Cyborg bees to be Chinese military scouts
The bees – part insect, part machine – could serve as military scouts or be used to search for survivors following a natural disaster.
Zhao Jieliang, a professor at the Beijing Institute of Technology, and his team recently developed the world's lightest brain controller – weighing only 74 milligrams, or less than a pinch of salt.
The device is strapped to the back of a worker bee and pierces its brain with three needles to instruct it to fly in specific directions.
Based on the tests conducted by Prof Zhao and his team, nine times out of 10 the device worked and the bees obeyed.
With this type of technology, the scientists believe that 'cyborg bees' be used in covert operations, or missions in locations inaccessible to humans.
The micro devices can be equipped with cameras, listening devices and sensors that allow the insects to collect and record information, which can then be relayed back to their operator.
Given their small size, they could also be used for discrete military or security operations as they would be able to crawl through small spaces that humans and larger robots wouldn't be able to reach and do so without arousing suspicion.
'Insect-based robots inherit the superior mobility, camouflage capabilities and environmental adaptability of their biological hosts,' Prof Zhao and his colleagues wrote in their paper, which was published in the Chinese Journal of Mechanical Engineering on June 11.
'Compared to synthetic alternatives, they demonstrate enhanced stealth and extended operational endurance, making them invaluable for covert reconnaissance in scenarios such as urban combat, counterterrorism and narcotics interdiction, as well as critical disaster relief operations,' they wrote.
Earlier reports on this research showed scientists outfitting other insects, such as beetles, with microchips and wiring, which they would use to control the bug's movement with infrared rays and bluetooth signals.
One of the 'backpacks' that the scientists had developed, weighed only 23mg, nearly a third of what the cyborg bees carry.
Scientists in Singapore have also developed miniature cyborg controllers, but these were bigger and heavier.
These devices however were strapped to cockroaches, which were used to help the search and rescue efforts following Myanmar's 7.7 magnitude earthquake in March.
Several other countries, including the US and Japan are also taking part in the race to create cyborg insects.
While Prof Zhao's team has made great strides in advancing the technology, challenges remain.
For one, the current batteries aren't able to last very long, but any larger and the packs would be too heavy for the bees to carry.
The same device cannot easily be used on different insects, as each responds to signals on different parts of their bodies.
China has been working to miniaturise its technology in other fields, with the country unveiling mosquito-sized drones back in June as well.
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