A. Mehanna, Samar S. Ibrahim, Mustafa A. Fawzy, Saqer S. Alotaibi, Sarah M. Albogami, Bander Albogami, Sedky H. A. Hassan, Ahmed Noureldeen
Summary: Chemotherapy is an aggressive form of treatment that aims to destroy cancer cells, while adjuvant therapy can enhance the effectiveness of chemotherapy and help in eradicating cancer cells. The study showed that Rosa damascena callus induced by L-ascorbic acid exhibited efficient antiproliferative, anti-clonogenic, and anti-migratory effects on colorectal cancer cells, making it a potential adjuvant therapy for cancer treatment.
Article
Green & Sustainable Science & Technology
Essam Sidique, Sedky H. A. Hassan, Mohammad Mahmoud Dawoud
Summary: This study determines the distribution of radioactive isotopes in Egyptian commercial granites and ceramic tiles and assesses their potential risks to human health. The results show that the use of these materials in residential facilities is safe, as they fall within the recommended safety limits.
Article
Food Science & Technology
Yang Yang, Sedky H. A. Hassan, Mukesh Kumar Awasthi, Babu Gajendran, Monika Sharma, Min-Kyu Ji, El-Sayed Salama
Summary: This article discusses the molecular progress on algae for bioactive compound production, including genomics, transcriptomics, proteomics, and metabolomics. These advancements provide potential knowledge for future research and emphasizes the importance of molecular modifications and optimization of culture conditions in algae to produce high-yield bioactive compounds.
Article
Green & Sustainable Science & Technology
Amany G. Ibrahim, Alaa Baazeem, Mayasar I. Al-Zaban, Mustafa A. Fawzy, Sedky H. A. Hassan, Mostafa Koutb
Summary: In this study, the response surface methodology-based Box-Behnken design was used to optimize the dry biomass, lipid content, and lipid yield of the new oleaginous fungus Aspergillus carneus OQ275240. The concentrations of yeast, glucose, and phosphorus were found to have mutual impacts on the fungus growth and lipid synthesis. At the optimal concentrations, the dry biomass, lipid content, and lipid yield reached 0.024 g/50 mL, 36.20%, and 8.70 mg/50 mL, respectively. The fatty acid methyl esters (FAMEs) profile of the fungus showed the presence of palmitic acid (C16:0), stearic acid (C18:0), and oleic acid (C18:1), which are ideal for biodiesel production. The biodiesel produced from this fungus met the international specifications EN 14214 and ASTM D6751-08. These findings suggest the potential of this newly evaluated filamentous fungal strain as a high-quality biodiesel feedstock.