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Divergent Metabolism of -l-Trp-l-Leu in by Hydroxylation and Nucleobase Transfer with Two Cytochrome P450 Enzymes.
J Nat Prod
December 2024
Institut für Pharmazeutische Biologie und Biotechnologie, Fachbereich Pharmazie, Philipps-Universität Marburg, Robert-Koch-Straße 4, Marburg 35037, Germany.
A three-gene cluster from was proven to be responsible for the formation of -l-Trp-l-Leu (cWL) derivatives. An strain harboring the cyclodipeptide synthase (CDPS) gene produced cWL. Expression of the whole cluster or genes of various combinations in revealed different metabolites of cWL by two cytochrome P450 enzymes.
View Article and Find Full Text PDFInvestigation on the Machinability of Polycrystalline ZnS by Micro-Laser-Assisted Diamond Cutting.
Micromachines (Basel)
October 2024
State Key Laboratory of Intelligent Manufacturing Equipment and Technology, School of Mechanical Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, China.
Article Synopsis
- Polycrystalline ZnS is a key infrared optical material known for its excellent optical properties but is challenging to machine due to its soft and brittle nature.
- Recent advancements in in situ laser-assisted diamond cutting have shown to enhance the ultra-precision machining of ZnS by improving its ductile characteristics and reducing microhardness.
- Experimental results demonstrate that this method significantly improves cutting quality, achieving a 73.58% better surface finish and changing the damage patterns during machining, thus providing a valuable approach for high-performance optical systems.
Ultra-sensitive electrochemical immunosensor based on 2D vanadium diselenide (VSe) for efficient detection of pathogens: Salmonella Typhimurium.
Luminescence
September 2024
Department of Physics, Institute of Science, Banaras Hindu University, Varanasi, India.
Layered transition metal dichalcogenides (TMDs), with an extensive surface area, intriguing tunable electrical and optical features, and a distinctive Van der Waals layered structure, yield outstanding sensing properties. Essentially, most TMDs originally existed in the crystallographic phase of a 2H trigonal prismatic structure, which is semiconducting in nature with poor electrocatalytic activity. In contrast, vanadium diselenide (VSe) with its metastable metallic 1 T octahedral crystal structure has been proven to be an outstanding electrode material, embracing exceptional electrocatalytic behavior for various electrochemical (EC) applications.
View Article and Find Full Text PDFCu-Assisted Synthesis of Ultrasharp and Sub-10 nm Gold Nanostars. Applications in Catalysis, Sensing, and Photothermia.
ACS Appl Nano Mater
August 2024
BCMaterials, Basque Center for Materials, Applications, and Nanostructures, UPV/EHU Science Park, Leioa 48940, Spain.
Gold nanostars have shown enormous potential as the main enablers of advanced applications ranging from biomedicine to sensing or catalysis. Their unique anisotropic structure featuring sharp spikes that grow from a central core offers enhanced optical capabilities and spectral tunability. Although several synthesis methods yield NSs of different morphologies and sizes up to several hundred nanometers, obtaining small NSs, while maintaining their plasmonic properties in the near-infrared, has proven challenging and elusive.
View Article and Find Full Text PDFInvestigation of the Crystallographic Evolution Sequence of Nano-Precipitation via HRTEM in Cu-Bearing Ultra-Low Carbon Steel.
Nanomaterials (Basel)
August 2024
State Key Laboratory of Rolling and Automation, Northeastern University, Shenyang 110819, China.
The precipitation behavior of Cu-bearing ultra-low carbon steel after step quenching and tempering at 923 K for 0.5-2.5 h was investigated.
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