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A novel mixed hemimicelle-based solid-phase extraction method using cetyltrimethylammonium bromide (CTAB) adsorbed onto the surface of magnetic Fe3O4 nanoparticles was developed for extraction/preconcentration of ultra-trace amounts of indomethacin from biological fluids. Magnetic nanoparticles were synthesised via a simple chemical co-precipitation method and characterised by a transmission electron...
Hollow mesoporous silica nanospheres with large pores have been synthesized by a newly developed green approach, and the highly dispersed hydrophobic magnetite nanoparticles were then loaded into hollow nanospheres through the large pores with a vacuum impregnation technique. The obtained Fe3O4-hollow mesoporous silica composites exhibit superparamagnetic property and ultra-fast immobilization speed...
Conjugated polymers such as polyaniline (PANI) and poly(3,4-ethylenedioxythiophene) (PEDOT) were coated on Fe3O4 magnetic nanoparticles via two different methods. Core-shell Fe3O4-PANI nanocomposite was synthesized through graft polymerization, whereas Fe3O4-PEDOT nanocomposites were synthesized by insitu chemical oxidative polymerization. Resulted nanocomposites were characterized for structural,...
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