Table 1. Rotational stiffness coefficients of the double crossover, the single crossover, the open nick and the bulge.

Rotational stiffness coefficients [pN nm rad–1] (Figure 1B)	Double crossover	Single crossover	Open nick	Bulge
About axis x	1353	1353	13.53	13.53
About axis y	1353	1353	0	0
About axis z	135.3	13.53	13.53	13.53