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  • Two DO3A-based ligands appended with the propylphosphonate side arm and their Ln3+ complexes were investigated. Proton relaxometric in vitro studies at 20 MHz and 60 MHz and 37 degree of Celsius of the Gd3+ complex containing free acid exhibited relative changes of up to 56 % in r1 relaxivity when the pH of the medium was changed from 4 to 7. This change is explained by the decrease in the number of coordinated water molecules from two to one. Temperature-dependent relaxivity and NMRD profiles of Gd3+ complexes showed a fast water exchange and a slightly increased rotational correlation time, which is characteristic of phosphonate-containing compounds. Thermodynamic and kinetic studies of the Gd3+ and Eu3+ complexes were performed by means of potentiometry and luminescence spectroscopy. The results indicate that the thermodynamic stability and kinetic inertness of these complexes are sufficient for their in vivo application.
  • Two DO3A-based ligands appended with the propylphosphonate side arm and their Ln3+ complexes were investigated. Proton relaxometric in vitro studies at 20 MHz and 60 MHz and 37 degree of Celsius of the Gd3+ complex containing free acid exhibited relative changes of up to 56 % in r1 relaxivity when the pH of the medium was changed from 4 to 7. This change is explained by the decrease in the number of coordinated water molecules from two to one. Temperature-dependent relaxivity and NMRD profiles of Gd3+ complexes showed a fast water exchange and a slightly increased rotational correlation time, which is characteristic of phosphonate-containing compounds. Thermodynamic and kinetic studies of the Gd3+ and Eu3+ complexes were performed by means of potentiometry and luminescence spectroscopy. The results indicate that the thermodynamic stability and kinetic inertness of these complexes are sufficient for their in vivo application. (en)
Title
  • Relaxometric, Thermodynamic and Kinetic Studies of Lanthanide(III) Complexes of DO3A-Based Propylphosphonates
  • Relaxometric, Thermodynamic and Kinetic Studies of Lanthanide(III) Complexes of DO3A-Based Propylphosphonates (en)
skos:prefLabel
  • Relaxometric, Thermodynamic and Kinetic Studies of Lanthanide(III) Complexes of DO3A-Based Propylphosphonates
  • Relaxometric, Thermodynamic and Kinetic Studies of Lanthanide(III) Complexes of DO3A-Based Propylphosphonates (en)
skos:notation
  • RIV/00216224:14310/09:00037410!RIV10-MSM-14310___
http://linked.open...avai/riv/aktivita
http://linked.open...avai/riv/aktivity
  • P(OC 179), S
http://linked.open...iv/cisloPeriodika
  • 22
http://linked.open...vai/riv/dodaniDat
http://linked.open...aciTvurceVysledku
http://linked.open.../riv/druhVysledku
http://linked.open...iv/duvernostUdaju
http://linked.open...titaPredkladatele
http://linked.open...dnocenehoVysledku
  • 338829
http://linked.open...ai/riv/idVysledku
  • RIV/00216224:14310/09:00037410
http://linked.open...riv/jazykVysledku
http://linked.open.../riv/klicovaSlova
  • Lanthanides; phosphonates; kinetics; termodynamics; contrast agents (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...odStatuVydavatele
  • DE - Spolková republika Německo
http://linked.open...ontrolniKodProRIV
  • [FCDAF2F105F9]
http://linked.open...i/riv/nazevZdroje
  • Eur. J. Inorg. Chem.
http://linked.open...in/vavai/riv/obor
http://linked.open...ichTvurcuVysledku
http://linked.open...cetTvurcuVysledku
http://linked.open...vavai/riv/projekt
http://linked.open...UplatneniVysledku
http://linked.open...v/svazekPeriodika
  • 2009
http://linked.open...iv/tvurceVysledku
  • Lubal, Přemysl
  • Táborský, Petr
  • Angelovski, Goran
  • Mamedov, Ilgar
  • Laurent, Sophie
  • Logothetis, Nikos
  • Mayer, Hermann A.
  • Vander Elst, Luc
issn
  • 1434-1948
number of pages
http://localhost/t...ganizacniJednotka
  • 14310
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