
Taking a cue from biological cells, researchers from MIT, Columbia University, and elsewhere have developed computationally simple robots that connect in large groups to move around, transport objects, and complete other tasks.
This so-called “particle robotics” system — based on a project by MIT, Columbia Engineering, Cornell University, and Harvard University researchers — comprises many individual disc-shaped units, which the researchers call “particles.” The particles are loosely connected by magnets around their perimeters, and each unit can only do two things: expand and contract. (Each particle is about 6 inches in its contracted state and about 9 inches when expanded.) That motion, when carefully timed, allows the individual particles to push and pull one another in coordinated movement. On-board sensors enable the cluster to gravitate toward light sources.
In a Nature paper published today, the researchers demonstrate a cluster of two dozen real robotic particles and a virtual simulation of up to 100,000 particles moving through obstacles toward a light bulb. They also show that a particle robot can transport objects placed in its midst.
Particle robots can form into many configurations and fluidly navigate around obstacles and squeeze through tight gaps. Notably, none of the particles directly communicate with or rely on one another to function, so particles can be added or subtracted without any impact on the group. In their paper, the researchers show particle robotic systems can complete tasks even when many units malfunction.
The paper represents a new way to think about robots, which are traditionally designed for one purpose, comprise many complex parts, and stop working when any part malfunctions. Robots made up of these simplistic components, the researchers say, could enable more scalable, flexible, and robust systems.
“We have small robot cells that are not so capable as individuals but can accomplish a lot as a group,” says Daniela Rus, director of the Computer Science and Artificial Intelligence Laboratory (CSAIL) and the Andrew and Erna Viterbi Professor of Electrical Engineering and Computer Science. “The robot by itself is static, but when it connects with other robot particles, all of a sudden the robot collective can explore the world and control more complex actions. With these ‘universal cells,’ the robot particles can achieve different shapes, global transformation, global motion, global behavior, and, as we have shown in our experiments, follow gradients of light. This is very powerful.”
Image Credit: MIT/ Youtube

News This Week
Paradoxical replacement tissue for medicine
A material that thickens when you pull on it seems to contradict the laws of physics. However, the so-called auxetic effect, which also occurs in nature, is interesting for a number of applications. [...]
What if aging weren’t inevitable, but a curable disease?
Each Cyclops had a single eye because, legend has it, the mythical giants traded the other one with the god Hades in return for the ability to see into the future. But Hades tricked [...]
Chemistry in the turbulent interstellar medium
Over 200 molecules have been discovered in space, some (like Buckminsterfullerene) very complex with carbon atoms. Besides being intrinsically interesting, these molecules radiate away heat, helping giant clouds of interstellar material cool and contract [...]
Metal-organic framework captures and converts toxic air pollutant into industrial chemical
An international team of scientists, led by the University of Manchester, has developed a metal-organic framework, or MOF, material that provides a selective, fully reversible and repeatable capability to capture a toxic air pollutant, [...]
Jamilee Baroud Podcast – Jamilee interviews Robin Farmanfarmaian author of “The Patient as CEO”
This week Jamilee interviews Robin Farmanfarmaian. She is a professional speaker and entrepreneur, author of "The Patient as CEO" and "The Thought Leader Formula". Robin is the CEO and Co-founder of ArO. From Jamilee's [...]
Directional control of self-propelled protocells
Synthetic protocells can be made to move toward and away from chemical signals, an important step for the development of new drug-delivery systems that could target specific locations in the body. By coating the [...]
Silver and titanium nanomaterials present in wastewater may have toxic effects on crustaceans and fish cells
You may not always think about it when you do your laundry or flush the toilet; but whatever you eat, wear or apply on your skin ends up in wastewater and eventually reaches the [...]
NMIN’s first round of research investment
An update from the NanoMedicines Innovation Network (NMIN): On August 21, 2019, the Board of Directors approved NMIN's initial investments of $4.3M in nanomedicines research. Over a two-year period, NMIN will support [...]
Researchers design ‘intelligent’ metamaterial to make MRIs affordable and accessible
Boston University researchers have developed a new, "intelligent" metamaterial – which costs less than ten dollars to build – that could revolutionize magnetic resonance imaging (MRI), making the entire MRI process faster, safer, and [...]
World-leading microscopes take candid snapshots of atoms in their ‘neighborhoods
We can directly see the hidden world of atoms thanks to electron microscopes, first developed in the 1930s. Today, electron microscopes, which use beams of electrons to illuminate and magnify a sample, have become [...]
Jamilee Baroud Podcast – Frank Boehm (NA Founder) Interview
In her inaugural podcast, Jamilee interviews Frank Boehm of NanoApps Medical Inc and NanoApps Athletics Inc. From Jamilee's podcast: Welcome to the first episode of "In a Click". On todays show I chat with [...]
Updated – Worldwide Press for “Human Brain/Cloud Interface”
“We’ll have nanobots that… connect our neocortex to a synthetic neocortex in the cloud. Our thinking will be a…. biological and non-biological hybrid.” Ray Kurzweil, TED 2014 UPDATE - October 30 2019 Since [...]
Scientists Demonstrate Direct Brain-to-Brain Communication in Humans
We humans have evolved a rich repertoire of communication, from gesture to sophisticated languages. All of these forms of communication link otherwise separate individuals in such a way that they can share and express [...]
New Ultrasensitive Optical Nanoprobes to Monitor Bioelectric Activity of Neurons
Ultrasensitive nanoscale optical probes have been created by scientists from UC Santa Cruz, to observe the bioelectric activity of neurons and other excitable cells. This innovative readout technology could allow researchers to analyze how [...]
Potential Nanotechnology Treatment for Celiac Disease Revealed
Advances made during recent clinical trials mean that those suffering from celiac disease may soon be able to reintroduce gluten back into their diet. This breakthrough is down to a progressive new treatment that [...]
Prime editing: DNA tool could correct 89% of genetic defects
A new way of editing the code of life could correct 89% of the errors in DNA that cause disease, say US scientists. The technology, called prime editing, has been described as a "genetic [...]
Leave A Comment