Article
Chemistry, Multidisciplinary
Alma Malibekova, Vadim Guliants
Summary: In this study, bimetallic ZVI nanoparticles containing Cu, Ni, and Co were synthesized and used for the removal of selenate ions from simulated FGD wastewater. The relationship between the structure and reactivity of bimetallic ZVI nanoparticles in Se6+ reduction was investigated through various characterization techniques and selenate reduction kinetics. The importance of the standard reduction potential difference between two metals in bimetallic ZVI for galvanic reduction and the structural characteristics in Se6+ reduction were demonstrated.
NEW JOURNAL OF CHEMISTRY
(2023)
Article
Polymer Science
Gloria Amo-Duodu, Emmanuel Kweinor Tetteh, Sudesh Rathilal, Edward Kwaku Armah, Jeremiah Adedeji, Martha Noro Chollom, Maggie Chetty
Summary: This study investigated biostimulation of anaerobic digestion of municipality wastewater using various additives, with Fe3O4 additives showing the highest efficiency in terms of biogas production. The modified Gompertz model was identified as the most reliable kinetic model for evaluating the dynamics of biogas production.
Review
Materials Science, Multidisciplinary
Anname Lourens, Anzel Falch, Rehana Malgas-Enus
Summary: The increase in population and industrial activities has led to the presence of harmful pollutants in water sources, posing a threat to future health and environmental well-being. Conventional methods to remove these pollutants are costly, have low recyclability, and low efficiency. It is important to find suitable methods to purify industrial and household wastewater. Nanoparticles, particularly magnetite NPs, have proven to be efficient in removing and degrading pollutants due to their affordability, recyclability, and easy removal with an external magnetic field. This study discusses the synthesis of magnetic core and different methods of immobilization for metal catalysts onto the surface of magnetite NPs, which enhance their absorption and degradation capabilities in wastewater treatment.
JOURNAL OF MATERIALS SCIENCE
(2023)
Article
Engineering, Environmental
MhdAmmar Hafiz, Amani Hassanein, Mohammed Talhami, Maryam AL-Ejji, Mohammad K. Hassan, Alaa H. Hawari
Summary: Forward osmosis is considered as a low-energy membrane process, but its high cost for draw solution regeneration hinders its maturity. Magnetic nanoparticles, with their high osmotic pressure and easy regeneration, have the potential to be a sustainable draw solute. However, significant development is still needed before implementing it for wastewater treatment and desalination.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Chemistry, Multidisciplinary
Giovanni Marco Saladino, Carmen Vogt, Bertha Brodin, Kian Shaker, Nuzhet Inci Kilic, Kenth Andersson, Marie Arsenian-Henriksson, Muhammet Sadaka Toprak, Hans Martin Hertz
Summary: In this study, hybrid ruthenium-decorated superparamagnetic iron oxide nanoparticles were designed as contrast agents for both magnetic resonance imaging (MRI) and X-ray fluorescence computed tomography (XFCT). These nanoparticles were synthesized through a one-pot polyol hot injection method. In vivo preclinical studies showed the possibility of correlative bioimaging using these contrast agents. The complementary nature of MRI and XFCT allowed for accurate localization and high specificity and resolution in nanoparticle detection, suggesting potential applications for early tumor diagnosis, improved long-term treatment monitoring, and enhanced radiotherapy planning.
Article
Engineering, Environmental
Eduardo Ravelo-Nieto, Sergio A. Ovalle-Serrano, Eduart A. Gutierrez-Pineda, Cristian Blanco-Tirado, Marianny Y. Combariza
Summary: In this study, a bio-nanocomposite based on cellulosic fique fibers decorated with magnetite nanoparticles was fabricated and found to have advanced oxidation capabilities. The composite material showed efficient color removal from indigo carmine solutions through heterogeneous Fenton-like reactions. Furthermore, the bio-nanocomposite demonstrated significant reductions in chemical oxygen demand, surfactant content, color, and turbidity when treating real wastewater samples.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Review
Microbiology
Suyan Pang, Ning Li, Huan Luo, Xiaonan Luo, Tong Shen, Yanan Yang, Jin Jiang
Summary: This paper provides a systematic summary of the important reactions, microbial biodiversity, and environmental factors influencing the reaction rate in Fe-driven biological nitrogen removal technology. It also presents the current application advances and typical cases in wastewater treatment.
FRONTIERS IN MICROBIOLOGY
(2022)
Article
Plant Sciences
Mengyao Wang, Takahiro Hasegawa, Marcel Beier, Makoto Hayashi, Yoshihiro Ohmori, Kenji Yano, Shota Teramoto, Takehiro Kamiya, Toru Fujiwara
Summary: Nitrate is an important nutrient and signaling molecule in plants, and OsNLP4 plays a role in regulating nitrate assimilation and nitrogen use efficiency in rice. However, the nitrate sensing system and regulatory mechanisms of nitrate-related genes in rice remain unclear.
PLANT AND CELL PHYSIOLOGY
(2021)
Review
Environmental Sciences
Nour Sh. El-Gendy, Hussein N. Nassar
Summary: This review highlights the one-pot valorization process of different waste biomass into biofunctionalized magnetite nanoparticles. It discusses the potential applications of ecofriendly BMNPs as antimicrobial agents, water disinfectants, and organic waste adsorbents. Further research is needed to understand the biological macro-and micro-molecules involved in BMNPs synthesis and its safety for environmental applications.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Plant Sciences
Ye Ji Lee, Won Je Lee, Quang Tri Le, Suk-Whan Hong, Hojoung Lee
Summary: The study demonstrates that high concentrations of nitrate can affect plant tolerance to salt stress. By increasing anthocyanin content, plants can better withstand salt stress under high nitrate conditions.
FRONTIERS IN PLANT SCIENCE
(2021)
Article
Chemistry, Multidisciplinary
Phoomipat Jungcharoen, Mathieu Pedrot, Frank Heberling, Khalil Hanna, Fadi Choueikani, Charlotte Catrouillet, Aline Dia, Remi Marsac
Summary: Magnetite nanoparticles are interesting due to their electronic, magnetic and chemical properties. Previous studies have shown that partial oxidation of magnetite nanoparticles can occur, but these transformations were only monitored under oxidizing or acidic conditions. This study found that 10 nm-sized stoichiometric magnetite particles are not stable in aqueous solutions over a biologically and environmentally relevant pH range. A thermodynamic model was developed to predict the chemical stability of these nanoparticles.
ENVIRONMENTAL SCIENCE-NANO
(2022)
Article
Chemistry, Physical
Jan Bogacki, Piotr Marcinowski, Dominika Bury, Monika Krupa, Dominika Sciezynska, Prasanth Prabhu
Summary: The study demonstrates that the H2O2/Fe3O4/Fe2O3/Fe-0 and UV/H2O2/Fe3O4/Fe2O3/Fe-0 processes are effective methods for wastewater treatment, with the UV process proving to be more effective. Chromatographic analysis can be used to detect and identify pollutants in wastewater.
Article
Biochemistry & Molecular Biology
Ana Lucia Campana, Amaimen Guillen, Ricardo Rivas, Veronica Akle, Juan C. Cruz, Johann F. Osma
Summary: This study investigates the feasibility of using functionalized substrates and nanoparticles for the removal of Cd from aqueous solution. The modified nanoparticles showed significant efficiency in Cd removal and the ability for recycling, with low toxicity. Various factors affecting adsorption, desorption, and potential toxicity effects were also explored.
Article
Green & Sustainable Science & Technology
K. Nithya, Asha Sathish, P. Senthil Kumar
Summary: The study demonstrates the feasibility of using magnetic beads to treat nickel ions in industrial wastewater systems, verifying the potential application of nano-technology in industrial systems and showcasing a low-cost synthesis method and the surface properties of a new adsorbent. Experimental results show that the magnetic beads have achieved good results in the removal of nickel ions, and detailed studies have been conducted on the effects under different conditions.
CLEAN TECHNOLOGIES AND ENVIRONMENTAL POLICY
(2021)
Article
Engineering, Environmental
Yuan Zhuang, Penglu Li, Baoyou Shi
Summary: Nitrogen-containing disinfection byproducts can be promoted by NO3 (-) in corroded iron drinking water pipes through strengthening Fe-O-C bonding and decreasing Gibbs free energy of NO3 (-) reduction.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2023)
Article
Nanoscience & Nanotechnology
Marwa Eltarahony, Sahar Zaki, Desouky Abd-El-Haleem
JOURNAL OF NANOMATERIALS
(2018)
Article
Nanoscience & Nanotechnology
Marwa Eltarahony, Sahar Zaki, Marwa ElKady, Desouky Abd-El-Haleem
JOURNAL OF NANOMATERIALS
(2018)
Article
Green & Sustainable Science & Technology
Marwa Eltarahony, Sahar Zaki, Zeinab Kheiralla, Desouky Abd-El-Haleem
CLEAN-SOIL AIR WATER
(2019)
Article
Multidisciplinary Sciences
Marwa Eltarahony, Sahar Zaki, Desouky Abd-El-Haleem
SCIENTIFIC REPORTS
(2020)
Article
Biochemistry & Molecular Biology
Marwa Eltarahony, Amany Ibrahim, Hadeel El-shall, Eman Ibrahim, Fayez Althobaiti, Eman Fayad
Summary: Lake Mariout in Egypt is a polluted coastal marine ecosystem where indigenous microbial populations have developed advantageous traits to deal with effluents. In this study, two Streptomyces strains from the lake's sediment were found to have antagonistic activity through the production of bioactive metabolites and the bioreduction of AgNO3. The AgNPs synthesized by these strains showed potent bactericidal and fungicidal activity, especially when combined with their bioactive metabolites, demonstrating a synergistic efficiency against various pathogens.
Article
Biotechnology & Applied Microbiology
Marwa Eltarahony, Ayman Kamal, Sahar Zaki, Desouky Abd-El-Haleem
Summary: This study successfully removed lead and mercury using fungal and bacterial strains with high ureolytic activity, and characterized the precipitates using EDX, SEM and XRD, achieving detoxification and sequestration of heavy metals.
JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY
(2021)
Article
Pharmacology & Pharmacy
Marwa M. Abu-Serie, Marwa Eltarahony
Summary: Developing soluble and stable nanoformulation of antitumor copper complex CD is desired. CD nanoparticles were successfully formulated using bacterially and green chemically prepared copper oxide nanoparticles. Chemical CO NPs showed higher homogeneity and outperformed Bio CD NPs in terms of anticancer efficacy.
INTERNATIONAL JOURNAL OF PHARMACEUTICS
(2021)
Article
Biology
Amany Ibrahim, Esmail M. El-Fakharany, Marwa M. Abu-Serie, Marwa F. ElKady, Marwa Eltarahony
Summary: An efficient immobilized bacterial consortium of Raoultella planticola, Ochrobactrum thiophenivorans, Bacillus flexus, and Staphylococcus xylosus was used to degrade methyl orange (MO) under high salinity conditions. The biodegradation efficiency was confirmed by various analyses. The cytotoxicity of the metabolic byproducts was evaluated on human cell lines. Additionally, the immobilized consortium showed synergistic interaction with indigenous microorganisms in degrading MO in contaminated effluents.
Article
Biology
Doaa Fayez, Asmaa Youssif, Soraya Sabry, Hanan Ghozlan, Marwa Eltarahony
Summary: This study isolated and purified halophilic carotenoid-producing bacteria from Wadi El-Natrun salt lakes, achieving maximum productivity through optimized conditions. The carotenoids showed broad bioactivity and antimicrobial abilities, indicating potential medical and industrial applications.
Article
Marine & Freshwater Biology
Howaida Hassan, Marwa Eltarahony, Gadallah Abu-Elreesh, Hanan M. Abd-Elnaby, Soraya Sabry, Hanan Ghozlan
Summary: This study isolated luminous bacteria from an Octopus in Alexandria, Egypt, and utilized their glowing properties as a potential biosensor for toxicity assessment. The study identified yeast extract, glycerol, pep-tone, and NaCl as the most important factors affecting luminescence production. The research highlights the significance of monitoring toxicity in real polluted environmental and effluent samples.
EGYPTIAN JOURNAL OF AQUATIC RESEARCH
(2023)