Dual mode nanoparticles: CdS coated iron nanoparticles
- Citation data:
Journal of Applied Physics, ISSN: 0021-8979, Vol: 107, Issue: 9, Page: 7756-null
- Publication Year:
- Repository URL:
- https://scholarscompass.vcu.edu/chem_pubs/28; https://scholarscompass.vcu.edu/cgi/viewcontent.cgi?article=1056&context=chem_pubs
- Physics and Astronomy; CORE-SHELL NANOPARTICLES; QUANTUM DOTS; DNA-MOLECULES; XPS; PHOTOLUMINESCENCE; NANOCRYSTALS; CANCER; CELLS; FILMS; Chemistry
Reverse micelles can be used in a sequential fashion to make core-shell nanoparticles. Using this technique it is possible to make a magnetic quantum dot, by coating an iron core with a cadmium sulfide shell. Transmission electron microscopy indicated core-shell morphology and narrow size distribution of the obtained particles. Collectively, x-ray powder diffraction and x-ray photoelectron spectroscopy verified the presence of cadmium sulfide on the surface of the nanoparticles. Optical properties of the coated particles were demonstrated using fluorescence spectroscopy. A vibrating sample magnetometer was used to determine magnetic properties. Dual mode cadmium sulfide coated iron core-shell nanoparticles make unique candidates for the use in biomedical applications. © 2010, American Institute of Physics. All rights reserved.