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Fig. 12 | AAPS Open

Fig. 12

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. 12

Optical microscope images of Yomesan powder: (top) a sample of featureless particulate aggregates of the fresh powder, and (bottom) crushed Yomesan aged several weeks at room temperature in a closed but frequently opened vial. Initial images (left) show dry material and (right) three images of the Yomesan powders suspended in deionized water. Needle-shaped crystals are evident on the aged particulate aggregates. Corn starch particles are indicated by arrows in the far-right image. 40× objective. Scale bars are 10 μm, in bright field Kohler illumination optics (Nikon Diaphot)

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