Abstract
Water‐soluble magnetite Fe3O4 nanoparticles were synthesized by coprecipitation that exhibit spherical morphology and superparamagnetic behavior with a saturation magnetization of 46 emu/g. These nanoparticles were coated with amino methacrylate copolymer (Eudragit E100) along with encapsulation of Doxorubicin drug under the action of sonication via a double emulsion solvent evaporation method. The prepared magnetic colloids were evaluated for particle size, surface morphology, surface charge, drug loading capacity, and entrapment efficiency. The drug release studies indicated the sustained release of drug of 92% in 24 hours at physiological pH of 7.4 and drug release kinetics followed first order. The prepared nanoparticles and their colloids were also investigated for magnetic hyperthermia and specific absorption rate values were found to be 2.41, 2.71, and 4.28 W/g at 259, 327, and 518 kHz, respectively. The developed magnetic colloids have the potential to perform controlled hyperthermia and drug release to the target sites.
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