Publications related to EPR Spectroscopy of MRI-Related Gd(III) Complexes: Simultaneous Analysis of Multiple Frequency and Temperature Spectra, Including Static and Transient Crystal Field Effects

Synthesis, complexation and NMR relaxation properties of Gd3+ complexes of Mes(DO3A)3

Lothar Helm, Pascal Miéville, Hugues Jaccard

Medium sized molecules endowed with multiple Gd3+ complexes are efficient high magnetic field MRI contrast agents. The novel ligand Mes(DO3A)3, presenting three DO3A (1,4,7,10-tetraazacyclododecane-N,N′,N′′-triacetatic acid) units grafted on the methyl pos ...

Royal Society of Chemistry2011

Double-resonant x-ray and microwave absorption: Atomic spectroscopy of precessional orbital and spin dynamics

Giovanni Boero, Stefano Rusponi, Pietro Gambardella

We show that double-resonance spectra recorded during the simultaneous absorption of x-ray and microwave (MW) photons are a fingerprint of the perturbed electronic configuration of atomic species driven to ferromagnetic resonance. X-ray absorption measurem ...

2009

LABORATORY DETECTION OF HOCN AND TENTATIVE IDENTIFICATION IN Sgr B2

Sandra Bruenken

The rotational spectrum of cyanic acid, HOCN, has been detected in the centimeter-wave band in a molecular beam by Fourier transform microwave spectroscopy and in the millimeter-wave band by conventional spectroscopy in a low-pressure laboratory discharge. ...

2009

Physicochemical Properties of the High-Field MRI-Relevant [Gd(DTTA-Me)(H2O)2]− Complex

Lothar Helm, Loïck Moriggi, Cora Prestinari

To study the physicochemical properties of the DTTA chelating moiety (H4DTTA = diethylenetriaminetetraacetic acid = N,N′-[iminobis(ethane-2,1-diyl)]bis[N-(carboxymethyl)glycine]), used in several compounds proposed as magnetic resonance imaging (MRI) contr ...

2008

Highly efficient MRI contrast agents

Loïck Moriggi

Since contrasts agents are used in magnetic resonance imaging (MRI), numerous efforts have been done to increase their relaxivity (parameter allowing to quantify contrast agent efficiency). Few years ago, the Merbach group developed the chelating agent DTT ...

EPFL2008

Theoretical investigations of magnetic properties of MRI contrast agents and carbon nanostructures

Oleg Yazyev

The phenomenon of magnetism is one of the key components of today's technological progress. Magnetic interactions and magnetic materials are essential for the scientific disciplines of physics, chemistry and biology, making this subject truly multidiscipli ...

EPFL2007

Gadolinium(III) ion in liquid water: structure, dynamics and magnetic interactions from first principles

Lothar Helm, Oleg Yazyev

We applied first principles molecular dynamics (MD) technique to study structure, dynamics, and magnetic interactions of the

Gd^{3+}

aqua ion dissolved in liquid water, a prototypical system for Gd-based complexes used as contrast agents for magnetic res ...

2007

Multifrequency EPR studies of zero field splitting of Gd(III) based MRI contrast agents in solids and liquids

Magnetic Resonance Imaging (MRI) offers an amazing number of ways to probe the human body. It is a wonderful symbiosis of engineering, science and medicine. The power of MRI is its ability to probe a variety of physical mechanisms that can then not only re ...

EPFL2006

Dinuclear gadolinium (III) chelates

Jéröme Costa

In 2003, the Nobel Assembly at the Karolinska Institute has awarded the Nobel Prize in Medicine or Physiology to Paul Lauterbur and Peter Mansfield for their seminal discoveries concerning the development of Magnetic Resonance Imaging (MRI), a non-invasive ...

EPFL2005

X-ray ferromagnetic resonance spectroscopy

Harald Brune, Giovanni Boero, Radivoje Popovic, Stefano Rusponi, Pietro Gambardella

We present a method to measure continuous-wave ferromagnetic resonance (FMR) spectra based on the core-level absorption of circularly polarized x rays. The technique is demonstrated by using a monochromatic x-ray beam incident on an yttrium-iron-garnet sam ...

2005

EPR Spectroscopy of MRI-Related Gd(III) Complexes: Simultaneous Analysis of Multiple Frequency and Temperature Spectra, Including Static and Transient Crystal Field Effects

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Synthesis, complexation and NMR relaxation properties of Gd3+ complexes of Mes(DO3A)3

Double-resonant x-ray and microwave absorption: Atomic spectroscopy of precessional orbital and spin dynamics

LABORATORY DETECTION OF HOCN AND TENTATIVE IDENTIFICATION IN Sgr B2

Physicochemical Properties of the High-Field MRI-Relevant [Gd(DTTA-Me)(H2O)2]− Complex

Highly efficient MRI contrast agents

Theoretical investigations of magnetic properties of MRI contrast agents and carbon nanostructures

Gadolinium(III) ion in liquid water: structure, dynamics and magnetic interactions from first principles

Multifrequency EPR studies of zero field splitting of Gd(III) based MRI contrast agents in solids and liquids

Dinuclear gadolinium (III) chelates

X-ray ferromagnetic resonance spectroscopy

Highly efficient MRI contrast agents

Theoretical investigations of magnetic properties of MRI contrast agents and carbon nanostructures

Synthesis, complexation and NMR relaxation properties of Gd3+ complexes of Mes(DO3A)3

Dinuclear gadolinium (III) chelates

LABORATORY DETECTION OF HOCN AND TENTATIVE IDENTIFICATION IN Sgr B2

Double-resonant x-ray and microwave absorption: Atomic spectroscopy of precessional orbital and spin dynamics

Gadolinium(III) ion in liquid water: structure, dynamics and magnetic interactions from first principles

X-ray ferromagnetic resonance spectroscopy

Physicochemical Properties of the High-Field MRI-Relevant [Gd(DTTA-Me)(H2O)2]− Complex

Multifrequency EPR studies of zero field splitting of Gd(III) based MRI contrast agents in solids and liquids