The purpose of this study was to prepare human serum albumin (HSA) microspheres with Fe(3)O(4) magnetic nanoparticles for tumor target therapy. Fe(3)O(4) was obtained by liquid-phase coprecipitation; HSA-coated magnetic particles were attained by solidification at high temperature. The result was that nanosized Fe(3)O(4) is a cubic crystal by XRD and the average size is 18.7 nm; the average size of HSA-coated magnetic particles is 341 nm. Fe(3)O(4) magnetic nanoparticles coated with HSA can be used for targeted-drug carriers with target-orientation and sustained-release properties.
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