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Pearson’s correlation coefficient between particle size of chitosan nanoparticles and deacetylation degree (%DD) of chitosan (r = 0.770, p < 0.01) (a), PDI of chitosan nanoparticles and molecular weight (MW) of chitosan (r = 0.766, p < 0.01) (b), PDI and %DD (r = −0.602, p < 0.01) (c), PDI and particle size (r = −0.469, p < 0.05) (d), zeta potential of chitosan nanoparticles and %DD (r = 0.686, p < 0.01) (e), zeta potential and MW (r = −0.662, p < 0.01) (f).
