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North Carolina State University engineers have utilized vacuum to create a more efficient, hands-free method for filling complex microchannels with liquid metal. Their work addresses two of the most common difficulties in creating liquid metal-filled microchannels and may enable broader use of liquid metals in electronic and microfluidic applications.
Shown here are two complex microfluidic designs completed with vacuum filling: a branched tree and a circuit board.Image credit: NC State University
