Figure 1: Give us a smile. | Nature

Figure 1: Give us a smile.

From: The manifold faces of DNA

Figure 1

a, A folding path to make a DNA ‘smiley’. An even number of double helices is filled into the desired shape in the order of colours in the spectrum from red (start) to violet (end). b, An atomic force microscopy image of the finished product. (From Fig. 2 on page 299; scale bar, 100 nm.)