Scientists build tiny biological robots from human cells

Harvard scientists have created tiny biological robots called "biobots" using human cells, which can imitate complex natural movements like swimming and flexing. These biobots hold the promise of precise drug delivery and tissue regeneration.

These biobots are made by combining muscle cells with a flexible 3D hydrogel scaffold. When exposed to light, the muscle cells contract, allowing precise control of their motion. By illuminating them with different light patterns, researchers can guide the biobots' actions, enabling tasks like swimming and object manipulation.

The development of these biobots harnesses the potential of biological systems for engineering purposes, offering opportunities for tailored drug delivery systems and controlled tissue repair and regeneration in the future.