Review
Chemistry, Physical
Xue Wang, Jian-Ping Li, Yanghua Duan, Jianan Li, Hualin Wang, Xuejing Yang, Ming Gong
Summary: Urea emissions from human activity, industrial manufacture, and agricultural fertilization have caused an ecological nitrogen imbalance. Electrochemical urea oxidation reaction (UOR) has the potential to address pollution and recover energy. This comprehensive overview discusses the mechanisms, behaviors, and latest developments of UOR, as well as the prospects and challenges of this technology.
Article
Chemistry, Physical
Jitendra Shashikant Samdani, Jakkid Sanetuntikul, Sangaraju Shanmugam
Summary: The electrochemical oxidation of urea and hydrazine over self-supported Fe-doped Ni3S2/NF nanostructured material is investigated. The Fe-Ni3S2/NF-2 prepared at specific conditions shows promising results in the oxidation reactions of hydrazine and urea. The improvement in the chemical kinetics of urea and hydrazine oxidation is attributed to the synergistic effect of adsorption and fast electron transfer on Fe-Ni3S2/NF-2. This study has implications for hydrogen energy applications.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Chemistry, Analytical
Wei Song, Chaoyun Zhu, Azim Safikhani
Summary: In this study, a three-dimensional nanostructured Cu-Fe-P electrode with high electrocatalytic performance was synthesized using electrodeposition method. The electrode demonstrated low overpotential, low potential, and excellent electrocatalytic stability in electrochemical water splitting and water-urea electrolysis processes.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2022)
Article
Materials Science, Multidisciplinary
Pukhrambam Sushma Devi, Sagolsem Nonganbi Chanu, Prajnamita Dasgupta, Bhabani Sankar Swain, Bibhu Prasad Swain
Summary: In this study, rGO/PEDOT:PSS/PVP composite films with various rGO contents (0-25wt%) were synthesized, and their properties were characterized using multiple techniques. The results showed that the rGO content had an impact on the microstructure, optical properties, and electrochemical performance of the composite films.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2022)
Article
Electrochemistry
N. Lotfi, Gh Barati Darband
Summary: This study synthesized Ni-Cu-Mn alloy nano-micro dendrites using the DHBT method and investigated their activity for urea oxidation reaction and hydrogen evolution reaction. Replacing the oxidation reaction with urea oxidation reaction can significantly reduce the cell potential in the hydrogen production process, while improving electrocatalytic stability.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2022)
Article
Chemistry, Analytical
Liwei Bai, Yufen Shi, Xue Zhang, Xiaowei Cao, Jianhua Jia, Huanhuan Shi, Wenbo Lu
Summary: Coronavirus disease 2019 (COVID-19) is caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) and is a super amplifier of basic diseases. This article presents an electrochemical immunosensor based on polyaniline functionalized NiFeP nanosheet arrays and Au/Cu2O nanocubes as a signal amplifier for the detection of SARS-CoV-2 nucleocapsid protein (SARS-CoV-2 NP). The immunosensor shows a wide linear range, low detection limit, selectivity, repeatability, stability, and excellent analytical performance in human serum samples, suggesting its potential for personalized point-of-care clinical diagnosis.
Article
Chemistry, Physical
Hui Wang, Lei Zhang, Huasheng Jiang, Palanisamy Kannan, Rongfang Wang, Palaniappan Subramanian, Shan Ji
Summary: Hierarchical Ni(OH)(2)-NiS in-plane edge hybrid nanosheets were successfully prepared on carbon cloth surface as a flexible catalytic electrode, showing enhanced electrocatalytic performance for urea electro-oxidation. The electrode displayed higher catalytic activity, conductivity, and available active sites, making it a promising catalyst for potential applications in direct-urea-fuel-cells and urea-assisted water splitting.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Review
Chemistry, Physical
Shahab Paygozar, Alireza Sabour Rouh Aghdam, Erfan Hassanizadeh, Reza Andaveh, Ghasem Barati Darband
Summary: Water electrolysis is an efficient strategy to produce green energy and generate hydrogen. However, the slow kinetics of the anodic half-reaction (OER) decreases the system's efficiency. Urea oxidation reaction (UOR) is considered a promising alternative to OER due to its low potential, abundance of urea sources, and harmless by-products. Non-noble metal catalysts such as nickel, cobalt, molybdenum, manganese, iron, and copper play a crucial role in reducing costs and increasing efficiency. This review explores the electrochemical water splitting reaction, urea electro-oxidation, catalyst synthesis methods, performance measurement parameters, and challenges for future improvements.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Chemistry, Analytical
Hongqin Liu, Dongsheng Wen, Bingjun Zhu
Summary: Urea electrolysis is a promising method for treating urea-polluted water and producing hydrogen fuel as clean energy. In this study, a hierarchically three-dimensional structure is obtained by growing nickel sulfide composites on nickel foam, which shows efficient urea oxidation reaction catalytic performance and practical application in urine and urea-rich wastewater treatment.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2023)
Article
Chemistry, Analytical
Yajing Lyu, Yu Peng
Summary: In this study, a three-dimensional and hierarchical Ni-Co-S@NiCo-Cu nanostructure was successfully synthesized and demonstrated outstanding electrocatalytic performance in both hydrogen evolution reaction and urea oxidation reaction.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2023)
Review
Engineering, Chemical
Vy Anh Tran, Van Dat Doan, Van Thuan Le, Thanh-Quang Nguyen, Ta Ngoc Don, Vo Vien, Nguyen Thanh Luan, Giang N. L. Vo
Summary: According to recent studies, interest in metal-organic frameworks (MOFs) and their derivatives are still developing in the field of electrochemical biosensing. This is because of their superior electrical conductivity, active surface area, and easier manufacturing procedures. This study discusses current advances in the use of MOF nanoparticles as highly conductive substrates in electrochemical biosensing. The study categorized biosensors into enzyme and nonenzyme biosensors and analyzed recent research works in each category. It provides an overview of various analyses, MOFs materials, and sensor performance, as well as discusses the broad concerns, difficulties, and future views in this field.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2023)
Article
Chemistry, Physical
Zhe Jiang, Luosong Zheng, Mengqi Liu, Han Xu, Sha Chen, Fuquan Xiong, Yuanyuan Liao, Yu Liao, Yan Qing, Yiqiang Wu
Summary: In this study, an innovative strategy to integrate bimetallic spinel sulfides CoNi2S4 nanosheet arrays with graphitized carbonized wood (denoted as CoNi2S4/GCW) is proposed for synergistically optimizing the electroconductivity and the hierarchical porous structure of the catalyst for urea-assisted hydrogen generation. The CoNi2S4/GCW catalyst exhibits excellent performance for both urea oxidation reaction and hydrogen evolution reaction, making it a promising candidate for urea-assisted electrocatalytic hydrogen generation.
APPLIED SURFACE SCIENCE
(2023)
Article
Engineering, Electrical & Electronic
Xiangxiang Du, Shujun Liu, Qin Xu, Xuejun Shi
Summary: The MnO2 nanowires/polyaniline composite (MnO2NW/PANI) was prepared by synthesizing MnO2NW via hydrothermal method and then polymerizing aniline monomer on its surface. The composite showed a specific capacitance of 306.7 F/g, 28.4% higher than that of pristine MnO2. The enhanced capacitance was attributed to the reduced electric resistance within the composite and the synergistic effect between MnO2NW and PANI for fast ion/charge transfer. Moreover, the MnO2NW/PANI electrode exhibited stable cycle performance with 88.7% capacity retention after 5000 repeated cycles at a high current density of 5 A/g.
JOURNAL OF ELECTRONIC MATERIALS
(2023)
Article
Chemistry, Physical
Peng Yi, Yanyan Song, Caiyun Li, Rongzhan Liu, Jiankun Sun
Summary: In this study, a Mn-doped NiSx/NiO/Ni3N nanosheets arrays catalyst was prepared through a simple hydrothermal and thiourea-assisted solid reaction. The catalyst exhibited outstanding hydrogen evolution reaction (HER) and urea oxidation reaction (UOR) activities in alkaline urea electrolyte. As a UOR electrode, Mn-NiSx/NiO/Ni3N@NF showed a urea removal rate of up to 56% after continuous operation for 32 hours.
APPLIED SURFACE SCIENCE
(2023)
Article
Materials Science, Multidisciplinary
T. V. M. Sreekanth, X. Wei, K. Yoo, J. Kim
Summary: In this study, Co3O4 catalyst was synthesized by annealing ZIF-67 and characterized for its properties. The results showed that compared to ZIF-67, the ZIF-67-derived Co3O4 catalyst exhibited lower Tafel-slope value and higher electrocatalytic performance in urea electro-oxidation.
MATERIALS CHEMISTRY AND PHYSICS
(2023)
Article
Biochemistry & Molecular Biology
Mai M. Khalaf, M. Gouda, Ibrahim M. A. Mohamed, Hany M. Abd El-Lateef
Summary: Natural chitosan-based films (CS) were prepared by changing the ingredient combinations of gold nanoparticles (AuNPs), lithium oxide (Li2O), and graphene oxide (GO). The structural properties of the films were examined using XRD, FTIR, and EDX techniques. The results showed that Li2O@CS had the lowest contact angle of 70 +/- 4.6 degrees. SEM analysis revealed that the AuNPs were rod-shaped with an average length of 0.3 mm and an average width of 90 nm. The refractive index of CS was 2.142, which slightly decreased to 2.085 for AuNPs/Li2O/GO@CS. In terms of cell viability, AuNPs/Li2O/GO@CS showed a viability percentage of 98.91% for normal lung cells at a concentration of 156.25 mg/mL, while 9.77 mg/mL achieved 125.78%. Therefore, the combination of AuNPs, GO, and Li2O in the CS matrix enhances biocompatibility and has potential applications in medicine. (c) 2023 Elsevier Inc. All rights reserved.
BIOCHEMICAL AND BIOPHYSICAL RESEARCH COMMUNICATIONS
(2023)
Article
Chemistry, Physical
Mohamed Ali Ibrahim Al-Gaber, Hany M. Abd El-Lateef, Mai M. Khalaf, Saad Shaaban, Mohamed Shawky, Gehad G. Mohamed, Aly Abdou, Mohamed Gouda, Ahmed M. Abu-Dief
Summary: A new heterocyclic azo dye ligand (L) was synthesized and coordinated with various metal ions to form complexes. The structures of the complexes were determined using multiple techniques. The ligand exhibited tri-dentate behavior and coordinated to the metal ions through multiple functional groups. The complexes showed good antimicrobial activity and potential for future study.
Article
Polymer Science
Latifah Mohammed Ali Almaieli, Mai M. M. Khalaf, Mohamed Gouda, Abraham Elmushyakhi, Manal F. F. Abou Taleb, Hany M. M. Abd El-Lateef
Summary: Chitosan-metal oxide nanohybrid (MONH) composites were prepared by combining chitosan with MONH made of vanadium oxide, ytterbium trioxide, and graphene oxide to create wound dressing materials. The properties of the nanohybrid@CS were analyzed using various techniques including FTIR, XRD, SEM/EDX, and TGA. The contact angles of the composites showed a decrease when in the hydrophilic phase, indicating improved water and drug absorption. The addition of MONH also resulted in cell viability and growth.
Article
Polymer Science
Latifah Mohammed Ali Almaieli, Mai M. Khalaf, Mohamed Gouda, Sultan Alhayyani, Manal F. Abou Taleb, Hany M. Abd El-Lateef
Summary: This study focuses on wound dressings made of cellulose acetate encapsulating chromium oxide, titanium oxide, and graphene oxide. The films were characterized for their structure, morphology, optics, thermal behavior, and biological activity. The results demonstrated the promising wound-healing behavior of the cellulose acetate-based films.
Article
Materials Science, Multidisciplinary
Mohammed N. Almarri, Mai M. Khalaf, M. Gouda, Fakiha El-Taib Heakal, Abraham Elmushyakhi, Manal F. Abou Taleb, Hany M. Abd El-Lateef
Summary: Mixed oxy-compositions, such as CuO/La2O3/GO-based nanocomposites, have demonstrated potential as photo-catalysts and adsorptive materials for water treatment. These nanocomposites combine the adsorptive feature of carbon-based nanoparticles with the photo-catalytic properties of metal oxides, making them suitable for the removal of water pollutants. TEM and SEM observations revealed changes in the structure and grain size of the nanocomposites upon the incorporation of CuO and La2O3 into GO nanosheets. The ternary nanocomposite exhibited excellent thermal stability and a high dye removal efficiency of 85% for methylene blue.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Chemistry, Applied
Hany M. Abd El-Lateef, Mai M. Khalaf, Mahmoud Kandeel, Amer A. Amer, Antar A. Abdelhamid, Aly Abdou
Summary: The main purpose of this study is to design and synthesize new Co(II), Ni(II), and Cu(II) mixed-ligand complexes derived from an easily synthesized azo-ligand, [2-(phenylthio)phenyl]diazenyl}-2-naphthol (HTe), with 8-hydroxyquinoline (HQ) for antimicrobial activity evaluation. The complexes were characterized and their molecular structures were optimized using DFT calculations. The disc diffusion test showed that the prepared complexes exhibited higher antibacterial activity compared to the pristine ligands. Molecular docking studies revealed potential antibiotic properties of these complexes. The correlation between in vitro activity and DFT/molecular docking data was discussed.
APPLIED ORGANOMETALLIC CHEMISTRY
(2023)
Article
Engineering, Chemical
Ibrahim M. A. Mohamed, Xian-Yang Wu, Ji-Hua Zhu, Hany M. Abd El-Lateef, Hamouda M. Mousa, Feng Xing
Summary: In this study, calcined hydrotalcite (CLDH NPs) were used to stabilize the pH around anode mortar in the ICCP system, which significantly enhanced the lifetime of the external anode by decreasing the acidification around the mortar. The corrosion current was reduced due to the CLDH NPs incorporation, indicating the impact of CLDH NPs on the electrochemical stability of the mortar.
JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS
(2023)
Article
Chemistry, Physical
Mai M. Khalaf, Hany M. Abd El-Lateef, Ibrahim M. A. Mohamed
Summary: Novel bimetallic phosphates of Mn&Ni were studied for low-cost ethylene glycol (EG) electrooxidation. The morphology, crystallinity, and chemistry of MnNiPh-Re and MnNiPh-SG were investigated, and the preparation method was found to significantly affect the observed morphology. The electrocatalytic performance of MnNiPh-Re and MnNiPh-SG as working electrodes for EG oxidation was evaluated, and MnNiPh-SG exhibited better EG oxidation compared to MnNiPh-Re at different EG contents.
SURFACES AND INTERFACES
(2023)
Article
Chemistry, Applied
Hany M. Abd El-Lateef, Mai M. Khalaf, Amer A. Amer, Antar A. Abdelhamid, Aly Abdou
Summary: The aim of this study was to synthesize and characterize new metal complexes incorporating bioactive 8-hydroxyquinoline moiety and investigate their antibacterial, antifungal, and anti-inflammatory potential. The metal complexes showed enhanced antimicrobial and anti-inflammatory properties compared to the original ligands, suggesting their potential as future antibiotics and anti-inflammatory candidates.
APPLIED ORGANOMETALLIC CHEMISTRY
(2023)
Article
Chemistry, Physical
Hany M. Abd El-Lateef, Rasha Mohammed Saleem, Mohammed A. Bazuhair, Ali Hassan Ahmed Maghrabi, Eman Hussain Khalifa Ali, Islam Zaki, Reham E. Masoud
Summary: A new series of hydrazone derivatives were synthesized and screened for their cytotoxic activity against MCF-7 breast cancer cell line. Some compounds exhibited potent cytotoxicity and inhibition of β-tubulin. Flow cytometric analysis revealed that one compound induced cell cycle arrest at G2/M phase and increased apoptosis compared to untreated control. Molecular modeling investigations were conducted to explain the compound's exceptional cytotoxicity and superior ability to inhibit tubulin when compared to CA-4.
JOURNAL OF MOLECULAR STRUCTURE
(2023)
Article
Chemistry, Analytical
Emad F. Newair, Ibrahim M. A. Mohamed, Francois Garcia, Abdulaziz Al-Anazi
Summary: New antioxidant materials in biomedical applications are being studied using chromatographic techniques, mass spectroscopy, and electrochemical analyses to understand their reaction mechanism and products with nucleophiles. The oxidation products of CFT and its reaction pathways in the presence and absence of GSH were identified using UPLC-MS analysis.
MICROCHEMICAL JOURNAL
(2023)
Article
Biochemistry & Molecular Biology
Mohamed S. S. Youssef, Sanaa Ibrahim Ahmed, Ibrahim M. A. Mohamed, Marwa M. M. Abdel-Kareem
Summary: The biosynthesis of silver nanoparticles (Ag NPs) using the edible mushroom Pleurotus floridanus was studied. The best conditions for Ag NPs synthesis were determined through spectrophotometry, TEM imaging, and XRD and FTIR analyses. The amorphous Ag NPs synthesized showed high antimicrobial activity, which may be attributed to their ability to penetrate bacterial cell walls.
Article
Chemistry, Multidisciplinary
Hany M. Abd El-Lateef, Mai M. Khalaf, Amer A. Amer, Mahmoud Kandeel, Antar A. Abdelhamid, Aly Abdou
Summary: This study synthesized three new CrAz(2), MnAz(2), and FeAz(2) complexes and investigated their properties through various analyses. The azo-ligand, 4-(2-hydroxyphenylAzo)-1-naphthol(Az), binds with metal ions through its nitrogen and oxygen atoms. The metal complexes exhibit higher inhibitory activity against certain organisms compared to the free ligand.
Article
Chemistry, Applied
Mohamed Gouda, Yasir J. Abbas, Hany M. Abd El-Lateef, Mai M. Khalaf, Saad Shaaban
Summary: In this study, 23 naphthalene-based organoselenocyanates were synthesized and evaluated for their anticancer and antimicrobial activities. Three compounds showed pronounced anticancer activity against breast cancer cells with minimal toxicity to normal cells. Additionally, two compounds exhibited comparable cytotoxicity to an anticancer drug and demonstrated an interesting therapeutic index. Moreover, these synthesized organoselenocyanates also displayed potential antimicrobial properties against certain bacteria and yeast.
BIOINTERFACE RESEARCH IN APPLIED CHEMISTRY
(2023)
