Confinement of a tris-aqua Gd(iii) complex in silica nanoparticles leads to high stability and high relaxivity and supresses anion binding

The water soluble tris-aqua complex [Gd(dhqN-SO3)(H2O)3](3-) based on a hexadentate hydroxyquinoline ligand shows high thermodynamic stability and high relaxivity (12.54 mM(-1) s(-1) at 1.2 T). Its non-covalent confinement in 25 nm silica nanoparticles prevents transmetallation and endogenous anion...

Full description

Saved in:
Bibliographic Details
Published in:Chemical communications (Cambridge, England) England), 2015-04, Vol.51 (31), p.6836-6838
Main Authors: Moula Karimdjy, Maria, Tallec, Gaylord, Fries, Pascal H, Imbert, Daniel, Mazzanti, Marinella
Format: Article
Language:English
Subjects:
Anions
Binding
Confinement
Hydroxyquinoline
Magnetic fields
Nanoparticles
Physics
Silicon dioxide
Stability
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The water soluble tris-aqua complex [Gd(dhqN-SO3)(H2O)3](3-) based on a hexadentate hydroxyquinoline ligand shows high thermodynamic stability and high relaxivity (12.54 mM(-1) s(-1) at 1.2 T). Its non-covalent confinement in 25 nm silica nanoparticles prevents transmetallation and endogenous anion binding and leads to higher relaxivity over a wide range of magnetic fields.
ISSN:1359-7345
1364-548X
DOI:10.1039/c5cc01352f