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Metal-organic cages based catalytic hybrid hydrogels for enhanced wound healing: Antibacterial and regenerative effects of Zr-MOC/chitosan composites hydrogel.
Int J Biol Macromol
April 2025
State Key Laboratory Base of Eco-chemical Engineering, College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, China; Institute of High Performance Polymers, Qingdao University of Science and Technology, Qingdao 266042, China. Electronic address:
Metal-organic cages (MOCs), assembled by the coordination of metal nodes with organic ligands, offer excellent solvent dispersion, functionalization potential, and abundant binding sites, making them ideal for hybrid hydrogel synthesis. Herrin, a novel Zr-MOC/CS hybrid hydrogel was developed by crosslinking Zr-based metal-organic cages (Zr-MOC) and chitosan (CS) using dibenzaldehyde-functionalized polyethylene glycol (DF-PEG) as crosslinker, marking the first instance of incorporating Zr-MOC into a hydrogel matrix. The composite hydrogel leverages the catalytic activity of Zr-MOC to convert trace HO into hydroxyl radicals (·OH), delivering enhanced antibacterial performance.
View Article and Find Full Text PDFThe Role of GABA Receptors in Anesthesia and Sedation: An Updated Review.
CNS Drugs
January 2025
Department of Anesthesiology, Jefferson Surgical Center Endoscopy, Sidney Kimmel Medical College, Jefferson Health, 111 S 11th Street, #7132, Philadelphia, PA, 19107, USA.
GABA (γ-aminobutyric acid) receptors are constituents of many inhibitory synapses within the central nervous system. They are formed by 5 subunits out of 19 various subunits: α1-6, β1-3, γ1-3, δ, ε, θ, π, and ρ1-3. Two main subtypes of GABA receptors have been identified, namely GABAA and GABAB.
View Article and Find Full Text PDFCoordination cages integrated into swelling poly(ionic liquid)s for guest encapsulation and separation.
Nat Commun
May 2024
State Key Laboratory of Petroleum Molecular & Process Engineering, Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, 200062, PR China.
Coordination cages have been widely reported to bind a variety of guests, which are useful for chemical separation. Although the use of cages in the solid state benefits the recycling, the flexibility, dynamicity, and metal-ligand bond reversibility of solid-state cages are poor, preventing efficient guest encapsulation. Here we report a type of coordination cage-integrated solid materials that can be swelled into gel in water.
View Article and Find Full Text PDFCrystalline Phase Engineering to Modulate the Interfacial Interaction of the Ruthenium/Molybdenum Carbide for Acidic Hydrogen Evolution.
Nano Lett
May 2024
Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201210, P. R. China.
Ruthenium (Ru) is an ideal substitute to commercial Pt/C for the acidic hydrogen evolution reaction (HER), but it still suffers from undesirable activity due to the strong adsorption free energy of H* (Δ). Herein, we propose crystalline phase engineering by loading Ru clusters on precisely prepared cubic and hexagonal molybdenum carbide (α-MoC/β-MoC) supports to modulate the interfacial interactions and achieve high HER activity. Advanced spectroscopies demonstrate that Ru on β-MoC shows a lower valence state and withdraws more electrons from the support than that of Ru on α-MoC, indicative of a strong interfacial interaction.
View Article and Find Full Text PDFMolecular Insights into Sequence-Specific Protein Hydrolysis by a Soluble Zirconium-Oxo Cluster Catalyst.
J Am Chem Soc
April 2024
Department of Chemistry, KU Leuven, 3001 Leuven, Belgium.
The development of catalysts for controlled fragmentation of proteins is a critical undertaking in modern proteomics and biotechnology. {ZrO}-based metal-organic frameworks (MOFs) have emerged as promising candidates for catalysis of peptide bond hydrolysis due to their high reactivity, stability, and recyclability. However, emerging evidence suggests that protein hydrolysis mainly occurs on the MOF surface, thereby questioning the need for their highly porous 3D nature.
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