Biodegradable magnetic nanoparticles were synthesized using Poly(L-Lactic Acid) and magnetite nanoparticles (∼14 nm) at different dosages, and then these nanaoparticles (nanocomposites) and pure magnetic particles were targeted in external magnetic fields by changing the test parameters. The magnetic field test results showed that magnetic saturation, fluid speed, magnetic field distance and particle size were extremely effective for a magnetic guidance system that is needed for an effective drug delivery approach. Thus, it is assumed that such nanoparticles can carry drugs (chemotherapy) to be able to cure cancer tumors as well as many other diseases.
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Asmatulu, R., Claus, R., Riffle, J.S. et al. Targeting Magnetic Nanoparticles in High Magnetic Fields for Drug Delivery Purposes. MRS Online Proceedings Library 820, 85–90 (2004). https://doi.org/10.1557/PROC-820-O3.8