Longitudinal water proton relaxivities of Gd(OH)3 nanorods, Gd(OH)3 nanoparticles, and Gd2O3 nanoparticles: Dependence on particle diameter, composition, and morphology

Ja Young Park, Krishna Kattel, Wenlong Xu, Han Gyeol Kim, Eun Jung Lee, Gang Ho Lee, Jae Jun Lee, Yongmin Chang, Tae Jeong Kim

Research output: Contribution to journalArticlepeer-review

12 Scopus citations

Abstract

Gd(OH)3 nanorods, Gd(OH)3 nanoparticles, and Gd2O3 nanoparticles were prepared, and their longitudinal water proton relaxivities (r1s) were investigated. They are important for application to highly sensitive T1 MRI contrast agents. The r1s did not much depend on either composition or morphology but on particle diameter such that an optimal particle diameter (~1.6 nm) exists for a maximal r1 (~12.4 s-1mM-1). This is interpreted such that surface Gd(III) ions mainly contribute to the r1.

Original languageEnglish
Pages (from-to)2376-2380
Number of pages5
JournalJournal of the Korean Physical Society
Volume59
Issue number3
DOIs
StatePublished - 15 Sep 2011

Keywords

  • Gd(OH)
  • GdO
  • Longitudinal water proton relaxivity
  • Nanoparticle
  • Nanorod

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