Article
Nanoscience & Nanotechnology
Adnan Patir, Gi Byoung Hwang, Claudio Lourenco, Sean P. Nair, Claire J. Carmalt, Ivan P. Parkin
Summary: The study found that slippery surfaces had increased resistance to bacterial contamination compared to other surfaces, but did not completely inhibit bacterial attachment, only retarding surface contamination. A strategy was developed to kill bacteria with minimal adhesion, resulting in a crystal violet-impregnated slippery (CVIS) surface with bactericidal and slippery features. Tests showed that the CVIS surface exhibited bactericidal activity against Escherichia coli and Staphylococcus aureus, with significantly enhanced bactericidal activity in white light.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Analytical
Laura Kronlachner, Johannes Frank, Erwin Rosenberg, Andreas Limbeck
Summary: Polymeric composite materials are increasingly important due to their versatility and adaptability. Current analysis methods cannot provide the necessary information on both organic and elemental constituents. This study presents a novel approach using laser ablation and concurrent measurements with EI-MS and ICP-OES to directly characterize the main components of solid polymer samples.
ANALYTICA CHIMICA ACTA
(2023)
Review
Instruments & Instrumentation
Victor G. Mihucz, Aime Ruus, Jane Raamets, Lenka Wimmerova, Teresa Vera, Rossana Bossi, Kati Huttunen
Summary: This review emphasizes the importance of classifying surface reservoirs represented by building and indoor materials, discussing models developed in the past 45 years for studying air pollutant partitioning to surfaces. It also covers validation through analytical measurements, surface characterization techniques, applications in indoor surface chemistry, and microbiological sampling for surface hygiene characterization. The focus is on introducing the state-of-the-art analytical techniques used indoors for surface analysis.
APPLIED SPECTROSCOPY REVIEWS
(2022)
Article
Engineering, Multidisciplinary
Muhammad Saeed, Karma Albalawi, Iltaf Khan, Nadia Akram, Ibrahim H. A. Abd El-Rahim, Sadeq K. Alhag, Ahmed Ezzat Ahmed, Faiza
Summary: Photocatalytic treatment of wastewater using metal oxides as photocatalysts has attracted significant attention. The efficiency of photocatalysis can be improved by separating the electrons and holes generated by photon absorption. A heterojunction between two semiconductors, such as p-n NiO-ZnO, has been developed to achieve efficient photodegradation of crystal violet dye. The synthesized heterojunction was characterized using various techniques, and its photocatalytic performance was found to be superior to pristine NiO and ZnO. Kinetic analysis of the degradation data was performed based on the Langmuir-Hinshelwood mechanism.
ALEXANDRIA ENGINEERING JOURNAL
(2023)
Article
Chemistry, Inorganic & Nuclear
J. Puneetha, Nagaraju Kottam, A. Rathna
Summary: The photocatalytic efficiency of semiconducting ZnO is influenced by factors such as band gap and fast recombination of charge carriers, but this can be improved through methods such as nanostructuring, chemical doping, and introducing oxygen defects. The ZnO/GO nanohybrid showed superior photocatalytic performance due to efficient charge carrier separation and injection of photosensitized electrons, with a significant degradation of CV dye under visible light. Additionally, the physical properties like band gap were found to impact the catalytic competence.
INORGANIC CHEMISTRY COMMUNICATIONS
(2021)
Article
Chemistry, Analytical
Yamin Lin, Mengmeng Zheng, Xin Zhao, Dan Liu, Jiamin Gao, Wei Gong, Shusen Xie, Siqi Gao, Yun Yu, Juqiang Lin
Summary: This research introduced a simple one-pot sol-thermal strategy to prepare a highly sensitive and stable SERS substrate, enabling the detection of rhodamine 6G and crystal violet. Additionally, the substrate could be utilized for quantitative analysis of crystal violet in wastewater.
ANALYTICAL METHODS
(2021)
Article
Chemistry, Multidisciplinary
Anderson L. Valle, Anielle C. A. Silva, Noelio O. Dantas, Robinson Sabino-Silva, Francielli C. C. Melo, Cleumar S. Moreira, Guedmiller S. Oliveira, Luciano P. Rodrigues, Luiz R. Goulart
Summary: It was discovered that the interaction between zinc oxide nanocrystals and glyphosate can be used for the detection and quantification of the herbicide. However, strong chemical interactions between silver and glyphosate may hinder FTIR identification.
Article
Chemistry, Multidisciplinary
Cassio Lima, Shwan Ahmed, Yun Xu, Howbeer Muhamadali, Christopher Parry, Rachel J. McGalliard, Enitan D. Carrol, Royston Goodacre
Summary: Sepsis is a life-threatening condition that causes approximately 11 million deaths worldwide. Raman and infrared spectroscopy, as diagnostic tools, have the potential to rapidly detect bacterial infections. This study introduces a new technology that combines infrared and Raman spectra, and demonstrates its similarity and reproducibility in analyzing bacterial samples. The findings show different clustering patterns between the two methods, highlighting the complementary information provided by microbial pigments in Raman spectra. Overall, the combination of Raman and infrared spectroscopy has promising applications in clinical microbiology.
Article
Environmental Sciences
Muniba Rahmat, Shumaila Kiran, Tahsin Gulzar, Mohd Yusuf, Rabia Nawaz, Javaira Khalid, Nooria Fatima, Ata Ullah, Muhammad Azam
Summary: This study investigates the use of Fishtail palm flower extract as a reducing agent for the synthesis of MnO2 nanoparticles. Characterization of the nanoparticles was performed using SEM, FT-IR, and XRD analyses, which revealed their nature and properties. The synthesized MnO2 nanoparticles were then utilized for the decolorization of crystal violet dye, achieving high removal efficiency under specific conditions. The experimental findings also proposed a possible pathway for the decolorization process.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Materials Science, Multidisciplinary
Van Thuan Le, Van Dat Doan, Thi Thanh Nhi Le, My Uyen Dao, Thu-Thao Thi Vo, Ha Huu Do, Dinh Quoc Viet, Vy Anh Tran
Summary: The novel Fe3O4/ZnO/CRC photocatalyst showed efficient degradation of CV, primarily attributed to the (center dot)O2 reactive species, and demonstrated high stability and reusability.
Article
Chemistry, Physical
D. Marin, G. Gerbaud, O. Margeat, F. Ziarelli, F. Ferrer, O. Ouari, A. Campos, S. Bertaina, A. Savoyant
Summary: The combination of nuclear and electron magnetic resonance techniques was used to study the light-induced magnetic state at the surface of chemically prepared zinc oxide nanoparticles. It was found that the observed four-line structure arises from surface-located methyl radicals and is replaced by trideuteromethyl with functionalization. Advanced pulse-EPR techniques reveal the modulation and correlations between different EPR transitions of the radicals.
JOURNAL OF CHEMICAL PHYSICS
(2023)
Article
Materials Science, Multidisciplinary
Aayush Gupta, Jagdeep Kaur, Om Prakash Pandey
Summary: The effect of composition on the optical and photocatalytic performance of ZnS-ZnO composite is investigated in this study. The composite samples are synthesized using a chemical precipitation method, and the composition of the precipitating agent affects the formation of ZnO and ZnS. Optical studies show enhanced visible absorption and redshift in the absorption edge of the composites compared to bare ZnS nanoparticles. The combination of ZnO and ZnS is supported by optical emission spectra.
PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE
(2023)
Article
Physics, Applied
Y. W. Zhan, K. Yan, J. H. Wu, H. G. Zhu, J. Chen, S. L. Tang, Z. Y. Zhang, X. L. Wu
Summary: Violet phosphorus (VP), a new type of two-dimensional semiconductor material, has shown great potential in the field of optoelectronics. In this study, high quantum yield VP quantum dots (VPQDs) were successfully prepared via liquid exfoliation and solvothermal treatment. The VPQDs exhibited strong blue photoluminescence and good photostability under ambient conditions, suggesting their possible applications in fluorescent biological imaging and photocatalytic reactions.
APPLIED PHYSICS LETTERS
(2022)
Article
Polymer Science
M. Abdelbaky, A. M. Abdelghany, A. H. Oraby, E. M. Abdelrazek, M. M. Rashad
Summary: The demand for clean water free of pollution is a priority for humanity. Gd2Zr2O7 nanoparticles were synthesized using a sol-gel auto-combustion strategy and used as a Fenton-like approach for dye phytoremediation. The synthesized nanoparticles showed a significant photo Fenton catalytic activity with an efficiency of 90% for the photocatalysis of crystal violet dye after 60 min, attributed to the large surface area of the scattered microstructure and reactive OH center dot formation.
JOURNAL OF INORGANIC AND ORGANOMETALLIC POLYMERS AND MATERIALS
(2023)
Review
Polymer Science
Mervat Farag, Shady Mohamed El-Dafrawy, Shawky Mohamed Hassan
Summary: In this study, ZnO and C-doped ZnO samples were successfully biosynthesized using aqueous Cystoseira crinite extract. The biosynthesized samples were characterized using various techniques and the photocatalytic activity of the prepared photocatalysts was investigated. It was found that 5% C-doped ZnO calcined at 500 degrees C exhibited the highest photocatalytic efficiency, which could be attributed to its narrower optical band gap.
JOURNAL OF INORGANIC AND ORGANOMETALLIC POLYMERS AND MATERIALS
(2023)
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
Santosh Kumari, Suvarcha Chauhan, Ahmad Umar, Hassan Fouad, Mohammad Shaheer Akhtar
Summary: This study investigates the micellar state of sodium cholate and sodium deoxycholate in the presence of a bioactive peptide, glycyl dipeptide, using conductivity and fluorescence methods. The results reveal the hydrophobic/hydrophilic interactions between bile salts and glycyl dipeptide, as well as the thermodynamic factors of micellization. Additionally, changes in micelle polarity induced by the interactions are studied using pyrene fluorescence spectrum, showing a correlation with conductivity studies.
Article
Materials Science, Multidisciplinary
Ahmad Umar, M. Shaheer Akhtar, Ahmed A. Ibrahim, Hassan Algadi, Mohsen A. M. Alhamami, Faheem Ahmed, Moaaed Motlak, Sheikh Akbar
Summary: This paper reports the preparation of highly dense and defined Co3O4 nanofibers via electrospinning and controlled oxidation methods. The fabricated Co3O4 nanofibers were characterized and found to possess well-defined fibrous morphology and crystalline cubic phase. These nanofibers were used as electro-active electrodes in supercapacitors and chemical sensing, and exhibited excellent cycle stability, high specific capacitance, and reasonable sensitivity.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Article
Materials Science, Multidisciplinary
Ahmad Umar, Ramesh Kumar, Mohinder Singh Chauhan, Rajesh Kumar, Ahmed A. Ibrahim, Mohsen A. M. Alhamami, Hassan Algadi, Mohammad Shaheer Akhtar
Summary: CdO-ZnO nanocomposites were synthesized and characterized in terms of morphology, structure, phase, vibrational, optical and compositional properties. The nanocomposites showed promising applications in the fluorescence detection of hydrazine and the photocatalytic degradation of Rhodamine B dye.
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
Materials Science, Multidisciplinary
Deyong Zheng, Huihui Jin, Yucong Liao, Pengxia Ji
Summary: In this study, a highly stable and efficient catalyst, fluorine-doped Co3O4 (F-Co3O4), was developed for hydrogen production by water electrolysis. The F-Co3O4 catalyst exhibited a remarkable reduction in overpotential and demonstrated excellent stability for over 100 hours.
Article
Materials Science, Multidisciplinary
Ziwen Lv, Jintao Wang, Fengyi Wang, Jianqiang Wang, Fuquan Li, Hongtao Chen
Summary: Adding Cu6Sn5 nano particles can effectively inhibit the overgrowth of intermetallic compounds at the interfaces of solder joints in electronic devices, providing a solution to this issue. A new growth mechanism of intermetallic compounds at the interfaces was identified.
Article
Materials Science, Multidisciplinary
Jun Wang, Jiawei Chen, Wanru Liao, Fangyang Liu, Min Liu, Liangxing Jiang
Summary: A BiOI/AgI/Ag plasmonic heterostructure photocathode was successfully designed through electrodeposition, ion-exchange, and illumination methods. This photocathode exhibits superior performance in photoelectrochemical water splitting.
Article
Materials Science, Multidisciplinary
Xiaoxiao Liu, Xianxian Zhou, Xiaotao Ma, Qinbo Yuan, Shibin Liu
Summary: In this study, the authors propose a method to accelerate the reaction of polysulfides in lithium-sulfur batteries using a Ni@OC Mott-Schottky heterojunction as a catalyst. The experimental results demonstrate that the charge redistribution at the Ni@OC interface accelerates electron transfer and enhances catalytic activity, leading to improved reaction kinetics and battery performance.
Article
Materials Science, Multidisciplinary
Dayou Ma, Mohammad Rezasefat, Joziel Aparecido da Cruz, Sandro Campos Amico, Marco Giglio, Andrea Manes
Summary: The matrix has a significant effect on the impact resistance of composite materials. Replacing a brittle polymer with a more flexible one can improve impact resistance, but it poses challenges to standard testing methods. This study designs a new fixture for testing the low-velocity impact of soft composites and investigates the effect of the fixture on the mechanical performance.
Article
Materials Science, Multidisciplinary
Lingchang Wang, Qihang Yang, Huzhen Li, Ming Wei, Qian Wang, Zhenzhong Hu, Mengmeng Zhen
Summary: Bronze titanium dioxide (TiO2(B)) is a promising anode material for lithium-ion batteries due to its high specific capacity. However, its practical applications are hindered by poor conductivity and limited electrochemical kinetics. In this study, TiO2(B)-carbon nanosheets heterostructures are synthesized to enhance the cycling performance and rate capability of TiO2(B).
Article
Materials Science, Multidisciplinary
Atul Thakur, Ritesh Verma, Ankush Chauhan, Fayu Wan, Preeti Thakur
Summary: In this study, BaFe12O19 and BaFe12O19: Epoxy (50:50) nanocomposites were synthesized using the co-precipitation method. The structural information and material properties, such as crystallite size and electrical conductivity, were characterized by XRD, FESEM, EDX, and TEM techniques.
Article
Materials Science, Multidisciplinary
Jingyu Wu, Xinyan Ma, Yong Yang
Summary: A well-defined CoS2@NC(CS-500) hierarchical binder-free catalyst cathode is constructed through in-situ grown of ZIF-67 on carbon cloth and high-temperature carbonization. The cathode shows excellent reaction kinetics and electrochemical performance, providing inspiration for developing advanced Li-CO2 battery catalysts.
Article
Materials Science, Multidisciplinary
Svetlana M. Posokhova, Vladimir A. Morozov, Kirill N. Boldyrev, Dina Deyneko, Erzhena T. Pavlova, Bogdan I. Lazoryak
Summary: This study explores the impact of synthesis method and composition on the structure and luminescence properties of K5Eu1-xHox(MoO4)4 with the palmierite-type matrix. The co-doping of Eu3+ and Ho3+ ions plays a critical role in manipulating charge transfer and luminescence efficiency in the visible and infrared regions.
Article
Materials Science, Multidisciplinary
Jian Wang, Yeting Tao, Jingsheng Wang, Youtian Tao
Summary: A new electron-transport material iTPyBI-CN is developed through non-catalytic C-N coupling reaction. It exhibits better electroluminescence efficiency in organic light-emitting diodes compared to the commercial material TPBI, due to its twisted geometry and higher energy levels.
Article
Materials Science, Multidisciplinary
Tao Zhu, Feng Huang, Shuo Li, Yang Zhou
Summary: This article combines XRD analysis and microscopic structural observation to investigate the changes in limestone after high-temperature treatment. It finds that 500 degrees C is the critical temperature for crystalline and spatial arrangement changes in limestone, and the thermal conductivity, specific heat capacity, and heat storage coefficient gradually decrease after thermal treatment.
Article
Materials Science, Multidisciplinary
Muhammad Haekal Habibie, Fransiska Sri Herwahyu Krismastuti, Abdi Wira Septama, Faiza Maryani, Vivi Fauzia
Summary: This study focuses on the synthesis of zinc oxide nanostructure from zinc recovered from galvanization ash and highlights its potential as a sustainable source of zinc and as an antibacterial agent.
Article
Materials Science, Multidisciplinary
Jingyi Li, Yixin Xing, Wei Gu, Shousi Lu
Summary: In this study, PC@CaP microparticles were fabricated using biomimetic mineralization. The results showed that under environmental stress, PC@CaP exhibited improved stability and antioxidative activity, indicating its potential use in high-added value fields.
Article
Materials Science, Multidisciplinary
Yan Liu, Shunyou Chen
Summary: In this study, TNTs were used as a drug carrier and modified with ZIF-8 and silk fibroin to obtain a new drug loading platform. The results showed that this drug-loaded platform had a good drug release effect in vitro and could promote cell proliferation and osteogenic differentiation.
Article
Materials Science, Multidisciplinary
Chunhui Zhu, Wentao Wang, Qing Zhen, Xinning Huang, Shixin Li, Shaochang Wang, Xiaoping Ma, Xiaoxia Liu, Yalong Jiao, Kai Sun, Zhuangzhi Li, Huaixin Yang, Jianqi Li
Summary: A type of stacking fault is revealed in e-InSe crystal, which is associated with a small stacking-fault energy and shows exceptional plasticity.
