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Fidget Spinner >> Centrifuge

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Michael Gilligan26/05/2020 10:27:19
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I just spotted this piece, on Ars Technica : **LINK**

https://arstechnica.com/science/2020/05/a-fidget-spinner-to-detect-urinary-tract-infections/


The underlying concept of this cheap mini-centrifuge makes it too interesting to miss.

The original paper is a free PDF download


MichaelG.

Neil Wyatt26/05/2020 17:52:40
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Interesting that some questions the potential for it to generate a useful g-force, yet the 4200 rpm they quote to give 2000g is not much different from the typical 3,750 rpm of a fidget spinner.

Neil

Michael Gilligan26/05/2020 23:34:15
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This, from the third page of the PDF, seems key to their success:

Despite the relatively low spinning speed with large variations, the filtration efficiency of the Dx-FS is high owing to fluid-assisted separation technology (FAST28; Fig. 2).

____

... and it’s worth comparing the sort of figures that might be used in a Lab centrifuge: **LINK**

https://www.researchgate.net/post/What_is_the_moderate_rpm_and_minutes_for_harvesting_bacteria/58ef77d7404854f6b311da72/citation/download

MichaelG.

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