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. Author manuscript; available in PMC: 2013 Nov 16.
Published in final edited form as: J Chromatogr A. 2012 Sep 26;1264:72–79. doi: 10.1016/j.chroma.2012.09.050

Figure 5.

Figure 5

Figure 5

(a) RR and (b) zeta-potential of the 85-nm carboxylate NPs and the 102-nm unfunctionalized NPs in CFs with increasing ionic strength obtained by adding NaCl to 10 mM HEPES (pH 7.3).