New two in one magnetic fluorescent nanocomposites

Serena A. Corr; Yurii K. Gun'ko; Stephen J. Byrne; Alexios P. Douvalis; Munuswamy Venkatesan; Robert D. Gunning

doi:10.1117/12.604833

2 June 2005 New two in one magnetic fluorescent nanocomposites

Serena A. Corr, Yurii K. Gun'ko, Stephen J. Byrne, Alexios P. Douvalis, Munuswamy Venkatesan, Robert D. Gunning

Proceedings Volume 5824, Opto-Ireland 2005: Nanotechnology and Nanophotonics; (2005) https://doi.org/10.1117/12.604833
Event: OPTO-Ireland, 2005, Dublin, Ireland

Abstract

Magnetite nanoparticles have been coated by a porphyrin derivative to produce new magnetic materials with fluorescent properties. The magnetic nanoparticles were prepared using two different methods, one based on sol-gel techniques and ultrasonic processing, and the other via a controlled chemical co-precipitation. Different types of porphyrin functionalised magnetic nanoparticles have been prepared and have been characterised by electron microscopy (TEM and SEM), XRD, FTIR, Raman, UV-vis, and fluorescence spectroscopy. Microscopy results showed the formation of core-shell nanostructures, with IR and photoluminescence spectroscopy results confirming the presence of porphyrin in the shell.

Citation Download Citation

Serena A. Corr, Yurii K. Gun'ko, Stephen J. Byrne, Alexios P. Douvalis, Munuswamy Venkatesan, and Robert D. Gunning "New two in one magnetic fluorescent nanocomposites", Proc. SPIE 5824, Opto-Ireland 2005: Nanotechnology and Nanophotonics, (2 June 2005); https://doi.org/10.1117/12.604833

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