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In vitro mucoadhesion of microparticles. The percentage of microparticles remaining on a model mucous membrane was measured after applying a shear stress similar to that of a human blink (140 – 160 dyne/cm2) for 60 s. *PLG/PEG MD were significantly different from the other types of microparticles (p < 0.05). The data points represent the average of n = 3 measurements ± standard deviation.
