Comment on "Equilibrium conformation of polymer chains with noncircular cross section".

نویسندگان

  • Alexander Gerhardt-Bourke
  • Ngamta Thamwattana
چکیده

In this Comment, we point out that the Euler-Lagrange equations, which are referred to as the general equilibrium equations by Zhao et al. [Phys. Rev. E 74, 032801 (2006)] are incorrect along with the equations which are derived from them. The correct equations are provided in this Comment. We produce new numerical results with the use of the correct equations.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Equilibrium conformation of polymer chains with noncircular cross section.

In this paper we derive the general equilibrium equations of a polymer chain with a noncircular cross section by the variation of the free energy functional. From the equilibrium equation of the elastic ribbon we derive analytically the equilibrium conformations both of the helical ribbons and the twisted ribbons. We find that the pitch angle of the helical ribbons depends on the ratio of the t...

متن کامل

Comment on "General equilibrium shape equations of polymer chains".

In this Comment, we point out that the Euler-Lagrange equations, which are referred to as the general equilibrium shape equations presented by Zhang et al. [Phys. Rev. E 70, 051902 (2004)] are incorrect, along with equations derived from them. The correct equations are provided here and they are cross-checked using certain energy functions previously presented in the literature. Further, with t...

متن کامل

Noninvasive probing of the spatial organization of polymer chains in hydrogels using fluorescence resonance energy transfer (FRET).

Hydrogels are increasingly used in a variety of biomedical applications1-3 owing to their many advantageous features. Physical properties of hydrogels formed from cross-linking between polymer chains are regulated with the cross-linking density, type of crosslinking molecules, and chemistry and molecular weight of polymer chains. It is believed that the spatial conformation and organization of ...

متن کامل

Large electrostrictive strain at gigahertz frequencies in a polymer nanoactuator: Computational device design

Using molecular dynamics with a first-principles-based force field sdenoted MSXXd, we show that large electrostrictive strains s,5%d at extremely high frequencies sover ,109 Hzd can be achieved in a polysvinylidene-fluorided nanoactuator if the packing density of the polymer chains is chosen appropriately. We control the packing density by assembling the polymer chains on a silicon k111l surfac...

متن کامل

Asymmetric Coils and Travelling Waves

1. Asymmetric Volume Coils Asymmetric, noncircular volume coils are required in situations where the available access bore is noncircular in cross section, such as for table-top applications [1] or where the gradient bore is noncircular [2]. They consist of ladder network resonators such as the birdcage [3] or TEM [4] coil that have been modified by placing their rungs on a cylindrical surface ...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:
  • Physical review. E, Statistical, nonlinear, and soft matter physics

دوره 87 4  شماره 

صفحات  -

تاریخ انتشار 2013