Figure 2.

TEM images. (A) Silica nanoparticles, (B) silica nanoparticles treated with APTES, (C) azide-functionalized silica nanoparticles, and (D) silica nanoparticles modified via click chemistry and ATRP simultaneously.

Li et al. Nanoscale Research Letters 2012 7:485   doi:10.1186/1556-276X-7-485
Download authors' original image