Gd(III) doping effect on magnetization and water proton relaxivities in ultra small iron oxide nanoparticles
Source abstract
Abstract
Two samples of ultra small Gd(III) doped iron oxide nanoparticles were prepared to investigate Gd(III) doping effect on longitudinal (r1) and transverse (r2) water proton relaxivities. Gd(III) doping mole percents were 0.2 and 0.4 for samples 1 and 2, respectively. Average particle diameters were 2.5 to 2.1 nm for samples 1 and 2, respectively. Reduced r1 and r2 values were observed in both samples. We attributed this to reduced magnetizations arising from opposing effect of Gd(III) to net magnetizations of Fe(III)/Fe(II) in oxide nanoparticles.
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Research context
OpenAlex topics: Iron oxide chemistry and applications · Magnetic Properties and Synthesis of Ferrites · Characterization and Applications of Magnetic Nanoparticles
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Kyungpook National University 1 Department of Chemistry, College of Natural Sciences, , Taegu 702-701, South Korea
Kyungpook National University 2 Department of Nanoscience and Nanotechnology, , Taegu 702-701, South Korea
Kyungpook National University and Hospital 3 Department of Molecular Medicine and Medical & Biological Engineering, School of Medicine, , Taegu 702-701, South Korea
Kyungpook National University 4 Department of Applied Chemistry, College of Engineering, , Taegu 702-701, South Korea
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