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  1. Manu Prakash says:

    Dear @KKsaini,

    What a wonderful post. Fantastic.

    The air bubbles are probably outside – on the surface of the cells; and not inside. Having a air bubble inside a cell is tricky. In this case, it’s just small air trapped when you possibly made a slide.

    Although; your observation brings up an interesting question – can a cell hold an air bubble inside? The answer to that in fact is “YES” – which should come as a big surprise. But a few species of Cyanobacteria do contain gas vesicles inside.

    Here is the famous paper by Walsby: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC372955/pdf/microrev00020-0104.pdf

    Welcome to the foldscope community 🙂

    Cheers
    Manu

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