By Hauwa Ali
A team of Chinese scientists from Sichuan University in southwest Chinahave developed a robotic fish to eat up microplastics in the oceans in bid to rid the world’s oceans of plastic pollution.
The robot fishes which are soft to touch and just 1.3 centimetres (0.5 inch) in size when tested, suck up microplastics in shallow water.
“The team aims to enable them to collect microplastics in deeper water and provide information to analyse marine pollution in real time,” said Wang Yuyan, one of the researchers who developed the robot.
“We developed such a lightweight miniaturised robot. It can be used in many ways, for example in biomedical or hazardous operations, such a small robot that can be localised to a part of your body to help you eliminate some disease.”she added.
The black robot fish is irradiated by a light, helping it to flap its fins and wiggle its body. The Scientists can control the fish using the light to avoid it crashing into other fish or ships.
“If it is accidentally eaten by other fish, it can be digested without harm as it is made from polyurethane, which is also biocompatible,” Wang said.
The fish is able to absorb pollutants and recover itself even when it is damaged. It can swim up to 2.76 body lengths per second, faster than most artificial soft robots.
“We are mostly working on collection (of microplastics). It is like a sampling robot and it can be used repeatedly,” she said.
