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. Author manuscript; available in PMC: 2016 Aug 15.
Published in final edited form as: Anal Chem. 2012 Dec 6;84(24):10793–10801. doi: 10.1021/ac302857z

Figure 1.

Figure 1

Bead-based multiplexed assay. Each element of an array in the capture region is immobilized with a different protein each targeting a specific protein that is coated on the micrometer-sized beads. Unbound beads are washed out of the channel. Specifically bound beads on each element of the array are eluted one-by-one from the array and are quantified downstream as they pass through. Here, applying voltage V1 turns nDEP on, resulting in elution of specifically bound beads from the surface of the 1st set of interdigitated electrodes.