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

R. Arayanarakool, L. Shui, A. Van Den Berg, J. C T Eijkel

    Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

    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-in-oil 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.

    Original languageEnglish
    Title of host publication15th International Conference on Miniaturized Systems for Chemistry and Life Sciences 2011, MicroTAS 2011
    Pages371-373
    Number of pages3
    Volume1
    Publication statusPublished - 1 Dec 2011
    Event15th International Conference on Miniaturized Systems for Chemistry and Life Sciences, µTAS 2011 - Seattle, United States
    Duration: 2 Oct 20116 Oct 2011
    Conference number: 15
    https://microtasconferences.org/microtas2011/

    Conference

    Conference15th International Conference on Miniaturized Systems for Chemistry and Life Sciences, µTAS 2011
    Abbreviated titleMicroTAS
    CountryUnited States
    CitySeattle
    Period2/10/116/10/11
    Internet address

    Keywords

    • Hydrophobization
    • Microfluidics
    • Nanofluidics
    • Oxygen Plasma
    • Silicone Oil
    • Surface Modification
    • UV light

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