PDF(Pubmed)
Abstract：
While there are many droplet manipulation techniques, all of them suffer from at least one of the following drawbacks - complex fabrication or complex equipment or liquid loss. In this work, a simple and portable technique is demonstrated that enables on-demand, contact-less and loss-less manipulation of liquid droplets through a combination of contact electrification and slipperiness. In conjunction with numerical simulations, a quantitative analysis is presented to explain the onset of droplet motion. Utilizing the contact electrification technique, contact-less and loss-less manipulation of polar and non-polar liquid droplets on different surface chemistries and geometries is demonstrated. It is envisioned that the technique can pave the way to simple, inexpensive, and portable lab on a chip and point of care devices.
摘要：
虽然有许多液滴操纵技术，它们都具有以下缺点中的至少一个-复杂的制造或复杂的设备或液体损失。在这项工作中,证明了一种简单便携的技术，可以按需，通过接触起电和滑爽的组合对液滴进行无接触和无损失的操纵。结合数值模拟，提出了定量分析来解释液滴运动的开始。利用接触电气化技术，证明了极性和非极性液滴在不同表面化学和几何形状上的无接触和无损失操纵。可以预见，该技术可以为简单，便宜,和便携式实验室上的芯片和护理设备。
