Folding robots controlled by magnetic fields can be used to study microscopic objects such as cells. Prof Orlin Velev of North Carolina State University explains how they work
What are your microbots made of?
We started with so-called ‘active particles’ that can perform simple tasks such as pushing and penetrating objects. Now we’re studying complex self-folding shapes, such as cubes. Our aim is to make interesting structures for use in future technologies. Our particles are small cubes with one side coated with metal. They become magnetic when we apply magnetic fields and are able to move and change shape.
How do you build a bot?
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