In Ref. 1, the wall potential for a silica surface in the Bionano Genomics buffer was incorrectly stated as having a constant value of ψwall ∼ 100 meV. Apart from the typographical error in the unit and the sign, the value is also incorrect. The solutions to Eqs. (5), (10), and (11) of Ref. 1 yield the results in Table I. The value of ψwall affects Figs. 2 and 6 of the original manuscript. Corrected figures appear here as Figs. 1 and 2. In the last paragraph of Sec. II of Ref. 1, the statement "the semiflexible chain model of Eq. (6) predicts δ ∼ 11.05λD, while the rodlike model of Eq. (7) predicts δ ∼ 4.73λD" should be replaced with "the semiflexible chain model of Eq. (6) predicts δ ∼ 10.49λD, while the rodlike model of Eq. (7) predicts δ ∼ 4.45λD." The remainder of Ref. 1 and the key conclusions are not affected by this erratum. (Table Presented).
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