NIST 'On-demand' Single-Molecule Drop Dispenser (IMAGE)

National Institute of Standards and Technology (NIST)

NIST 'On-demand' Single-Molecule Drop Dispenser

Caption

Water flows through a microfluidic channel, roughly 35 microns wide, and enters a narrow constriction where it breaks up into droplets. Varying the width of the constriction changes the size of the drops and lacing the water with desired molecules of just the right concentration causes the resulting droplets to pick up single molecules of interest 99 percent of the time.

Credit

C. López-Mariscal and K. Helmerson, NIST

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