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. 2014 Feb 10;9(2):e87190. doi: 10.1371/journal.pone.0087190

Figure 3. Mean zeta potential (Zp) (A) and zeta potential distribution (B) of PNIPA/AA nanohydrogels.

Figure 3

Nanohydrogels with 3% (○) and 5% (•) of the cross-linking (CL) degree were previously swelled and measured in distilled water (pH 5.5) at 25°C.