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. Author manuscript; available in PMC: 2009 Sep 16.
Published in final edited form as: J Mater Chem. 2009 Jan 1;19(24):4231–4239. doi: 10.1039/b821917f

Fig. 5.

Fig. 5

(a) TEM image of NP2 functionalized with SSA for 150 min. The grey ring in the inset is the shell formed by attachment and condensation of SSA. (b) The same particles after two day storage in the purified THF solution (no free silane). The scale bar is 50 nm. Insets in (a) and (b) show higher magnification images of a single particle. (c), (d) Histograms of the TEM images of the samples presented in (a) and (b), respectively.