STATIC LIGHT-SCATTERING BY AQUEOUS-SOLUTIONS OF RODLIKE FD-VIRUS PARTICLES

被引：31

作者：

HAGENBUCHLE, M

WEYERICH, B

DEGGELMANN, M

GRAF, C

KRAUSE, R

MAIER, EE

SCHULZ, SF

KLEIN, R

WEBER, R

机构：

[1] Fakultät für Physik, Universität Konstanz, D-7750 Konstanz

来源：

PHYSICA A | 1990年 / 169卷 / 01期

关键词：

D O I：

10.1016/0378-4371(90)90215-E

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Static light scattering measurements are reported on aqueous solutions of rodlike fd-virus (length L = 880 nm, molecular weight 16.4 × 106 g/mol) below and above the overlap concentration c* = 1 particle/length3. In solutions of very low ionic strength a liquidlike structure with a significant first intensity maximum of the elastically scattered light is observed due to the electrostatic interaction of the charged rods. The scattering vector of the first static structure factor maximum scales with concentration as c1/3 below c* and as c1/2 above. In comparison to results of spherical particle solutions the influence of particle anisotropy is evaluated. It is claimed that the c1/2-dependence is a general feature of solutions of rodlike particles above c*. The experimental results in the crossover region around c* are confirmed by Monte Carlo simulations, based on a model potential describing a screened Coulomb interaction between rods. © 1990.

引用

页码：29 / 41

页数：13

共 21 条

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