학술논문
Effect of iron oxide nanoparticles functionalization by citrate analyzed using Mössbauer spectroscopy.
Document Type
Article
Author
Source
Subject
*MOSSBAUER spectroscopy
*IRON oxide nanoparticles
*IONS
*CITRATES
*IRON oxides
*SURFACE coatings
*ATOMIC interactions
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Language
ISSN
0304-3843
Abstract
Comparison of the Mössbauer spectra of the as-prepared native iron oxide nanoparticles (IONs) and the citrate-functionalized IONs demonstrates differences in the spectral shapes at room temperature and variations of the 57Fe hyperfine parameters at 80 K. The observed differences are claimed to result from capping the IONs with citrate, thus decreasing the particle-particle interaction while promoting interaction of the outer atomic layers of the IONs with the surface molecular coating. [ABSTRACT FROM AUTHOR]