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Macroscopic Gold Cluster Helical Tendrils.
J Am Chem Soc
January 2025
Henan Key Laboratory of Crystalline Molecular Functional Materials, College of Chemistry, Zhengzhou University, Zhengzhou 450001, P. R. China.
Handedness-controllable macroscopic helices are needed for understanding the chirality transfer through scales and design of high-performance devices. Bottom-up self-assembly rarely affords macroscopic helical superstructures because of accumulating disorder that is difficult to avoid during hierarchical self-assembly. Here, we demonstrate that tetragold clusters can assemble into macroscopic helices at the centimeter scale.
View Article and Find Full Text PDFUltra-precise ruler for ammonia nitrogen quantification in electrochemical synthesis experiments.
Anal Methods
January 2025
Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi, Jiangsu 214122, P. R. China.
The field of electrochemical ammonia synthesis has made rapid advancements, attracting a large number of scientists to contribute to this area of research. Accurate detection of ammonia is crucial in this process for evaluating the efficiency and selectivity of electrocatalysts. In this study, we systematically investigate the indophenol blue method for ammonia detection, examining the effects of key factors such as solution pH, nitrate concentration, and metal ion concentration on measurement accuracy.
View Article and Find Full Text PDFInsight into the Role and Evidence of Oxygen Vacancies in Porous Single-Crystalline Oxide to Enhance Catalytic Activity and Durability.
Research (Wash D C)
September 2023
Key Laboratory of Optoelectronic Materials Chemistry and Physics, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China.
Introducing and stabilizing oxygen vacancies in oxide catalysts is considered to be a promising strategy for improving catalytic activity and durability. Herein, we quantitatively create oxygen vacancies in the lattice of porous single-crystalline β-GaO monoliths by reduction treatments and stabilize them through the long-range ordering of crystal lattice to enhance catalytic activity and durability. The combination analysis of time-of-flight neutron powder diffraction and extended x-ray absorption fine structure discloses that the preferential generation of oxygen vacancy tends to occur at the site of tetrahedral coordination oxygen ions (O sites), which contributes to the formation of unsaturated Ga-O coordination in the monoclinic phase.
View Article and Find Full Text PDFChallenges and complications in arthroscopic ankle ligament repair: Current concepts.
J Clin Orthop Trauma
March 2025
Hospital Britanico de Buenos Aires, Perdriel 74, C1280AEB, Argentina.
Arthroscopic ligament repair has gained popularity as a minimally invasive alternative for addressing ankle instability, due to its minimally invasive nature, which offers significant advantages over traditional open procedures. These benefits include smaller incisions, reduced soft tissue dissection, and the ability to concurrently manage intra-articular pathology, contributing to its popularity among surgeons and patients alike. Despite these advantages, the procedure presents a range of technical challenges and potential complications that can impact patient outcomes.
View Article and Find Full Text PDFLitter quality modulates changes in bacterial and fungal communities during the gut transit of earthworm species of different ecological groups.
ISME Commun
January 2025
J.F. Blumenbach Institute of Zoology and Anthropology, University of Göttingen, Untere Karspüle 2, 37073 Göttingen, Germany.
Earthworms are keystone animals stimulating litter decomposition and nutrient cycling. However, earthworms comprise diverse species which live in different soil layers and consume different types of food. Microorganisms in the gut of earthworms are likely to contribute significantly to their ability to digest organic matter, but this may vary among earthworm species.
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