Application of in-channel micro chemical plant to the production of functional microcapsules

J. M. Cha, D. G. Won, E. H. Jeong, T. Arakawa, Shuichi Shoji, K. C. Kim, J. S. Boo, J. S. Go

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Abstract

    Polymeric microcapsules can be fabricated by using kernel process called "micro chemical plant system". The size of microcapsules is more uniform than those made in the conventional pathways. Spherical microcapsules are fabricated through the innovative conjunction of the well-defined amphiphilic block copolymer and stable microfluidic procedure. Crossed microchannel chemical plant are fabricated by using double deep reactive ion etch (DRIE) on 400 μm-thick silicon wafer. The width and depth of this are 100 μm, respectively. PS-b-PMMA copolymer is synthesized by atomic transfer radical polymerization (ATRP) and molecular weight and poly dispersity index (PDI) is 9837 g/mol and 1.08, respectively. With the introduction of two immiscible fluids into the microchannel, droplet flows are visualized by using a high speed CCD camera. The microcapsule was formed due to supramolecular self-assembly of copolymer in the droplet. The characteristics of the produced microcapsules were measured by SEM. A new microfilter was also introduced to separate microcapsule from the suspension fluid.

    Original languageEnglish
    Title of host publicationMicro and Nano Systems
    PublisherAmerican Society of Mechanical Engineers (ASME)
    Pages821-825
    Number of pages5
    Volume11
    ISBN (Print)079184305X
    DOIs
    Publication statusPublished - 2007
    EventASME 2007 International Mechanical Engineering Congress and Exposition, IMECE 2007 - Seattle, United States
    Duration: 2007 Nov 112007 Nov 15

    Other

    OtherASME 2007 International Mechanical Engineering Congress and Exposition, IMECE 2007
    CountryUnited States
    CitySeattle
    Period07/11/1107/11/15

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    ASJC Scopus subject areas

    • Mechanical Engineering

    Cite this

    Cha, J. M., Won, D. G., Jeong, E. H., Arakawa, T., Shoji, S., Kim, K. C., Boo, J. S., & Go, J. S. (2007). Application of in-channel micro chemical plant to the production of functional microcapsules. In Micro and Nano Systems (Vol. 11, pp. 821-825). American Society of Mechanical Engineers (ASME). https://doi.org/10.1115/IMECE200741795