Antony Orth, Ethan Schonbrun and Kenneth B. Crozier
Lab Chip, 2011,11, 3810-3815
DOI:
10.1039/C1LC20114J,
Paper
We demonstrate a novel optical pressure measurement platform for microfluidics. The pressure sensors operate as pneumatically-tunable microlenses whose focal lengths vary with pressure. We show that pneumatic lens arrays can be used to perform sensitive multiplexed pressure measurements in microfluidic channels.