Development of model colloidal liquid crystals and the kinetics of the isotropic-smectic transition

被引:150
作者
Dogic, Z [1 ]
Fraden, S [1 ]
机构
[1] Brandeis Univ, Martin Fisher Sch Phys, Complex Fluid Grp, Waltham, MA 02454 USA
来源
PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES | 2001年 / 359卷 / 1782期
关键词
depletion interaction; hard-rod fluids; virus; filamentous phage;
D O I
10.1098/rsta.2000.0814
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
We have prepared a homologous series of filamentous viruses with varying contour length using molecular closing techniques. These viruses are monodisperse enough to form a stable smectic phase. Two systems are studied. The first system consists of viruses to the surfaces of which the polymers are covalently bound. Through studies of the isotropic-cholesteric phase transition we demonstrate that covalently attached polymers alter the effective diameter of the virus. Additionally, we have produced mixtures of viruses whose ratio of effective diameters varies by a factor of five. The second system is composed of mixtures of rod-like viruses and non-absorbing Gaussian polymers. With this system we study the kinetics of the isotropic-smectic phase transition and describe observations of a number of novel metastable structures of unexpected complexity.
引用
收藏
页码:997 / 1014
页数:18
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