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Percentage of knotted linear DNA chains inside slits (a) and cylindrical channels (b) of transversal effective size Deff. Different curves refer to different DNA contour lengths. The estimated relative errors on the knotting probability are smaller than 1% for Deff > 200 nm and about of 3–4% for Deff < 200 nm. The knotting data for linear chains inside channels are based on the study of ref. [29]
