Moving microfluidics from the lab bench to the factory floor

In the not-too-distant future, plastic chips the size of flash cards may quickly and accurately diagnose diseases such as AIDS and cancer, as well as detect toxins and pathogens in the environment. Such lab-on-a-chip technology — known as microfluidics — works by flowing fluid such as blood through microscopic channels etched into a polymer’s surface. Scientists have devised ways to manipulate the flow at micro- and nanoscales to detect certain molecules or markers that signal disease.

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