Submission + - Diving suits allow cyborg cockroaches to also search for survivors underwater (smithsonianmag.com)
Previously, researchers created electrical implants to control cockroaches’ movements for search-and-rescue missions. Now, they’ve made 3D-printed suits that provide oxygen, allowing the critters to survive submerged for up to three hours.
Scientists have developed tiny diving suits for cockroaches with electrical implants to control their movements. The technology, described in the journal Nature Communications on June 29, builds on previous research that created remote-controlled insects. The goal is to deploy them to survey damage and search for survivors after natural disasters, but they were limited to dry land.
Now, a team led by engineer Hirotaka Sato has fashioned Madagascar hissing cockroaches that can survive underwater for up to three hours, allowing them to be used in a wider range of scenarios.
“Our new insect diving suit works like the oxygen tank used by human divers. It generates oxygen and delivers it directly to the insect’s breathing holes, allowing the cyborg cockroach to survive and move in underwater or low-oxygen environments,” says Sato, of Nanyang Technological University in Singapore, in a statement.
Cockroaches could be a helpful rescue tool. They’ve evolved over millions of years to wiggle into tight spaces and survive harsh environmental conditions. The research team specifically worked with Madagascar hissing cockroaches because of their durability, lack of wings and large size of up to four inches long.