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Transient pulsed discharge preparation of graphene aerogel supports asymmetric Cu cluster catalysts promote CO electroreduction.
Nat Commun
January 2025
School of Mechatronical Engineering, Beijing Institute of Technology, Beijing, 100081, China.
Designing asymmetrical structures is an effective strategy to optimize metallic catalysts for electrochemical carbon dioxide reduction reactions. Herein, we demonstrate a transient pulsed discharge method for instantaneously constructing graphene-aerogel supports asymmetric copper nanocluster catalysts. This process induces the convergence of copper atoms decomposed by copper chloride onto graphene originating from the intense current pulse and high temperature.
View Article and Find Full Text PDFSeparation of deaminated impurities from the desired oligonucleotides using supercritical fluid chromatography.
J Chromatogr A
January 2025
Graduate School of Pharmaceutical Sciences, Osaka University, 1-6 Yamadaoka, Suita, Osaka 565-0871, Japan. Electronic address:
With recent advancements concerning the optimization of the analytical conditions, it is feasible to analyze polar molecules using supercritical fluid chromatography (SFC). In this study, the applicability of SFC is evaluated for analyzing 5-, 10-, 15-, and 18-mer oligonucleotides, and SFC is then applied to analyze deaminated products, which are side products generated during oligonucleotide synthesis. These side products are difficult to separate from the target oligonucleotide, with the difficulty varying depending on the deamination position and sequences, even when using ion-pair reversed-phase liquid chromatography (IP-RPLC), a common method for oligonucleotide analysis.
View Article and Find Full Text PDFMultilayer Composite Electrodes for Simultaneously Improved Mechanical and Electrochemical Performance.
ACS Appl Mater Interfaces
January 2025
The Harold & Inge Marcus Department of Industrial & Manufacturing Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802, United States.
Structural batteries offer a transformative approach to integrate energy storage directly into the frameworks of electric vehicles and aircrafts, enabling multifunctional construction. This study presents a nacre-inspired multilayer composite electrode fabricated via the cold sintering process (CSP), achieving a balance of enhanced electrochemical performance and mechanical robustness. The composite electrode combines active electrode materials with a ductile conducting polymer-carbon-mixture phase in a layered architecture.
View Article and Find Full Text PDFNitroxide-Containing Poly(2-oxazoline)s Show Dual-Stimuli-Responsive Behavior and Radical-Trapping Activity.
Biomacromolecules
January 2025
Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, VIC 3052, Australia.
2,2,6,6-Tetramethylpiperidine--oxyl (TEMPO) structures possess potent antioxidant activities for biomedical applications. TEMPO immobilization on hydrophilic polymers is a powerful strategy to improve its properties; however, it is mostly limited to reversible-deactivation radical polymerizations or postpolymerization approaches. Here, we immobilized TEMPO units on a hydrophilic poly(2-ethyl-2-oxazoline) (PEtOx) backbone through cationic ring-opening polymerization (CROP) of a new 2-oxazoline monomer bearing a methoxy-protected TEMPO 2-substituent with 2-ethyl-2-oxazoline (EtOx).
View Article and Find Full Text PDFHigh-Throughput Quantification and Characterization of Dual Payload mRNA/LNP Cargo via Deformulating Size Exclusion and Ion Pairing Reversed Phase Assays.
Anal Chem
January 2025
Waters Corporation, 34 Maple St., Milford, Massachusetts 01757, United States.
Therapeutic drugs and multivalent vaccines based on the delivery of mRNA via lipid nanoparticle (LNP) technologies are expected to dominate the biopharmaceutical industry landscape in the coming years. Many of these innovative therapies include several nucleic acid components (e.g.
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