Magnetic Micro-Robots


These are magnetic microrobots, just
millimeters in size. They bend and move in response to applied magnetic fields And with these magnetic fields
controlled by a gaming controller the micro robots can be driven carefully and
precisely. They can turn by changing the direction of the magnetic field. Roll in a rotating field And even grasp and jump It often feels like you’re playing a
video game. In some previous work I did as a demonstration I was pushing blocks
of material around and using a micro robot like a bulldozer. And the demonstration I
did was playing Tetris. The idea is this technique could be used
to assemble human organ tissues by arranging blocks of different types of
cells in particular patterns. The way these scientists actually fabricate the
micro robots is pretty ingenious. Tiny rare earth magnets are magnetized in a
strong magnetic field. Then they’re mixed into a UV resin that will harden when
exposed to UV light. The mixture is poured into a mold and placed on a stage
below which is a rotatable permanent magnet. This creates an adjustable
magnetic field to which all the tiny magnets in the resin align. When the
desired orientation is reached UV light cures the resin in one particular spot
locking those magnets in place. Then the magnetic field can be adjusted and the
next section cured. Ultimately the result is a flexible device with imbedded
magnets that have different orientations depending on where they are. This pattern of orientations is what gives these micro robots their unique
behavior in response to magnetic fields. If we can point multiple compass needles in opposite directions within a flexible
device, if we apply the field vertically those compass needles will both try to
orient and align with that applied field. With the right magnetic fields the results can be pretty
sophisticated. Watch this micro robot pick up a block and then roll with it over to a ramp. It rolls up the ramp, deposits the block at the top, and then
returns to its original position. The idea is that devices like this could be
used in medical applications. So this could be sending a device into fluid
areas in your body or into your gastrointestinal tract. For example a
capsule that you could swallow which will go passively through your GI tract,
have no wires attached and at the right moment we can activate a sampling
chamber basically to open up and take samples of either stomach or small
intestine contents, take biopsy samples of the intestinal wall. But grippers like
these may not be the only magnetic microrobots invading your body. A different research group has pioneered these even smaller peanut-shaped
magnetic particles. And under the right magnetic field conditions they form
swarms. This warm can take on different configurations: the vortex, where many
particles travel together like a school of fish, the chain, where particles line
up and travel single-file. And the ribbon, where motion is perpendicular to the
line of particles. One potential application of micro robotic swarms is
drug delivery. Each magnetic particle could carry a small amount of drug and
be guided toward the intended drug delivery site. So to make a swarm useful
for essential biomedical applications, you’d like to keep the swarm aggregated. You probably will not be able to see single micrometer sized particles but you could
see the entire swarm. So you’d like to keep it aggregated so you can move it
and keep track. But then going through tight environments, for example going
through blood vessels if your swarm, the overall swarm size is bigger than the
blood vessel then it doesn’t fit so you need to line them up and squeeze through
so that’s the motivation for being able to control the shape of the swarm. And, who knows, one day you might have swarms of magnetic microrobots cleaning your
teeth. another group of researchers has used
tiny magnetic robots to clear biofilms – those are communities of bacteria and
the protective sugar polymers around them. They typically build up on medical
devices, the insides of pipes, and on teeth. Can I ask, does this idea of
magnetic control of micro robots, does it supplant previous concepts? Like I’m trying to conceptualize this in terms of like you know sci-fi futures with
nanobots where I imagine you know we imagine these things as really
self-contained and you know powering themselves around the body and that sort
of stuff. Yeah, great question. So the advantage of
magnetic fields is that it’s a very scalable technique. So we can make
magnetic microbots that are single cell size and we can make them that are
centimeters in size and the principles behave similarly. It pulls off a lot of
the functionality to off-board magnetic coils. We can have a big
computer sitting there and power supply It’s a lot of the hard aspects of
driving a robot we can do as traditional size. You can have a big computer We can have medical imaging hooked up and do all these things off board and
then on board we’re just transmitting the magnetic field directly to the
device and so this our micro robot is basically then just like the mechanical
hand of the robot and the rest of the robot is really sitting on the table
beside the patient. Hey this episode of Veritasium is supported by viewers like
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it’s narrated by the author himself. I’m actually listening to it at the moment
and he may be changing my mind about the very nature of consciousness. What I find
so incredible is how recent this scientific field is and what it’s
revealing about how all of our brains work. Now when I’m listening to books
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100 thoughts on “Magnetic Micro-Robots

  1. this reminds me of monkey ball. you're not controlling the robots but rather the thing that controls the robots. like how you don't move the monkeys but the stage it'self

  2. You are amazing .you bring the real thing's ,which no one bring , on thier channel.I love this thing's.👍👍👍👍👍😎 I am mad of this thing's .

  3. Veritasium – "These are magnetic micro robots."

    Solid Snake – "War…….(inhales deeply from cigarette)…….has changed"

  4. Just imagine if the luciferien globalists used these in the water supplies, and carried people killing cells to kill billions of people.
    Be aware.. Not as impossible as you think…
    Answer…
    Choose Jesus Christ

  5. That method of making magnets can be used to make generators out of magnets, using the magnets to create circular kinetic motion which is then received using a alternator or something similar. Most would say this breaks the law of thermodynamics that says you can never make energy out of nothing, though most don’t know that magnets lose there magnetisms in this process, meaning your just converting the lifespan of the magnet into energy. (It is possible that to make magnets like the ones in the vid would use up more power then you could get, you could also just find a way to use neodymium magnets, but no one wants to do that)

  6. Everyone are talking about some "Big Hero 6", but it seems I am the only one, who thought aboth Stanislaw Lem's "The Invincible"…

  7. https://www.youtube.com/playlist?list=PLHg-FRIprD73OMjvdG9CqAWj1spPQCUNy
    You are ignorant to whats actualy happening on life! Heres some truth for you..

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