A simple method to fabricate electrochemical sensor systems with predictable high-redox amplification

    Research output: Contribution to journalArticleAcademicpeer-review

    18 Citations (Scopus)

    Abstract

    In this paper an easy to fabricate SU8/glass-based microfluidic sensor is described with two closely spaced parallel electrodes for highly selective measurements using the redox cycling effect. By varying the length of the microfluidic entrance channel, a diffusion barrier is created for non-cycling species effectively increasing selectivity for redox cycling species. Using this sensor, a redox cycling amplification of similar to 6500x is measured using the ferrocyanide redox couple. Moreover, a simple, but accurate analytical expression is derived that predicts the amplification factor based on the sensor geometry.
    Original languageUndefined
    Pages (from-to)1548-1553
    Number of pages6
    JournalLab on a chip
    Volume12
    Issue number8
    DOIs
    Publication statusPublished - 2012

    Keywords

    • EWI-21916
    • METIS-286388
    • IR-80518

    Cite this

    @article{8e23db7bda9b49c0a0aa829fc9745c77,
    title = "A simple method to fabricate electrochemical sensor systems with predictable high-redox amplification",
    abstract = "In this paper an easy to fabricate SU8/glass-based microfluidic sensor is described with two closely spaced parallel electrodes for highly selective measurements using the redox cycling effect. By varying the length of the microfluidic entrance channel, a diffusion barrier is created for non-cycling species effectively increasing selectivity for redox cycling species. Using this sensor, a redox cycling amplification of similar to 6500x is measured using the ferrocyanide redox couple. Moreover, a simple, but accurate analytical expression is derived that predicts the amplification factor based on the sensor geometry.",
    keywords = "EWI-21916, METIS-286388, IR-80518",
    author = "M.G. Straver and Mathieu Odijk and Wouter Olthuis and {van den Berg}, Albert",
    note = "eemcs-eprint-21916",
    year = "2012",
    doi = "10.1039/c2lc21233a",
    language = "Undefined",
    volume = "12",
    pages = "1548--1553",
    journal = "Lab on a chip",
    issn = "1473-0197",
    publisher = "Royal Society of Chemistry",
    number = "8",

    }

    A simple method to fabricate electrochemical sensor systems with predictable high-redox amplification. / Straver, M.G.; Odijk, Mathieu; Olthuis, Wouter; van den Berg, Albert.

    In: Lab on a chip, Vol. 12, No. 8, 2012, p. 1548-1553.

    Research output: Contribution to journalArticleAcademicpeer-review

    TY - JOUR

    T1 - A simple method to fabricate electrochemical sensor systems with predictable high-redox amplification

    AU - Straver, M.G.

    AU - Odijk, Mathieu

    AU - Olthuis, Wouter

    AU - van den Berg, Albert

    N1 - eemcs-eprint-21916

    PY - 2012

    Y1 - 2012

    N2 - In this paper an easy to fabricate SU8/glass-based microfluidic sensor is described with two closely spaced parallel electrodes for highly selective measurements using the redox cycling effect. By varying the length of the microfluidic entrance channel, a diffusion barrier is created for non-cycling species effectively increasing selectivity for redox cycling species. Using this sensor, a redox cycling amplification of similar to 6500x is measured using the ferrocyanide redox couple. Moreover, a simple, but accurate analytical expression is derived that predicts the amplification factor based on the sensor geometry.

    AB - In this paper an easy to fabricate SU8/glass-based microfluidic sensor is described with two closely spaced parallel electrodes for highly selective measurements using the redox cycling effect. By varying the length of the microfluidic entrance channel, a diffusion barrier is created for non-cycling species effectively increasing selectivity for redox cycling species. Using this sensor, a redox cycling amplification of similar to 6500x is measured using the ferrocyanide redox couple. Moreover, a simple, but accurate analytical expression is derived that predicts the amplification factor based on the sensor geometry.

    KW - EWI-21916

    KW - METIS-286388

    KW - IR-80518

    U2 - 10.1039/c2lc21233a

    DO - 10.1039/c2lc21233a

    M3 - Article

    VL - 12

    SP - 1548

    EP - 1553

    JO - Lab on a chip

    JF - Lab on a chip

    SN - 1473-0197

    IS - 8

    ER -