Characterization of a magnetic carrier encapsulating europium and ferrite nanoparticles for biomolecular recognition and imaging

In this study, FG beads (ferrite nanoparticles in the core covered with poly-(styrene-co-glycidyl methacrylate)) were made into fluorescent magnetic carriers (FMCs) containing the fluorescent substance, europium ion (Eu3+) complex. The developed FMCs showed several notable features such as high fluorescence intensity and high dispersibility in water. More importantly, FMCs did not leak Eu3+ complex. It is expected that the FMCs will be a useful tool for biomolecular recognition and imaging and contribute to advancement of a wide range of research fields, including cell biology and molecular imaging.