
Micron Size Toys?
Smaller than a human hair, the team at Leiden University can create this tugboat or other complex designs under 100 microns. Their research is really focused on creating “micro swimmers" with complex shapes to study motion in biological systems. But I love the boat! You can read about their work here. The tech they employ is called two-photon polymerization (2PP). Here is an illustration of how 2PP works. Zabidi et al. provides an overview of the technology in Additive M