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. Author manuscript; available in PMC: 2017 Apr 1.
Published in final edited form as: J Phys Chem C Nanomater Interfaces. 2015 Jul 28;119(35):20632–20641. doi: 10.1021/acs.jpcc.5b03634

Figure 6.

Figure 6

ZP of capped AgNP in acidic, neutral, and salt solutions and bare19 AgNP in acidic and neutral solutions to determine their isoelectric pH (ZP = 0). Theoretical ZP measurements for PVP 20 and PVP 110 nm particles in SGF (particle + HCl + NaCl) were calculated to provide isoelectric pHs of PVP 20 and PVP 110 in SGF (solid marks at zero line). Solid lines and markers are experimental data, while dashed lines are theoretical.