A simplified method for capillary embedment into microfluidic devices - exemplified by sol-gel-based preconcentration.

We here describe an alternative method of embedding functionalized capillaries into microdevices fabricated in PDMS. The capillaries have square-shaped outer dimensions and fit into elastic PDMS channel networks of similar dimensions. By modifying the capillary off-chip, the technique makes it possible to integrate a new chip function without risking… CONTINUE READING