Responsive fluorinated nanoemulsions for 19F magnetic resonance detection of cellular hypoxia. 2020

Rahul T Kadakia, and Da Xie, and Hongyu Guo, and Bailey Bouley, and Meng Yu, and Emily L Que
Department of Chemistry, The University of Texas at Austin, 105 E 24th St Stop A5300, Austin, TX 78712, USA. emilyque@cm.utexas.edu.

We report two highly fluorinated Cu-based imaging agents, CuL1 and CuL2, for detecting cellular hypoxia as nanoemulsion formulations. Both complexes retained their initial quenched 19F MR signals due to paramagnetic Cu2+; however, both complexes displayed a large signal increase when the complex was reduced. DLS studies showed that the CuL1 nanoemulsion (NECuL1) had a hydrodiameter of approximately 100 nm and that it was stable for four weeks post-preparation. Hypoxic cells incubated with NECuL1 showed that 40% of the Cu2+ taken up was reduced in low oxygen environments.

UI MeSH Term Description Entries
D002460 Cell Line Established cell cultures that have the potential to propagate indefinitely. Cell Lines,Line, Cell,Lines, Cell
D004655 Emulsions Colloids formed by the combination of two immiscible liquids such as oil and water. Lipid-in-water emulsions are usually liquid, like milk or lotion. Water-in-lipid emulsions tend to be creams. The formation of emulsions may be aided by amphiphatic molecules that surround one component of the system to form MICELLES. Emulsion
D015687 Cell Hypoxia A condition of decreased oxygen content at the cellular level. Anoxia, Cellular,Cell Anoxia,Hypoxia, Cellular,Anoxia, Cell,Anoxias, Cell,Anoxias, Cellular,Cell Anoxias,Cell Hypoxias,Cellular Anoxia,Cellular Anoxias,Cellular Hypoxia,Cellular Hypoxias,Hypoxia, Cell,Hypoxias, Cell,Hypoxias, Cellular
D049329 Nanostructures Materials which have structured components with at least one dimension in the range of 1 to 100 nanometers. These include NANOCOMPOSITES; NANOPARTICLES; NANOTUBES; and NANOWIRES. Nanomaterials,Nanostructured Materials,Material, Nanostructured,Materials, Nanostructured,Nanomaterial,Nanostructure,Nanostructured Material
D054879 Halogenation Covalent attachment of HALOGENS to other compounds. Bromination,Chlorination,Fluorination,Iodination,Iodation
D057054 Molecular Imaging The use of molecularly targeted imaging probes to localize and/or monitor biochemical and cellular processes via various imaging modalities that include RADIONUCLIDE IMAGING; ULTRASONOGRAPHY; MAGNETIC RESONANCE IMAGING; FLUORESCENCE IMAGING; and MICROSCOPY. Imaging, Molecular
D066235 Fluorine-19 Magnetic Resonance Imaging Magnetic resonance imaging diagnostic technique which uses fluorine-19 perfluorocarbon probes and contrast agents for high resolution image detection and quantitation. 19F MRI,Fluorine 19 Magnetic Resonance Imaging

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