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The Role of Long-Range Interactions Between High-Entropy Single-Atoms in Catalyzing Sulfur Conversion Reactions.
Adv Mater
January 2025
School of Materials Science and Engineering, University of Science and Technology of China, Shenyang, 110016, China.
Sulfur conversion reactions are the foundation of lithium-sulfur batteries but usually possess sluggish kinetics during practical battery operation. Herein, a high-entropy single-atom catalyst (HESAC) is synthesized for this process. In contrast to conventional dual-atom catalysts that form metal-metal bonds, the center metal atoms in HESAC are not bonded but exhibit long-range interactions at a sub-nanometer distance (<9 Å).
View Article and Find Full Text PDFTime-resolved single-cell secretion analysis microfluidics.
Lab Chip
January 2025
Department of Biomedical Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon Tong, Hong Kong, China.
Revealing how individual cells alter their secretions over time is crucial for understanding their responses to environmental changes. Key questions include: When do cells modify their functions and states? What transitions occur? Insights into the kinetic secretion trajectories of various cell types are essential for unraveling complex biological systems. This review highlights seven microfluidic technologies for time-resolved single-cell secretion analysis: 1.
View Article and Find Full Text PDFPlatinum-Nickel@High-Entropy Alloy Core@Satellite Nanowires as Efficient Bifunctional Electrocatalysts for PEMFC.
Nano Lett
January 2025
College of Energy, Xiamen University, Xiamen 361102, China.
The optimized composition and precisely tailored structure configuration play critical roles in enhancing the catalytic reaction kinetics. Here we report a distinctive core@satellite strategy for designing the advanced platinum-nickel@platinum-nickel-copper-cobalt-indium high-entropy alloy nanowires (PtNi@HEA NWs) as efficient bifunctional catalysts in the proton exchange membrane fuel cell. Impressively, the PtNi@HEA NWs/C shows 19.
View Article and Find Full Text PDFInjury pattern of feet and lower limbs in a feet-first fall from height.
Forensic Sci Med Pathol
January 2025
State Institute of Legal Medicine, Turmstrasse 21, Berlin, 10559, Germany.
In fatalities caused by falls from height, the analysis of the injury pattern, alongside with circumstantial data, is crucial for understanding the dynamics of the incident. In rare cases, even a differentiation between accidental and intentional events might be possible. The injury pattern of the lower limbs is particularly significant in this context.
View Article and Find Full Text PDFRapid and dual-mode nitrite detection with improved sensitivity by nanointerface-regulated ultrafast Griess assay.
Anal Chim Acta
January 2025
College of Chemistry, Beijing University of Chemical Technology, Beijing, 100029, China. Electronic address:
Background: The rapid and sensitive detection of nitrite is important to human health protection due to its carcinogenic and teratogenic risks with excessive intake. The Griess assay is widely applied for the design of nitrite detection system. However, its relatively slow reaction kinetics and sole colorimetry mode might limit it's the sensitivity and practical application.
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