Fig. 3: Release process of droplets stabilized by f-Au@SiO2 in passive traps.
From: On-demand light-driven release of droplets stabilized via a photoresponsive fluorosurfactant
a For hydrodynamic trap, the 532 nm laser was focused on the droplet interface at the inner side of the trap. 50 ms of illumination generated a sufficiently sizable bubble to push the droplet back into the main flow for release. b For floating trap, the 532 nm laser was focused on the upper droplet interface. With a 5 ms of illumination, bubble generated on top of the droplet pushed the droplet downward to the flow layer for release
