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. Author manuscript; available in PMC: 2014 Feb 4.
Published in final edited form as: Int J Pharm. 2010 Sep 29;402(0):64–71. doi: 10.1016/j.ijpharm.2010.09.020

Table 1.

ζ-potential of MPs with different surface functional groups (A-, C-, S-, PEG1- and PEG2-MPs) measured in deionized water (n = 2).

Formulation ζ-potential (mV) (mean ± S.D.)
A-MPs -44.0 ± 5.28
C-MPs -54.3 ± 4.63
S-MPs -49.6 ± 4.06
PEG1-MPs -18.3 ± 3.59
PEG2-MPs 11.5 ± 4.93