Auger Thomas, Auvray Loïc, Di Meglio Jean-Marc, Montel Fabien
Matière et Systèmes Complexes, Université Paris-Diderot & CNRS (UMR 7057), 10 rue Alice Domon et Léonie Duquet, 75013, Paris, France.
Univ Lyon, Ens de Lyon, Univ Claude Bernard, CNRS, Laboratoire de Physique, F-69342, Lyon, France.
Eur Phys J E Soft Matter. 2018 May 17;41(5):63. doi: 10.1140/epje/i2018-11674-y.
We study the flow injection of semiflexible polymers in a nanopore with a diameter smaller than the persistence length of the macromolecules. The suction model from de Gennes and Brochard is modified to take into account the effect of the rigidity of the polymer in the Odijk regime. We show that in this case of extreme confinement the flow threshold vanishes slowly and that in the limit of infinitely small nanopore the free energy barrier eventually disappears.
我们研究了直径小于大分子持久长度的纳米孔中半柔性聚合物的流动注入。对德热纳和布罗沙尔的抽吸模型进行了修正，以考虑聚合物在奥迪克区域的刚性影响。我们表明，在这种极端受限的情况下，流动阈值缓慢消失，并且在无限小纳米孔的极限情况下，自由能垒最终消失。
