Figure 5
From: Light-driven micro-tool equipped with a syringe function

The micro-tool can be used as a tiny pump. (a) A relatively large number of polystyrene beads (1 μm diameter) are dispersed in the trapping medium, and the micro-tool is used to collect them. (b) By changing the location of the heating beam, the micro-tool can be used to eject the captured particles by using the microbubble as a light-controlled piston. See Supplementary Material.