Birefringence due to free electrophoresis

被引：9

作者：

Bertolotto, J ^{[1
]}

Roston, G ^{[1
]}

Ascheri, M ^{[1
]}

Campo, M ^{[1
]}

机构：

[1] Univ Nacl La Pampa, Dept Fis, RA-6300 Santa Rosa, La Pampa, Argentina

来源：

PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS | 2003年 / 327卷 / 1-2期

关键词：

electric birefringence; electrophoresis; DNA;

D O I：

10.1016/S0378-4371(03)00474-6

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We calculate the steady-state birefringence and dichroism for the case of a rigid bent rod molecule due to the free electrophoresis. In order to find the orientational distribution function, we use the Fokker-Planck equation and solve it by the perturbation method (for the steady state) at low electric field. We find that, using convenient parameters to characterize the DNA solution, both, the calculated electric birefringence and the dichroism, for low electric fields, have positive values in concordance with the experimental results. (C) 2003 Elsevier B.V. All rights reserved.

引用

页码：185 / 189

页数：5

共 8 条

[1] Dependence of DNA steady-state electric birefringence on field strength [J].

Bertolotto, JA ;

Campo, MG ;

Roston, GB ;

Ascheri, ME .

COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS, 2002, 203 (1-3) :167-183

[2] COUPLING BETWEEN TRANSLATIONAL AND ROTATIONAL BROWNIAN MOTIONS OF RIGID PARTICLES OF ARBITRARY SHAPE .2. GENERAL THEORY [J].

BRENNER, H .

JOURNAL OF COLLOID AND INTERFACE SCIENCE, 1967, 23 (03) :407-+

[3] HYDRODYNAMIC PROPERTIES OF COMPLEX, RIGID, BIOLOGICAL MACROMOLECULES - THEORY AND APPLICATIONS [J].

DELATORRE, JG ;

BLOOMFIELD, VA .

QUARTERLY REVIEWS OF BIOPHYSICS, 1981, 14 (01) :81-139

[4] ELECTRICAL BIREFRINGENCE AT HIGH FIELDS [J].

HOLCOMB, DN ;

TINOCO, I .

JOURNAL OF PHYSICAL CHEMISTRY, 1963, 67 (12) :2691-&

[5] ELECTRIC PROPERTIES OF MACROMOLECULES .4. DETERMINATION OF ELECTRIC AND OPTICAL PARAMETERS FROM SATURATION OF ELECTRIC BIREFRINGENCE IN SOLUTIONS [J].

OKONSKI, CT ;

YOSHIOKA, K ;

ORTTUNG, WH .

JOURNAL OF PHYSICAL CHEMISTRY, 1959, 63 (10) :1558-1565

[6]

Pathria R. K., 2011, STAT MECH

[7] DNA DOUBLE HELICES WITH POSITIVE ELECTRIC DICHROISM AND PERMANENT DIPOLE-MOMENTS - NONSYMMETRICAL CHARGE-DISTRIBUTIONS AND FROZEN CONFIGURATIONS [J].

PORSCHKE, D .

BIOPHYSICAL CHEMISTRY, 1994, 49 (02) :127-139

[8] FIELD-STRENGTH DEPENDENCE OF THE ELECTRIC BIREFRINGENCE OF RIGID AND NONRIGID MOLECULES [J].

YOSHIOKA, K .

JOURNAL OF CHEMICAL PHYSICS, 1987, 86 (01) :491-496

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