The fish-like robot can move in the water and absorb plastic shards as it walks.
REPUBLIKA.CO.ID, JAKARTA — The threat posed microplastic on the environment and the health of living things still need to be studied further. However, one thing is certain that microplastics are already widespread and will only get worse.
Now, scientists are trying to find a solution. Scientists are building fish-like robots that can move through water and absorb microscopic plastic shards as they walk. This robot is a revolutionary cleaning option that takes inspiration from nature.
Reported from New Atlas, Chinese researchers created a light-activated device in a bid to advance the design of a soft robot used to clean contaminated water.
The researchers used materials composite some mollusks, such as clams, are secreted as a lining for their inner shell. From this composite material, scientists develop robots.
The fish-shaped mini-robot measures just 15 mm (0.6 inches) in length, has great flexibility and durability, and has a near-infrared laser beam in its tail.
The fish moves forward at a speed of 2.67 body lengths per second as this laser is switched on and off, causing its tail to flap. According to the team, its speed is about the same as that of phytoplankton and faster than other soft-swimming robots of a similar design.
The team’s trials showed that the robot was capable of repeatedly absorbing polystyrene microplastics and transporting them to other sites. Impressively, the robot can repair itself after being disconnected.
Robots could be a useful tool for tackling microplastic pollution in severe aquatic environments thanks to their durability, speed and capacity to wipe away plastic particles, the researchers said. It could also serve as a model for other multipurpose robots with similar uses.
