Autonomous oil flow generated by self-oscillating polymer gels
Autonomous oil flow generated by self-oscillating polymer gels
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DOI：
10.1038/s41598-020-69804-3
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发表时间：
2020-07-30
影响因子：
4.6
通讯作者：
Maeda, Shingo
中科院分区：
文献类型：
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作者：
Yoshimura, Kyosuke;Otsuka, Yuji;Maeda, Shingo
先前报道的凝胶和聚合物致动器需要外部输入，例如电池、电路、电子电路等，与生物体产生的自主运动相比。为了实现自发运动，在这里，我们建议将电源，致动器和控制集成到单组分自振荡水凝胶中。我们展示了自致动凝胶泵驱动的振荡Belousov-Zhabotinsky（BZ）反应，没有电子元件。我们发展了与BZ反应同步的凝胶体积振荡（BZ凝胶）。由于自致动凝胶泵由BZ凝胶的化学机械能驱动，因此自致动凝胶泵不需要复杂的布线设计、能量供应和组装。BZ凝胶产生的机械功非常小。我们制定了BZ凝胶的热力学循环和最大限度地提高机械功。我们发现，预拉伸的BZ凝胶显示出更大的机械功。我们将BZ凝胶和工作流体物理分离，以创建实用的泵。通过使用BZ凝胶产生的优化机械，我们展示了通过可拉伸弹性体膜传递机械功的自致动凝胶泵。
The previously reported gel and polymer actuators require external inputs, such as batteries, circuits, electronic circuits, etc., compared with autonomous motions produced by the living organisms. To realize the spontaneous motions, here, we propose to integrate a power supply, actuators, and control into a single-component self-oscillating hydrogel. We demonstrate self-actuating gel pumps driven by the oscillatory Belousov-Zhabotinsky (BZ) reaction without electronic components. We have developed the volume oscillation of gels synchronized with the BZ reaction (BZ gel). Since the self-actuating gel pumps are driven by chemo-mechanical energy from BZ gels, the self-actuating gel pumps don't require complex wiring designs, energy supply, and assembling. The mechanical work generated by BZ gels is extremely small. We formulated the thermodynamic cycle of BZ gels and maximized mechanical work. We found that pre-stretched BZ gel shows larger mechanical works. We physically separated the BZ gels and working fluid to create practical pumps. By using optimizing mechanical generated by BZ gels, we demonstrated the self-actuating gel pumps that transfer mechanical work through a stretchable elastomer membrane.