Abstract
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 Fe 3 O 4 -hollow mesoporous silica composites exhibit superparamagnetic property and ultra-fast immobilization speed of hemoglobin, which were characterized by XRD, FTIR, TEM, HRTEM, SAED, SEM, UV-vis and VSM.
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