%0 Journal Article
%A Ramachandran, S.
%A Komura, S.
%A Seki, K.
%A Gompper, G.
%T Dynamics of a polymer chain confined in a membrane
%J The European physical journal / E
%V 34
%@ 1292-8941
%C Berlin
%I Springer
%M PreJuSER-15475
%P 46
%D 2011
%Z We thank H. Diamant, Y. Fujitani, M. Imai, T. Kato and N. Oppenheimer for useful discussions. This work was supported by KAKENHI (Grant-in-Aid for Scientific Research) on Priority Area "Soft Matter Physics" and Grant No. 21540420 from the Ministry of Education, Culture, Sports, Science and Technology of Japan.
%X We present a Brownian dynamics theory with full hydrodynamics (Stokesian dynamics) for a Gaussian polymer chain embedded in a liquid membrane which is surrounded by bulk solvent and walls. The mobility tensors are derived in Fourier space for the two geometries, namely, a free membrane embedded in a bulk fluid, and a membrane sandwiched by the two walls. Within the preaveraging approximation, a new expression for the diffusion coefficient of the polymer is obtained for the free-membrane geometry. We also carry out a Rouse normal mode analysis to obtain the relaxation time and the dynamical structure factor. For large polymer size, both quantities show Zimm-like behavior in the free-membrane case, whereas they are Rouse-like for the sandwiched membrane geometry. We use the scaling argument to discuss the effect of excluded-volume interactions on the polymer relaxation time.
%K Diffusion
%K Hydrodynamics
%K Membrane Proteins: chemistry
%K Membrane Proteins: metabolism
%K Molecular Dynamics Simulation
%K Particle Size
%K Polymers: chemistry
%K Polymers: metabolism
%K Solvents: chemistry
%K Membrane Proteins (NLM Chemicals)
%K Polymers (NLM Chemicals)
%K Solvents (NLM Chemicals)
%K J (WoSType)
%F PUB:(DE-HGF)16
%9 Journal Article
%$ pmid:21562968
%U <Go to ISI:>//WOS:000291296600001
%R 10.1140/epje/i2011-11046-3
%U https://juser.fz-juelich.de/record/15475