论文标题
照片 - 双感染：朝着主动悬浮液中的光控制
Photo-bioconvection: towards light-control of flows in active suspensions
论文作者
论文摘要
微生物悬浮液中各个成分的持续运动代表了所谓的活动物质系统的一个主要例子。细胞消耗能量，发挥力和移动，总体上释放了被动元件平衡统计力学的约束，并允许复杂的时空模式出现。此外，当受到物理化学刺激的影响时，它们的集体行为通常会驱动大规模的流体动力学性质，对自然环境和初期工业应用的生物融合产生影响。反过来，我们对这些驾驶刺激的外部控制能力可以用来控制新兴模式。光线很容易操纵，同时也是对各种微生物的重要刺激，特别适合这一目的。在本文中，我们将讨论当前状态，发展和一些新兴的进步，而光诱导的生物对流的基础和应用，重点是最近的实验实现和建模工作。
The persistent motility of the individual constituents in microbial suspensions represents a prime example of so-called active matter systems. Cells consume energy, exert forces and move, overall releasing the constraints of equilibrium statistical mechanics of passive elements and allowing for complex spatio-temporal patterns to emerge. Moreover, when subject to physico-chemical stimuli their collective behaviour often drives large scale instabilities of hydrodynamic nature, with implications for biomixing in natural environments and incipient industrial applications. In turn, our ability for external control of these driving stimuli could be used to govern the emerging patterns. Light, being easily manipulable and, at the same time, an important stimulus for a wide variety of microorganisms, is particularly well suited to this end. In this paper, we will discuss the current state, developments, and some of the emerging advances in the fundamentals and applications of light-induced bioconvection with a focus on recent experimental realisations and modelling efforts.
