Unconventional droplets manipulations on superhydrophobic-patterned surface microfluidics

S. Xing; R. S. Harake; Tingrui Pan

Unconventional droplets manipulations on superhydrophobic-patterned surface microfluidics

S. Xing, R. S. Harake, Tingrui Pan

Biomedical Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

In this paper, we present a comprehensive theoretical and experimental investigation of unconventional droplets manipulations on a superhydrophobic- patterned surface microfluidic (S²M) platform. The S²M network pins the liquid-solid interface of droplets to the lithographically defined wetting boundary and establishes direct linkage between the volumetric and hydraulic measures. Diverse manipulation modes are characterized in a bi-droplet configuration, among which several unconventional droplet manipulations are first demonstrated. These include big-to-small droplet merging, droplet balancing, as well as bidirectional transporting, in addition to the classic small-to-big droplet merging. Furthermore, multi-stage programmable bidirectional pumping has been implemented on the S²M platform.

Original language	English (US)
Title of host publication	15th International Conference on Miniaturized Systems for Chemistry and Life Sciences 2011, MicroTAS 2011
Pages	1633-1635
Number of pages	3
Volume	3
State	Published - Dec 1 2011
Event	15th International Conference on Miniaturized Systems for Chemistry and Life Sciences 2011, MicroTAS 2011 - Seattle, WA, United States Duration: Oct 2 2011 → Oct 6 2011

Other

Other	15th International Conference on Miniaturized Systems for Chemistry and Life Sciences 2011, MicroTAS 2011
Country	United States
City	Seattle, WA
Period	10/2/11 → 10/6/11

Keywords

Bidirectional micropump
Droplet manipulations
Surface microfluidics

ASJC Scopus subject areas

Control and Systems Engineering

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Xing, S, Harake, RS & Pan, T 2011, Unconventional droplets manipulations on superhydrophobic-patterned surface microfluidics. in 15th International Conference on Miniaturized Systems for Chemistry and Life Sciences 2011, MicroTAS 2011. vol. 3, pp. 1633-1635, 15th International Conference on Miniaturized Systems for Chemistry and Life Sciences 2011, MicroTAS 2011, Seattle, WA, United States, 10/2/11.

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abstract = "In this paper, we present a comprehensive theoretical and experimental investigation of unconventional droplets manipulations on a superhydrophobic- patterned surface microfluidic (S2M) platform. The S2M network pins the liquid-solid interface of droplets to the lithographically defined wetting boundary and establishes direct linkage between the volumetric and hydraulic measures. Diverse manipulation modes are characterized in a bi-droplet configuration, among which several unconventional droplet manipulations are first demonstrated. These include big-to-small droplet merging, droplet balancing, as well as bidirectional transporting, in addition to the classic small-to-big droplet merging. Furthermore, multi-stage programmable bidirectional pumping has been implemented on the S2M platform.",

keywords = "Bidirectional micropump, Droplet manipulations, Surface microfluidics",

author = "S. Xing and Harake, {R. S.} and Tingrui Pan",

year = "2011",

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language = "English (US)",

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AU - Xing, S.

AU - Harake, R. S.

AU - Pan, Tingrui

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N2 - In this paper, we present a comprehensive theoretical and experimental investigation of unconventional droplets manipulations on a superhydrophobic- patterned surface microfluidic (S2M) platform. The S2M network pins the liquid-solid interface of droplets to the lithographically defined wetting boundary and establishes direct linkage between the volumetric and hydraulic measures. Diverse manipulation modes are characterized in a bi-droplet configuration, among which several unconventional droplet manipulations are first demonstrated. These include big-to-small droplet merging, droplet balancing, as well as bidirectional transporting, in addition to the classic small-to-big droplet merging. Furthermore, multi-stage programmable bidirectional pumping has been implemented on the S2M platform.

AB - In this paper, we present a comprehensive theoretical and experimental investigation of unconventional droplets manipulations on a superhydrophobic- patterned surface microfluidic (S2M) platform. The S2M network pins the liquid-solid interface of droplets to the lithographically defined wetting boundary and establishes direct linkage between the volumetric and hydraulic measures. Diverse manipulation modes are characterized in a bi-droplet configuration, among which several unconventional droplet manipulations are first demonstrated. These include big-to-small droplet merging, droplet balancing, as well as bidirectional transporting, in addition to the classic small-to-big droplet merging. Furthermore, multi-stage programmable bidirectional pumping has been implemented on the S2M platform.

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KW - Droplet manipulations

KW - Surface microfluidics

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