VZJ -- Crist et al. 3 (2): 444 Figure IG6

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Fig. 6. (a) Blue banding patterns of 0.8-µm hydrophilic colloids ( ${approx}$ 3 x 10⁷ particles mL^–1) after application of the colloidal suspension; (b) 1 h later. With time and continued drainage, the banding patterns widened and darkened to a deeper blue hue.