Figure 3 .

Electron microscopy images of the produced mesoporous silica particles. (a) TEM image of sample S-MSP1 illustrating the porous structure, (b) SEM image of samples S-MSP1, (c) S-MSP2 and (d) NR-MSP.

Karaman et al. Nanoscale Research Letters 2012 7:358   doi:10.1186/1556-276X-7-358
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