MOBILITY OF A REPTATING POLYMER

被引：90

作者：

DUKE, TAJ ^{[1
]}

SEMENOV, AN ^{[1
]}

VIOVY, JL ^{[1
]}

机构：

[1] MV LOMONOSOV STATE UNIV, DEPT PHYS, MOSCOW 117234, USSR

来源：

PHYSICAL REVIEW LETTERS | 1992年 / 69卷 / 22期

关键词：

D O I：

10.1103/PhysRevLett.69.3260

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The reptation model for the dynamics of an entangled polymer is considered for the case where the diffusion is driven by a weak field. If the distance between entanglements is greater than the persistence length, the mobility of long chains is predicted to be independent of their size and proportional to the field strength. This difference from previous predictions is due to the fact that fluctuations alter the field dependence of the tube orientation. Implications for the separation of DNA using gel electrophoresis are discussed.

引用

页码：3260 / 3263

页数：4

共 17 条

[1] DIFFUSION OF LABELED PARTICLES ON ONE-DIMENSIONAL CHAINS [J].

ALEXANDER, S ;

PINCUS, P .

PHYSICAL REVIEW B, 1978, 18 (04) :2011-2012

[2] REPTATION OF A POLYMER CHAIN IN PRESENCE OF FIXED OBSTACLES [J].

DEGENNES, PG .

JOURNAL OF CHEMICAL PHYSICS, 1971, 55 (02) :572-+

[3] DYNAMICS OF PULSED-FIELD ELECTROPHORESIS [J].

DEUTSCH, JM .

PHYSICAL REVIEW LETTERS, 1987, 59 (11) :1255-1258

[4] THEORETICAL-STUDIES OF DNA DURING GEL-ELECTROPHORESIS [J].

DEUTSCH, JM .

SCIENCE, 1988, 240 (4854) :922-924

[5]

DOI M, 1988, PHYS REV LETT, V61, P1893, DOI 10.1103/PhysRevLett.61.1893

[6]

Doi M., 1986, THEORY POLYM DYNAMIC

[7] SIMULATION OF MEGABASE DNA GEL ELECTROPHORESIS UNDERGOING [J].

DUKE, TAJ ;

VIOVY, JL .

PHYSICAL REVIEW LETTERS, 1992, 68 (04) :542-545

[8] RANDOM-WALK ON A RANDOM-WALK [J].

KEHR, KW ;

KUTNER, R .

PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS, 1982, 110 (03) :535-549

[9] WHY DOES THE ELECTROPHORETIC MOBILITY OF DNA IN GELS VARY WITH THE LENGTH OF THE MOLECULE [J].

LERMAN, LS ;

FRISCH, HL .

BIOPOLYMERS, 1982, 21 (05) :995-997

[10] MOBILITY OF DNA IN GEL-ELECTROPHORESIS [J].

LUMPKIN, OJ ;

ZIMM, BH .

BIOPOLYMERS, 1982, 21 (11) :2315-2316

← 1 2 →