Figure 6.

Zeta potential curve of chitosan solutions at different pH. Calculated values of the 'extent of protonation’ with the respective schematic representation of chitosan polymer conformation/charges (range from 3.5 to 6.0).

Ramanery et al. Nanoscale Research Letters 2013 8:512   doi:10.1186/1556-276X-8-512
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