Micromachines 2011, 2(4), 369-384; doi:10.3390/mi2040369

Nonlinear Dual-Phase Multiplexing in Digital Microfluidic Architectures

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Received: 17 August 2011; in revised form: 20 September 2011 / Accepted: 20 September 2011 / Published: 28 September 2011
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract: A 16 × 16 digital microfluidic multiplexer is demonstrated. The device makes use of dual-phase AC activation in a bi-layered electrode structure for actuating microdrops independently. A switching arrangement is employed to localize two out-of-phase AC waveforms in one overlapped region of the two-dimensional multiplexer grid. The superimposed AC waveforms overcome the threshold voltage for motion of a local microdrop. The demonstrated dual-phase activation and nonlinear threshold-based motion overcomes the previously-reported microdrop interference effect, as it successfully actuates individual microdrops in systems with multiple neighbouring microdrops. The device is demonstrated with an integrated centre-tap transformer using a 10.0 Vrms input voltage and minimal power consumption.
Keywords: digital microfluidic; cross-referencing; bi-polar voltage; threshold voltage
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MDPI and ACS Style

Collier, C.M.; Wiltshire, M.; Nichols, J.; Born, B.; Landry, E.L.; Holzman, J.F. Nonlinear Dual-Phase Multiplexing in Digital Microfluidic Architectures. Micromachines 2011, 2, 369-384.

AMA Style

Collier CM, Wiltshire M, Nichols J, Born B, Landry EL, Holzman JF. Nonlinear Dual-Phase Multiplexing in Digital Microfluidic Architectures. Micromachines. 2011; 2(4):369-384.

Chicago/Turabian Style

Collier, Christopher M.; Wiltshire, Michael; Nichols, Jacqueline; Born, Brandon; Landry, Emily L.; Holzman, Jonathan F. 2011. "Nonlinear Dual-Phase Multiplexing in Digital Microfluidic Architectures." Micromachines 2, no. 4: 369-384.

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