World’s smallest tic-tac-toe game board made

1. Researchers from the California Institute of Technology have developed the world’s smallest tic-tac-toe game board by using dynamic DNA origami tiles.
2. DNA origami tiles are microscopic organic structures that can be programmed to transform into predesigned patterns.
3. Earlier, scientists had developed the world’s smallest version of the iconic Mona Lisa using the same technique.

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