Small Scale Propulsion: How Systematic Studies of Low Reynolds Number Physics Can Bring Micro/Nanomachines to New Horizons

Paul Wrede, M. Medina‐Sánchez, Vladimir M. Fomin
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Abstract

Micromachines are small-scale human-made machines with remarkable potential for medical treatments, microrobotics and environmental remediation applications. However, meaningful real-world applications are missing. This is mainly caused by their small size leading to unintuitive physics of motion. Motivated by the aim of understanding the fundamental physics at the micrometer scale and thereby overcoming resulting challenges, we discuss the importance of robust models supported by experimental data. Our previously performed study on the switching in propulsion mechanisms for conical tubular catalytic micromotors will be summarized and serve as an example for discussion. We emphasize on the need for systematic experimental studies to enable the design of highly application-oriented micromachines, which can be translated into real-world scenarios.
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小规模推进:低雷诺数物理的系统研究如何将微/纳米机器带入新视野
微型机器是一种小型的人造机器,在医疗、微型机器人和环境修复应用方面具有巨大的潜力。然而,有意义的实际应用却缺失了。这主要是由于它们的小尺寸导致不直观的运动物理。为了在微米尺度上理解基础物理,从而克服由此带来的挑战,我们讨论了由实验数据支持的稳健模型的重要性。本文将总结前人在锥形管状催化微马达推进机构切换方面的研究成果,并以此为例进行讨论。我们强调需要进行系统的实验研究,以实现高度应用导向的微机器的设计,这些微机器可以转化为现实世界的场景。
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