Production of (38)Cl and (34m)Cl via the (d, α) reaction on natural argon and (36)Ar reveal medical cyclotrons' ability to supply these isotopes in small quantities. (38)Cl provides an inexpensive developmental tool, while (34m)Cl is a positron emitter of interest in PET imaging. Production yields, cyclotron target development, cryo-recovery of enriched gases, and nucleophilic chemistry of a model compound are described.
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http://dx.doi.org/10.1016/j.apradiso.2010.09.009 | DOI Listing |
Mar Environ Res
November 2024
State Key Laboratory of Marine Geology, Tongji University, Shanghai, 200092, China.
Coastal hypoxia, exacerbated by the combined influence of eutrophication and global warming, presents a significant environmental challenge. However, the lag correlation between organic matter (OM) export from the upper layers and bottom dissolved oxygen (DO) reduction still lack clear elucidation. This study investigated the coupling between net ecosystem production (NEP, representing the maximum OM export) and DO in the Changjiang River plume (CRP), using a wave-driven profiler system.
View Article and Find Full Text PDFMaterials (Basel)
September 2024
Department of Chemistry, The University of Jordan, Amman 11942, Jordan.
In this work, a meso-macroporous analcime/sodalite zeolite composite was produced by a hybrid synthesis process between a complex template method and hydrothermal treatment at 220 °C of naturally abundant kaolinitic-rich clay, using dodecyltrimethylammonium bromide as an organic soft template to enhance the mesoporous structure. The chemical and morphological properties of the developed zeolites composite were characterized using powder X-ray diffraction (PXRD), attenuated total Reflectance-Fourier transform infrared spectroscopy (ATR-FTIR), thermogravimetric analysis (TGA), N adsorption/desorption; and scanning electron microscopy with energy dispersive spectroscopy (SEM-EDS) methods were used to study the morphology, chemical composition and structure of the product. Two types of zeolite particles were obtained:(1) hollow microsphere with an attached analcime icositetrahedron of 30-40 µm in size and (2) sodalite microsphere with a ball-like morphology of 3-4 µm in size.
View Article and Find Full Text PDFArch Pharm (Weinheim)
November 2024
Instituto de Química Rosario (IQUIR-CONICET), Rosario, Argentina.
In previous studies, we demonstrated the potent activity of a library of 25 N,N'-disubstituted diamines (NNDDA) toward Trypanosomatid and Apicomplexa parasites. Considering the structure similarity between this collection and SQ109, an antituberculosis compound, and its compelling antiparasitic properties, we aimed to repurpose this library for tuberculosis treatment. We assayed this collection against Mycobacterium tuberculosis H37Rv and M.
View Article and Find Full Text PDFSci Rep
September 2024
Department of Remote Sensing and Photogrammetry, Finnish Geospatial Research Institute, 02150, Espoo, Finland.
Real-time location tracking is essential for personal security in industrial scenes, e.g. monitoring worker safety in power substations.
View Article and Find Full Text PDFNanophotonics
August 2024
CREOL, The College of Optics and Photonics, University of Central Florida, Orlando, FL, USA.
Volumetric subcellular imaging has long been essential for studying structures and dynamics in cells and tissues. However, due to limited imaging speed and depth of field, it has been challenging to perform live-cell imaging and single-particle tracking. Here we report a 2.
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