主动化学力学孤立子
Active chemo-mechanical solitons
AI总结：
该研究提出了一种由纯化学信号引导的主动化学力学孤立波，展示了化学活性高效驱动机械信号的机制。
摘要：
在许多生物系统中，局部机械信息通过机械中性的化学信号传递。典型例子包括细胞尺度上的肌动蛋白-肌球蛋白皮层收缩波和组织尺度上的蠕动波。在这些系统中，化学活性通过分布式电机型机制转化为机械变形，这些机制由连续度自由度表示。为了阐明化学-机械耦合的内在原理，我们提出了最简单的例子，即在分布式机械系统中，由纯化学信号引导的局部孤立波的定向运动。我们的主要结果是机械信号可以通过化学活性以高度高效的方式驱动。
英文摘要：
In many biological systems localized mechanical information is transmitted by mechanically neutral chemical signals. Typical examples include contraction waves in acto-myosin cortex at cellular scale and peristaltic waves at tissue level. In such systems, chemical activity is transformed into mechanical deformation by distributed motor-type mechanisms represented by continuum degrees of freedom. To elucidate the underlying principles of chemo-mechanical coupling, we here present the simplest example, involving directional motion of a localized solitary wave in a distributed mechanical system, guided by a purely chemical cue. Our main result is that mechanical signals can be driven by chemical activity in a highly efficient manner.
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