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Towards Improved Peptidic α-Ketoamide Inhibitors of the Plasmodial Subtilisin-Like SUB1: Exploration of N-Terminal Extensions and Cyclic Constraints.
ChemMedChem
January 2025
Université de Montpellier: Universite de Montpellier, IBMM, Pôle Chimie Balard, Campus CNRS, 34093, Montpellier, FRANCE.
After more than 15 years of decline, the Malaria epidemy has increased again since 2017, reinforcing the need to identify drug candidates active on new targets involved in at least two biological stages of the Plasmodium life cycle. The SUB1 protease, which is essential for parasite egress in both hepatic and blood stages, would meet these criteria. We previously reported the structure-activity relationship analysis of α-ketoamide-containing inhibitors encompassing positions P4-P2'.
View Article and Find Full Text PDFFormation Water Genesis Mechanism of Deep Tight Sandstone Gas Reservoirs in the Southern Ordos Basin and Its Indication for Development.
ACS Omega
January 2025
School of Petroleum Engineering, Xi'an Shiyou University, Xi'an, Shaanxi 710016, China.
By analyzing the chemical characteristics of the formation water in the tight sandstone reservoirs of the P2x8 and P1s1 in the southern Ordos Basin, combined with rock mineral composition, reservoir physical properties, and well gas testing data, the genesis mechanism of formation water and its guiding role in gas reservoir development were discussed. The results show that the formation water is derived from the mixture of syngenetic seawater and meteoric water and has undergone remarkable modification by water-rock interactions, showing characteristics of Ca enrichment and Mg and SO depletion. The albitization of plagioclase in reservoir rock components causes Ca excess and Na deficiency in formation water, while the chloritization of albite leads to the increase of Na.
View Article and Find Full Text PDFStudy on the effect of acid fracturing fluid on pore structure of middle to high rank coal.
Sci Rep
January 2025
College of Mining, Guizhou University, Guiyang, 550025, Guizhou, China.
Acid fracturing fluids can effectively improve the microporous structure of coal, thereby enhancing the permeability of coal seam and the efficiency of gas drainage. To explore the effects of acid fracturing fluids on the pore structure modification of coal samples from different coal ranks, hydrochloric acid-based acid fracturing fluids were prepared and used to soak four types of medium to high-rank coal in an experiment. High-pressure mercury intrusion and liquid nitrogen adsorption techniques results demonstrated that the acid fracturing fluid can effectively alter the pore structure of coal.
View Article and Find Full Text PDFUnidirectional moisture-conducting green fabrics prepared by a one-step electrospray technique.
RSC Adv
January 2025
School of Materials Design and Engineering, Beijing Institute of Fashion Technology Beijing China
Unidirectional moisture-conducting fabrics were prepared by electrospraying polyvinylidene fluoride (PVDF) and polyvinyl chloride (PVC) onto three green fabric substrates, namely cotton, hemp, and modal. Experiments were conducted to examine the effects of coating thickness, coating material, and substrate material on the moisture conductivity of the fabrics. The electrospraying technique was effective in forming uniform and strongly adhered PVDF and PVC coatings on the fabric substrates, and the coating thickness and material type had a significant effect on the fabric's moisture conductivity.
View Article and Find Full Text PDFGraded porous scaffold mediates internal fluidic environment for 3D in vitro mechanobiology.
Comput Biol Med
January 2025
Department of Biomedical Engineering, Faculty of Science and Engineering, Swansea University, Swansea, United Kingdom; Zienkiewicz Institute for Modelling Data and AI, Swansea University, Swansea, United Kingdom. Electronic address:
Most cell types are mechanosensitive, their activities such as differentiation, proliferation and apoptosis, can be influenced by the mechanical environment through mechanical stimulation. In three dimensional (3D) mechanobiological in vitro studies, the porous structure of scaffold controls the local mechanical environment that applied to cells. Many previous studies have focused on the topological design of homogeneous scaffold struts.
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