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Photochromic Color Tuning of Copper-doped Zinc Sulfide Nanocrystals by Control of Local Dopant Environments.
Angew Chem Int Ed Engl
January 2025
Ritsumeikan University: Ritsumeikan Daigaku, Applied Chemistry, B805 Biolink, 1-1-1 Nojihigashi, 525-8577, Kusatsu, JAPAN.
Inorganic photochromic materials offer several advantages over organic compounds, including relatively inexpensive and higher thermal stability. However, tuning their color with the same component has remained a significant challenge. In this study, we demonstrate that the photochromic color of Cu-doped ZnS nanocrystals (NCs), which is initially pale yellow before light irradiation, can be tuned from gray to brown by adjusting the surface stoichiometry of Zn and S, which is controlled through the use of thiol and non-thiol ligands.
View Article and Find Full Text PDFSequential Epidemiological Analyses of Real-World Data: A Tool for Prospective Drug Safety Surveillance from the Rofecoxib Example.
Drug Saf
January 2025
Clinical Pharmacology, Pharmacy and Environmental Medicine, Department of Public Health, University of Southern Denmark, 5000, Odense C, Denmark.
Introduction: Large administrative healthcare databases can be used for near real-time sequential safety surveillance of drugs as an alternative approach to traditional reporting-based pharmacovigilance. The study aims to build and empirically test a prospective drug safety monitoring setup and perform a sequential safety monitoring of rofecoxib use and risk of cardiovascular outcomes.
Methods: We used Danish population-based health registers and performed sequential analysis of rofecoxib use and cardiovascular outcomes using case-time-control and cohort study designs from January 2000 to September 2004.
Mineral, Vitamin and Phytonutrients Content in Different Andean Potato Varieties Reintroduced in the North West Region, Argentina (NOA).
Plant Foods Hum Nutr
January 2025
Centro Interdisciplinario de Investigaciones en Tecnologías y Desarrollo Social para el NOA (CIITED), Facultad de Ingeniería, Universidad Nacional de Jujuy and Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Jujuy, Argentina.
The mineral content, vitamin C, and chlorogenic acid were determined in 44 genotypes of Andean potatoes reintroduced in the Quebrada de Humahuaca, Jujuy, Argentina. This initiative aims to promote biodiversity and support local producers by determining the nutritional and functional properties of these genotypes. The genotypes from a collection in the Germplasm Bank of INTA Balcarce, were planted in sandy clay loam soils and harvested manually.
View Article and Find Full Text PDFComputational Modeling of Electrocatalysts for CO Reduction: Probing the Role of Primary, Secondary, and Outer Coordination Spheres.
Acc Chem Res
January 2025
The Department of Chemistry, State University of New York at Binghamton, Binghamton, New York 13902, United States.
ConspectusIn the search for efficient and selective electrocatalysts capable of converting greenhouse gases to value-added products, enzymes found in naturally existing bacteria provide the basis for most approaches toward electrocatalyst design. Ni,Fe-carbon monoxide dehydrogenase (Ni,Fe-CODH) is one such enzyme, with a nickel-iron-sulfur cluster named the C-cluster, where CO binds and is converted to CO at high rates near the thermodynamic potential. In this Account, we divide the enzyme's catalytic contributions into three categories based on location and function.
View Article and Find Full Text PDFModeling the effects of thin filament near-neighbor cooperative interactions in mammalian myocardium.
J Gen Physiol
March 2025
Department of Animal, Veterinary, and Food Sciences, College of Agricultural and Life Sciences, University of Idaho, Moscow, ID, USA.
The mechanisms underlying cooperative activation and inactivation of myocardial force extend from local, near-neighbor interactions involving troponin-tropomyosin regulatory units (RU) and crossbridges (XB) to more global interactions across the sarcomere. To better understand these mechanisms in the hearts of small and large mammals, we undertook a simplified mathematical approach to assess the contribution of three types of near-neighbor cooperative interactions, i.e.
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