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Shaping high-speed Marangoni flow in liquid films by microscale perturbations in surface temperature
The authors show that a variety of controlled flow patterns, including toroidal cells and surface doublets, can be generated in 80 - 400 μ m thick liquid films by placing scanning microscopy probes with integrated heaters just above the surface ( < 400 μ m separation). The probes project sharp te...
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| Published in: | Applied physics letters 2007-01, Vol.90 (3), p.034102-034102-3 |
|---|---|
| Main Authors: | , |
| Format: | Article |
| Language: | English |
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| cites | cdi_FETCH-LOGICAL-c284t-d2360b1acb51fd2284686d1680974e4c46136e0a72b9c02c4d215866b50fd0fe3 |
| container_end_page | 034102-3 |
| container_issue | 3 |
| container_start_page | 034102 |
| container_title | Applied physics letters |
| container_volume | 90 |
| creator | Basu, Amar S. Gianchandani, Yogesh B. |
| description | The authors show that a variety of controlled flow patterns, including toroidal cells and surface doublets, can be generated in
80
-
400
μ
m
thick liquid films by placing scanning microscopy probes with integrated heaters just above the surface (
<
400
μ
m
separation). The probes project sharp temperature gradients on the liquid surface which drive Marangoni flow. Flow velocities approaching
3000
μ
m
∕
s
are experimentally demonstrated on length scales of
20
-
200
μ
m
with
<
20
mW
input power. For liquids such as water and oil, in which the surface tension coefficient is
≈
0.2
mN
∕
m
K
, flows
>
1000
μ
m
∕
s
can be accomplished with surface temperature perturbations
<
1
°
C
. This technique enables microfluidic manipulation on unpatterned substrates. |
| doi_str_mv | 10.1063/1.2430777 |
| format | article |
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80
-
400
μ
m
thick liquid films by placing scanning microscopy probes with integrated heaters just above the surface (
<
400
μ
m
separation). The probes project sharp temperature gradients on the liquid surface which drive Marangoni flow. Flow velocities approaching
3000
μ
m
∕
s
are experimentally demonstrated on length scales of
20
-
200
μ
m
with
<
20
mW
input power. For liquids such as water and oil, in which the surface tension coefficient is
≈
0.2
mN
∕
m
K
, flows
>
1000
μ
m
∕
s
can be accomplished with surface temperature perturbations
<
1
°
C
. This technique enables microfluidic manipulation on unpatterned substrates.</description><identifier>ISSN: 0003-6951</identifier><identifier>EISSN: 1077-3118</identifier><identifier>DOI: 10.1063/1.2430777</identifier><identifier>CODEN: APPLAB</identifier><language>eng</language><publisher>American Institute of Physics</publisher><ispartof>Applied physics letters, 2007-01, Vol.90 (3), p.034102-034102-3</ispartof><rights>2007 American Institute of Physics</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c284t-d2360b1acb51fd2284686d1680974e4c46136e0a72b9c02c4d215866b50fd0fe3</citedby><cites>FETCH-LOGICAL-c284t-d2360b1acb51fd2284686d1680974e4c46136e0a72b9c02c4d215866b50fd0fe3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://pubs.aip.org/apl/article-lookup/doi/10.1063/1.2430777$$EHTML$$P50$$Gscitation$$H</linktohtml><link.rule.ids>314,776,778,780,791,27901,27902,76126</link.rule.ids></links><search><creatorcontrib>Basu, Amar S.</creatorcontrib><creatorcontrib>Gianchandani, Yogesh B.</creatorcontrib><title>Shaping high-speed Marangoni flow in liquid films by microscale perturbations in surface temperature</title><title>Applied physics letters</title><description>The authors show that a variety of controlled flow patterns, including toroidal cells and surface doublets, can be generated in
80
-
400
μ
m
thick liquid films by placing scanning microscopy probes with integrated heaters just above the surface (
<
400
μ
m
separation). The probes project sharp temperature gradients on the liquid surface which drive Marangoni flow. Flow velocities approaching
3000
μ
m
∕
s
are experimentally demonstrated on length scales of
20
-
200
μ
m
with
<
20
mW
input power. For liquids such as water and oil, in which the surface tension coefficient is
≈
0.2
mN
∕
m
K
, flows
>
1000
μ
m
∕
s
can be accomplished with surface temperature perturbations
<
1
°
C
. This technique enables microfluidic manipulation on unpatterned substrates.</description><issn>0003-6951</issn><issn>1077-3118</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2007</creationdate><recordtype>article</recordtype><recordid>eNp1kMtOwzAQRS0EEqWw4A-8ZZEyYydOukFCFS-pFQtgbTl-pEZ5YadC_XuStltWVzP3aDQ6hNwiLBAEv8cFSznkeX5GZjhmwhGLczIDAJ6IZYaX5CrG73HMGOczYj62qvdtRbe-2iaxt9bQjQqqrbrWU1d3v9S3tPY_O2-o83UTabmnjdehi1rVlvY2DLtQqsF3bZzYuAtOaUsH24ydGkt7TS6cqqO9OeWcfD0_fa5ek_X7y9vqcZ1oVqRDYhgXUKLSZYbOsHEnCmFQFLDMU5vqVCAXFlTOyqUGplPDMCuEKDNwBpzlc3J3vDt9F4N1sg--UWEvEeSkR6I86RnZhyMbtR8O3_8PnxzJyZE8OJIb_ge_rm27</recordid><startdate>20070115</startdate><enddate>20070115</enddate><creator>Basu, Amar S.</creator><creator>Gianchandani, Yogesh B.</creator><general>American Institute of Physics</general><scope>AAYXX</scope><scope>CITATION</scope></search><sort><creationdate>20070115</creationdate><title>Shaping high-speed Marangoni flow in liquid films by microscale perturbations in surface temperature</title><author>Basu, Amar S. ; Gianchandani, Yogesh B.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c284t-d2360b1acb51fd2284686d1680974e4c46136e0a72b9c02c4d215866b50fd0fe3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2007</creationdate><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Basu, Amar S.</creatorcontrib><creatorcontrib>Gianchandani, Yogesh B.</creatorcontrib><collection>CrossRef</collection><jtitle>Applied physics letters</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Basu, Amar S.</au><au>Gianchandani, Yogesh B.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Shaping high-speed Marangoni flow in liquid films by microscale perturbations in surface temperature</atitle><jtitle>Applied physics letters</jtitle><date>2007-01-15</date><risdate>2007</risdate><volume>90</volume><issue>3</issue><spage>034102</spage><epage>034102-3</epage><pages>034102-034102-3</pages><issn>0003-6951</issn><eissn>1077-3118</eissn><coden>APPLAB</coden><abstract>The authors show that a variety of controlled flow patterns, including toroidal cells and surface doublets, can be generated in
80
-
400
μ
m
thick liquid films by placing scanning microscopy probes with integrated heaters just above the surface (
<
400
μ
m
separation). The probes project sharp temperature gradients on the liquid surface which drive Marangoni flow. Flow velocities approaching
3000
μ
m
∕
s
are experimentally demonstrated on length scales of
20
-
200
μ
m
with
<
20
mW
input power. For liquids such as water and oil, in which the surface tension coefficient is
≈
0.2
mN
∕
m
K
, flows
>
1000
μ
m
∕
s
can be accomplished with surface temperature perturbations
<
1
°
C
. This technique enables microfluidic manipulation on unpatterned substrates.</abstract><pub>American Institute of Physics</pub><doi>10.1063/1.2430777</doi></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0003-6951 |
| ispartof | Applied physics letters, 2007-01, Vol.90 (3), p.034102-034102-3 |
| issn | 0003-6951 1077-3118 |
| language | eng |
| recordid | cdi_crossref_primary_10_1063_1_2430777 |
| source | American Institute of Physics:Jisc Collections:Transitional Journals Agreement 2021-23 (Reading list); AIP Journals (American Institute of Physics) |
| title | Shaping high-speed Marangoni flow in liquid films by microscale perturbations in surface temperature |
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