Table 3.

Summary of the results for the different regimes of confinement in Figure 1. In the text, we normally refer to Transition II as the extended de Gennes regime. The minimum chain length is the size of the deflection segment or blob, as appropriate, and does not include numerical prefactors. The minimum chain length for entering regime I is unknown and there is no minimum chain length for the bulk. Based on Figure 3, the prefactor for the bulk extension should be between 1.5 and 2.2. The upper bound for D in the de Gennes regime is approximate.

Regime	Extension (〈X〉)	Minimum Chain Length	Channel Size
Odijk	Eq. (1)	D 2/3 $l_p^{1∕3}$	D ≪ lp
I	D −1.02	—	lp < D < 2lp
II	D (ν−1)/ν	$l_p^{1∕3}{D}^{4∕3}{w}^{-2∕3}$	$2l_p<D<l_p^2{w}^{-1}$
de Gennes	D (ν−1)/ν	$l_p^3{w}^{-2}$	$l_p^2{w}^{-1}<D<R_g$
Bulk	Rg	— -	D > Rg