JCP Nameplate
  • Volume/Page
  • Keyword
  • DOI
  • Citation
  • Advanced
   
 
 
 

You Tube Flickr Twitter UniPHY Group iResearch App Facebook

Journal of Chemical Physics / Volume 136 / Issue 2 / ARTICLES / Polymers and Complex Systems

J. Chem. Phys. 136, 024902 (2012); http://dx.doi.org/10.1063/1.3674304 (7 pages)

Weak-to-strong confinement transition of semi-flexible macromolecules in slit and in channel

Peter Cifra

Polymer Institute, Slovak Academy of Sciences, Dúbravská cesta 9, 845 41 Bratislava 45, Slovakia

View MapView Map

(Received 27 September 2011; accepted 12 December 2011; published online 9 January 2012)

We compare confinement of stiff macromolecule in channel and in slit. Whereas in the channel a distinct and established transition exists, we elucidate here an ongoing controversy reported from previous experiment and simulation on existence of such transition in the slit. Our extensive molecular simulations in both geometries show only a very weak conformational crossover between moderate and strong confinements in slit in the same range of confinements where the distinct transition in channel is observed. In contrast to situation in channels relatively stable hairpin-like structures are not indicated around this weak transition in the slit. Observed difference from the prediction on behavior in blob regime under moderate confinement is explained by a crossover between dimensionalities in the slit and the extent of ideal conformation statistics to which the stiffer chains are prone. The strong confinement regime of stiff chain in slit characterized here has not been interpreted yet and it differs from the respective saturation-like Odijk regime in the channel.

© 2012 American Institute of Physics

Article Outline

  1. INTRODUCTION
  2. METHOD
  3. RESULTS AND DISCUSSION
  4. CONCLUSIONS

RELATED DATABASES

To view database links for this article, you need to log in.

KEYWORDS and PACS

Keywords

macromolecules, molecular configurations

PACS

  • 36.20.Ey

    Conformation (statistics and dynamics)

  • 33.15.Bh

    General molecular conformation and symmetry; stereochemistry

ARTICLE DATA

Digital Object Identifier
http://dx.doi.org/10.1063/1.3674304

PUBLICATION DATA

ISSN

0021-9606 (print)  
1089-7690 (online)

Publisher

$abstract.society.value is a Member of CrossRef American Institute of Physics

For access to fully linked references, you need to log in.
    W. W. Reisner, K. J. Morton, R. Riehn, Y. M. Wang, Z. Yu, M. Rosen, J. C. Sturm, S. Y. Chou, E. Frey, and R. H. Austin, Phys. Rev. Lett. 94, 196101 (2005).

    P.-K. Lin, C.-C. Fu, Y.-L. Chen, P.-K. Wei, C. H. Kuan, and W. S. Fann, Phys. Rev. E 76, 011806 (2007).

    D. J. Bonthuis, C. Meyer, D. Stein, and C. Dekker, Phys. Rev. Lett. 101, 108303 (2008).

    J. Moon and H. Nakanishi, Phys. Rev. A 44, 6427 (1991).

    P. Cifra, J. Chem. Phys. 131, 224903 (2009)JCPSA6000131000022224903000001.

    D. I. Dimitrov, A. Milchev, K. Binder, L. I. Klushin, and A. M. Skvortsov, J. Chem. Phys. 128, 234902 (2008)JCPSA6000128000023234902000001.

    I. Ali, D. Marenduzzo, and J. M. Yeomans, Phys. Rev. Lett. 96, 208102 (2006).

    Y. Yang, T. W. Burkhardt, and G. Gompper, Phys. Rev. E 76, 011804 (2007).


Figures (6)

Access to article objects (figures, tables, multimedia) requires a subscription; log in to view available files.
(Access to supplementary files, where available, is free for this journal.)


Close

Google Calendar

ADVERTISEMENT

Your Recent History Recent History Help

Recently Viewed

  1. Weak-to-strong confinement transition of semi-flexible macromolecules in slit and in channel
  2. Molecular dynamics simulation study of the water-mediated interaction between zwitterionic and charged surfaces
  3. Low-energy electron scattering with the purine bases of DNA/RNA using the R-matrix method
  4. Vibrational dynamics of pyrrole via frequency-domain spectroscopy
  5. Experimental and theoretical investigation of the triple differential cross section for electron impact ionization of pyrimidine molecules
Go to AIP Home
Copyright © American Institute of Physics
close