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    Please use this identifier to cite or link to this item: https://tkuir.lib.tku.edu.tw/dspace/handle/987654321/60548

    Title: Fabrication and testing of surface ratchets primed with hydrophobic parylene and hexamethyldisilazane for transporting droplets
    Authors: Chung, Yung-Chiang;Hess, Guo-Yuan;Yeh, Fu-Wen;Han, Hsieh-Cheng;Chen, Chien-Yuan;Lee, Ching-Jiun;Sheen, Horn-Jiunn;Yang, Lung-Jieh
    Contributors: 淡江大學機械與機電工程學系
    Keywords: plasma;parylene;hydrophobic;hydrophilic;surface ratchets
    Date: 2010-02
    Issue Date: 2013-03-12 11:24:17 (UTC+8)
    Publisher: Bellingham: SPIE - International Society for Optical Engineering
    Abstract: We demonstrate a way to transport droplets by an arrowed micropillar array surface with hydrophobic parylene. The lightly hydrophilic parylene surface could be changed to hydrophobic one by treating with fluorine-based plasma (CF4 or SF6). The droplet on this hydrophobic parylene surface with arrowed ratchets could be transported by a speaker, and the average measured velocity was 29mm∕s. Moreover, the authors compared driving performance of the parylene surface ratchets with the ones modified by the hexamethyldisilazane (HMDS) vapor. Both the results of using hydrophobic parylene and HMDS were better than the previous work.
    Relation: Journal of Micro/Nanolithography, MEMS, and MOEMS 9(1), 013035(9pages)
    DOI: 10.1117/1.3280261
    Appears in Collections:[Graduate Institute & Department of Mechanical and Electro-Mechanical Engineering] Journal Article

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