Inkjet Printed Polyelectrolyte Patterns for Analyte Separation on Microfluidic Paper-based Analytical Devices

Risto Koivunen, Eveliina Jutila, Roger Bollström, Patrick Gane

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

    Abstract

    Paper-based microfluidic devices can provide practical analytics platforms for applications such as point-of-care medical diagnostics. However, immobilisation or separation of analytes on such devices has received limited
    attention so far. This study introduces inkjet printed polyelectrolyte patterns as possible platforms for immobilisation of cationic and anionic compounds through surface charge interaction. Both anionic (sodium polyacrylate) and cationic (polydiallyldimethylammonium chloride) polyelectrolytes were inkjet printed on a custom designed pigment coating, having fine particle internal pore structure to ensure close proximity between the analytical sample and modified pore walls. Printed polyelectrolyte patterns were themselves poorly
    visible both under ordinary and UV light. In a proof of principle test, a controllable degree of separation of anionic dyes from aqueous solution passing through a printed cationic polyelectrolyte region could be observed.
    Original languageEnglish
    Title of host publicationAdvances in Printing and Media Technology
    Subtitle of host publicationToronto (2016)
    Pages143-150
    Number of pages8
    Volume43
    Publication statusPublished - 24 Aug 2016
    MoE publication typeA4 Article in a conference publication
    EventInternational Research Conference of Advances in Printing and Media Technology - Toronto, Canada
    Duration: 24 Aug 201627 Aug 2016
    Conference number: 43

    Publication series

    NameAdvances in Printing and Media Technology
    ISSN (Electronic)2409-4021

    Conference

    ConferenceInternational Research Conference of Advances in Printing and Media Technology
    Abbreviated titleIARIGAI
    Country/TerritoryCanada
    CityToronto
    Period24/08/201627/08/2016

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