In recent years

magnetic microspheres have been widely used in cell separation

protein purification

immunoassays and as diagnastica and therapeutica．Further founcfionalized microsphere are attracting more attention．A slight blue magnetic polymer microsphere with photoconductivity was synthesized by dispersion copolymerization with styrene and reactive Fe-phthalocyanine in the presence of magnetic fluid．The microsphere has a core-shell structure

the core is Fe3O4 magnetic fluid

and the shell is a copolymer of styrene and reactive Fe-phthalocyanine．The content of magnetic fluid and Fe-phthalocyanine in the microsphere is 1.833％ and 1.43％ respectively．The average size of microsphere was 55.317 μm with multi-distribution range from 6～200 μm．The two important properties of the microsphere

magnetic responsiveness and photoconductivity

were investigated．It shows a good magnetic responsiveness in magnetic field and a good photoconductive property at 762.5 nm．