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Nonlinear Dual-Phase Multiplexing in Digital Microfluidic Architectures Collier, Christopher Michael; Wiltshire, Michael; Nichols, Jacqueline; Born, Brandon; Landry, Emily L.; Holzman, Jonathan F.

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.

Item Metadata

Title
Nonlinear Dual-Phase Multiplexing in Digital Microfluidic Architectures
Creator
Collier, Christopher Michael; Wiltshire, Michael; Nichols, Jacqueline; Born, Brandon; Landry, Emily L.; Holzman, Jonathan F.
Publisher
Multidisciplinary Digital Publishing Institute
Date Issued
2011-09-28
Description
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.
Subject
Digital microfluidic; Cross-referencing; Bi-polar voltage; Threshold voltage
Genre
Article
Type
Text
Language
eng
Date Available
2019-04-04
Provider
Vancouver : University of British Columbia Library
Rights
CC BY 3.0
DOI
10.14288/1.0377813
URI
http://hdl.handle.net/2429/69462
Affiliation
Engineering, School of (Okanagan)
Citation
Micromachines 2 (4): 369-384 (2011)
Publisher DOI
10.3390/mi2040369
Peer Review Status
Reviewed
Scholarly Level
Faculty
Rights URI
https://creativecommons.org/licenses/by-nc-sa/3.0/
Aggregated Source Repository
DSpace

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CC BY 3.0