Synthesis and Characterization of Magnetic Drug Carriers Modified with Tb3+ Ions

The study aimed to synthesize and characterize the magnetic drug carrier modified with terbium (III) ions. The addition of terbium extends the possibilities of their applications for targeted anticancer radiotherapy as well as for imaging techniques using radioisotopes emitting beta(+), beta(-), alpha, and gamma radiation. The synthesis of iron oxide nanoparticles stabilized with citrates using the co-precipitation method (IONP @ CA) was carried out during the experimental work. The obtained nanoparticles were used to synthesize a conjugate containing terbium ions and guanosine-5 '-monophosphate as an analog of drugs from the thiopurine group. Conjugates and their components were characterized using Transmission Electron Microscopy, infrared spectroscopy, X-ray microanalysis, spectrofluorimetry, and thermogravimetric analysis. The hybrid was also investigated with Langmuir layers to check the interaction with analogs of biological membranes.

Automated summary

This study aimed to synthesize and characterize a magnetic drug carrier modified with terbium (III) ions. The addition of terbium extends its applications for targeted anticancer radiotherapy and imaging techniques using different radiation types. Iron oxide nanoparticles stabilized with citrates were synthesized and used to create a conjugate containing terbium ions and guanosine-5 '-monophosphate analog. The conjugates and their components were characterized using various analysis methods.