The effect of interfacial forces on 2-phase microfluidics

Lingling Shui; Jan C.T. Eijkel; Daniël Wijnperle; Albert van den Berg

The effect of interfacial forces on 2-phase microfluidics

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review

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Abstract

We present the influence of both the solid-liquid interfacial force (surface wettability) and liquid-liquid interfacial force (added surfactants) on water-oil two-phase flow in microfluidic devices. Experimental results show that, in contrast to macroscale experiments, the surface wettability crucially determines the emulsion type created in the microchannels: O/W in hydrophilic channel and W/O in hydrophobic channel. Surfactants, however, determines the flow pattern, changing from droplet-based to stratified flow by decreasing �?�wo.

Original language	Undefined
Title of host publication	12th International Conference on Miniaturized Systems for Chemistry and Life Sciences
Editors	L.E. Locascio, M. Gaitan, B.M. Paegel, D.J. Ross, W.N. Vreeland
Place of Publication	San Diego
Publisher	The Chemical and Biological Microsystems Society
Pages	790-792
Number of pages	3
ISBN (Print)	978-0-9798064-1-4
Publication status	Published - 12 Oct 2008
Event	12th International Conference on Miniaturized Systems for Chemistry and Life Sciences, µTAS 2008 - San Diego, United States Duration: 12 Oct 2008 → 16 Oct 2008 Conference number: 12

Publication series

Name	Micro Total Analysis Systems
Publisher	Chemical and Biological Micro Systems Society
Volume	1
ISSN (Print)	1556-5890

Conference

Conference	12th International Conference on Miniaturized Systems for Chemistry and Life Sciences, µTAS 2008
Abbreviated title	MicroTAS
Country/Territory	United States
City	San Diego
Period	12/10/08 → 16/10/08

Keywords

EWI-14979
METIS-256145
IR-62716

Access to Document

http://eprints.eemcs.utwente.nl/secure2/14979/01/shui_microtas.pdf

Cite this

Shui, L., Eijkel, J. C. T., Wijnperle, D., & van den Berg, A. (2008). The effect of interfacial forces on 2-phase microfluidics. In L. E. Locascio, M. Gaitan, B. M. Paegel, D. J. Ross, & W. N. Vreeland (Eds.), 12th International Conference on Miniaturized Systems for Chemistry and Life Sciences (pp. 790-792). (Micro Total Analysis Systems; Vol. 1). The Chemical and Biological Microsystems Society. http://eprints.eemcs.utwente.nl/secure2/14979/01/shui_microtas.pdf

Shui, Lingling ; Eijkel, Jan C.T. ; Wijnperle, Daniël et al. / The effect of interfacial forces on 2-phase microfluidics. 12th International Conference on Miniaturized Systems for Chemistry and Life Sciences. editor / L.E. Locascio ; M. Gaitan ; B.M. Paegel ; D.J. Ross ; W.N. Vreeland. San Diego : The Chemical and Biological Microsystems Society, 2008. pp. 790-792 (Micro Total Analysis Systems).

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abstract = "We present the influence of both the solid-liquid interfacial force (surface wettability) and liquid-liquid interfacial force (added surfactants) on water-oil two-phase flow in microfluidic devices. Experimental results show that, in contrast to macroscale experiments, the surface wettability crucially determines the emulsion type created in the microchannels: O/W in hydrophilic channel and W/O in hydrophobic channel. Surfactants, however, determines the flow pattern, changing from droplet-based to stratified flow by decreasing �?�wo.",

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author = "Lingling Shui and Eijkel, \{Jan C.T.\} and Dani{\"e}l Wijnperle and \{van den Berg\}, Albert",

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isbn = "978-0-9798064-1-4",

series = "Micro Total Analysis Systems",

publisher = "The Chemical and Biological Microsystems Society",

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Shui, L, Eijkel, JCT , Wijnperle, D & van den Berg, A 2008, The effect of interfacial forces on 2-phase microfluidics. in LE Locascio, M Gaitan, BM Paegel, DJ Ross & WN Vreeland (eds), 12th International Conference on Miniaturized Systems for Chemistry and Life Sciences. Micro Total Analysis Systems, vol. 1, The Chemical and Biological Microsystems Society, San Diego, pp. 790-792, 12th International Conference on Miniaturized Systems for Chemistry and Life Sciences, µTAS 2008, San Diego, California, United States, 12/10/08. <http://eprints.eemcs.utwente.nl/secure2/14979/01/shui_microtas.pdf>

The effect of interfacial forces on 2-phase microfluidics. / Shui, Lingling; Eijkel, Jan C.T.; Wijnperle, Daniël et al.
12th International Conference on Miniaturized Systems for Chemistry and Life Sciences. ed. / L.E. Locascio; M. Gaitan; B.M. Paegel; D.J. Ross; W.N. Vreeland. San Diego: The Chemical and Biological Microsystems Society, 2008. p. 790-792 (Micro Total Analysis Systems; Vol. 1).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review

TY - GEN

T1 - The effect of interfacial forces on 2-phase microfluidics

AU - Shui, Lingling

AU - Eijkel, Jan C.T.

AU - Wijnperle, Daniël

AU - van den Berg, Albert

N1 - Conference code: 12

PY - 2008/10/12

Y1 - 2008/10/12

N2 - We present the influence of both the solid-liquid interfacial force (surface wettability) and liquid-liquid interfacial force (added surfactants) on water-oil two-phase flow in microfluidic devices. Experimental results show that, in contrast to macroscale experiments, the surface wettability crucially determines the emulsion type created in the microchannels: O/W in hydrophilic channel and W/O in hydrophobic channel. Surfactants, however, determines the flow pattern, changing from droplet-based to stratified flow by decreasing �?�wo.

AB - We present the influence of both the solid-liquid interfacial force (surface wettability) and liquid-liquid interfacial force (added surfactants) on water-oil two-phase flow in microfluidic devices. Experimental results show that, in contrast to macroscale experiments, the surface wettability crucially determines the emulsion type created in the microchannels: O/W in hydrophilic channel and W/O in hydrophobic channel. Surfactants, however, determines the flow pattern, changing from droplet-based to stratified flow by decreasing �?�wo.

KW - EWI-14979

KW - METIS-256145

KW - IR-62716

M3 - Conference contribution

SN - 978-0-9798064-1-4

T3 - Micro Total Analysis Systems

SP - 790

EP - 792

BT - 12th International Conference on Miniaturized Systems for Chemistry and Life Sciences

A2 - Locascio, L.E.

A2 - Gaitan, M.

A2 - Paegel, B.M.

A2 - Ross, D.J.

A2 - Vreeland, W.N.

PB - The Chemical and Biological Microsystems Society

CY - San Diego

T2 - 12th International Conference on Miniaturized Systems for Chemistry and Life Sciences, µTAS 2008

Y2 - 12 October 2008 through 16 October 2008

ER -

Shui L, Eijkel JCT , Wijnperle D , van den Berg A. The effect of interfacial forces on 2-phase microfluidics. In Locascio LE, Gaitan M, Paegel BM, Ross DJ, Vreeland WN, editors, 12th International Conference on Miniaturized Systems for Chemistry and Life Sciences. San Diego: The Chemical and Biological Microsystems Society. 2008. p. 790-792. (Micro Total Analysis Systems).