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Question 2. Audio transcript, Mike Flynn describes "labs on a CD."

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Full Transcript (below)


2. What does the machine that processes the CDs with biological samples look like, and how does it work? (1:22 MINUTES)

"Okay, the machine is about the size of a suitcase. Ah, it’s designed to be a relatively portable system. Umm, the way you would do a test is we have these micro-fluidic discs that look exactly like CDs that you might have on your CD player, except instead of having music inscribed into the CDs, what we’ve inscribing into them is very small, little pipes and valves and volumes that fluid can exist in. And so what you do is you take your sample – your water that has bacteria into it – you take a very, very small – like less than a drop of the water, and you put it into the CD. There’s a little hole that you drop the drop into. And then you take the CD, and just like you would on a normal CD player at your home, you insert the CD into the machine, and the machine starts to spin the CD. When it spins the CD, it causes the fluid to flow down through all the little flow paths and to mix with the different types of reagents and different types of reactants and then finally deposits the fluid into like a little small chamber that is transparent. The CD then stops spinning. And when it stops spinning, it places that little transparent window – that transparent volume right underneath a microscope. And then the microscope takes an image of what’s inside the drop that you just put inside the system.”

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