Self-Powered Gallium-Based Liquid-Metal Beating Heart
Self-Powered Gallium-Based Liquid-Metal Beating Heart
复制标题
自供电镓基液态金属跳动心脏
DOI：
10.1021/acs.jpca.9b05743
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发表时间：
2019-10-31
影响因子：
2.9
通讯作者：
Liu, Jing
中科院分区：
文献类型：
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作者：
Yi, Liting;Wang, Qian;Liu, Jing
水银心脏跳动是一个众所周知的现象，它由一个覆盖着酸水溶液的水银滴和一个铁钉组成。然而，汞是剧毒的，它的蒸气特别危险。因此，有关汞的研究和应用往往受到阻碍。在这里，我们提出了另一种跳动的心脏，但采用了不同的材料，即，低毒性的镓铟合金。使用不锈钢丝接触碱性溶液中的液态金属液滴的侧面。基于该方法，周期振荡可以保持连续和稳定。这一发现表明了一种更可行和更安全的方式来实现跳动行为，这将为未来的各种应用提供启示，例如微型设备的泵和混合器。
Mercury beating heart is a well-known phenomenon that consists of a mercury droplet covered with aqueous acid and an iron nail. However, mercury is highly poisonous, and its vapor is especially dangerous. Thus, related studies and applications on mercury have often been hindered. Here, we proposed another beating heart but employed a different material, i.e., GaIn alloy with low toxicity. A stainless steel wire was utilized to touch the side of the liquid-metal droplet in basic solution. Based on this method, periodic oscillation could be kept continuous and steady. This finding suggests a more feasible and safer way to realize beating behaviors, which would shed light on a variety of future applications, such as pump and mixer for the mini device.