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Tech for Good: Origami folding at a nanoscale 

Kristie Lu Stout
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CNN's Kristie Lu Stout travels to Seoul National University in South Korea where a student, Myoungseok Kim, discovered a new way of folding already folded DNA; in essence, origami of DNA origami. DNA Origami as a field has been around since 2006. It applies short strands (known as staples) programmed with specific bases along a long single strand of DNA, folding them according to the base bonds to make all types of shapes. Previously, DNA origami could only fold once, but by modeling DNA structures after paper creases, Kim and his professor, Kim Do-Nyun, have discovered a new world of motion triggered by things like PH levels, light and nucleic acid molecules. They believe that this technology can create structures with imminent real-world applications like systems for drug delivery or biosensors for early cancer detection. Finally, CNN's "Tech for Good" discovers how origami is inspiring nanotechnology in robotics at the University of Pennsylvania. Assistant professor Marc Miskin shows how these microscopic robots the size of a grain of salt can move with origami-inspired legs. Miskin believes these robots have the potential to change healthcare, for instance, through repairing damaged peripheral nerves.

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27 авг 2024

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