A new method of UV-patternable hydrophobization of micro- and nanofluidic networks


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Arayanarakool, R. and Shui, L. and Berg, A. van den and Eijkel, J.C.T. (2011) A new method of UV-patternable hydrophobization of micro- and nanofluidic networks. In: 15th International Conference on Miniaturized Systems for Chemistry and Life Sciences, μTAS 2011, 2-6 October 2011, Seattle, Washington (pp. pp. 317-373).

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Abstract:This work reports a new method to hydrophobize glass-based micro- and nanofluidic networks. Conventional methods of hydrophobizing glass surfaces often create particulate debris causing clogging, especially in shallow nanochannels, or require skillful handling. Our novel method employs an oxygen plasma, silicone oil and ultraviolet (UV) light. The contact angle of the modified bare glass surface can reach 100° whilst the inner channels after treatment facilitate stable and durable water-inoil droplet generation. This modified surface was found to be stable for more than three weeks. The use of UV in principle enables in-channel hydrophobic patterning.
Item Type:Conference or Workshop Item
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Electrical Engineering, Mathematics and Computer Science (EEMCS)
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Link to this item:http://purl.utwente.nl/publications/78656
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