Three-dimensional polymeric networks called hydrogels have drawn a lot of interest in a variety of biomedical applications because of their distinctive qualities, like high water content and biocompatibility. Hydrogels can be strengthened mechanically and become more stable via cross-linking. In this study, we described the synthesis and characterization of a cross-linked hydrogel made of polyethylene glycol (PEG) capable of absorbing drug. The hydrogel was created by using a polymerization procedure to cross-link PEG chains. In order to allay this worry, we added particular functional groups to the hydrogel matrix that had a strong affinity for glutaraldehyde. These functional groups made it easier for excess glutaraldehyde to be absorbed and sequestered inside the hydrogel, lowering its cytotoxic potential. After incubation with the hydrogel, the residual glutaraldehyde concentration in solution was measured in order to assess the glutaraldehyde absorption potential.
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http://dx.doi.org/10.4103/jpbs.jpbs_540_23 | DOI Listing |
Bioconjug Chem
January 2025
Biochemistry and Molecular Biophysics, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States.
Ulcerative colitis (UC) is a chronic inflammatory bowel disease (IBD). CT imaging with contrast agents is commonly used for visualizing the gastrointestinal (GI) tract in UC patients. Contrast agents that provide enhanced imaging performance are highly valuable in this field.
View Article and Find Full Text PDFAngew Chem Int Ed Engl
January 2025
Julius-Maximilians-Universitat Wurzburg, Institute for Pharmacy and Chemistry, Am Hubland, 97074, Würzbrug, GERMANY.
Therapeutic proteins are commonly conjugated with polymers to modulate their pharmacokinetics but often lack a description of the polymer-protein interaction. We deployed limited proteolysis mass spectrometry (LiP-MS) to reveal the interaction of polyethylene glycol (PEG) and PEG alternative polymers with interferon-α2a (IFN). Target conjugates were digested with the specific protease trypsin and a "heavy" 15N-IFN wild type (IFN-WT) for time-resolved quantification of the cleavage dynamics.
View Article and Find Full Text PDFJ Biomed Mater Res B Appl Biomater
January 2025
Key Laboratory of Advanced Technology for Materials of Chinese Education Ministry, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu, China.
Burns are complex traumatic injuries that lead to severe physical and psychological problems due to the prolonged healing period and resulting physical scars. Owing to their versatility, hydrogels can be loaded with various functional factors, making them promising wound dressings. However, many hydrogel dressings cannot support cell survival for a long time, thereby delaying the process of tissue repair.
View Article and Find Full Text PDFPlant Genome
March 2025
Department of Agricultural Biotechnology, Faculty of Agriculture, Ondokuz Mayis University, Samsun, Turkey.
Synergistic and antagonistic relationships between cytokinins and other plant growth regulators are important in response to changing environmental conditions. Our study aimed to determine the functions of SlHP2 and SlHP3, two members of cytokinin signaling in tomato, in drought stress response using CRISPR/Cas9-mediated mutagenesis. Ten distinct genome-edited lines were generated via Agrobacterium tumefaciens-mediated gene transfer and confirmed through Sanger sequencing.
View Article and Find Full Text PDFCell Struct Funct
January 2025
Department of Cell Biology, Graduate School of Medical Sciences, Tokushima University.
The motility of biological molecular motors has typically been analyzed by in vitro reconstitution systems using motors isolated and purified from organs or expressed in cultured cells. The behavior of biomolecular motors within cells has frequently been reported to be inconsistent with that observed in reconstituted systems in vitro. Although this discrepancy has been attributed to differences in ionic strength and intracellular crowding, understanding how such parameters affect the motility of motors remains challenging.
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