On the basis of absolute methods of estimation of molecular weight (sedimentation equilibrium method, high speed sedimentation-diffusion and small-angle X-ray scattering) the molecular weight of ceruloplasmin M=130 000+/-5000 was determined.
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Nat Commun
January 2025
Department of Chemistry, School of Science, Westlake University, Hangzhou, Zhejiang Province, China.
The self-assembly of small molecules through non-covalent interactions is an emerging and promising strategy for building dynamic, stable, and large-scale structures. One remaining challenge is making the non-covalent interactions occur in the ideal positions to generate strength comparable to that of covalent bonds. This work shows that small molecule YAWF can self-assemble into a liquid-crystal hydrogel (LCH), the mechanical properties of which could be controlled by water.
View Article and Find Full Text PDFLife Sci Space Res (Amst)
February 2025
Department of Radiation Oncology, Wake Forest University School of Medicine. Winston-Salem, NC, USA. Electronic address:
Reduced weight-bearing during spaceflight has been associated with musculoskeletal degradation that risks astronaut health and performance in transit and upon reaching deep space destinations. Previous rodent experiments aboard the international space station (ISS) have identified that the spaceflight-induced molecular arthritic phenotype was characterized with an increase in oxidative stress. This study evaluated if treatment with a superoxide dismutase (SOD) mimetic on orbit could prevent spaceflight-induced damage to the knee and hip articular cartilage, and the menisci in rodents.
View Article and Find Full Text PDFInt J Biol Macromol
January 2025
Mines Paris, PSL University, Center for Materials Forming (CEMEF), UMR CNRS 7635, CS 10207, Rue Claude Daunesse, 06904 Sophia Antipolis, France. Electronic address:
3D printing of polysaccharide solutions is widely recognized as a highly promising method in the biomedical field for achieving complex customized shapes. One of the main challenges is in selecting conditions, in particular, the rheological properties of the system, to retain the printed shape. For the first time, the direct ink writing (DIW) is successfully applied to neat carboxymethyl cellulose (CMC) solutions without any additives or crosslinking, only by adjusting solutions' rheological properties.
View Article and Find Full Text PDFInt J Biol Macromol
January 2025
National Engineering Laboratory for Resource Development of Endangered Crude, Drugs in Northwest China, Shaanxi Normal University, Xi'an 710119, China; Key Laboratory of Medicinal Resources and Natural Pharmaceutical Chemistry (Shaanxi Normal University), The Ministry of Education, Xi'an 710119, China; College of Life Sciences, Shaanxi Normal University, Xi'an 710119, China. Electronic address:
Liver fibrosis is a significant precursor to cirrhosis and liver cancer, yet effective treatments remain elusive. Our previous studies demonstrated that Bletilla striata polysaccharide (BSP) has therapeutic effects, though it performed poorly at medium concentrations. To address this limitation, BSP underwent selenization modification.
View Article and Find Full Text PDFInt J Biol Macromol
January 2025
College of Life Sciences, Northwest Normal University, Lanzhou 730070, China; Gansu Engineering Research Center of High Value-added Utilization of Distinctive Agricultural Products, Lanzhou 730070, China. Electronic address:
The polysaccharide chitosan possesses broad-spectrum antimicrobial properties and has proven effective in controlling various postharvest diseases in fruits. Nevertheless, the fundamental mechanisms underlying its action remain unclear. In this study, the antifungal effects of chitosan with different molecular weights against Fusarium avenaceum, a pathogen causing root rot in Angelica sinensis, were evaluated.
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