Locomotion of Microstructures Driven by Algae Cells

Algae cells (Chlamydomonas reinhardtii) have been controlled as microrobots to move and carry cargoes. But the cargoes are usually small relative to the size of C. reinhardtii. In this paper, we fabricated various microstructures by UV curing device. The experiments proved that a fairly big gear with diameter of 500 μm could be rotated driven by C. reinhardtii cells. The thrust force was analyzed. It's expected that the C. reinhardtii could play a new role in the field of bioactuation.