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Atomized Neutrophil Membrane-coated MOF Nanoparticles for Direct Delivery of Dexamethasone for Severe Pneumonia.
Front Biosci (Landmark Ed)
January 2025
Institute of Translational Medicine, Shanghai University, 200444 Shanghai, China.
Background: Dexamethasone has proven life-saving in severe acute respiratory syndrome (SARS) and COVID-19 cases. However, its systemic administration is accompanied by serious side effects. Inhalation delivery of dexamethasone (Dex) faces challenges such as low lung deposition, brief residence in the respiratory tract, and the pulmonary mucus barrier, limiting its clinical use.
View Article and Find Full Text PDFVesicle-Encapsulated Chemosensing Ensembles Allow Monitoring of Transmembrane Uptake Coupled with Enzymatic Reactions.
Angew Chem Int Ed Engl
January 2025
School of Science, Constructor University, Campus Ring 1, 28759, Bremen, Germany.
Compartmentalized models with coupled catalytic networks are considered as "protocells" in the context of research related to the origin of life. To model the kinetics of a simple cellular uptake-metabolism process, we use a compartmentalized protocell system that combines liposome-encapsulated intravesicular reporter pairs with co-encapsulated enzymes to monitor the membrane transport of a substrate (analyte uptake) and its subsequent enzymatic reaction inside the vesicles (metabolism to the product). The intravesicular chemosensing ensembles consist of the macrocycles cucurbit[7]uril or p-sulfonatocalix[4]arene and matching fluorescent dyes to set up suitable reporter pairs.
View Article and Find Full Text PDFMolecule self-assembly of hydrangea-shaped hollow O, Cl -codoped graphite-phase carbon nitride microspheres for efficient N-(1,3-dimethyl butyl)-N'-phenyl-p-phenylenediamine quinone photodegradation and bacteria disinfection.
J Colloid Interface Sci
April 2025
College of Materials and Chemistry, China Jiliang University, 258 Xueyuan Street, Xiasha Higher Education Zone, Hangzhou 310018, China. Electronic address:
6PPD-quinone (6PPD-Q) as a derivative of the rubber antioxidant N-(1,3-dimethylbutyl)-N'-phenyl-p-phenylenediamine (6PPD), is attracting intensive attention due to the significant hazard to ecosystems. However, the effective management of this type of contaminant has been scarcely reported. Hydrangea-like hollow O, Cl-codoped graphite-phase carbon nitride microspheres (HHCN), featuring open pores were readily prepared by molecular self-assembly and utilized to address 6PPD-Q in an aqueous system for the first time.
View Article and Find Full Text PDFMOF-Derived Hierarchically Porous Carbon with Orthogonal Channels for Advanced Na-Se Batteries.
Small
January 2025
School of Materials Science and Engineering, South China University of Technology, Guangzhou, 510641, China.
Article Synopsis
- Na-Se batteries are promising alternatives to lithium-ion batteries due to their high capacity and natural abundance, but face challenges like volume expansion and polyselenide shuttling.
- The research introduces a novel Se/HPC (Se encapsulated in hierarchically porous carbon) that effectively contains Se, mitigates expansion issues, and enhances charge transfer, resulting in improved electrochemical performance.
- The study also highlights the beneficial Se─C bond for sodium adsorption and diffusion, suggesting future directions for designing advanced electrode materials using MOF-derived structures.
Experimental assessment and analysis of mass transport limiting current density in water vapor-fed polymer electrolyte membrane electrolyzers.
Sci Rep
December 2024
Department of Mechanical Engineering, Carnegie Mellon University, Pittsburgh, PA, USA.
Polymer electrolyte membrane water electrolyzers (PEMWEs) are a critical technology for efficient hydrogen production to decarbonize fuels and industrial feedstocks. To make hydrogen cost-effective, the overpotentials across the cell need to be decreased and platinum-group metal loading reduced. One overpotential that needs to be better understood is due to mass transport limitations from bubble formation within the porous transport layer (PTL) and anode catalyst layer (ACL), which can lead to a reduction in performance at typical operating current densities.
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