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首页> 外文期刊>Micro and Nano Systems Letters >Finger-triggered portable PDMS suction cup for equipment-free microfluidic pumping
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Finger-triggered portable PDMS suction cup for equipment-free microfluidic pumping

机译：手指触发式便携式PDMS吸盘，无需设备即可进行微流体泵送

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This study presents a finger-triggered portable polydimethylsiloxane suction cup that enables equipment-free microfluidic pumping. The key feature of this method is that its operation only involves a “pressing-and-releasing” action for the cup placed at the outlet of a microfluidic device, which transports the fluid at the inlet toward the outlet through a microchannel. This method is simple, but effective and powerful. The cup is portable and can easily be fabricated from a three-dimensional printed mold, used without any pre-treatment, reversibly bonded to microfluidic devices without leakage, and applied to various material-based microfluidic devices. The effect of the suction cup geometry and fabrication conditions on the pumping performance was investigated. Furthermore, we demonstrated the practical applications of the suction cup by conducting an equipment-free pumping of thermoplastic-based microfluidic devices and water-in-oil droplet generation.
机译：这项研究提出了一种手指触发的便携式聚二甲基硅氧烷吸盘，无需设备即可进行微流体泵送。该方法的关键特征在于，其操作仅涉及放置在微流体设备出口处的杯子的“压紧和释放”作用，该杯子通过微通道将入口处的流体传输到出口。此方法简单，但有效且强大。该杯子是便携式的，并且可以容易地由三维印刷模具制造，无需任何预处理即可使用，可逆地结合到微流体装置上而不会泄漏，并可以应用于各种基于材料的微流体装置。研究了吸盘几何形状和制造条件对抽吸性能的影响。此外，我们通过对基于热塑性塑料的微流控设备进行无设备泵送和油包水液滴生成，证明了吸盘的实际应用。

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