Osmosis and pervaporation in polyimide submicron microfluidic channel structures

Research output: Contribution to journalArticleAcademicpeer-review

19 Citations (Scopus)

Abstract

Osmosis and pervaporation of water through the roof of all-polyimide channels of 500 nm height is described. The phenomena cause both a liquid flow in the channels and a concentration change of dissolved salt. Both effects are amplified due to the thin channel roof and the small channel height. Osmotic movement of demineralized water was observed towards a salt solution and towards ethanol and isopropanol. Water movement by pervaporation was observed from a salt solution towards the atmosphere. Flow velocities of up to 70 �?��m/s were generated in the channels. The results are in accordance with predictions from the solution-diffusion model for membrane transport. The observed phenomena can be applied in a nanofluidic osmotic pump or for an osmotic or pervaporative concentrator.
Original languageUndefined
Pages (from-to)114103
Number of pages3
JournalApplied physics letters
Volume87
Issue number11
DOIs
Publication statusPublished - 8 Sep 2005

Keywords

  • IR-52858
  • EWI-18421
  • METIS-224668

Cite this

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title = "Osmosis and pervaporation in polyimide submicron microfluidic channel structures",
abstract = "Osmosis and pervaporation of water through the roof of all-polyimide channels of 500 nm height is described. The phenomena cause both a liquid flow in the channels and a concentration change of dissolved salt. Both effects are amplified due to the thin channel roof and the small channel height. Osmotic movement of demineralized water was observed towards a salt solution and towards ethanol and isopropanol. Water movement by pervaporation was observed from a salt solution towards the atmosphere. Flow velocities of up to 70 �?��m/s were generated in the channels. The results are in accordance with predictions from the solution-diffusion model for membrane transport. The observed phenomena can be applied in a nanofluidic osmotic pump or for an osmotic or pervaporative concentrator.",
keywords = "IR-52858, EWI-18421, METIS-224668",
author = "Eijkel, {Jan C.T.} and Bomer, {Johan G.} and {van den Berg}, Albert",
note = "This research was supported by the Dutch Ministry of Economic Affairs through a NanoImpuls grant in the Nanoned program.",
year = "2005",
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day = "8",
doi = "10.1063/1.2046727",
language = "Undefined",
volume = "87",
pages = "114103",
journal = "Applied physics letters",
issn = "0003-6951",
publisher = "American Institute of Physics",
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Osmosis and pervaporation in polyimide submicron microfluidic channel structures. / Eijkel, Jan C.T.; Bomer, Johan G.; van den Berg, Albert.

In: Applied physics letters, Vol. 87, No. 11, 08.09.2005, p. 114103.

Research output: Contribution to journalArticleAcademicpeer-review

TY - JOUR

T1 - Osmosis and pervaporation in polyimide submicron microfluidic channel structures

AU - Eijkel, Jan C.T.

AU - Bomer, Johan G.

AU - van den Berg, Albert

N1 - This research was supported by the Dutch Ministry of Economic Affairs through a NanoImpuls grant in the Nanoned program.

PY - 2005/9/8

Y1 - 2005/9/8

N2 - Osmosis and pervaporation of water through the roof of all-polyimide channels of 500 nm height is described. The phenomena cause both a liquid flow in the channels and a concentration change of dissolved salt. Both effects are amplified due to the thin channel roof and the small channel height. Osmotic movement of demineralized water was observed towards a salt solution and towards ethanol and isopropanol. Water movement by pervaporation was observed from a salt solution towards the atmosphere. Flow velocities of up to 70 �?��m/s were generated in the channels. The results are in accordance with predictions from the solution-diffusion model for membrane transport. The observed phenomena can be applied in a nanofluidic osmotic pump or for an osmotic or pervaporative concentrator.

AB - Osmosis and pervaporation of water through the roof of all-polyimide channels of 500 nm height is described. The phenomena cause both a liquid flow in the channels and a concentration change of dissolved salt. Both effects are amplified due to the thin channel roof and the small channel height. Osmotic movement of demineralized water was observed towards a salt solution and towards ethanol and isopropanol. Water movement by pervaporation was observed from a salt solution towards the atmosphere. Flow velocities of up to 70 �?��m/s were generated in the channels. The results are in accordance with predictions from the solution-diffusion model for membrane transport. The observed phenomena can be applied in a nanofluidic osmotic pump or for an osmotic or pervaporative concentrator.

KW - IR-52858

KW - EWI-18421

KW - METIS-224668

U2 - 10.1063/1.2046727

DO - 10.1063/1.2046727

M3 - Article

VL - 87

SP - 114103

JO - Applied physics letters

JF - Applied physics letters

SN - 0003-6951

IS - 11

ER -