Change search
ReferencesLink to record
Permanent link

Direct link
Magnetic and Electron Spin Relaxation Properties of (GdxY1−x)2O3 (0 ≤ x ≤ 1) Nanoparticles Synthesized by the Combustion Method. Increased Electron Spin Relaxation Times with Increasing Yttrium Content
Show others and affiliations
2011 (English)In: The Journal of Physical Chemistry C, ISSN 1932-7447, E-ISSN 1932-7455, Vol. 115, no 13, 5469-5477 p.Article in journal (Refereed) Published
Abstract [en]

The performance of a magnetic resonance imaging contrast agent (CA) depends on several factors, including the relaxation times of the unpaired electrons in the CA. The electron spin relaxation time may be a key factor for the performance of new CAs, such as nanosized Gd2O3 particles. The aim of this work is, therefore, to study changes in the magnetic susceptibility and the electron spin relaxation time of paramagnetic Gd2O3 nanoparticles diluted with increasing amounts of diamagnetic Y2O3. Nanoparticles of (GdxY1−x)2O3 (0 ≤ x ≤ 1) were prepared by the combustion method and thoroughly characterized (by X-ray diffraction, transmission electron microscopy, thermogravimetry coupled with mass spectroscopy, photoelectron spectroscopy, Fourier transform infrared spectroscopy, and magnetic susceptibility measurements). Changes in the electron spin relaxation time were estimated by observations of the signal line width in electron paramagnetic resonance spectroscopy, and it was found that the line width was dependent on the concentration of yttrium, indicating that diamagnetic Y2O3 may increase the electron spin relaxation time of Gd2O3 nanoparticles.

Place, publisher, year, edition, pages
American Chemical Society (ACS), 2011. Vol. 115, no 13, 5469-5477 p.
National Category
Chemical Sciences
URN: urn:nbn:se:umu:diva-50769DOI: 10.1021/jp111368tOAI: diva2:468624
Available from: 2011-12-21 Created: 2011-12-21 Last updated: 2012-02-22Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full text

Search in DiVA

By author/editor
Westlund, Per-Olof
By organisation
Department of Chemistry
In the same journal
The Journal of Physical Chemistry C
Chemical Sciences

Search outside of DiVA

GoogleGoogle Scholar
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Altmetric score

Total: 126 hits
ReferencesLink to record
Permanent link

Direct link