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We demonstrated methods for collecting gaseous samples and aerosolized particles into microfluidic channels. Gas-liquid interfaces created by surface tension permit analytes to transfer from the environment into a microfluidic channel. In one structure of our design, hydrophobic-hydrophilic boundaries created a channel of liquid confined by gas-liquid interfaces in which analytes were collected. In...
We demonstrate methods for collecting gaseous and aerosolized particles into microfluidic channels. Surface tension creates gas-liquid interfaces to permit an analyte to transfer from a gaseous environment to a liquid microfluidic channel. In one device, hydrophobic/hydrophilic boundaries create a virtual channel of liquid in which analyte is collected. In the other device, pinning points create circular...
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