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Cationic Polyhedral Chalcogenaboranes: Activation without breaking Wade's Rules.
Angew Chem Int Ed Engl
January 2025
University Pardubice Faculty of Chemical Technology: Univerzita Pardubice Fakulta Chemicko-Technologicka, Department of General and Inorganic Chemistry, CZECHIA.
Wade's rules are a well-established tool for the description of the geometry of inorganic clusters. Among others, they state that a decrease or increase in charge is always accompanied by a change in the number of skeletal electron pairs (SEPs). This work reports the synthesis of the first cationic chalcogenaboranes closo-[12-X-2-IPr-1-EB11H10]BF4 (X = H, I; E = S, Se 3a/b, 4a/b) featuring the same SEP count as their neutral precursors, EB11H11, but bearing a positive charge.
View Article and Find Full Text PDFSolid waste management and resource recovery during the 4-crew 180-day CELSS integrated experiment.
Life Sci Space Res (Amst)
February 2025
China Astronaut Research and Training center, Beijing 100094, PR China.
In order to explore the management and treatment methods of solid waste in the Controlled Ecological Life Support System (CELSS) of future lunar bases, during the 4-crew 180-day integrated experiment, the Solid Waste Management and Treatment System (SWMTS) was built, in which the treatment of recyclable solid waste such as inedible plant parts and human excrement was completed through a combination of biological aerobic composting and high-temperature oxidation. Basic data on the types and amounts of solid waste generated during the 4-crew 180-day experiment mission were obtained. There were six types of solid wastes, including the work support wastes, the household support wastes, the plant cultivation wastes, the plant-based wastes, and crew feces.
View Article and Find Full Text PDFDon't Be Surprised When These Surprise You: Some Infrequently Studied Sphingoid Bases, Metabolites, and Factors That Should Be Kept in Mind During Sphingolipidomic Studies.
Int J Mol Sci
January 2025
School of Biological Sciences and The Petit Institute for Bioengineering and Biosciences, Georgia Institute of Technology, Atlanta, GA 30332, USA.
Sphingolipidomic mass spectrometry has provided valuable information-and surprises-about sphingolipid structures, metabolism, and functions in normal biological processes and disease. Nonetheless, many noteworthy compounds are not routinely determined, such as the following: most of the sphingoid bases that mammals biosynthesize de novo other than sphingosine (and sometimes sphinganine) or acquire from exogenous sources; infrequently considered metabolites of sphingoid bases, such as N-(methyl)-derivatives; "ceramides" other than the most common N-acylsphingosines; and complex sphingolipids other than sphingomyelins and simple glycosphingolipids, including glucosyl- and galactosylceramides, which are usually reported as "monohexosylceramides". These and other subspecies are discussed, as well as some of the circumstances when they are likely to be seen (or present and missed) due to experimental conditions that can influence sphingolipid metabolism, uptake from the diet or from the microbiome, or as artifacts produced during extraction and analysis.
View Article and Find Full Text PDFStudying the Oncolytic Activity of Strains Against Hepatoma, Glioma, and Pancreatic Cancer and .
Microorganisms
January 2025
Scientific and Educational Center, Molecular Bases of Interaction of Microorganisms and Human of the Center for Personalized Medicine of Federal State Budgetary Scientific Institution, Institute of Experimental Medicine, Acad. Pavlov Street, 12, 197022 Saint Petersburg, Russia.
Background: Cancer remains a leading cause of mortality globally. Conventional treatment modalities, including radiation and chemotherapy, often fall short of achieving complete remission, highlighting the critical need for novel therapeutic strategies. One promising approach involves the oncolytic potential of Group A (GAS) strains for tumor treatment.
View Article and Find Full Text PDFFunctional analysis and modification of anti-lipopolysaccharide factor (ALF) from the freshwater crab Sinopotamon henanense and preparation of a novel ShALF6-2 K-AgNPs complex.
Int J Biol Macromol
January 2025
School of Life Science, Shanxi University, Taiyuan, Shanxi Province, China. Electronic address:
Overuse of antibiotics has led to the emergence of drug-resistant bacteria and environmental problems. Antimicrobial peptides (AMPs) and silver nanoparticles (AgNPs) can potentially replace antibiotics. Therefore, it is possible to create composite nanostructures with synergistic bactericidal properties by combining AgNPs and AMPs.
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