Grand-canonical Monte-Carlo simulation of DNA condensation in equilibrium with a salt mixture containing 2:2 salt

被引：0
|
作者：
Duc, Nguyen V. [2 ]
Nguyen, Toan T. [1 ,2 ,3 ]
机构：
[1] Vietnam Natl Univ, VNU Key Lab Multiscale Simulat Complex Syst, 334 Nguyen Trai St, Hanoi, Vietnam
[2] Vietnam Natl Univ, VNU Univ Sci, Fac Phys, 334 Nguyen Trai St, Hanoi, Vietnam
[3] Georgia Inst Technol, Sch Phys, 837 State St, Atlanta, GA 30332 USA
来源：
41ST VIETNAM NATIONAL CONFERENCE ON THEORETICAL PHYSICS | 2017年 / 865卷
基金：
美国国家科学基金会;
关键词：
OSMOTIC-PRESSURE; DOUBLE HELICES; EJECTION; FORCES; PHAGE; INVERSION; CHARGE;
D O I：
10.1088/1742-6596/865/1/012010
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The Grand canonical Monte Carlo simulation method is used to simulate DNA hexagonal condensate in the presence of a mixture of 1: 1, 2: 1, 2: 2 salts using the primitive ion model. Previous results show that DNA can be condensed by divalent counterions in restricted environment, such as inside viruses. In this work, we study the effects of divalent co-ions on condensation of DNA by divalent counterions. It is shown that divalent co-ions lead to weaker DNA condensation free energy and DNA de condensation at smaller counterions concentration.
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页数：6
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