Intermediate colloidal formation and the varying width of periodic precipitation bands in reaction-diffusion systems
Intermediate colloidal formation and the varying width of periodic precipitation bands in reaction-diffusion systems
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DOI：
10.1016/j.jcis.2004.08.152
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发表时间：
2005-02-15
影响因子：
9.9
通讯作者：
Varghese, G
中科院分区：
文献类型：
--
作者：
George, J;Varghese, G
通过引入一个新的概念，从理论上研究了反应扩散系统中节律图案的形成机制。当扩散进入胶状介质时，分隔两个反应物种的边界实际上发生了迁移。基于这种边界迁移情景，可以证明关于李色冈模式的所有已建立的关系。以一种相当改装的方式。在图案化之前形成中间胶体混浊的想法和移动边界模型被证明在预测时空图案宽度的浓度依赖关系方面是有效的。实验观测结果支持所建立的宽度定律关系。(C)2004 Elsevier Inc.保留所有权利。
The mechanism of rhythmic pattern formation in reaction-diffusion systems is investigated theoretically by introducing a new concept. The boundary that separates the two reacting species virtually migrates as the diffusion proceeds into the gelatinous medium. Based on this boundary migration scenario, all the well-established relations on Liesegang patterns could be proved. in a rather modified way. The idea of formation of intermediate colloidal haze prior to patterning along with the moving boundary model proved to be efficient in predicting the concentration dependence of the width of the spatiotemporal patterns. The experimental observations support the width law relation developed. (C) 2004 Elsevier Inc. All rights reserved.