Article
Green & Sustainable Science & Technology
Laxmi Prasad Rao Pala, Nageswara Rao Peela
Summary: An optofluidic planar microreactor has been developed for oxygen production through water splitting under visible light illumination. The thickness of the catalyst coating and the reactant flow rate were found to significantly impact the rate of oxygen production.
Article
Chemistry, Physical
Li-Jun Zhao, Zequn Yin, Yusheng Shi, Wen Sun, Libo Sun, Huijuan Su, Xun Sun, Weiling Zhang, Linyan Xia, Caixia Qi
Summary: A highly active iridium complex was obtained with an anionic ligand, showing robust cofactor NADH regeneration in physiological conditions. The high activity of the complex can promote enzymatic reactions.
CATALYSIS SCIENCE & TECHNOLOGY
(2021)
Article
Chemistry, Multidisciplinary
Yunzhou Wen, Peining Chen, Lu Wang, Shangyu Li, Ziyun Wang, Jehad Abed, Xinnan Mao, Yimeng Min, Cao Thang Dinh, Phil De Luna, Rui Huang, Longsheng Zhang, Lie Wang, Liping Wang, Robert J. Nielsen, Huihui Li, Taotao Zhuang, Changchun Ke, Oleksandr Voznyy, Yongfeng Hu, Youyong Li, William A. Goddard, Bo Zhang, Huisheng Peng, Edward H. Sargent
Summary: Ternary oxide electrocatalysts consisting of Sr, Ru, and Ir have been developed to achieve high OER activity and stability in acidic electrolytes. The interaction in the Ru-O-Ir local structure suppresses the participation of lattice oxygen during OER, thus improving stability, while modulation of the electronic structure of active Ru sites optimizes the binding energetics of OER oxo-intermediates.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2021)
Article
Nanoscience & Nanotechnology
Polina Topchiyan, Danila Vasilchenko, Sergey Tkachev, Dmitriy Sheven, Ilia Eltsov, Igor Asanov, Nikolay Sidorenko, Andrey Saraev, Evgeny Gerasimov, Anna Kurenkova, Ekaterina Kozlova
Summary: A new technique for the preparation of fac-[Ir(H2O)(3)(NO2)(3)] using hydrothermal treatment was developed. The synthesized solution was used to prepare a series of Ir/g-C3N4 catalysts, which showed exceptional photo-induced oxygen evolution reaction (OER) activity under visible light illumination. The activity of these catalysts approached that of known homogeneous iridium OER catalysts.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Acoustics
Aleksandr Barulin, Hyemi Park, Byullee Park, Inki Kim
Summary: Research on using ultraviolet and visible light is advancing photoacoustic microscopy. A groundbreaking simulation study proposes incorporating multilayer metalenses into ultraviolet-visible photoacoustic microscopy. The metalens achieves high-resolution imaging with superior endogenous contrast of targets with ultraviolet and visible optical absorption bands, opening new possibilities for downsized multispectral photoacoustic microscopy in clinical and preclinical applications.
Article
Chemistry, Multidisciplinary
Cameron L. Bentley, Lachlan F. Gaudin, Minkyung Kang
Summary: Local voltammetric analysis with a scanning electrochemical droplet cell technique, in combination with a new data processing protocol, is used to directly identify previously unseen regions of elevated electrocatalytic activity on the basal plane of molybdenum disulfide. Understanding the nature of these microscopic catalytic active sites is crucial for the rational design of renewable fuel production materials.
CHEMICAL COMMUNICATIONS
(2023)
Article
Chemistry, Inorganic & Nuclear
Khadichakhan Rafikova, Nermin Meric, Remziye Guzel, Nevin Arslan, Nil Ertekin Binbay, Cezmi Kayan, Veysi Okumus, Alexey Zazybin, Tulegen Seilkhanov, Veysel Binbay, Murat Aydemir
Summary: Mononuclear transition metal complexes based on ionic liquid have been prepared and characterized. The study evaluated their biological properties, including radical scavenging activity, reducing power, antibacterial effect, DNA binding, and cleavage activity.
INORGANICA CHIMICA ACTA
(2022)
Article
Engineering, Environmental
Nguyen Ngan Giang, Hyun Jeong Won, Gibaek Lee, Sung Young Park
Summary: This study focused on the development of a wireless sensor using carbon dots and alkaline phosphatase activity that is responsive to visible light for cancer cells. Through electrochemical and optical methods, the wireless sensor demonstrated high sensitivity and accuracy in detecting cancer cells and investigating interactions between cells and surfaces with antifouling properties.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Chemistry, Multidisciplinary
Svetlana Vihodceva, Andris Sutka, Maarja Otsus, Heiki Vija, Liga Grase, Anne Kahru, Kaja Kasemets
Summary: This study demonstrates a facile and rapid approach for preparing composite coatings with good adhesion and interface location at room temperature. The synthesized coating exhibits rapid inhibition of bacterial growth under visible-light illumination, showing potential for antibacterial applications.
Article
Nanoscience & Nanotechnology
Heng Dong, Xiaohan Shao, Shane Hancox, Sean T. McBeath, William A. Tarpeh, Michael R. Hoffmann
Summary: This study compares the chlorine evolution reaction (CER) catalytic activities of a series of anode samples with different Sb/Co ratios using scanning electrochemical microscopy, demonstrating that Sb sites exhibit higher catalytic activity and the Sb/Co ratios affect the CER selectivity. The high activity of Sb sites highlights the significance of electronic polarization in changing the oxidation states of Co and Sb.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Physical
Regina M. Kluge, Richard W. Haid, Aliaksandr S. Bandarenka
Summary: Efficient production of hydrogen from water using electrocatalysis is hindered by slow kinetics of the oxygen evolution reaction (OER). Iridium (Ir) oxide catalysts in polymer electrolyte membrane electrolysers show promising activity and stability, but the structure-activity relations are not well understood. Noise in electrochemical scanning tunnelling microscopy (n-ECSTM) measurements on amorphous iridium oxide surfaces suggest little structure-sensitivity in OER, unlike in other catalytic reactions.
JOURNAL OF CATALYSIS
(2021)
Article
Biochemistry & Molecular Biology
Olesya Rybalkina, Kseniia Tsygurina, Konstantin Sabbatovskiy, Evgeniy Kirichenko, Vladimir Sobolev, Ksenia Kirichenko
Summary: The creation of monovalent selective ion exchange membranes helps in desalinating surface waters by removing interfering monovalent ions while preserving polyvalent ionic nutrients. Studies have shown that the number of formed layers and the nature of the external layer have a significant effect on the properties of the resulting membranes. Changes in properties, such as the dependence of limiting current densities, enhanced electroconvection, and decreasing monovalent selectivity, occur with increasing numbers of layers in the layer-by-layer coated heterogeneous membranes.
Article
Materials Science, Multidisciplinary
B. Al Farsi, T. M. Souier, F. Al Marzouqi, M. Al Maashani, M. Bououdina, H. M. Widatallah, M. Al Abri
Summary: Transparent pure and Al-doped zinc oxide thin films were successfully deposited on glass substrates using the sol-gel dip-coating technique. The study found that Al doping and annealing temperature have significant effects on the structural, morphological, optical properties, and photocatalytic activity of the films. Al doping was found to improve the photocatalytic activity of the films.
Article
Energy & Fuels
Omer Faruk Er, Hilal Kivrak
Summary: In this study, CNT-supported Ru, Ir, and Cu catalysts with different metal loadings were prepared and characterized successfully. The 10% Ru/CNT, 0.1% Ir/CNT, and 0.5% Cu/CNT catalysts showed high current densities in GER, demonstrating promising potential as direct glucose fuel cell anode catalysts, along with good stability.
Article
Chemistry, Inorganic & Nuclear
Anik Sahoo, Toushique Ahmed, Sourav Deb, Sujoy Baitalik
Summary: The anion and pH-sensing behaviors of a Ru(II)-bipyridine complex with dissociable protons in its secondary coordination sphere are used to create multiple Boolean and fuzzy logic systems. Changes in anions and pH significantly modulate the absorption, emission, and electrochemical behaviors of the metalloreceptor. The protonation-deprotonation behaviors of the metalloreceptor can be reversed and repeated multiple times, allowing it to demonstrate advanced Boolean functions.
INORGANIC CHEMISTRY
(2022)
Article
Engineering, Chemical
Nehar Ullah, Mark A. McArthur, Sasha Omanovic
CANADIAN JOURNAL OF CHEMICAL ENGINEERING
(2015)
Article
Polymer Science
Saima Yasin, Ahmad Shakeel, Tanveer Iqbal, Fazeel Ahmad, Hamayoun Mehmood, Paul F. Luckham, Nehar Ullah
JOURNAL OF MACROMOLECULAR SCIENCE PART A-PURE AND APPLIED CHEMISTRY
(2019)
Review
Chemistry, Physical
Muhammad B. Wazir, Muhammad Daud, Nehar Ullah, Abdul Hai, Amir Muhammad, Mohammad Younas, Mashallah Rezakazemi
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2019)
Article
Multidisciplinary Sciences
Irshad Ali, Saeid Amiri, Nehar Ullah, Mohammad Younas, Mashallah Rezakazemi
Review
Thermodynamics
Mohammad Younas, Mashallah Rezakazemi, Muhammad Daud, Muhammad B. Wazir, Shakil Ahmad, Nehar Ullah, Inamuddin, Seeram Ramakrishna
PROGRESS IN ENERGY AND COMBUSTION SCIENCE
(2020)
Article
Environmental Sciences
Qazi Iqra Shafi, Haseena Ihsan, Yufan Hao, Xin Wu, Nehar Ullah, Mohammad Younas, Benqiao He, Mashallah Rezakazemi
Summary: This study investigated the experimental application of a flat sheet composite nanofiltration membrane synthesized with chitosan nanoparticles and interfacial polymerization of piperazine with polyethersulfone/sulfonated polysulfone substrates in wastewater treatment. The rejection rates for various ions and E. coli were measured under different operating conditions, showing promising results for water flux and species rejection in the permeate.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2021)
Article
Materials Science, Multidisciplinary
Nehar Ullah, Mahnoor Zafar, Hizbullah Malik, Kamran Zaman, Muhammad Raheej, Irshad Ali, Muhammad Younas, Mohammad Jafar Molaei, Mashallah Rezakazemi
Summary: The current study focuses on fabricating and characterizing super-hydrophobic thin-film coatings using synthetized and functionalized Si-NPs, with PVA-associated coatings showing the best results in terms of superhydrophobicity and durability. Characterization techniques such as SEM, AFM, and XRD were utilized to analyze the topographical and morphological characteristics of the coatings, demonstrating the homogeneous application of Si-NPs thin films.
MATERIALS CHEMISTRY AND PHYSICS
(2021)
Article
Engineering, Multidisciplinary
Haris Mahmood Khan, Tanveer Iqbal, Saima Yasin, Muhammad Irfan, Mohsin Kazmi, H. Fayaz, M. A. Mujtaba, Chaudhry Haider Ali, M. A. Kalam, Manzoore Elahi M. Soudagar, Nehar Ullah
Summary: The excessive fuel demand in Pakistan has led to a reliance on imported fuel, negatively impacting the economy. This study suggests that utilizing waste cooking oil for biodiesel production could be a sustainable and beneficial alternative for the country. Analyzing through SWOT-AHP, TOWS and PESTLE methods shows that there are strengths and opportunities in implementing waste oil-based biodiesel in Pakistan.
ALEXANDRIA ENGINEERING JOURNAL
(2021)
Article
Multidisciplinary Sciences
Nehar Ullah, Maqsood Ur Rehman, Bashir Ahmad, Irshad Ali, Muhammad Younas, Muhammad Sagheer Aslam, Atta-Ur Rahman, Ensiyeh Taheri, Ali Fatehizadeh, Mashallah Rezakazemi
Summary: This study investigates the accumulation of heavy metals caused by industrial wastewater irrigation in agricultural fields in Mingora, Swat, Pakistan, and evaluates the potential health risks to human consumers. The results indicate that the concentration of heavy metals in soil and agricultural produce irrigated with industrial wastewater exceeds the allowable limits set by the World Health Organization, highlighting the need for preventive measures to protect the food chain.
Article
Chemistry, Multidisciplinary
Syed Nasir Shah, Mansoor Ul Hassan Shah, Mohamed Ibrahim Abdul Mutalib, Kallidanthiyil Chellappan Lethesh, Jean-Marc Leveque, Nehar Ullah, Humbul Suleman
Summary: This study investigated the impact of ultrasonic parameters on naphthenic acid extraction using different ILs, and the system was optimized for maximum extraction. The IL 1,8-diazobicyclo[5.4.0]-undec-7-ene (DBU) with thiocyanate anions showed the highest efficiency in extracting naphthenic acid. Additionally, the influence of the cation chain length on the extraction efficiency was evaluated, and thermodynamic models were employed to investigate the interaction parameters.
Article
Materials Science, Multidisciplinary
Sher Afgan, Nehar Ullah, Muhammad Sulaiman, Irshad Ali, Tanveer Iqbal, Mohammad Younas, Mashallah Rezakazemi
Summary: In this study, post-consumer PET bottles were reclaimed and reinforced with talc and VPET to develop high strength polymeric composites. The addition of talc greatly improved the mechanical properties of the composites. Mixing VPET with RPET in a specific ratio suppressed thermal degradation and hydrolysis of the developed composites.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Article
Multidisciplinary Sciences
Shaban Gul, Muhammad Abdullah, Mahnoor Zafar, Irshad Ali, Nehar Ullah Khan, Mohammad Younas, Mashallah Rezakazemi
Summary: This study presents the development of a hybrid glass fiber reinforced polyester resin composite, which incorporates functionalized carbon nanotubes with glass fiber using polyester resin as a media. The addition of f-MWCNTs effectively strengthens the interfacial bonding, significantly improving the tensile and impact strength of the composite, making it tougher and thermally stable. However, further increase in the concentration of f-MWCNTs resulted in degradation of the mechanical properties of the composite such as compressive strength due to agglomeration of nanoparticles and void formation.
Article
Engineering, Chemical
Irshad Ali, Nehar Ullah, Mark A. McArthur, Sylvain Coulombe, Sasha Omanovic
CANADIAN JOURNAL OF CHEMICAL ENGINEERING
(2018)
Article
Engineering, Chemical
Mark A. McArthur, Nehar Ullah, Sylvain Coulombe, Sasha Omanovic
CANADIAN JOURNAL OF CHEMICAL ENGINEERING
(2018)
Article
Engineering, Chemical
Amir Naveed, Saeed Gul, Noor Ul Amin, Muhammad Younas, Nehar Ullah
DESALINATION AND WATER TREATMENT
(2017)
Article
Materials Science, Multidisciplinary
Madeeha Riaz, Manahil Najam, Hina Imtiaz, Farooq Bashir, Tousif Hussain
Summary: This study focuses on the structural and biological analysis of Zn-Cu based biodegradable alloys for orthopedic applications. The results indicate that the alloys have good electrical conductivity and biocompatibility, with potential for promoting bone growth and healing process. Additionally, the alloys exhibit a low corrosion rate and improved corrosion resistance.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
Rijo Rajeev, Sk Safikul Islam, Anitha Varghese, Gurumurthy Hegde, Suryasarathi Bose
Summary: In this study, a facile and selective electrochemical sensor was developed for the sensing of guanosine. The sensor utilized a unique porous structure and ordered framework, enabling linear detection of guanosine concentration in the range of 0.123-720 μM under specific conditions.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
Rafael V. M. Freire, Dominique Celeste de A. Dias, Jose Yago Rodrigues Silva, Dayane Kelly Dias do Nascimento Santos, Larissa T. Jesus, Ricardo O. Freire, Severino A. Junior
Summary: This study reports the extraction and isolation of euphol from nature, its adsorption in nanosized ZIF-8, and the efficacy of this system against cancer cells. Experimental and simulation results show that ZIF-8 can enhance the effectiveness of euphol against cancer cells and selectively target cancer cells.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
Manal A. Awad, Awatif A. Hendi, Maha M. Almoneef, Maymunah Alwehaibi, Khalid M. Ortashi, Wadha Alenazi, Fatimah S. Alfaifi, Shareefa Alahmariye, Asma Alangery, Warda Ali Alghoubiri, Haia Aldosari
Summary: In this study, magnesium-doped zinc oxide nanoparticles were synthesized and characterized. The research findings show that magnesium doping can alter the crystal structure and optical properties of zinc oxide, while enhancing its dielectric constant.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
F. J. Willars-Rodriguez, I. R. Chaverz-Urbiola, M. A. Hernandez-Landaverde, A. Zavala-Franco, E. A. Chavez-Urbiola, P. Vorobiev, Yu V. Vorobiev
Summary: This study focuses on manganese doped CdS thin films synthesized by chemical bath deposition. The incorporation of Mn2+ cations in CdS was found to influence the crystalline structure, morphology, and optoelectronic properties. Doped thin films exhibited a uniform hexagonal structure, changed growth orientation, and showed scale-like and needle-like morphologies. The bandgap and rectification speed of Schottky diodes were modified by introducing manganese. This study suggests the potential for affordable high-speed optoelectronic devices.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
Mehdi Javidi, Hooman Karimi Abadeh, Fatemeh Namazi, Hamid Reza Yazdanpanah, Narjes Shirvani Shiri
Summary: This study investigated the synergistic effect of temperature, solution velocity, and sulphuric acid concentration on the corrosion behavior of carbon steel using response surface methodology. The results showed that temperature affected anodic reactions, solution velocity influenced cathodic reactions, and acid concentration altered the corrosion mechanisms by changing the properties of the surface layer.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
R. Sakthivel, Thirumoorthy Kulandaivel, Kirankumar Venkatesan Savunthari, K. Mohanraj, Hans-Uwe Dahms, Aswin kumar Anbalagan, Manjunath Rangasamy, Kien-Voon Kong
Summary: In this study, saturated fatty acids were incorporated with silane to modify viscose fabric, resulting in superhydrophobic and superoleophilic properties. The modified fabric showed excellent separation efficiency for oil and organic solvents, with high absorption capacity. The modified fabric also exhibited durability and retained its properties in harsh conditions.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
Wei Zhang, Hong Lei, Wenqing Liu, Zefang Zhang, Yi Chen, Xiaogang Hu, Xiangshan Ye
Summary: In this study, EDTA-grafted alumina composite abrasives were produced by a two-step process for the CMP of sapphire substrates. Experimental results showed that the modified abrasives exhibited better dispersion properties and significantly improved polishing efficiency, with higher material removal rates and lower surface roughness. The combination of chemical reaction and mechanical action enhanced the CMP performance.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
Shumaila Rafaqat, Bushra Perveen, Warda Raqba, Warda Imran, Arshad Hussain, Naeem Ali
Summary: This study developed a MnP-based biosensor for quantitative measurement of dye concentrations using electrochemical signals. The effects of two different dyes on MnP activity were investigated, with one dye showing inhibitory effects and the other dye having no effect. The study demonstrates the potential application of enzyme-based biosensors in dye detection and toxicological monitoring.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
Jinyan Shi, Oguzhan Yavuz Bayraktar, Baris Bayrak, Burak Bodur, Ali Oz, Gokhan Kaplan, Abdulkadir Cuneyt Aydin
Summary: The elemental composition of precursors is crucial for the performance development of geopolymers. The use of lime instead of metakaolin increases the fluidity and mechanical properties of geopolymers, while the addition of gypsum decreases them. Furthermore, higher lime content exacerbates the negative effect of gypsum.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
Aayush Gupta, Kaveri Ajravat, Loveleen K. Brar, O. P. Pandey, Pandey Rajagopalan
Summary: This study focuses on the performance of Mn3O4-ZnO composite material in wastewater treatment and energy storage applications, and presents a detailed comparative analysis. Results show that the composite material with equal concentrations of Mn3O4 and ZnO exhibits excellent photocatalytic activity and high capacitance.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
V. Murugabalaji, Matruprasad Rout, Harsh Soni, Biranchi Narayan Sahoo
Summary: This study focuses on the corrosion characteristics of AA 7075 and AA 7075 based hybrid composite fabricated using stir casting and hot rolling techniques. The results show that the hybrid composite produced by hot cross rolling exhibits better corrosion resistance compared to the base metal. The addition of a small amount of graphite improves the bonding between the matrix and reinforcements, and the hot cross rolling enhances this bonding, leading to the formation of a strong passivation oxide layer and increased charge transfer resistance, thereby improving corrosion resistance.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
Fangkun Ning, Qinghao Shi, Shuping Kong, Weitao Jia, Lifeng Ma
Summary: The paper investigates a new method of rolling sheets with variable chamfering amounts in both the transversal and normal directions. The feasibility of the technological process was tested through simulation and compared with experimental results. Three important process parameters, temperature, stress, and flow velocity, were used to evaluate the effects on chamfering amount before determining the optimal angle. The spread formula for evaluating the shape quality of the plate after ECR was obtained through testing and theory.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
Aqeel Abbas, M. A. Hussein, Mohamed Javid
Summary: In this study, the AM60 magnesium alloy was processed using high-energy ball milling, and the results showed that different reinforcement agents had certain effects on particle size, crystallite size, lattice strain, and dislocation density.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
D. S. Mahmoud, E. M. Eldesouki, W. M. Abd El-Gawad
Summary: The development of flexible and lightweight microwave-absorbing materials has become a trendy topic. This study focuses on enhancing the microwave-absorbing performance of butadiene-acrylonitrile rubber (NBR) by incorporating novel reinforcing nanofillers. The results show that the NBR nanocomposite with a loading of 16 parts per hundred rubber (phr) of LiFe 20%/Si has the best microwave-absorbing performance.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
