Hyaluronic Acid dried on slide

Applause IconMay 12, 2018 • 5:34 AM UTC
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I put a drop of a Hyaluronic acid solution on the slide. I didn’t see anything with brightfield/polarizing microscopy. I looked at it again 2 days after it had dried, with one polarizing filter, then both and finally with polarizing filters and a “frugal” compensator (the coverslide in our Foldscope kits).

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