Synchronized oscillations in swarms of nematode Turbatrix aceti
Synchronized oscillations in swarms of nematode Turbatrix aceti
复制标题
醋酸涡轮线虫群的同步振荡
DOI：
10.1039/d1sm01572a
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发表时间：
2022
期刊：
影响因子：
3.4
通讯作者：
Quillen, Alice C.
中科院分区：
文献类型：
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作者：
Peshkov, Anton;McGaffigan, Sonia;Quillen, Alice C.
最近，人们对活跃粒子的行为产生了浓厚的兴趣，这些活跃粒子可以同时调整它们的运动方向并同步它们的振荡，称为群集者。虽然这类系统的理论和数值模型现在很多，但到目前为止还没有实际的例子。我们提出了一个实验研究的集体运动的浑浊线虫，自我推进的身体波动。我们发现这些线虫可以同步它们的身体振荡，形成惊人的行进的异向波，产生强烈的流体流动。我们发现，这种集体状态的位置和强度可以通过限制结构的形状来控制；在我们的例子中，液滴的接触角。这为生产受控工作开辟了一条道路，例如按需流或对象的位移。我们通过显示由这种状态产生的力足以通过抵消表面张力来改变液滴蒸发的物理特性来说明这一点，表面张力使我们能够估计其强度。乙酰Turbatrix相对较大的体积和易于培养，使其成为一种有希望的模式生物，用于实验研究能够产生可控功的蜂群和振荡活性物质。
There is a recent surge of interest in the behavior of active particles that can at the same time align their direction of movement and synchronize their oscillations, known as swarmalators. While theoretical and numerical models of such systems are now abundant, no real-life examples have been shown to date. We present an experimental investigation of the collective motion of the nematode Turbatrix aceti that self-propel by body undulation. We discover that these nematodes can synchronize their body oscillations, forming striking traveling metachronal waves, which produces strong fluid flows. We uncover that the location and strength of this collective state can be controlled through the shape of the confining structure; in our case the contact angle of a droplet. This opens a way for producing controlled work such as on-demand flows or displacement of objects. We illustrate this by showing that the force generated by this state is sufficient to change the physics of evaporation of fluid droplets, by counteracting the surface-tension force, which allow us to estimate its strength. The relatively large size and ease of culture make Turbatrix aceti a promising model organism for experimental investigation of swarming and oscillating active matter capable of producing controllable work.
DOI：
--
发表时间：
2006
期刊：
--
影响因子：
--
作者：
Iroon Polytechniou-
通讯作者：
Iroon Polytechniou-