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Rare-earth doped BiFe0.95Mn0.05O3 nanoparticles for potential hyperthermia applications
Astita Dubey1, Soma Salamon2, Supun B Attanayake3
1Institute for Materials Science and Center for Nanointegration Duisburg-Essen (CENIDE), University of Duisburg-Essen, Essen, Germany.
Frontiers in Bioengineering and Biotechnology
|November 4, 2022
Summary
Rare-earth elements enhance bismuth ferrite nanoparticles for magnetic hyperthermia. Dysprosium-doped nanoparticles show the best temperature increase for potential biomedical applications.
Area of Science:
- Materials Science
- Nanotechnology
- Biomedical Engineering
Background:
- Bismuth ferrite nanoparticles (BFM) are explored for biomedical applications.
- Ionic engineering offers a route to tune nanoparticle properties.
Purpose of the Study:
- To investigate the effect of rare-earth (RE) element doping (Nd, Gd, Dy) on BiFe0.95Mn0.05O3 nanoparticles (BFM).
- To evaluate the magnetic hyperthermia potential of these RE-doped BFM nanoparticles.
Main Methods:
- Sol-gel synthesis of RE-doped BFM nanoparticles.
- Characterization of morphology, ferroelectric, and magnetic properties.
- Assessment of hyperthermia performance using AC magnetic fields.
Main Results:
- RE doping altered nanoparticle morphology from elliptical to rectangular (Nd) and hexagonal (Gd, Dy).
- Doping significantly increased magnetization, with Gd showing a 550% rise at 300 K.
- Dysprosium-doped BFM nanoparticles demonstrated superior hyperthermia results, raising temperature by ~4°C.
Conclusions:
- Rare-earth doped BFM nanoparticles exhibit promising ferroelectric and magnetic properties.
- Dy-doped BFM nanoparticles show significant potential for magnetic hyperthermia applications.
- These nanoparticles are candidates for advanced biomedical applications.
