New two in one magnetic fluorescent nanocomposites
Metadata:Show full item record
Citation:Corr, S.A., Gun'ko, Y.K., Byrne, S.J., Douvalis, A.P., Venkatesan, M., Gunning, R.D., New two in one magnetic fluorescent nanocomposites , Proceedings of SPIE - The International Society for Optical Engineering, Opto-Ireland 2005: Nanotechnology and Nanophotonics, 2005, 5824, 71, 2005, 71-78
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.