by Tibi Puiuby
December 18, 2024
from ZMEScience Website





A researcher shows a Madagascar hissing cockroach,

mounted with a "backpack" of electronics and a solar cell

that enable remote control of its movement.

This is part of a previous effort from 2022

by researchers in Japan.

Similar cyborg-roaches have been demonstrated

by research labs across the world.

Credit: REUTERS/Kim Kyung-Hoon



The new system

can turn cockroaches into cyborgs

in under 70 seconds.

In a lab in Singapore, robots are hard at work:

not on cars or gadgets, but on cockroaches.

Grab a chair, you might want to sit down for this one...

This work is part of a breakthrough system designed to convert living insects into "cyborgs," combining biology with engineering in a process that's faster, more efficient, and eerily precise

I'm talking about what essentially amounts to a factory of insect cyborgs.

The goal...?

To turn one of the world's most resilient creatures into an invaluable tool for navigating disaster zones...

Madagascar hissing cockroaches (Gromphadorhina portentosa), famed for their toughness, take center stage.

Researchers at Nanyang Technological University have automated the delicate process of equipping these arthropods with tiny electronic backpacks, reducing assembly time from 30 minutes to just 68 seconds.

Dubbed the "Cyborg Insect Factory," the system uses a robotic arm guided by a type of AI known as deep learning to implant control mechanisms that steer the insects via antenna stimulation.

"We're laying the foundation for scalable production and deployment in real-world applications," the researchers wrote in their preprint study on arXiv. (Cyborg Insect Factory - Automatic Assembly System to Build up Insect-computer Hybrid Robot based on Vision-guided Robotic Arm Manipulation of Custom Bipolar Electrodes)

The Cyborg Insect Factory

Diagram showing how

the insects are attached to the electrodes

creating a hybrid robot
Insect-computer hybrid robot

and its automatic assembly setup.

Credit: arXiv (2024).

Insect-computer hybrids, sometimes called biobots, have been the subject of research for years.

The idea is simple:

harness the natural mobility of insects and augment it with robotic control systems.

Unlike fully mechanical robots, these hybrids don't need complicated motors or large power supplies:

they use the insects' own legs and energy...

Cockroaches might not be the most beloved creatures, but their biology makes them ideal for this kind of work.

Agile, lightweight, and capable of traversing complex terrain, they outperform even the most advanced biomimetic robots. Their natural resilience is complemented by their electronic upgrades, allowing precise remote control and even speed adjustments.

But, until now, creating these cyborg insects required delicate and time-consuming manual work.

"The outcome of the surgery was highly influenced by the human's operation," the researchers wrote.

This inconsistency made mass production impractical.

The new method pioneered in Singapore changes that.

Using a robotic arm, a vision-guided system, and a set of tiny electrodes, the team can assemble a cyborg cockroach in just 68 seconds.

 

The electrodes are implanted between the insect's pronotum (the plate covering its thorax) and its mesothorax, which is near the cockroach's nerve pathways that control its legs.

 

When the electrodes receive electrical pulses, they stimulate these nerves.

Each cyborg cockroach is equipped with a lightweight backpack containing a communication system and electrical stimulators.

A small jolt to one antenna directs the insect left; another sends it scurrying right. These particular roaches, Gromphadorhina portentosa, have an added quirk:

they hiss...

By forcing air through tiny openings called spiracles, they produce sounds that can signal aggression or disturbance.

It's a dramatic touch to a creature that's already upending expectations.

How It Works

The process starts by gently fixing the anesthetized cockroach in place and exposing the target area.

A deep-learning algorithm then guides the robotic arm to precisely implant the electrodes.

 

The electrodes are custom-designed to puncture the membrane and hook securely in place.

The robotic arm's precision is of the utmost importance.

 

Even slight variations in electrode placement could affect the cockroach's response.

By automating the process, the team eliminated these inconsistencies, ensuring each cyborg insect behaved predictably.

Tests showed the automatically assembled cyborgs performed just as well as those assembled by hand.

They could turn left or right with angles of up to 80 degrees and decelerate by over 60 percent.

In a field trial, a team of four cyborg cockroaches successfully navigated a small, obstacle-filled outdoor area, covering 80 percent of the terrain in just over ten minutes.

While the electrical pulses can direct the cockroach to turn or slow down, these commands don't completely strip the insect of its autonomy.

The cockroach's own sensory system is still active, and it can respond to environmental cues.

For example,

if an obstacle appears in its path, the cockroach may still try to navigate around it naturally.

This partial control means the hybrid insects are not mindless robots - they are more like guided agents, blending the adaptability of living organisms with the precision of robotic systems.

So, the electrodes act like suggestions rather than absolute commands, nudging the cockroach in a specific direction.

Automating the process opens the door to producing hundreds or even thousands of these hybrid creatures for missions like locating survivors in collapsed buildings or exploring hazardous environments.

But the work isn't done yet.

While these cyborgs can be steered remotely, managing swarms of them simultaneously remains a challenge.

The researchers envision a future where such armies operate autonomously, requiring little human intervention.

A Step Towards Swarm Robotics

The concept of cyborg insects has sparked mixed reactions, ranging from amazement to unease.

Some see them as a cutting-edge tool for disaster response, while others wrestle with the ethics of merging biology with technology.

However, there are potential upsides to swarm robotics.

In a disaster scenario, dozens or even hundreds of these hybrid insects could be deployed to search through rubble, using their natural ability to squeeze through tight spaces.

Other potential uses include,

inspecting hard-to-reach areas in factories or exploring hazardous environments like collapsed mines.

The researchers believe their method lays the groundwork for,

"scalable production and deployment in real-world applications."

Still, ethical questions remain.

As with any technology involving living organisms, the welfare of the insects is a concern. The team used anesthesia to minimize discomfort during the assembly process, but long-term impacts are less clear.

There's also the question of control:

how much autonomy should these cyborg insects have, and what safeguards are needed...?