Journal ArticleDOI
Theory of nuclear spin relaxation in paramagnetic systems in solution
TLDR
Theory sur la relaxation de spin nucleaire suivie d'une discussion des modeles dynamiques; comparaison avec des donnees experimentales selectionnees as discussed by the authors.About:
This article is published in Progress in Nuclear Magnetic Resonance Spectroscopy.The article was published on 1985-01-01. It has received 191 citations till now.read more
Citations
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Journal ArticleDOI
Gadolinium(III) Chelates as MRI Contrast Agents: Structure, Dynamics, and Applications
TL;DR: A. Relaxivity 2331 E. Outerand Second-Sphere relaxivity 2334 F. Methods of Improving Relaxivity 2336 V. Macromolecular Conjugates 2336.
Journal ArticleDOI
Structural and Dynamic Parameters Obtained from 17O NMR, EPR, and NMRD Studies of Monomeric and Dimeric Gd3+ Complexes of Interest in Magnetic Resonance Imaging: An Integrated and Theoretically Self-Consistent Approach1
D. Hugh Powell,Orla M. Ni Dhubhghaill,Dirk Pubanz,Lothar Helm,Yakob S. Lebedev,Willi Schlaepfer,Andre E. Merbach +6 more
TL;DR: In this article, the results of new and previously published 17O NMR, EPR, and NMRD studies of aqueous solutions of the Gd3+ octaaqua ion and the commercial MRI contrast agents [Gd(DTPA)(H2O)] were presented.
Journal ArticleDOI
Macromolecules, Dendrimers, and Nanomaterials in Magnetic Resonance Imaging: The Interplay between Size, Function, and Pharmacokinetics
TL;DR: In this review, small molecule agents are introduced, but focus primarily on macromolecular MR contrast agents, particularly those containing gadolinium (Gd 3+ ) that are assembled or based in part on these same small molecules.
Book ChapterDOI
Field-Cycling NMR Relaxometry
Rainer Kimmich,Esteban Anoardo +1 more
TL;DR: The main objective of field-cycling experiments [231, 367] is to obtain information on the spectral density of the fluctuating spin interactions in a frequency range as wide as possible as mentioned in this paper.
References
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Journal ArticleDOI
NMR‐Relaxation Mechanisms of O17 in Aqueous Solutions of Paramagnetic Cations and the Lifetime of Water Molecules in the First Coordination Sphere
T. J. Swift,Robert E. Connick +1 more
TL;DR: In this paper, an investigation was made of the temperature and frequency dependence of T2 for O17 in aqueous solutions containing Mn2+, Fe2+, Co2+, Ni2+, and Cu2+.
Journal ArticleDOI
Proton Relaxation Times in Paramagnetic Solutions. Effects of Electron Spin Relaxation
N. Bloembergen,L. O. Morgan +1 more
TL;DR: In this article, it was shown that the distortion of the hydrated complex by collisions with other water molecules is responsible for the decrease in T2 in Mn++ (and other) solutions in very high magnetic fields.
Journal ArticleDOI
Proton Relaxation Times in Paramagnetic Solutions
TL;DR: In this paper, an exchange interaction between the electron spin and proton spin in adjacent water molecules in paramagnetic solutions was proposed, and an explanation was given why T1/T2 for protons is much larger than unity in solutions of these particular ions in high magnetic fields, whereas T1 is about equal to T2 in other solutions or in low fields.
Journal ArticleDOI
Nuclear Spin Relaxation in Ellipsoids Undergoing Rotational Brownian Motion
TL;DR: The nuclear spin relaxation times T1 and T2 have been calculated for two identical nuclei of spin I = ½ fixed in an ellipsoid undergoing rotational Brownian motion as discussed by the authors.
Journal ArticleDOI
Theory of ESR Linewidths of Free Radicals
TL;DR: A theory of ESR linewidths for substances in which the magnetic anisotropy is small and for which the orbital magnetism has been essentially quenched is developed in this paper.