Article
Chemistry, Multidisciplinary
Muhammad Athar, Muhammad Fiaz, Muhammad Asim Farid, Muhammad Tahir, Muhammad Adnan Asghar, Sadaf ul Hassan, Murtaza Hasan
Summary: Photoelectrocatalysts are robust materials for energy production, and iron and manganese doping can narrow the optical band gap of Co1-(x+y)FexMnyWO4, resulting in improved electrocatalytic activity for the oxygen evolution reaction. Among the synthesized samples, CS, codoped with manganese and iron, shows the lowest onset potential and requires the lowest overpotential to achieve the target current densities.
Review
Biochemistry & Molecular Biology
Beata Tarnacka, Anna Jopowicz, Maria Maslinska
Summary: Copper, manganese, and iron are essential elements for appropriate brain development and function, but their imbalance can lead to various neurological conditions. This review focuses on neurological disorders associated with excess copper, iron, and manganese, and discusses the diagnosis and potential treatment of these disorders.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2021)
Correction
Chemistry, Multidisciplinary
Kian Yousefipour, Rasoul Sarraf-Mamoory, Shadi Mollayousefi
Summary: This study corrects the article by Kian Yousefipour et al. and presents a simple approach for synthesizing a manganese molybdate/MWCNT nanostructure composite for supercapacitor applications.
Article
Engineering, Chemical
Gokhan Polat, I. Emre Canbolat, Aytekin Uzunoglu, Hasan Kotan
Summary: The study focused on the structural and property changes of Fe/MWCNT composites during high-energy ball milling, investigating the effects of factors such as milling time, MWCNT content, and annealing temperature. The results indicated that carbide formation played a significant role in strengthening the composites.
ADVANCED POWDER TECHNOLOGY
(2021)
Article
Multidisciplinary Sciences
Dongdong Wang, Jiawei Liu, Changlai Wang, Weiyun Zhang, Guangbao Yang, Yun Chen, Xiaodong Zhang, Yinglong Wu, Long Gu, Hongzhong Chen, Wei Yuan, Xiaokai Chen, Guofeng Liu, Bin Gao, Qianwang Chen, Yanli Zhao
Summary: Cancer immunotherapy is revolutionizing oncology and the combination of nanotechnology and immunotherapy provides an opportunity to enhance antitumor immune response. This study presents a mitochondria-targeting nanoplatform, MiBaMc, which consists of Prussian blue nanoparticles derived from bacteria and shows enhanced tumor inhibition in mouse models. The findings demonstrate the potential of targeted nanoparticles in boosting antitumor immunity.
NATURE COMMUNICATIONS
(2023)
Article
Multidisciplinary Sciences
Diego R. Coelho, Flavio R. Palma, Veronica Paviani, Chenxia He, Jeanne M. Danes, Yunping Huang, Juliana C. P. Calado, Peter C. Hart, Cristina M. Furdui, Leslie B. Poole, Matthew J. Schipma, Marcelo G. Bonini
Summary: Acetylation of SOD2 changes its biochemical function from an antioxidant to a demethylase, promoting stem cell gene expression and contributing to tumor progression and metastasis.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2022)
Article
Agronomy
Tong Li, Xue-Meng Zhang, Jia-Lu Gao, Ling Wang, Liang Si, Yong-Jun Shu, Chang-Hong Guo, Yong-Cai Lai, Ying-Dong Bi, Dong-Lin Guo
Summary: In this study, a new gene called GmVIT1 was identified, which is closely related to the response of soybean plants to iron stress. The overexpression of GmVIT1 in Arabidopsis seedlings showed a reduced phytotoxic effect induced by excess Fe/Mn stress.
Article
Geosciences, Multidisciplinary
Leslie J. Robbins, Mojtaba Fakhraee, Albertus J. B. Smith, Brendan A. Bishop, Elizabeth D. Swanner, Caroline L. Peacock, Chang -Le Wang, Noah J. Planavsky, Christopher T. Reinhard, Sean A. Crowe, Timothy W. Lyons
Summary: Oxygenic photosynthesis is crucial for the existence of complex life on Earth, but determining its emergence has been challenging. Sedimentary manganese enrichments have been considered as evidence, but their relation to oxygenation has been debated. This review argues that the presence of shallow oxygenated seawater is necessary for significant sedimentary Mn enrichments, and suggests that oxygenic photosynthesis emerged hundreds of millions of years before irreversible atmospheric oxygenation.
EARTH-SCIENCE REVIEWS
(2023)
Article
Environmental Sciences
Sijiang Zhou, Zhenyan Liu, Gang Sun, Qingya Zhang, Menghua Cao, Shuxin Tu, Shuanglian Xiong
Summary: The modification of sepiolite with ferric nitrate or iron-manganese oxide enhanced its ability to reduce both Cd and As accumulation in rice. The results showed that the modified sepiolites (NIMS and FMS) had larger specific surface areas than regular sepiolite (SEP), leading to better efficiency in reducing Cd and As content in brown rice. XPS analysis revealed that FMS enhanced the adsorption and co-precipitation of Cd, and facilitated the oxidation of As(III) to As(V). Additionally, both NIMS and FMS treatments improved soil conditions and limited the transfer of As to roots, showing promise for use in reducing Cd and As accumulation in rice.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Engineering, Electrical & Electronic
Fang-Fei Xing, Xin-Yi Huang, Yi-Xin He, Dan-Dan Zeng, Xiao-Pan Chen, Li-Xue Lu, Jing Su, Xiao-Yan Lv, Yun-Fei Long, Yan-Xuan Wen
Summary: A strategy based on the surface charge and flexibility of multiwalled carbon nanotubes (MWCNT) was developed to improve the performance of MnC2O4. A rod-like mesoporous MnC2O4/MWCNT composite was prepared via simple precipitation in water. The introduced MWCNT created abundant mesopores and a three-dimensional conductive network, leading to excellent performance of the MnC2O4/MWCNT composite.
JOURNAL OF ELECTRONIC MATERIALS
(2023)
Article
Environmental Sciences
Xiang Chen, Ling Liu, Wenming Yan, Minjuan Li, Qi Li, Xiangyu He, Ziyi Zhao, Ruiyan Liu, Shunting Zhang, Yanfen Huang, Feng Jiang
Summary: In this study, CaO2 was used as a capping material to control the release of Phosphate (P) and tungsten (W) from the sediments. The results showed significant decreases in SRP and soluble W concentrations after the addition of CaO2. CaO2 adsorbed P and W mainly through chemisorption and ligand exchange mechanisms. Additionally, the addition of CaO2 also led to an increase in HCl-P and amorphous and poorly crystalline(oxyhydr)oxides bound W.
ENVIRONMENTAL RESEARCH
(2023)
Article
Chemistry, Multidisciplinary
Varinder Khepar, Radha Ahuja, Anjali Sidhu, Mahesh K. Samota
Summary: The present study investigated the effects of nanopriming with sonochemically synthesized aqua-dispersed ferrous sulfide NPs (FeS-NPs) and manganese sulfide NPs (MnS-NPs) on the physiological, pathological, and antioxidative defense parameters of rice. The nanopriming significantly improved germination percentage, seed germination index, mean germination time, dry weight, and vigor index, while reducing mortality, seed rot, and seedling blight. Furthermore, the nanoprimed seeds showed increased activity of antioxidant enzymes and higher levels of Fe and Mn in shoots and roots, confirming the incorporation of nanometals as nanonutrients for effective plant growth.
Article
Environmental Sciences
Yongchao Zhou, Wenxin Zheng, Wenming Zhang, Yiping Zhang, Lei Fang
Summary: In this study, electrocoagulation (EC) with composite scrap iron and manganese filings as an anode (Fe-Mn EC) was investigated for the efficient removal of pentavalent antimony (Sb(V)). The results showed that Fe-Mn EC enhanced the removal of Sb(V) by 11.18-17.36% compared to traditional iron electrocoagulation (Fe EC). The removal rate of Sb(V) increased with the current concentration and Mn content in the anode, but was inhibited when the Mn content exceeded 20%. Analysis of the flocs generated during Fe and Fe-Mn EC revealed that the Fe-Mn flocs had a higher Sb(V) adsorption rate and capacity compared to Fe flocs, with a structure of nanometer flakes and large internal surface areas. Thermodynamics constants indicated that adsorption was associated with monolayer physical adsorption. This study provides a new idea and potential technical support for the removal of Sb(V) by introducing composite scrap iron-manganese as an anode in electrocoagulation.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Microbiology
Bence Farkas, Hana Vojtkova, Marek Bujdos, Marek Kolencik, Martin Sebesta, Michaela Matulova, Eva Duborska, Martin Danko, Hyunjung Kim, Katerina Kucova, Zuzana Kisova, Peter Matus, Martin Urik
Summary: The study investigated the leachability of selenium from the surfaces of ferric and manganese oxides and oxyhydroxides in the presence of filamentous fungus Aspergillus niger. The fungus showed exceptional ability to extract selenium from amorphous ferric oxyhydroxides and induce biodeterioration of hausmannite in the presence of selenium. The specific outcomes regarding selenium, iron, and manganese uptake by the fungus and residual selenium concentrations in mineral phases were discussed, along with the adverse effects of bioleaching on fungal growth.
Article
Chemistry, Physical
Xue-Ting Gao, Yi-Fan Wang, Lin Fu, Rui-Xin Zhang, Rui-Min Li, Zhi-Hua Gao, Zhi-Feng Yan, Yi-Ming Liu, Wei Huang, Lei Liu, Zhi-Jun Zuo
Summary: The molybdenum carbide-based catalyst Mo2C/MWCNT shows high electrocatalytic activity and stability in the methanol oxidation reaction, with a higher current density compared to the traditional MoO2/MWCNT and MoO3/MWCNT catalysts.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Chemistry, Physical
A. M. Adam, A. K. Diab, M. Ataalla, Maged F. Alotaibi, Abdulaziz N. Alharbi, E. M. Elsehly
Summary: This article discusses the synthesis of thin films of (Bi2Se3)(1-x)(Bi2Te3) x by thermal evaporation in high vacuum and explores their crystal structure, surface morphology, and thermoelectric properties. The results show that the thin films have perfect crystallinity and nano-scalability, and exhibit a high thermoelectric effect, making them suitable for applications in waste resource recovery and environmental applications.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Engineering, Electrical & Electronic
A. M. Adam, A. K. Diab, Mohamed Tolan, Z. M. H. El-Qahtani, A. A. Refaat, Medhat A. El-Hadek, E. M. Elsehly, A. El-Khouly, Abdulaziz N. Alharbi, V Khovaylo, M. Ataalla
Summary: Thin layers of (Bi2Se3)(1-x)(Bi2Te3)(x) samples were prepared by vacuum thermal evaporation technique. The structure properties and optical properties of the synthesized films were characterized and discussed. The films exhibited growing transparency and varying optical band gap energy beyond the visible light region, and the incorporation of Bi2Te3 enhanced the light transmission in layered bismuth chalcogenides.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2022)
Article
Nanoscience & Nanotechnology
E. M. Elsehly, E. M. M. Ibrahim, Medhat A. El-Hadek, A. El-Khouly, V. Khovaylo, Z. M. Elqahtani, N. G. Chechenin, A. M. Adam
Summary: In this article, it is shown that the transport properties and thermoelectric performance of multiwall carbon nanotubes (MWCNTs) can be significantly improved by annealing. Two different samples of MWCNTs with small and large diameters were studied, and they were treated at different annealing conditions. The microstructure, defect content, and morphology of the MWCNTs before and after annealing were investigated using various techniques. Measurements of electrical conductivity, Seebeck coefficient, and thermal conductivity revealed correlations with tube diameter and annealing conditions. The thermoelectric power factor and figure of merit ZT were enhanced by annealing, particularly for the sample with the larger tube's diameter.
PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES
(2023)
Article
Materials Science, Multidisciplinary
E. M. Elsehly, A. P. Evseev, E. A. Vorobyeva, Yu. V. Balakshin, A. V. Nazarov, A. V. Stepanov, A. I. Dimitrieva, A. P. Popov, A. V. Kovalenko, D. S. Yumanov, S. Abo-Neima, N. G. Chechenin, A. A. Shemukhin
Summary: The effects of intrinsic defects and ion irradiation on the antibacterial activity of multi-walled carbon nanotubes (MWNTs) against Escherichia coli (E. coli) were investigated. Irradiated MWNTs (R-MWNTs) at a dose of 0.4 mg/ml showed the highest inhibition rate of 92.5%. The bactericidal performance of R-MWNTs was confirmed by various measurements, and their ability to separate pathogen cells from the environment was observed by transmission electron microscopy.
DIAMOND AND RELATED MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Aleksandr Khovailo, Aidar Murtazin, Evgeniy Kolesnikov, Efim Argunov, Dmitry Karpenkov, Aleksandr Shubin, Irina Bazhenova, Aleksandra Khvan, Aleksei Bogach, E. M. Elsehly
Summary: It has been suggested that single-phase half-Heusler compounds can be obtained by introducing defects to adjust the valence electrons count to 18 in structurally unstable alloys with 19 valence electrons. This approach has now been extended to Fe-V-Al and Fe-Ti-Sn full-Heusler alloys. It was found that the non-stoichiometric Fe-V-Al exists as a single-phase compound, while the non-stoichiometric Fe-Ti-Sn is a multiphase compound. The crystal structure of the studied Fe-V-Al was found to be cubic, with a slightly larger lattice parameter compared to the stoichiometric Fe2VAl full-Heusler alloy. This finding opens up new possibilities for the design of previously unknown thermoelectric Heusler alloys.
Article
Materials Science, Multidisciplinary
Mohamed Arsan Hassan, A. El-Khouly, E. M. Elsehly, Eman N. Almutib, Samah K. Elshamndy, I Serhiienko, E. Argunov, A. Sedegov, D. Karpenkov, D. Pashkova, M. Gorshenkov, A. Novitskii, A. Voronin, V Kostishyn, V Khovaylo, A. M. Adam
Summary: In this study, the structural and thermoelectric properties of two novel Heusler compounds, Hf2FeNiSb2 and Ti2FeNiSb2, were investigated. Polycrystalline samples were synthesized using arc melting and melt spinning techniques, and then consolidated by spark plasma sintering. The compounds were found to have a face centered cubic crystal structure, and SEM analysis confirmed the homogeneity and high density of the synthesized samples. The electrical conductivity, Seebeck coefficient, and thermal conductivity were measured, and the thermoelectric figure of merit was calculated for both compounds.
MATERIALS RESEARCH BULLETIN
(2023)
Article
Engineering, Environmental
Marwa H. Ashery, Emad Mahmoud Elsehly, Mohamed Elnouby, EL-Maghraby Mohamed E. L. Maghraby
Summary: The current study synthesized pristine and functionalized multi-wall carbon nanotubes (MWCNTs)/vanadium pentoxide (V2O5) nanocomposites for photocatalytic applications. The samples were characterized using various techniques, and their photocatalytic activity was evaluated for methylene blue (MB) degradation under visible light. The results showed high removal efficiencies for MB by both functionalized and pristine MWCNTs/V2O5 nanocomposites. These materials have the potential for further applications in wastewater treatment.
WATER SCIENCE AND TECHNOLOGY
(2023)
Review
Engineering, Environmental
V. Somashekar, A. Vivek Anand, V. Hariprasad, Emad M. Elsehly, Mofwe Kapulu
Summary: With the growing population and increasing water demand, exploring alternative sources of water, such as saline water, is becoming necessary. Recent advancements in saline water treatment technologies have made it possible to produce potable water from seawater and brackish water. This review provides an overview of the current state of these technologies, discusses their advantages and limitations, and highlights recent advancements in materials and techniques that have improved their energy efficiency, productivity, and cost-effectiveness. It also outlines the future directions and challenges in the field of saline water treatment.
Article
Engineering, Environmental
Ali Hussain, Ali Hasan, Shahid Sherzada, Tahir Noor, Shehzad Ahmad, Mwansa Kaoma, Emad M. Elsehly
Summary: In this study, the remedial potential of metal-resistant bacteria obtained from metal-rich wastewater was assessed. The bacteria showed high efficiency in removing metals from the wastewater, indicating their potential for environmentally friendly and cost-effective metal ion remediation strategies.
Article
Thermodynamics
Emad M. Elsehly, Adel Bandar Alruqi, Abdelmoneim El-khouly, Vlademir Khovaylo, Haifa S. Alqannas, Ahmed Hakamy, Wael M. F. Abdel-Rehim, Alaa M. Adam
Summary: In this study, the thermoelectric properties of p-type Fe2AlV0.9Ti0.1 and Fe2AlV0.9Ti0.1/CNT alloys were investigated. Carbon nanotubes (CNT) were used as dopants to enhance the thermoelectric performance. The doping of CNT effectively reduced the thermal conductivity and increased the power factor of the alloys. The Fe2AlV0.9Ti0.1/CNT samples exhibited a significantly improved figure of merit compared to Fe2AlV0.9Ti0.1. This study presents a novel technique to enhance the performance of Fe2AlV alloys.
Article
Multidisciplinary Sciences
Marwa H. Ashery, Mohamed Elnouby, E. M. EL-Maghraby, E. M. Elsehly
Summary: In this study, vanadium pentoxide nanoparticles (V2O5-NPs) were synthesized through thermal decomposition of ammonium meta-vanadate, and their photocatalytic activity and adsorption properties were investigated. The obtained V2O5-NPs exhibited a nanorod structure, with a band gap of 2.26 eV and indirect optical transitions. It was found that the V2O5-NPs showed efficient removal of methylene blue from aqueous solutions under optimal conditions of 25 ppm initial concentration, 40 ℃ temperature, 40 mg adsorbent mass, and 1 h contact time, with a removal efficiency of up to 92.4%.
BENI-SUEF UNIVERSITY JOURNAL OF BASIC AND APPLIED SCIENCES
(2023)
Article
Physics, Multidisciplinary
E. A. Vorobyeva, K. A. Bukunov, A. P. Evseev, D. K. Minnebaev, N. G. Chechenin
Summary: Raman spectrometry is widely used for analyzing multi-walled carbon nanotubes, but it can also cause local heating due to the laser beam. This study observed changes in characteristic peaks of the carbon nanotubes' spectrum by altering laser radiation power, and found that increasing the power reduced the number of defects in the nanotubes.
MOSCOW UNIVERSITY PHYSICS BULLETIN
(2022)
Article
Physics, Applied
Emad M. Elsehly, A. P. Evseev, E. A. Vorobyeva, Yu Balakshin, N. G. Chechenin, A. A. Shemukhin
Summary: The wettability and filtration efficiency of multiwalled carbon nanotubes (MWCNTs) were studied after being irradiated with Ar+ ions. High-fluence irradiated MWCNT filters (HR-MWCNTs) showed improved manganese removal and hydrophilicity.
TECHNICAL PHYSICS LETTERS
(2022)
Article
Physics, Multidisciplinary
K. A. Bukunov, E. A. Vorobyeva, N. G. Chechenin
Summary: This article discusses the analysis of Raman scattering spectra for carbon nanotubes and establishing the connection between the observed features and the distribution of structural defects. Using the spectra of multi-walled carbon nanotubes as an example, it presents a complex graphical representation of their spectral features and considers the fundamental aspects of their interpretation. The possibility of comparing the structure of different samples of this nanomaterial using Raman spectroscopy is demonstrated.
MOSCOW UNIVERSITY PHYSICS BULLETIN
(2022)
Article
Chemistry, Multidisciplinary
Emad M. Elsehly, Aml Z. Ghonim
Summary: Chemically functionalized multi-walled carbon nanotube filters show promise in improving freshwater conditions by effectively removing heavy metals. This study examines the filtration efficiency of these filters at different pH levels and investigates their effects on M. singularis.
EGYPTIAN JOURNAL OF CHEMISTRY
(2022)
