Figure 1
From: Light-driven micro-tool equipped with a syringe function
Fabrication of micro-tools for material transport via enhanced light-induced thermal convection. (a) Each micro-tool is fabricated using the two-photon-polymerization process. A mask fabricated on top of each micro-tool defines the metal-coated region on the micro-tool. (b) After the micro-tools have been developed, a thin adhesion layer of titanium (1 nm) is first deposited, followed by a thin gold layer (5 nm), using electron beam physical vapor deposition. The mask shields the rest of the micro-tool and exposes only the region where the metal layer is going to be deposited (c) Selected micro-tools are collected by carefully dislodging and then drawing them into a fine glass capillary tube. They are subsequently loaded into a cytometry cuvette for trapping experiments. Each micro-tool has a footprint of 40 μm × 40 μm.
