Semiflexible polymer in a uniform force field in two dimensions

被引:28
作者
Lamura, A
Burkhardt, TW
Gompper, G
机构
[1] Forschungszentrum Julich, Inst Festkorperforsch, D-52425 Julich, Germany
[2] Univ Bari, Dipartmento Fis, I-70126 Bari, Italy
[3] Univ Bari, Ist Nazl Fis Mat, I-70126 Bari, Italy
[4] Ist Nazl Fis Nucl, Sez Bari, I-70126 Bari, Italy
[5] Temple Univ, Dept Phys, Philadelphia, PA 19122 USA
来源
PHYSICAL REVIEW E | 2001年 / 64卷 / 06期
关键词
D O I
10.1103/PhysRevE.64.061801
中图分类号
O35 [流体力学]; O53 [等离子体物理学];
学科分类号
070204 ; 080103 ; 080704 ;
摘要
The conformational properties of a semiflexible polymer chain, anchored at one end in a uniform force field, are studied in a simple two-dimensional model. Recursion relations are derived for the partition function and then iterated numerically. We calculate the angular fluctuations of the polymer about the direction of the force field and the average polymer configuration as functions of the bending rigidity, chain length, chain orientation at the anchoring point. and field strength.
引用
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页数:8
相关论文
共 30 条
[1]  
Abramowitz M., 1970, HDB MATH FUNCTIONS
[2]   UNWINDING OF POLYMER-CHAINS UNDER FORCES OR FLOWS [J].
BROCHARDWYART, F ;
HERVET, H ;
PINCUS, P .
EUROPHYSICS LETTERS, 1994, 26 (07) :511-516
[3]   POLYMER-CHAINS UNDER STRONG FLOWS - STEMS AND FLOWERS [J].
BROCHARDWYART, F .
EUROPHYSICS LETTERS, 1995, 30 (07) :387-392
[4]   ENTROPIC ELASTICITY OF LAMBDA-PHAGE DNA [J].
BUSTAMANTE, C ;
MARKO, JF ;
SIGGIA, ED ;
SMITH, S .
SCIENCE, 1994, 265 (5178) :1599-1600
[5]   Single-molecule studies of DNA mechanics [J].
Bustamante, C ;
Smith, SB ;
Liphardt, J ;
Smith, D .
CURRENT OPINION IN STRUCTURAL BIOLOGY, 2000, 10 (03) :279-285
[6]  
Cifre JGH, 1999, J RHEOL, V43, P339, DOI 10.1122/1.550987
[7]   DNA: An extensible molecule [J].
Cluzel, P ;
Lebrun, A ;
Heller, C ;
Lavery, R ;
Viovy, JL ;
Chatenay, D ;
Caron, F .
SCIENCE, 1996, 271 (5250) :792-794
[8]  
de Gennes P.G., 1979, SCALING CONCEPTS POL
[9]   COIL-STRETCH TRANSITION OF DILUTE FLEXIBLE POLYMERS UNDER ULTRAHIGH VELOCITY-GRADIENTS [J].
DEGENNES, PG .
JOURNAL OF CHEMICAL PHYSICS, 1974, 60 (12) :5030-5042
[10]  
Doi M., 1986, The Theory of Polymer Dynamics