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Leak test of PMMA-based plastic lab-on-a-chip after photothermal bonding: (A) fluorescent images of bonded PMMA-based plastic lab-on-a-chip leak test with fluids of varying viscosity (water, ethanol, DMSO, mineral oil), (B) persistence analysis of bonded PMMA-based plastic lab-on-a-chip, (C) fluorescent image of bonded PMMA-based plastic lab-on-a-chip without leaking.
