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  • Electrohydrodynamic Removal of Non-Specific Colloidal Adsorption at Electrode Interfaces

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    ShiddikyPUB1557.pdf (1.179Mb)
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    Accepted Manuscript (AM)
    Author(s)
    Rauf, Sakandar
    Shiddiky, Muhammad JA
    Trau, Matt
    Griffith University Author(s)
    Shiddiky, Muhammad J.
    Year published
    2014
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    Abstract
    This communication reports the use of an electrohydrodynamic surface shear force to selectively manipulate colloid–surface interactions. We demonstrate the selection of strongly (specifically) bound biomolecule-functionalized colloidal beads over more weakly (non-specifically) bound beads using a tuneable alternating current electrohydrodynamic (ac-EHD) force, which drives lateral fluid motion within a few nanometers of an electrode surface. By externally “tuning” the strength of the ac-EHD force, we demonstrate a significant enhancement of capture efficiency for specifically bound colloids, along with a removal of the ...
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    This communication reports the use of an electrohydrodynamic surface shear force to selectively manipulate colloid–surface interactions. We demonstrate the selection of strongly (specifically) bound biomolecule-functionalized colloidal beads over more weakly (non-specifically) bound beads using a tuneable alternating current electrohydrodynamic (ac-EHD) force, which drives lateral fluid motion within a few nanometers of an electrode surface. By externally “tuning” the strength of the ac-EHD force, we demonstrate a significant enhancement of capture efficiency for specifically bound colloids, along with a removal of the adsorption of non-specific colloidal beads – a process which may be observed in real-time.
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    Journal Title
    Chemical Communications
    Volume
    50
    Issue
    37
    DOI
    https://doi.org/10.1039/c4cc01357c
    Copyright Statement
    © 2014 Royal Society of Chemistry. This is the author-manuscript version of this paper. Reproduced in accordance with the copyright policy of the publisher. Please refer to the journal website for access to the definitive, published version.
    Subject
    Chemical sciences
    Analytical chemistry not elsewhere classified
    Publication URI
    http://hdl.handle.net/10072/172438
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    • Journal articles

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