Counterion-mediated attraction between two like-charged rods

被引：345

作者：

Ha, BY

Liu, AJ

机构：

[1] Department of Chemistry and Biochemistry, University of California, Los Angeles, CA

来源：

PHYSICAL REVIEW LETTERS | 1997年 / 79卷 / 07期

关键词：

D O I：

10.1103/PhysRevLett.79.1289

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We present a systematic theoretical approach to counterion-mediated interactions between like-charged rigid polymers, by treating condensed and free counterions as separate species in chemical equilibrium. We find that the condensed counterions introduce charge fluctuations along the length of the rods that give rise to attractive interactions, in quantitative agreement with recent simulations. This is similar to the van der Waals interaction, except that all multipoles, not just dipoles, must be included.

引用

页码：1289 / 1292

页数：4

共 20 条

[1] Barrat J. L., 1996, ADV CHEM PHYS, V94
[2] CONDENSATION OF DNA BY MULTIVALENT CATIONS - CONSIDERATIONS ON MECHANISM
BLOOMFIELD, VA
[J]. BIOPOLYMERS, 1991, 31 (13) : 1471 - 1481
[3] PRECIPITATION OF HIGHLY-CHARGED POLYELECTROLYTE SOLUTIONS IN THE PRESENCE OF MULTIVALENT SALTS
DELACRUZ, MO
BELLONI, L
DELSANTI, M
DALBIEZ, JP
SPALLA, O
DRIFFORD, M
[J]. JOURNAL OF CHEMICAL PHYSICS, 1995, 103 (13) : 5781 - 5791
[4] Chain structure in polyelectrolyte solutions at nonzero concentrations
Donley, JP
Rudnick, J
Liu, AJ
[J]. MACROMOLECULES, 1997, 30 (04) : 1188 - 1193
[5] STATISTICAL MECHANICS OF POLYMERS WITH EXCLUDED VOLUME
EDWARDS, SF
[J]. PROCEEDINGS OF THE PHYSICAL SOCIETY OF LONDON, 1965, 85 (546P): : 613 - &
[6] Counterion-induced attraction between rigid polyelectrolytes
GronbechJensen, N
Mashl, RJ
Bruinsma, RF
Gelbart, WM
[J]. PHYSICAL REVIEW LETTERS, 1997, 78 (12) : 2477 - 2480
[7] Ha BY, 1997, J PHYS II, V7, P887, DOI 10.1051/jp2:1997160
[8] Long-range electrostatic attraction between macroions mediated by oppositely charged counterions: Experimental supports, past and present
Ise, N
[J]. BERICHTE DER BUNSEN-GESELLSCHAFT-PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 1996, 100 (06): : 841 - 848
[9] MANNING GS, 1969, J CHEM PHYS, V51, P954
[10] ELECTROSTATICS OF MEMBRANE ADHESION
MARCELJA, S
[J]. BIOPHYSICAL JOURNAL, 1992, 61 (05) : 1117 - 1121

← 1 2 →