Facile Method for Preparation of Silica Coated Monodisperse Superparamagnetic Microspheres

Figure 3

Characteristics of magnetized sulfonated microbeads. SEM images of sulfonated PS-DVB microbeads (a) before and (b) after magnetization. (c) Representative EDS analysis result of magnetized microbeads. (d) Hysteresis loops of magnetic beads. Inset: the beads were attracted to one side of the tube using a magnet.

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