Article
Environmental Sciences
Limny Esther Perez Jimenez, Francisco Paraguay Delgado, Laila Nayzzel Munoz Castellanos, Lizeth Rojas Blanco, Edicson Macedonio Lopez Alejandro, Erik Ramirez Morales
Summary: The morphological and antibacterial effects of CeO2 nanoparticles (NPs) with different amounts of Ag precursor were investigated. The NPs were synthesized with varying percentages of silver nitrate content using co-precipitation method. The addition of Ag precursor resulted in slightly decreased particle size and increased antimicrobial activity, with reduction rates reaching up to 99.999%.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Chemistry, Multidisciplinary
Isabel M. Oliveira, Marisa Gomes, Luciana C. Gomes, Manuel F. R. Pereira, Olivia S. G. P. Soares, Filipe J. Mergulhao
Summary: This study evaluated the ability of pristine graphene nanoplatelet/polydimethylsiloxane (GNP/PDMS) surfaces with different GNP loadings to inhibit biofilm formation. The results showed that a 5 wt% GNP loading significantly reduced the number of biofilm cells for both Staphylococcus aureus and Pseudomonas aeruginosa. Dual-species biofilms exhibited higher resistance to the GNP surface, but the effectiveness of the surfaces in suppressing biofilm formation was confirmed.
Article
Engineering, Environmental
Qinqing Wang, Xueqing Zhou, Shuting Ji, Suyun Li, Jianzhong Gu, Longxiang Shen, Pei Liu, Junhui Yin, Gang Xu, Wenyan Shi
Summary: CeO2/Ag-AgVO3@zein is an efficient photocatalyst for the degradation of pollutants such as enrofloxacin under visible light. Additionally, it shows excellent antibacterial and disinfectant properties against Gram-positive/Gram-negative bacteria. In vitro and in vivo experiments have demonstrated the good cytocompatibility of CeO2/Ag-AgVO3@zein.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Biochemistry & Molecular Biology
Anvita Manjunath, G. V. Anoushka Chinmayi, Shruti Renganathan, Vivek Chandramohan, Sasmita Sabat
Summary: This study uses molecular docking and molecular dynamics simulation to demonstrate that Geranyl acetate in Coriandrum sativum has good binding affinity with proteins associated with methicillin-resistant Staphylococcus aureus and multi-drug resistant Pseudomonas aeruginosa. The compound may cause abnormal function of cell wall formation. The study aims to provide a basis for further research on Coriandrum sativum as an antimicrobial agent.
JOURNAL OF BIOMOLECULAR STRUCTURE & DYNAMICS
(2023)
Article
Chemistry, Multidisciplinary
Reza Ghamarpoor, Akram Fallah, Masoud Jamshidi, Somayeh Salehfekr
Summary: The design of a Z-scheme heterojunction structure offers environmentally friendly solutions for wastewater treatment, antibacterial activity, and electrochemical processes. This study focused on extracting silver from waste batteries and synthesizing WO3 nanorods and WO3-CeO2 through specific methods. The incorporation of silver nanoparticles into the heterojunction structure significantly improved the degradation efficiency of methylene blue and displayed remarkable antibacterial properties.
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Apurva Pandey, Dariusz Smilowicz, Eszter Boros
Summary: Galbofloxacin, a Gallium(iii) complex, exhibits potent antibacterial activity against S. aureus with higher efficacy than the parent antibiotic ciprofloxacin. Through protease substrate mechanism, Galbofloxacin can release antibiotic payload in bacterial cytoplasm, showing efficient uptake mediated by siderophores. Additionally, in vivo studies demonstrate selective biodistribution to infected tissue, leading to significant reduction in infection burden and improved survival compared to ciprofloxacin within 7 days.
Article
Chemistry, Physical
Tauseef Munawar, Faisal Mukhtar, Muhammad Shahid Nadeem, Sumaira Manzoor, Muhammad Naeem Ashiq, Khalid Mahmood, Sana Batool, Murtaza Hasan, Faisal Iqbal
Summary: Direct dual Z-scheme heterostructured nanocomposite TiO2-WO3-CeO2 (NC) and pristine metal oxides nanostructures (NSs) were fabricated using a facile co-precipitation route. The NC exhibited narrow energy bandgap, higher electrical conductivity, and lower recombination rate, showing superior photodegradation and antimicrobial activity, as well as excellent capacitive behavior.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Inorganic & Nuclear
Dengdeng Liu, Pengyu Zhu, Li Yin, Xinyu Zhang, Kaijin Zhu, Junhua Tan, Riya Jin
Summary: In this study, Bi2GeO5/Ag3PO4 nano-composites were synthesized and a Bi2GeO5/Ag@Ag3PO4 Z-scheme heterojunction was assembled. Characterization and experiments showed that the catalytic activity of the composites was superior to the individual components, with 0.1Bi2GeO5/Ag3PO4 exhibiting the best photocatalytic efficiency for RhB degradation. The formation of the heterojunction by photocatalytic processes significantly increased the photocatalytic activity and stability.
JOURNAL OF SOLID STATE CHEMISTRY
(2021)
Article
Materials Science, Multidisciplinary
Xinfei Zhang, Yuan Zhang, Ziwei Wang, Nan Zhang, Xiaobo Jia
Summary: Efficient and stable photocatalysts play a critical role in removing organic waste from water. In this study, a series of Ag2O/phosphors-doped g-C3N4 (AgO/PCN) composites with p-n heterojunctions were prepared and demonstrated excellent photocatalytic degradation abilities for Rhodamine 6G (Rh 6G) and Levofloxacin (LVFX) under visible light irradiation.
DIAMOND AND RELATED MATERIALS
(2022)
Article
Environmental Sciences
Awais Ahmad, Muhammad Sufyan Javed, Safia Khan, Tahani Mazyad Almutairi, Abdallah A. A. Mohammed, Rafael Luque
Summary: The use of natural resources for manufacturing nanoparticles is an environmentally friendly and cost-effective approach with applications in ecology and medicine. This study synthesized CeO2 and Ag/CeO2 nanoparticles from Morinda tinctoria plant extract and analyzed their phase structure, surface morphology, optical properties, and valency. The nanoparticles showed a cubic phase structure with silver decoration, metal-oxygen stretching, and decreased band gap. Scanning electron microscopy and transmission electron microscopy confirmed their spherical morphology, while energy dispersive spectroscopy assessed their elemental composition and purity. The nanoparticles exhibited enhanced photocatalytic activity and antibacterial properties when compared to CeO2. This research contributes to the development of green synthesis of versatile metal nanoparticles.
Article
Environmental Sciences
Yaqiao Wang, Xunfeng Xia, Shengwang Gao, Xingpeng Zhao, Guoying Wang, Xue Han
Summary: A novel Ag/BiOBr/CeO2 composite with excellent performance in degrading sulfisoxazole under visible light irradiation was successfully prepared. The addition of Ag significantly improved the photocatalytic activity of the composite, while maintaining good stability and recyclability.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Chemistry, Multidisciplinary
Xiaojie Wu, Bochen Hu, Di Li, Biyi Chen, Yuanyong Huang, Zhongkai Xie, Longhua Li, Nanjun Shen, Fuchen Yang, Weidong Shi, Ming Chen, Yongfa Zhu
Summary: In this study, a highly efficient photocatalyst for bacterial inactivation under natural light was developed. The catalyst achieved the highest efficiency among all the natural light antibacterial reports, and exhibited negligible toxicity and damage to normal tissue cells.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Inorganic & Nuclear
Shruti Jain, Anuradha Sharma, Suprabha Yadav, Naveen Kumar, Hariom Dahiya, Peter R. Makgwane, Ahmad Hosseini Bandegharaei, Jitender Jindal
Summary: Binary and ternary nanocomposites of Bi2O3/CuS/Ag were successfully prepared and characterized for their structural, compositional, morphological, optical, and photocatalytic properties. The results showed that the ternary Bi2O3/CuS/Ag nanocomposites exhibited the highest photocatalytic activity in acidic medium and the best degradation performance. The improved photocatalytic efficiencies were attributed to the refinement in absorbance, obtained band gap in the visible region, and formation of heterojunctions.
INORGANIC CHEMISTRY COMMUNICATIONS
(2023)
Article
Materials Science, Ceramics
Junwei Cui, Dapeng Wu, Zhenyun Li, Guoan Zhao, Jinshui Wang, Le Wang, Bingxuan Niu
Summary: The Ag/ZnO hybrid cages, prepared through in situ pyrolysis with well-preserved polyhedron shape and rich mesoporous structures, exhibit enhanced photocatalytic and antibacterial performances by improving light absorption and promoting charge separation. The cages demonstrate significant degradation of various organic dyes and inhibition against bacteria, with detailed mechanism studies conducted through optical/electrochemical dynamic tests and Ag+ and Zn2+ release measurements.
CERAMICS INTERNATIONAL
(2021)
Article
Chemistry, Physical
Jaspal Singh, R. K. Soni
Summary: The study demonstrates the superior performance of Ag nanoparticles functionalized ZnO-CuO nanohybrids in photocatalysis and SERS sensing, including enhancements in optical absorption and fluorescence, as well as the ability to degrade organic pollutants under sunlight exposure and efficiently detect rhodamine 6g molecules.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2021)
Article
Environmental Sciences
Eun-Bi Kim, M. Imran, Eun-Hee Lee, M. Shaheer Akhtar, Sadia Ameen
Summary: This work focuses on the preparation of efficient nanomaterials framework using ZnO nanoglobules with graphene oxide and reduced graphene oxide for rapid multiple ion field-effect transistor sensors. The fabricated sensors showed excellent responses and sensitivities towards Cr (III) and Cu (II) ions, with remarkable dynamic linear detection capabilities and low limit of detection values. The platform demonstrated extraordinary reproducibility and stability in sensing performance, indicating promising potential for water maintaining systems.
Article
Energy & Fuels
Abdullah, Eun-Bi Kim, M. Shaheer Akhtar, Sadia Ameen
Summary: A new asymmetrically designed organic chromophore with improved optoelectronic properties was synthesized in this study. When used as an electron donor material in bulk heterojunction organic solar cells, the chromophore showed high power conversion efficiency when a compact titanium oxide buffer layer was used. Interestingly, the devices with the buffer layer demonstrated good stability even after 30 days.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2022)
Article
Engineering, Electrical & Electronic
Houcine Naim, Deb Kumar Shah, Abed Bouadi, Masoom Raza Siddiqui, M. Shaheer Akhtar, Chong Yeal Kim
Summary: The study presents a single heterojunction solar cell based on silicon and zinc oxide to improve power conversion efficiency. By utilizing PC1D simulation, the optimum photovoltaic parameters were determined to achieve the highest efficiency for the HJ-based c-Si solar cell.
JOURNAL OF ELECTRONIC MATERIALS
(2022)
Article
Materials Science, Multidisciplinary
Jitendra Kumar Sharma, Meera Yadav, Anindita Hazarika, Hardeo Singh Yadav, Nene Takio, Sadia Ameen, Pratibha Srivastava, M. Shaheer Akhtar
Summary: This paper describes the green synthesis of well-crystalline CeO2 nanoparticles using lemon leaf extract, which efficiently act as a substitute for catalase in catalyzing various enzymatic reactions. The CeO2 nanoparticles exhibited similar activity and catalytic properties to traditional catalase, with the potential for degrading H2O2 and oxidizing toxic compounds.
EMERGENT MATERIALS
(2022)
Article
Engineering, Electrical & Electronic
Deb Kumar Shah, K. C. Devendra, Jaeho Choi, Seong Hwan Kang, M. Shaheer Akhtar, Chong Yeal Kim, O-Bong Yang
Summary: This study optimizes the thickness of graphene oxide (GO) as an antireflection coating (ARC) layer using a low-cost deposition process and validates the results through experiments and simulations. The optimized GO ARC layer with a thickness of 80 nm exhibits the lowest reflectance and the highest photovoltaic performance in Si solar cells.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2022)
Article
Materials Science, Multidisciplinary
Jay Singh, Kichang Hong, Younggwon Cho, M. Shaheer Akhtar, Jungwon Kang, Alok Kumar Rai
Summary: This article investigates the hydrothermal synthesis of oval-shaped V2O5 nanoparticles using a metal-organic framework (MOF) as a template. The characterized sample reveals that the unique morphology of the nanoparticles, with a large surface area and numerous channels for lithiation and de-lithiation, leads to improved electrochemical performances. The V2O5 electrodes show promising potential as cathode materials for next-generation lithium-ion batteries.
Article
Energy & Fuels
Jumaboev Sherozbek, Jaewoo Park, Mohammad Shaheer Akhtar, O-Bong Yang
Summary: Solar power generation is impacted by meteorological factors, and accurately predicting power generation is important for integrating solar energy into the electrical grid. This study used smart artificial intelligence models to forecast power generation for non-transparent and transparent solar panels. Deep learning approaches such as LSTM, GRU, and transformers were implemented, with the transformers model showing the best performance. The proposed model demonstrated efficient and effective forecasting of time-series data.
Article
Environmental Sciences
M. Imran, Eun-Bi Kim, Abdullah, M. Shaheer Akhtar, Ahmad Umar, Dong-Heui Kwak, Sadia Ameen, Sotirios Baskoutas
Summary: The study focuses on the synthesis of an organic semiconductor with extended π-conjugation for the use of photocatalysis in acquiring photon energy from sunlight to clean the environment, particularly for the purification of contaminants from water.
ENVIRONMENTAL RESEARCH
(2023)
Article
Biochemistry & Molecular Biology
Santosh Kumari, Suvarcha Chauhan, Kuldeep Singh, Ahmad Umar, Hassan Fouad, Mohammad Shaheer Akhtar
Summary: This study investigates the effects of glycyl dipeptide on the compressibility, volumetric behavior, and viscometric behavior of cationic surfactants CTAB and DTAB. The study reveals that CTAB interacts more strongly with dipeptide and significantly dehydrates it. The addition of cationic surfactants also affects water-water interactions, leading to variations in determined parameters. Consideration of structural rearrangement of molecules helps explain the results of viscosity and related factors. The study provides insights into the stability and structural changes in protein-surfactant systems mediated by various interactions.
Article
Biochemistry & Molecular Biology
Santosh Kumari, Suvarcha Chauhan, Kuldeep Singh, Ahmad Umar, Hassan Fouad, Mohammed S. S. Alissawi, Mohammad Shaheer Akhtar
Summary: The study investigated the volumetric and compressibility properties of bio-surfactants in aqueous glycyl glycine solution. The results showed strong interactions between glycyl glycine and sodium cholate and sodium deoxycholate, promoting micellization. In addition, the viscous relaxation time increased with bio-surfactant concentration and decreased with temperature.
Article
Biochemistry & Molecular Biology
Md. Torikul Islam, Md. Nahid Parvez Roni, Md. Yunus Ali, Md. Robiul Islam, Md. Shamim Hossan, M. Habibur Rahman, A. A. S. Mostofa Zahid, Md. Nur E. Alam, Md. Abu Hanif, M. Shaheer Akhtar
Summary: This study found that titanium dioxide nanoparticles, prepared through sol-gel and hydrothermal synthetic routes, have specific degradation preferences for charged substrates. It indicates the potential for the selective degradation of specific organic pollutants, facilitating cost-effective effluent management.
Article
Optics
Tri-Chan-Hung Nguyen, Young-Un Kim, Insung Jung, O-Bong Yang, Mohammad Shaheer Akhtar
Summary: This research proposes the use of machine learning to accurately predict the properties of new inorganic perovskite materials, providing guidance for the discovery of desirable organic perovskite materials. The best experimental outcomes were achieved using the Random Forest algorithm, demonstrating the potential of machine learning in accelerating material discovery.
Article
Nanoscience & Nanotechnology
Tae-Guan Kim, Dadajon Jurakuziev, M. Shaheer Akhtar, O-Bong Yang
Summary: This study establishes a relationship between photoluminescence and crystalline properties of inorganic phosphors, and optimizes their optical and photophysical behavior by controlling the Ba/Sr ratio. The findings suggest that machine learning prediction models can serve as excellent preliminary investigations to guide the research of novel inorganic phosphors.
JOURNAL OF SCIENCE-ADVANCED MATERIALS AND DEVICES
(2023)
Article
Materials Science, Multidisciplinary
Ahmad Umar, Rajesh Kumar, Ahmed A. Ibrahim, Mohsen A. M. Alhamami, M. Shaheer Akhtar
Summary: CdS QDs-rGO composites can serve as reliable electron facilitators for the fabrication of sensitive, robust, and persistent electrochemical sensors.
MRS COMMUNICATIONS
(2023)
Article
Chemistry, Inorganic & Nuclear
Deb Kumar Shah, K. C. Devendra, Ahmad Umar, Hassan Algadi, Mohammad Shaheer Akhtar, O-Bong Yang
Summary: This paper investigates the thickness optimization of HfO2 ARC layer on silicon solar cells and explores its impact on the photovoltaic characteristics through simulation analysis. The experimental results show that the HfO2 ARC layer with a thickness of 70 nm achieves lower reflectance and enables the silicon solar cells to have exceptional quantum efficiency and power conversion efficiency.
