Eight-Coordinate, Stable Fe(II) Complex as a Dual (19)F and CEST Contrast Agent for Ratiometric pH Imaging(153 views visite) Srivastava K, Ferrauto G, Young Vg J, Aime S, Pierre VC
Keywords Parole chiave: Not available. Non disponibili.
Affiliations Affiliazioni: *** IBB - CNR ***
Department of Chemistry, University of Minnesota , Minneapolis, Minnesota 55455, United States., Molecular Imaging Center, Department of Molecular Biotechnologies & Health Sciences, University of Torino , 10126 Torino, Italy.,
References Riferimenti: Not available. Non disponibili.
Eight-Coordinate, Stable Fe(II) Complex as a Dual (19)F and CEST Contrast Agent for Ratiometric pH Imaging
Accurate mapping of small changes in pH is essential to the diagnosis of diseases such as cancer. The difficulty in mapping pH accurately in vivo resides in the need for the probe to have a ratiometric response so as to be able to independently determine the concentration of the probe in the body independently from its response to pH. The complex Fe(II)-DOTAm-F12 behaves as an MRI contrast agent with dual (19)F and CEST modality. The magnitude of its CEST response is dependent both on the concentration of the complex and on the pH, with a significant increase in saturation transfer between pH 6.9 and 7.4, a pH range that is relevant to cancer diagnosis. The signal-to-noise ratio of the (19)F signal of the probe, on the other hand, depends only on the concentration of the contrast agent and is independent of pH. As a result, the complex can ratiometrically map pH and accurately distinguish between pH 6.9 and 7.4. Moreover, the iron(II) complex is stable in air at room temperature and adopts a rare 8-coordinate geometry.
Eight-Coordinate, Stable Fe(II) Complex as a Dual (19)F and CEST Contrast Agent for Ratiometric pH Imaging
Schutz K, Alecsandru D, Grimbacher B, Haddock J, Bruining A, Driessen G, De Vries E, Van Hagen PM, Hartmann I, Fraioli F, Milito C, Mitrevski M, Quinti I, Serra G, Kelleher P, Loebinger M, Litzman J, Postranecka V, Thon V, Babar J, Condliffe AM, Exley A, Kumararatne D, Screaton N, Jones A, Bondioni MP, Lougaris V, Plebani A, Soresina A, Sirignano C, Spadaro G, Galal N, Gonzalez-granado LI, Dettmer S, Stirling R, Chapel H, Lucas M, Patel S, Farber CM, Meyts I, Banerjee AK, Hackett S, Hurst JR, Warnatz K, Gathmann B, Weidemann J, Berthold D, Baumann U * Correction to: Imaging of Bronchial Pathology in Antibody Deficiency: Data from the European Chest CT Group(104 visite) J Clin Immunol (ISSN: 0271-9142linking, 1573-2592), 2019 Feb; 39(2): 225-227. Impact Factor:2.654 DettagliEsporta in BibTeXEsporta in EndNote
Schutz K, Alecsandru D, Grimbacher B, Haddock J, Bruining A, Driessen G, De Vries E, Van Hagen PM, Hartmann I, Fraioli F, Milito C, Mitrevski M, Quinti I, Serra G, Kelleher P, Loebinger M, Litzman J, Postranecka V, Thon V, Babar J, Condliffe AM, Exley A, Kumararatne D, Screaton N, Jones A, Bondioni MP, Lougaris V, Plebani A, Soresina A, Sirignano C, Spadaro G, Galal N, Gonzalez-granado LI, Dettmer S, Stirling R, Chapel H, Lucas M, Patel S, Farber CM, Meyts I, Banerjee AK, Hackett S, Hurst JR, Warnatz K, Gathmann B, Weidemann J, Berthold D, Baumann U, Schutz K, Alecsandru D, Grimbacher B, Haddock J, Bruining A, Driessen G, De Vries E, Van Hagen PM, Hartmann I, Fraioli F, Milito C, Mitrevski M, Quinti I, Serra G, Kelleher P, Loebinger M, Litzman J, Postranecka V, Thon V, Babar J, Condliffe AM, Exley A, Kumararatne D, Screaton N, Jones A, Bondioni MP, Lougaris V, Plebani A, Soresina A, Sirignano C, Spadaro G, Galal N, Gonzalez-granado LI, Dettmer S, Stirling R, Chapel H, Lucas M, Patel S, Farber CM, Meyts I, B * Imaging of Bronchial Pathology in Antibody Deficiency: Data from the European Chest CT Group(117 visite) J Clin Immunol (ISSN: 0271-9142linking, 1573-2592), 2019 Jan; 3939(2): 45-54. Impact Factor:2.654 DettagliEsporta in BibTeXEsporta in EndNote
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