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Circular mRNA Vaccine against SARS-COV-2 Variants Enabled by Degradable Lipid Nanoparticles.
ACS Appl Mater Interfaces
January 2025
Suzhou CureMed Biopharma Technology Co., Ltd., Suzhou 215125, China.
The emergence of mRNA vaccines offers great promise and a potent platform in combating various diseases, notably COVID-19. Nevertheless, challenges such as inherent instability and potential side effects of current delivery systems underscore the critical need for the advancement of stable, safe, and efficacious mRNA vaccines. In this study, a robust mRNA vaccine (cmRNA-1130) eliciting potent immune activation has been developed from a biodegradable lipid with eight ester bonds in the branched tail (AX4) and synthetic circular mRNA (cmRNA) encoding the trimeric Delta receptor binding domain of the SARS-CoV-2 spike protein.
View Article and Find Full Text PDFNondestructive Monitoring of Textile-Reinforced Cementitious Composites Subjected to Freeze-Thaw Cycles.
Materials (Basel)
December 2024
Department of Mechanics of Materials and Constructions, Faculty of Engineering, Vrije Universiteit Brussel, B-1050 Brussels, Belgium.
Cementitious materials are susceptible to damage not only from mechanical loading, but also from environmental (physical, chemical, and biological) factors. For Textile-Reinforced Cementitious (TRC) composites, durability poses a significant challenge, and a reliable method to assess long-term performance is still lacking. Among various durability attacks, freeze-thaw can induce internal cracking within the cementitious matrix, and weaken the textile-matrix bond.
View Article and Find Full Text PDFDevelopment and thorough evaluation of a multi-omics sample preparation workflow for comprehensive LC-MS/MS-based metabolomics, lipidomics and proteomics datasets.
Talanta
December 2024
Hyphenated Mass Spectrometry Laboratory, Faculty of Science, University of Technology Sydney, PO Box 123, Broadway, 2007 NSW, Australia; School of Life Sciences, Faculty of Science, University of Technology Sydney, PO Box 123, Broadway, 2007 NSW, Australia.
The importance of sample preparation selection if often overlooked particularly for untargeted multi-omics approaches that gained popularity in recent years. To minimize issues with sample heterogeneity and additional freeze-thaw cycles during sample splitting, multiple -omics datasets (e.g.
View Article and Find Full Text PDFEpigenetic Regulation by Histone Methylation and Demethylation in Freeze-Tolerant Frog Kidney.
Cell Biochem Funct
December 2024
Institute of Biochemistry and Department of Biology, Carleton University, Ottawa, Ontario, Canada.
The wood frog (Rana sylvatica) endures whole-body freezing over the winter, with extensive extracellular ice formation and halted physiological activities. Epigenetic mechanisms, including reversible histone lysine methylation, enable quick alterations in gene expression, helping to maintain viability during freeze-thaw cycles. The present study evaluated eight histone lysine methyltransferases (KMTs), 10 histone lysine demethylases (KDMs), and 11 histone marks in wood frog kidneys.
View Article and Find Full Text PDFDeeper insights into the stability of oxylipins in human plasma across multiple freeze-thaw cycles and storage conditions.
J Pharm Biomed Anal
November 2024
Centro de Metabolómica y Bioanálisis (CEMBIO), Facultad de Farmacia, Universidad San Pablo-CEU, CEU Universities, Urbanización Montepríncipe, 28660 Boadilla del Monte, Madrid, Spain. Electronic address:
Oxylipins are signaling lipids derived from the oxidation of polyunsaturated fatty acids (PUFAs). In lipidomic studies, human plasma may be subjected to various storage conditions and freeze-thaw cycles, which may impact the analysis of these compounds. In this study, we used liquid chromatography coupled with mass spectrometry (LC-MS) to examine the influence of up to five freeze-thaw cycles (FTCs) on free and total (mostly esterified) oxylipins in human plasma and the influence of temperature and storage duration (4 °C for up to 120 h and -20 °C and -80 °C for 1-98 days) in the presence or absence of butylated hydroxytoluene (BHT) on extracted oxylipins stored in LC-MS amber vials.
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