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High-Density Polyethylene Janus Fibrous Membrane with Enhanced Breathability and Moisture Permeability via PDA Assisted Hydrophilic Modification.
Macromol Rapid Commun
January 2025
State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai, 201620, China.
Functional fibrous membranes with high mechanical properties are intensively developed for different application fields. In this study, to enhance moisture and air permeability without compromising mechanical strength, a facile float-surface modification strategy is employed to fabricate Janus fibrous membranes with distinct hydrophobicity/hydrophilicity using the high-density polyethylene (HDPE) fibrous membranes. By coating one side of the HDPE fibrous membranes with polydopamine (PDA) and a superhydrophilic polyelectrolyte, the obtained Janus HDPE fibrous membranes demonstrate an excellent water transmission rate (577.
View Article and Find Full Text PDFPolysulfide Tandem Conversion for Lithium-Sulfur Batteries.
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January 2025
State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing, 100029, P. R. China.
The electrocatalytic conversion of 16-electron multistep polysulfides is crucial for lithium-sulfur batteries, while it is hard to achieve compatibility between intricate sulfur reduction processes and appropriate catalysts. Herein, a tandem conversion strategy is reported to boost multi-step intermediate reactions of polysulfides transformation by designing an electrocatalyst featuring cobalt and zinc sites (Co/Zn), where the Zn serve as sites for the conversion of long-chain lithium polysulfides (LiPSs), promoting the transformation of S to LiS; the Co sites accelerate the kinetics of the subsequent reduction of LiS. This tandem catalysis method not only enhances the conversion of the initial reactants but also provides additional support for the intermediates, thereby facilitating subsequent reactions to maximize capacity.
View Article and Find Full Text PDFPolymers for mRNA Delivery.
Wiley Interdiscip Rev Nanomed Nanobiotechnol
January 2025
Shanghai Key Laboratory of Regulatory Biology, School of Life Sciences, East China Normal University, Shanghai, China.
mRNA delivery has emerged as a transformative approach in biotechnology and medicine, offering a versatile platform for the development of novel therapeutics. Unlike traditional small molecule drugs or protein-based biologics, mRNA therapeutics have the unique ability to direct cells to generate therapeutic proteins, allowing for precise modulation of biological processes. The delivery of mRNA into target cells is a critical step in realizing the therapeutic potential of this technology.
View Article and Find Full Text PDFA Wireless Health Monitoring System Accomplishing Bimodal Decoupling Based on an "IS"-Shaped Multifunctional Conductive Hydrogel.
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January 2025
Engineering Research Center of Western Resource Innovation Medicine Green Manufacturing, Ministry of Education, School of Chemical Engineering, Northwest University, Xi'an, 710127, China.
Flexible wearable sensors with bimodal functionality offer substantial value for human health monitoring, as relying on a single indicator is insufficient for capturing comprehensive physiological information. However, bimodal sensors face multiple challenges in practical applications, including mutual interference between various modalities, and integration of excellent mechanical properties, interfacial adhesion, environmental adaptability and biocompatibility. Herein, the multifunctional hydrogel, synthesized through radical grafting and supramolecular self-crosslinking reactions, exhibits excellent thermal sensitivity (TCR = -1.
View Article and Find Full Text PDFA trimetallic bismuth(I)-based allyl cation.
Nat Chem
January 2025
Max-Planck-Institut für Kohlenforschung, Mülheim an der Ruhr, Germany.
The chemistry of low-valent bismuth compounds has recently unlocked new concepts in catalysis and unique electronic structure fundamentals. In this work, we describe the synthesis and characterization of a highly reduced bismuth salt featuring a cationic core based on three contiguous Bi(I) centres. The triatomic bismuth-based core exhibits an electronic configuration that mimics the canonical description of the archetypical carbon-based π-allyl cation.
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