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Fig. 18 | AAPS Open

Fig. 18

From: Extraction of niclosamide from commercial approved tablets into aqueous buffered solution creates potentially approvable oral and nasal sprays against COVID-19 and other respiratory infections

Fig. 18

Optical microscope images of particles from the stirred sample undergoing dissolution and morphologic change at 25–30 min after addition in pH 9.33 TBSS. (Top) images with the 10× objective, scale bar is 50 µm; (bottom) images with the 40× objective, scale bar is 10 μm. In the first (top) image, the white dotted region-of-interest at 10× is shown magnified in the 40× (bottom) image. Bright field optics, Kohler illumination

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