Long-range many-body polyelectrolyte bridging interactions

被引:13
|
作者
Podgornik, R
Saslow, WM
机构
[1] Univ Ljubljana, Dept Phys, Ljubljana 1000, Slovenia
[2] Jozef Stefan Inst, Dept Theoret Phys, SL-1000 Ljubljana, Slovenia
[3] NICHHD, Lab Phys & Struct Biol, NIH, Bethesda, MD 20892 USA
[4] Texas A&M Univ, Dept Phys, College Stn, TX 77840 USA
来源
JOURNAL OF CHEMICAL PHYSICS | 2005年 / 122卷 / 20期
关键词
D O I
10.1063/1.1908870
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
We investigate polyelectrolyte bridging interactions mediated by charged, flexible, polyelectrolyte chains between fixed cylindrical macroions of opposite charge in a two-dimensional hexagonal crystalline array. We show that in the asymptotic regime of small macroion density, the polyelectrolyte-mediated attraction is long range, falling off approximately linearly with the macroion array density. We investigate the polyelectrolyte free energy as a function of the macroion density and derive several analytic limiting laws valid in different regimes of the parameter space.
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页数:13
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