GI-REACT! - Artigos: Envíos recentes

Mostrando ítems 106-110 de 111

    • Gd3+-based magnetic resonance imaging contrast agent responsive to Zn2+ 

      Regueiro-Figueroa, Martín; Gündüz, Serhat; Patinec, Véronique; Logothetis, Nikos K.; Esteban-Gómez, David; Tripier, Raphaël; Angelovski, Goran; Platas-Iglesias, Carlos (American Chemical Society, 2015-10-15)
      [Abstract] We report the heteroditopic ligand H5L, which contains a DO3A unit for Gd3+ complexation connected to an NO2A moiety through a N-propylacetamide linker. The synthesis of the ligand followed a convergent route ...

    • Magnetic anisotropies in rhombic lanthanide(III) complexes do not conform to Bleaney’s theory 

      Castro, Goretti; Regueiro-Figueroa, Martín; Esteban-Gómez, David; Pérez-Lourido, Paulo; Platas-Iglesias, Carlos; Valencia, Laura (American Chemical Society, 2016-04-04)
      [Abstract] We report a complete set of magnetic susceptibilities of lanthanide complexes with a macrocyclic ligand based on a 3,6,10,13-tetraaza-1,8(2,6)-dipyridinacyclotetradecaphane platform containing four hydroxyethyl ...

    • Unexpected Changes in the Population of Coordination Isomers for the Lanthanide Ion Complexes of DOTMA–Tetraglycinate 

      Kumas, Cemile; Fernando, W. Shirangi; Zhao, Piyu; Regueiro-Figueroa, Martín; Kiefer, Garry E.; Martins, André F.; Platas-Iglesias, Carlos; Sherry, A. Dean (American Chemical Society, 2016-09-19)
      [Abstract] Lanthanide complexes with DOTA–tetraglycinate (DOTA-(gly)4) heavily favor the square antiprismatic (SAP) coordination isomer in aqueous solution, a structural feature that has made them useful as water-based ...

    • Exceptionally inert lanthanide(III) PARACEST MRI contrast agents based on an 18-membered macrocyclic platform 

      Castro, Goretti; Regueiro-Figueroa, Martín; Esteban-Gómez, David; Bastida, Rufina; Macías, Alejandro; Pérez-Lourido, Paulo; Platas-Iglesias, Carlos; Valencia, Laura (Wiley, 2015-12-14)
      [Abstract] We report a macrocyclic ligand based on a 3,6,10,13-tetraaza-1,8(2,6)-dipyridinacyclotetradecaphane platform containing four hydroxyethyl pendant arms (L1) that forms extraordinary inert complexes with Ln3+ ions. ...

    • Transient versus static electron spin relaxation in Mn2+ complexes relevant as MRI contrast agents 

      Platas-Iglesias, Carlos; Esteban-Gómez, David; Helm, Lothar; Regueiro-Figueroa, Martín (American Chemical Society, 2016-08-18)
      [Abstract] The zero-field splitting (ZFS) parameters of the [Mn(EDTA)(H2O)]2–·2H2O and [Mn(MeNO2A)(H2O)]·2H2O systems were estimated by using DFT and ab initio CASSCF/NEVPT2 calculations (EDTA = 2,2′,2″,2‴-(ethane-1,2-di ...