A tiny robot-fish has been designed by scientists to remove microplastics from oceans. This 13-mm-long fish will swim around and adsorb the microplastics through its body. What is special about this fish is that its body is soft, flexible and self-healing. It is also a self-propelled fish. With the help of a light laser system in its tail, the fish can swim and flap around at almost 30 mm a second. It is similar to the speed at which plankton drifts in moving water.The robo-fish has been created from materials inspired by elements, which are available in the sea, like mother-of-pearl or nacre. It has been used in the interior covering of clam shells. A material similar to nacre was created by layering various microscopic sheets of molecules, as per nacre’s specific chemical gradient. It is also stretchy, flexible to twist, and can pull a weight up to 5 kg, as per the study 13-mm-long robot-fish designed by scientists to ‘eat’ microplastics in oceans - Science News