Nanoscale
Ji Hua Laboratory, Foshan, 528200, P. R. China.
Published: February 2024
Graphene, a typical representative of the family of two-dimensional (2D) materials, possesses a series of phenomenal physical properties. To date, numerous inspiring discoveries have been made on its structures, properties, characterization, synthesis, transfer and applications. The real practical applications of this magic material indeed require large-scale synthesis and precise control over its structures, such as size, crystallinity, layer number, stacking order, edge type and contamination levels. Nonetheless, studies on the precise synthesis of graphene are far from satisfactory currently. Our review aims to deal with the precise synthesis of four critical graphene structures, including single-crystal graphene (SCG), AB-stacked bilayer graphene (AB-BLG), etched graphene and clean graphene. Meanwhile, existing problems and future directions in the precise synthesis of graphene are also briefly discussed.
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http://dx.doi.org/10.1039/d3nr06041a | DOI Listing |
JAMA Netw Open
January 2025
Division of Endocrinology and Metabolism, Department of Medicine, University of Calgary, Calgary, Alberta, Canada.
Importance: Using albumin-adjusted calcium is commonly recommended for for measuring calcium, but with little empirical evidence to support the practice.
Objective: To assess the correlation between total calcium measurements (with or without adjustment) vs the ionized calcium level as a reference standard.
Design, Setting, And Participants: This was a population-based cross-sectional study in the province of Alberta, Canada, including adults tested for serum total calcium and ionized calcium simultaneously between January 1, 2013, and October 31, 2019.
J Clin Hypertens (Greenwich)
January 2025
SR Sanjeevani Hospital, Siraha, Kalyanpur, Nepal.
Sex hormone-binding globulin (SHBG) regulates sex hormone availability and is influenced by metabolic factors. Variations in SHBG levels during pregnancy may affect the development of hypertensive disorders such as gestational hypertension (GH) and preeclampsia (PE). This systematic review and meta-analysis explores the potential of SHBG as a biomarker for predicting GH and PE.
View Article and Find Full Text PDFNanoscale
January 2025
Univ Rennes, CNRS, ISCR-UMR 6226, F-35000 Rennes, France.
Following several reports on ligand-protected atom-precise nanoclusters which encapsulate hydrides as interstitial dopants within their icosahedral core, the stability, structure and bonding of MH@Ag and MH@Au (M = Mo-Ag; W-Au) 8-electron cores is investigated through DFT calculations. The encapsulation of up to = 3 hydrides appears to be possible but at the cost of substantial structural distortions. In most of the computed models, the hydrides are found nearly free to move inside their icosahedral cages.
View Article and Find Full Text PDFMol Carcinog
January 2025
Department of Gastrointestinal Oncology, Central Laboratory and Precision Medicine Center, Affiliated Jinhua Hospital, Zhejiang University School of Medicine, Jinhua, Zhejiang Province, China.
Gastric cancer is a common digestive system tumor with a high resistance rate that reduces the sensitivity to chemotherapy. Nutrition therapy is an important adjuvant approach to favor the prognosis of gastric cancer. Dietary amino acids contribute greatly to gastric cancer progression by mediating tumor gene expressions, epigenetics, signal transduction, and metabolic remodeling.
View Article and Find Full Text PDFCurr Med Chem
January 2025
Brazilian Nuclear Energy Commission, Nuclear Engineering Institute, Laboratory of Novel Radiopharmaceuticals and Nanoradiopharmacy, Rio de Janeiro, 21941906, Brazil.
This study discusses the chemical perspectives of the [18F]F-PSMA probe, a pivotal tool in prostate cancer imaging. [18F]Fluorine, a positron emitter with a half-life of 109.8 minutes, is produced in a cyclotron by bombarding [18O]-enriched targets with protons.
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