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Photographs obtained during burst pressure tests in COC and PDMS microfluidic devices. The pressurized channels are indicated by the white arrows. (A) COC device with 0.2 MPa and no deformation observed in the channel; (B) COC device with 0.4 MPa and still no deformation observed in the channel; (C) PDMS device with 0.2 MPa and swollen channel; and (D) PDMS device with 0.25 MPa with an unsealed channel due to the high applied pressure.
