Scientists claim breakthrough in building robots with dna




A group of German scientists have found a way to build robots on the basis of DNA. With a new technique, the potential for so-called ‘DNA origami’ can be much larger, for example by self-assembling parts.

The new technology has been developed at the Technical University of Munich. The scientists describe their methods and results in the latest edition of the renowned scientific journal Science. Normally dna strands made from strong connections between complementary building blocks that are called abbreviated A, T, C and G: an A fit to a T and a C befitting a G. The German researchers have found a way to pieces of DNA just let pairs based on form, giving weaker bonds and thereby provides more opportunities for assembly.

This new way of building blocks bind there is more control over the final shape and there is more flexibility. For example, the scientists demonstrated inter alia, that of building blocks may change shape by simply adjusting the temperature. Also, components are programmed to eventually assemble themselves. There is the technology described a good balance between firmness and adaptability, said the scientists.

With the technique have been demonstrated, several nano-devices. For example, there is an actuator built, but also a nano-robot which has the shape of a human being. The robot is an example of building blocks which have different self-assembled. Eventually, this kind of ‘DNA origami’ may be used for the construction of sensors or conveyors to deliver drugs at the correct location in the body.


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