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231223s2008 xx |||||o 00| ||eng c |
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|a 10.1021/la800423k
|2 doi
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|a pubmed24n0604.xml
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|a eng
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| 100 |
1 |
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|a García-Sánchez, P
|e verfasserin
|4 aut
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| 245 |
1 |
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|a Traveling-wave electrokinetic micropumps
|b velocity, electrical current, and impedance measurements
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| 264 |
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|c 2008
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| 336 |
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|a Text
|b txt
|2 rdacontent
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| 337 |
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|a ƒaComputermedien
|b c
|2 rdamedia
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| 338 |
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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| 500 |
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|a Date Completed 13.11.2008
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|a Date Revised 28.08.2008
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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| 520 |
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|a An array of microelectrodes covered in an electrolyte and energized by a traveling-wave potential produces net movement of the fluid. Arrays of platinum microelectrodes of two different characteristic sizes have been studied. For both sizes of arrays, at low voltages (<2 V pp) the electrolyte flow is in qualitative agreement with the linear theory of ac electroosmosis. At voltages above a threshold, the direction of fluid flow is reversed. The electrical impedance of the electrode-electrolyte system was measured after the experiments, and changes in the electrical properties of the electrolyte were observed. Measurements of the electrical current during pumping of the electrolyte are also reported. Transient behaviors in both electrical current and fluid velocity were observed. The Faradaic currents probably generate conductivity gradients in the liquid bulk, which in turn give rise to electrical forces. These effects are discussed in relation to the fluid flow observations
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| 650 |
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|a Journal Article
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| 700 |
1 |
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|a Ramos, A
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Green, N G
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Morgan, H
|e verfasserin
|4 aut
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| 773 |
0 |
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|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1992
|g 24(2008), 17 vom: 02. Sept., Seite 9361-9
|w (DE-627)NLM098181009
|x 1520-5827
|7 nnns
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| 773 |
1 |
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|g volume:24
|g year:2008
|g number:17
|g day:02
|g month:09
|g pages:9361-9
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| 856 |
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|u http://dx.doi.org/10.1021/la800423k
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