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symbiosis improves amino acid and secondary metabolite biosynthesis of tungsten-stressed soybean ().
Front Plant Sci
April 2024
Molecular Systems Biology Unit, Department of Functional and Evolutionary Ecology, University of Vienna, Vienna, Austria.
The industrially important transition metal tungsten (W) shares certain chemical properties with the essential plant micronutrient molybdenum and inhibits the activity of molybdoenzymes such as nitrate reductase, impacting plant growth. Furthermore, tungsten appears to interfere with metabolic processes on a much wider scale and to trigger common heavy metal stress response mechanisms. We have previously found evidence that the tungsten stress response of soybeans () grown with symbiotically associated N-fixing rhizobia () differs from that observed in nitrogen-fertilized soy plants.
View Article and Find Full Text PDFSynthesis and Magnetic, Optical, and Electrocatalytic Properties of High-Entropy Mixed-Metal Tungsten and Molybdenum Oxides.
Inorg Chem
May 2023
Department of Chemistry, The Pennsylvania State University, University Park, Pennsylvania 16802, United States.
High-entropy oxides (HEOs) are of interest for their unique physical and chemical properties. Significant lattice distortions, strain, and tolerance for high-vacancy concentrations set HEOs apart from single-metal or mixed-metal oxides. Herein, we synthesized and characterized the structures and compositions, along with the optical, magnetic, and electrocatalytic properties, of two families of high-entropy mixed-metal tungsten and molybdenum oxides, AWO and BMoO, where A and B are 3d transition metals.
View Article and Find Full Text PDFTuning the Metal-Insulator Transition Properties of VO Thin Films with the Synergetic Combination of Oxygen Vacancies, Strain Engineering, and Tungsten Doping.
Nanomaterials (Basel)
April 2022
Department of Physics, Faculty of Science, Islamic University of Madinah, AlMadinah Almonawara 42351, Saudi Arabia.
Vanadium oxide (VO) is considered a Peierls-Mott insulator with a metal-insulator transition (MIT) at T = 68° C. The tuning of MIT parameters is a crucial point to use VO within thermoelectric, electrochromic, or thermochromic applications. In this study, the effect of oxygen deficiencies, strain engineering, and metal tungsten doping are combined to tune the MIT with a low phase transition of 20 °C in the air without capsulation.
View Article and Find Full Text PDFHierarchical WO Ultrabroadband Absorbers and Photothermal Converters Grown from Femtosecond Laser-Induced Periodic Surface Structures.
ACS Appl Mater Interfaces
April 2022
Shanghai Key Laboratory of Materials Laser Processing and Modification, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China.
Oxygen-vacancy-rich WO absorbers are gaining increasing attention because of their extensive absorbance-based applications in near-infrared shielding, photocatalysis, sterilization, interfacial evaporator and electrochromic, photochromic, and photothermal fields. Thermal treatment in an oxygen-deficient atmosphere enables us to prepare WO but lacks the capacity for finely manipulating the grown structures. In this work, we present that laser-induced periodic surface structure (LIPSS) obtained by femtosecond laser ablation is a good template to grow various hierarchical WO ultrabroadband absorbers and photothermal converters by thermal oxidation annealing in air.
View Article and Find Full Text PDFChalcogen Bonding in the Molecular Dimers of WCh (Ch = S, Se, Te): On the Basic Understanding of the Local Interfacial and Interlayer Bonding Environment in 2D Layered Tungsten Dichalcogenides.
Int J Mol Sci
January 2022
Department of Chemical System Engineering, School of Engineering, The University of Tokyo, 7-3-1, Tokyo 113-8656, Japan.
Layered two-dimensional transition metal dichalcogenides and their heterostructures are of current interest, owing to the diversity of their applications in many areas of materials nanoscience and technologies. With this in mind, we have examined the three molecular dimers of the tungsten dichalcogenide series, (WCh) (Ch = S, Se, Te), using density functional theory to provide insight into which interactions, and their specific characteristics, are responsible for the interfacial/interlayer region in the room temperature 2H phase of WCh crystals. Our calculations at various levels of theory suggested that the Te···Te chalcogen bonding in (WTe) is weak, whereas the Se···Se and S···S bonding interactions in (WSe) and (WS), respectively, are of the van der Waals type.
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