Abstract
Multifunctional core-shell nanocomposites with a magnetic core and a silica shell doped with lanthanide chelate have been prepared by a simple method. First, citric acid-modified magnetite nanoparticles were synthesized by a chemical coprecipitation method. Then the magnetite nanoparticles were coated with silica shells doped with terbium (Tb3+) complex by a modified Stöber method based on hydrolyzing and condensation of tetraethyl orthosilicate (TEOS) and a silane precursor. These multifunctional nanocomposites are potentially useful in a variety of biological areas such as bio-imaging, bio-labeling and bioassays because they can be simultaneously manipulated with an external magnetic field and exhibit unique phosphorescence properties.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 1368-1371 |
| Number of pages | 4 |
| Journal | Journal of Magnetism and Magnetic Materials |
| Volume | 321 |
| Issue number | 10 |
| DOIs | |
| State | Published - May 2009 |
Keywords
- Core-shell structure
- Lanthanide chelate
- Magnetite nanoparticle
- Multifunctional nanocomposite
- Silica
ASJC Scopus subject areas
- Condensed Matter Physics
- Electronic, Optical and Magnetic Materials
Fingerprint Dive into the research topics of 'Synthesis and characterization of multifunctional silica core-shell nanocomposites with magnetic and fluorescent functionalities'. Together they form a unique fingerprint.
Cite this
Ma, Z., Dosev, D., Nichkova, M., Dumas, R. K., Gee, S. J., Hammock, B. D., Liu, K., & Kennedy, I. M. (2009). Synthesis and characterization of multifunctional silica core-shell nanocomposites with magnetic and fluorescent functionalities. Journal of Magnetism and Magnetic Materials, 321(10), 1368-1371. https://doi.org/10.1016/j.jmmm.2009.02.040