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Transient electric birefringence of wormlike macromolecules in electric fields of arbitrary strength: A computer simulation study
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10.1063/1.1863892
/content/aip/journal/jcp/122/12/10.1063/1.1863892
http://aip.metastore.ingenta.com/content/aip/journal/jcp/122/12/10.1063/1.1863892

Figures

Image of FIG. 1.
FIG. 1.

Relation between three different ways of characterizing flexibility (, , and ) for a wormlike model, a wormlike chain, and a broken-rod chain. Results obtained with . The plot for the wormlike model was obtained from Eq. (2). For wormlike and broken-rod chains the computational result obtained from Monte Carlo simulation are presented. For differences in the values of for wormlike and broken-rod chains see text. For illustrative purposes, the approximate correspondence between the number of base pairs of DNA with and is included.

Image of FIG. 2.
FIG. 2.

Evolution of when electric field has been removed. Induced dipole, . Legend: black circles, BRC with ; white circles, WLC with ; black triangles, BRC with ; white triangles, WLC with .

Image of FIG. 3.
FIG. 3.

Birefringence decay profiles for different degrees of flexibility. Permanent dipole, . Legend: black circles, BRC with ; white triangles, WLC with ; black triangles, BRC with ; white triangles, WLC with ; white squares, quasirigid model with .

Image of FIG. 4.
FIG. 4.

Birefringence decay profiles for different degrees of flexibility. Induced dipole, . Legend: black circles, BRC with ; white circles, WLC with ; black triangles, BRC with ; white triangles, WLC with ; white squares, quasirigid model with .

Tables

Generic image for table
Table I.

(a) Fitting results of the decay profiles of birefringence and deformation obtained with Brownian dynamics simulation with electric field for models with the same . Models with elements. Equilibrium conformation. Straight . Simulations performed without hydrodynamic interaction. Permanent dipole orienting mechanism. For references and procedures to obtain these data, see text. (b) As (a), but for induced dipole orienting mechanism. Values obtained for rigid models with the same are also included. These results are obtained with the RBT and they do not depend on the type of orienting mechanism.

Generic image for table
Table II.

Fitting results of the decay profiles of birefringence and deformation obtained with Brownian dynamics simulation with electric field for models with slightly different values of the average radius of gyration. For BRC, . for WLC, . Models with elements. Equilibrium conformation: straight . Simulations performed without hydrodynamic interaction. Permanent dipole orienting mechanism. For references and procedures to obtain these data, see text. (b) As (a), but for induced dipole mechanism. Values obtained for rigid models with the same are also included. These results are obtained with the RBT and they do not depend on the type of orienting mechanism.

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/content/aip/journal/jcp/122/12/10.1063/1.1863892
2005-03-25
2014-04-23
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Transient electric birefringence of wormlike macromolecules in electric fields of arbitrary strength: A computer simulation study
http://aip.metastore.ingenta.com/content/aip/journal/jcp/122/12/10.1063/1.1863892
10.1063/1.1863892
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