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Methylammonium-free, high-efficiency, and stable all-perovskite tandem solar cells enabled by multifunctional rubidium acetate.
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All-perovskite tandem solar cells (APTSCs) offer the potential to surpass the Shockley-Queisser limit of single-junction solar cells at low cost. However, high-performance APTSCs contain unstable methylammonium (MA) cation in the tin-lead (Sn-Pb) narrow bandgap subcells. Currently, MA-free Sn-Pb perovskite solar cells (PSCs) show lower performance compared with their MA-containing counterparts.
View Article and Find Full Text PDFThe human () gene encodes a plasma membrane protein SLC39A8 (ZIP8) that mediates the specific uptake of the metals Cd, Mn, Zn, Fe, Co, and Se Pathogenic variants within are associated with congenital disorder of glycosylation type 2 (CDG type II) or Leigh-like syndrome. However, numerous mutations of uncertain significance are also linked to different conditions or benign traits. Our study characterized 21 variants and measured their impact on protein localization and intracellular levels of Cd, Zn, and Mn We identified four variants that disrupt protein expression, five variants with high retention in the endoplasmic reticulum, and 12 variants with localization to the plasma membrane.
View Article and Find Full Text PDFPyrolytic conversion of construction, renovation, and demolition (CRD) wood wastes in Québec to biochar: Production, characterization, and identifying relevant stability indices for carbon sequestration.
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Université du Québec à Trois-Rivières Trois-Rivieres, Quebec, Canada.
Management of heterogeneous construction, renovation, and demolition (CRD) wood residues in Québec brings into light, a widespread topic under discussion related to their current disposal methods in landfills, that may lead to environmental concerns. With rising forfeitures from a legal standpoint, alternative treatment methods for CRD wood wastes are being explored. Thermochemical biomass conversion techniques can be employed to depolymerize low-quality end-of-life CRD wood and valorize it to bio-based products.
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View Article and Find Full Text PDFLarge variability in the alkaloid content of dietary supplements.
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Department of Pharmacology and Vanderbilt Institute of Chemical Biology, Vanderbilt University School of Medicine, Nashville, TN, United States.
Introduction: Extracts from the rhizome of the traditional Chinese medicinal plant (CY) mediate a number of biologic effects that are associated with its content of isoquinoline alkaloids. CY alkaloids have shown analgesic, cardioprotective, and anti-addictive effects in animal models of disease. Since CY alkaloids are available to consumers as dietary supplements we analyzed the content of alkaloids in 14 products including open powders, capsules, and liquid formulations, capturing a majority of the products available online in the US.
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