Engineers invented acoustically controlled microrobots
Researchers have developed microscopic remote-controlled mechanical devices whose motors are powered ultrasound. They can find many uses in medicine..
Using 3-D nanoprinting technology, engineers at the École Polytechnique de lausanne have created tiny, cage-sized soft capsules made entirely of biocompatible hydrogel. Their key elements are acoustic micromotors and mechanisms that are remotely activated by ultrasonic waves..
Using mechanical resonance, scientists can control the movement of robots and affect their environment. For example, by equipping the devices with pumps, a collection chamber and filters of different sizes, they can be used for biopsy, biochemical analysis, drug administration, or other therapeutic purposes.
Although the insertion of such microdevices is minimally invasive, they are much more difficult to remove. therefore all elements were made from materials that are safely degradable in the body. Changing the composition of the hydrogel allows you to adjust the life of the device depending on its task.
Scientists also announced last month that they are developing a technology for mass-producing laser-guided micro-robots that can go through a medical needle..
text: Ilya Bauer, photo: EPFL