A new method of creating microscopic robots has appeared

The researchers explained that all engineers who create microscopic moving

robots face two problems. They can't make parts so they don't break when bent or control actuators using electrical signals.

To overcome these problems, scientists presentednew technology: surface electrochemical actuators (SEA). Each of them is made of a thin layer of platinum, 7 nm thick, on one side it is covered with a titanium layer 2 nm thick. The entire drive is only a dozen atoms thick, making it flexible enough to deform without breaking.

So scientists came up with a million variants of robots, inthey can use different versions of the same technology. Now researchers are creating several hundred devices to test them in large quantities in different environments - including water.

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Such microrobots are very inexpensive to produceand, despite their disposability, they are not inferior in functionality to real devices. With solar panels and SEA as actuators, robots can be powered by laser light or even regular sunlight and run indefinitely. Moreover, they can respond to a light signal within 10 ms—the limit imposed by the viscous resistance of the fluid.

Now robots move at a speed of about 1μm / s. However, peak velocities can be as high as 30 μm / s. Scientists plan to test devices in different environments and in the future design full-fledged models in the same way.

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