TY - GEN
T1 - Spontaneous fast motion of water droplet on nanotextured and curved glass surfaces
AU - Chuang, Y. C.
AU - Hsieh, H. Y.
AU - Zheng, Quanshui
AU - Lin, Y. C.
AU - Tseng, F. G.
PY - 2011
Y1 - 2011
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=84883789867&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84883789867&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:84883789867
SN - 9781618395955
T3 - 15th International Conference on Miniaturized Systems for Chemistry and Life Sciences 2011, MicroTAS 2011
SP - 1843
EP - 1845
BT - 15th International Conference on Miniaturized Systems for Chemistry and Life Sciences 2011, MicroTAS 2011
T2 - 15th International Conference on Miniaturized Systems for Chemistry and Life Sciences 2011, MicroTAS 2011
Y2 - 2 October 2011 through 6 October 2011
ER -