"To test her idea, she [Michelle Khine] whipped up a channel design in AutoCAD, printed it out on Shrinky Dink material using a laser printer, and stuck the result in a toaster oven. As the plastic shrank, the ink particles on its surface clumped together, forming tiny ridges. That was exactly the effect Khine wanted. When she poured a flexible polymer known as PDMS onto the surface of the cooled Shrinky Dink, the ink ridges created tiny channels in the surface of the polymer as it hardened. She pulled the PDMS away from the Shrinky Dink mold, and voilĂ : a finished microfluidic device that cost less than a fast-food meal."
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Original Language: English
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Sources
Elizabeth Svoboda, "Michelle Khine, 32: A children’s toy inspires a cheap, easy production method for high-tech diagnostic chips," MIT Technology Review (2009).
https://en.wikiquote.org/wiki/Shrinky_Dinks
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Shrinky Dinks
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