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| http://dx.doi.org/10.1016/j.radcr.2018.06.009 | DOI Listing |
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Maximizing H Production from a Combination of Catalytic Partial Oxidation of CH and Water Gas Shift Reaction.
Molecules
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The Joint Graduate School of Energy and Environment, CHE Center for Energy Technology and Environment, King Mongkut's University of Technology Thonburi, 126 Pracha Uthit Rd., Bang Mod, Thung Khru, Bangkok 10140, Thailand.
A single-bed and dual-bed catalyst system was studied to maximize H production from the combination of partial oxidation of CH and water gas shift reaction. In addition, the different types of catalysts, including Ni, Cu, Ni-Re, and Cu-Re supported on gadolinium-doped ceria (GDC) were investigated under different operating conditions of temperature (400-650 °C). Over Ni-based catalysts, methane can easily dissociate on a Ni surface to give hydrogen and carbon species.
View Article and Find Full Text PDFCAR/CSACI Practice Guidance for Contrast Media Hypersensitivity.
Can Assoc Radiol J
January 2025
Department of Radiology, Dalhousie University, Halifax, NS, Canada.
Contrast media, including iodinated contrast media and gadolinium-based contrast agents, are commonly administered pharmaceuticals with excellent safety profiles. However, a minority of the population may experience a hypersensitivity reaction following intravenous administration. Hypersensitivity reactions can be immediate or delayed, and range from mild, such as urticaria, to severe, including anaphylaxis.
View Article and Find Full Text PDFLong-term effects of linear versus macrocyclic GBCAs on gene expression in the central nervous system of mice.
Eur Radiol Exp
January 2025
Laboratory of Molecular Imaging, Department of Radiology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China.
Background: We examined chronic gadolinium retention impact on gene expression in the mouse central nervous system (CNS) after injection of linear or macrocyclic gadolinium-based contrast agents (GBCAs).
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Successful use of gadolinium contrast medium for flow-diverter stent placement in a patient with hypersensitivity to iodinated contrast: A case report.
Neuroradiol J
January 2025
Department of Neurosurgery, Brain Research Institute, Niigata University, Niigata, Japan.
Gadolinium contrast medium can serve as an alternative to iodinated contrast medium when the latter is unsuitable. In this report, we describe a case of a carotid-ophthalmic aneurysm in which angiograms were obtained using gadolinium contrast medium for flow-diverter stent placement due to the patient's history of bronchial asthma and hypersensitivity reactions to iodinated contrast medium. To enhance the visibility of gadolinium contrast medium, which typically provides lower contrast compared to iodinated contrast medium, we employed a contrast-enhancing and noise-reducing protocol on our image-guided therapy system.
View Article and Find Full Text PDFBiomedical Application Prospects of Gadolinium Oxide Nanoparticles for Regenerative Medicine.
Pharmaceutics
December 2024
Department of Hospital Surgery, Department of Plastic and Reconstructive Surgery, Cosmetology and Cell Technology, Pirogov Russian National Research Medical University (RNRMU), 117997 Moscow, Russia.
Background/objectives: The aim was to study the possibilities of biomedical application of gadolinium oxide nanoparticles (GdO NPs) synthesized under industrial conditions, and evaluate their physicochemical properties, redox activity, biological activity, and safety using different human cell lines.
Methods: The powder of GdO NPs was obtained by a process of thermal decomposition of gadolinium carbonate precipitated from nitrate solution, and was studied using transmission electron microscopy (TEM), X-ray diffraction (XRD), Raman spectroscopy, mass spectrometry, and scanning electron microscopy (SEM) with energy dispersive X-ray analyzer (EDX). The redox activity of different concentrations of GdO NPs was studied by the optical spectroscopy (OS) method in the photochemical degradation process of methylene blue dye upon irradiation with an optical source.
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