Cholesteric phase in virus suspensions
Cholesteric phase in virus suspensions
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DOI：
10.1021/la000446t
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发表时间：
2000-10-03
期刊：
影响因子：
3.9
通讯作者：
Fraden, S
中科院分区：
文献类型：
--
作者：
Dogic, Z;Fraden, S
我们报告测量的单分散悬浮液中的杆状病毒丝状噬菌体FD的螺旋俯仰和扭转弹性常数（K（22））。在几种离子强度和温度下，对整个电离区的浓度进行了测量。在高离子强度的极限下，由于P（0）与c（-1.66）成比例，因此沥青（P（0））与浓度（c）成比例。随着离子强度的降低，标度指数系统地变化到较低值。
We report measurements of the cholesteric pitch and twist elastic constant (K(22)) in monodisperse suspensions of the rodlike virus filamentous bacteriophage fd. Measurements were taken for concentrations spanning the entire cholesteric region at several ionic strengths and temperatures. In the limit of high ionic strength the cholesteric pitch (P(0)) scales with concentration (c) as P(0) proportional to c(-1.66). As the ionic strength decreases, the scaling exponent systematically changes to lower values.