Spontaneous fast motion of water droplet on nanotextured and curved glass surfaces

Y. C. Chuang, H. Y. Hsieh, Quanshui Zheng, Y. C. Lin, F. G. Tseng

研究成果: Conference contribution

摘要

This paper reports the study on spontaneous and fast motion for a microliter water droplet on nanotextured glass capillary surfaces with a wide range of curvature gradients. The surface is highly related to the surface tension gradient that is mainly formed by three distinct driving forces, including surface hydrophilicity gradents, chemically patterned nanotexture, and curvature gradient capillaries. In the experiments, the droplet velocity shows a dependency to the droplet position on the conical capillary curvature surface and moves toward the more wettable part of the gradient. The speed of the droplet on the oxygen plasma treated nanotextured glass capillary is up to 238.5 mm/s with more than two times of that, 101.7 mm/s, on the untreated surface. Therefore, we can conclude that a gradual variation of wettability property governs the droplet motion.

原文English
主出版物標題15th International Conference on Miniaturized Systems for Chemistry and Life Sciences 2011, MicroTAS 2011
頁面1843-1845
頁數3
出版狀態Published - 2011 十二月 1
事件15th International Conference on Miniaturized Systems for Chemistry and Life Sciences 2011, MicroTAS 2011 - Seattle, WA, United States
持續時間: 2011 十月 22011 十月 6

出版系列

名字15th International Conference on Miniaturized Systems for Chemistry and Life Sciences 2011, MicroTAS 2011
3

Other

Other15th International Conference on Miniaturized Systems for Chemistry and Life Sciences 2011, MicroTAS 2011
國家United States
城市Seattle, WA
期間11-10-0211-10-06

All Science Journal Classification (ASJC) codes

  • Control and Systems Engineering

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