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Figure 11
Transmission photography of single-strand (a), (c) and double-strand (b), (d) 2D sinusoidal waves (a), (b) and 3D DNA helices (c), (d) using [\lambda = 1.54\sigma]. Each helix is made of a backbone of N = 70 particles with a pitch of [p = 34\sigma] and a diameter of [20\sigma]. There are 10 particles per pitch. The two helices in the double-strand structure are offset by 3/8 pitch. The particle size in the insets is set as [5\sigma] to enhance visibility.

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