论文标题
用feringa纳米发动机测试结物理
Testing the physics of knots with a Feringa nanoengine
论文作者
论文摘要
我们使用债券波动模型来研究两个聚合物环的收缩过程，这些聚合物环的收缩过程与$ n $段都连接到Feringa发动机的底部和顶部。分子的大小的变化以及两条链的折叠遵循近似缩放预测，这些预测是通过假设链被限制在有效管中的。构象数据在将其绘制为$ w _ {\ text {n}} n^{ - 1/4} $的函数时，可以重叠，其中$ w _ {\ text {n}} $是两个链的绕组数，它们与纽约''''''''''''''''''''''''''''''''''''''''''''''''''''链。我们的数据还支持沿A-热聚合物轮廓的结构较弱的定位，其本地化指数$ t \ of Youty of0.78 $。
We use the bond fluctuation model to study the contraction process of two polymer loops with $N$ segments that are connected each to the bottom and top part of a Feringa engine. The change in the size of the molecules as well as the folding of the two strands follows approximately scaling predictions that are derived by assuming that the strands are confined inside an effective tube. Conformation data can be overlapped when plotting it as a function of $W_{\text{n}}N^{-1/4}$, where $W_{\text{n}}$ is the winding number of the two strands that is proportional to the number of blobs inside the ``knotted'' region of the molecule and $N$ is the degree of polymerization of the strands. Our data also supports a weak localization of the knots along the contour of a-thermal polymers with a localization exponent $t\approx0.78$.
