微乳液
图灵
扩散
反应扩散系统
不稳定性
同种类的
化学物理
层状结构
图案形成
物理
统计物理学
计算机科学
化学
机械
生物
热力学
结晶学
肺表面活性物质
遗传学
程序设计语言
作者
Tamás Bánsági,Vladimir K. Vanag,Irving R. Epstein
出处
期刊:Science
[American Association for the Advancement of Science (AAAS)]
日期:2011-03-11
卷期号:331 (6022): 1309-1312
被引量:137
标识
DOI:10.1126/science.1200815
摘要
Spatially periodic, temporally stationary patterns that emerge from instability of a homogeneous steady state were proposed by Alan Turing in 1952 as a mechanism for morphogenesis in living systems and have attracted increasing attention in biology, chemistry, and physics. Patterns found to date have been confined to one or two spatial dimensions. We used tomography to study the Belousov-Zhabotinsky reaction in a microemulsion in which the polar reactants are confined to aqueous nanodroplets much smaller than the scale of the stationary patterns. We demonstrate the existence of Turing patterns that can exist only in three dimensions, including curved surfaces, hexagonally packed cylinders, spots, and labyrinthine and lamellar patterns.
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