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Microfluidic doublets in aqueous samples generated by microfabricated thermal probes
This paper describes an investigation of microfluidic actuation of doublet patterns in samples of water on blank substrates, using singular and arrayed microfabricated thermal probes. A doublet is a two-dimensional flow pattern consisting of adjacent, opposing vortices with linear streamlines betwee...
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| Published in: | Sensors and actuators. A. Physical. 2010-03, Vol.158 (1), p.116-120 |
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| Main Authors: | , |
| Format: | Article |
| Language: | English |
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| cites | cdi_FETCH-LOGICAL-c329t-214f9b5686d50e2e6315c6db03063c3745041e202a976eb324c0a5a0e3ce4af83 |
| container_end_page | 120 |
| container_issue | 1 |
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| container_title | Sensors and actuators. A. Physical. |
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| creator | Basu, Amar S. Gianchandani, Yogesh B. |
| description | This paper describes an investigation of microfluidic actuation of doublet patterns in samples of water on blank substrates, using singular and arrayed microfabricated thermal probes. A doublet is a two-dimensional flow pattern consisting of adjacent, opposing vortices with linear streamlines between them. In this work, each probe consists of a polyimide thin film cantilever with a metal heater near the tip which generates a temperature gradient up to 1
°C/μm along its length. The probes are 360
μm long, 42–120
μm wide, and 3.5
μm thick, and the tips are typically |
| doi_str_mv | 10.1016/j.sna.2009.12.003 |
| format | article |
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°C/μm along its length. The probes are 360
μm long, 42–120
μm wide, and 3.5
μm thick, and the tips are typically <1
mm away from the liquid surface. The velocity of the doublet flow can be controlled by adjusting the temperature of the heat source or by controlling the gap or attack angle between the heat source and the liquid surface. Linear flow velocities exceeding 5
mm/s and rotational velocities exceeding 1200
rpm are reported.</description><identifier>ISSN: 0924-4247</identifier><identifier>EISSN: 1873-3069</identifier><identifier>DOI: 10.1016/j.sna.2009.12.003</identifier><language>eng</language><publisher>Elsevier B.V</publisher><subject>Actuation ; Doublet ; Flow velocity ; Heat sources ; Heaters ; Liquid surfaces ; Marangoni flow ; Microfluidics ; Particle manipulation ; Rotation ; Surface tension ; Temperature gradient ; Thermal gradient ; Thermal probe ; Vortex</subject><ispartof>Sensors and actuators. A. Physical., 2010-03, Vol.158 (1), p.116-120</ispartof><rights>2009 Elsevier B.V.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c329t-214f9b5686d50e2e6315c6db03063c3745041e202a976eb324c0a5a0e3ce4af83</citedby><cites>FETCH-LOGICAL-c329t-214f9b5686d50e2e6315c6db03063c3745041e202a976eb324c0a5a0e3ce4af83</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,776,780,27901,27902</link.rule.ids></links><search><creatorcontrib>Basu, Amar S.</creatorcontrib><creatorcontrib>Gianchandani, Yogesh B.</creatorcontrib><title>Microfluidic doublets in aqueous samples generated by microfabricated thermal probes</title><title>Sensors and actuators. A. Physical.</title><description>This paper describes an investigation of microfluidic actuation of doublet patterns in samples of water on blank substrates, using singular and arrayed microfabricated thermal probes. A doublet is a two-dimensional flow pattern consisting of adjacent, opposing vortices with linear streamlines between them. In this work, each probe consists of a polyimide thin film cantilever with a metal heater near the tip which generates a temperature gradient up to 1
°C/μm along its length. The probes are 360
μm long, 42–120
μm wide, and 3.5
μm thick, and the tips are typically <1
mm away from the liquid surface. The velocity of the doublet flow can be controlled by adjusting the temperature of the heat source or by controlling the gap or attack angle between the heat source and the liquid surface. Linear flow velocities exceeding 5
mm/s and rotational velocities exceeding 1200
rpm are reported.</description><subject>Actuation</subject><subject>Doublet</subject><subject>Flow velocity</subject><subject>Heat sources</subject><subject>Heaters</subject><subject>Liquid surfaces</subject><subject>Marangoni flow</subject><subject>Microfluidics</subject><subject>Particle manipulation</subject><subject>Rotation</subject><subject>Surface tension</subject><subject>Temperature gradient</subject><subject>Thermal gradient</subject><subject>Thermal probe</subject><subject>Vortex</subject><issn>0924-4247</issn><issn>1873-3069</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2010</creationdate><recordtype>article</recordtype><recordid>eNp9kMtOwzAQRS0EEqXwAey8Y5UwfsRuxApVvKQiNmVtOc4EXOVR7ASJv8dpWbMaybrXc-YQcs0gZ8DU7S6Pvc05QJkzngOIE7JgKy0yAao8JQsoucwkl_qcXMS4g5QQWi_I9tW7MDTt5GvvaD1MVYtjpL6n9mvCYYo02m7fYqQf2GOwI9a0-qHdoWWr4N3hafzE0NmW7sNQYbwkZ41tI179zSV5f3zYrp-zzdvTy_p-kznByzHjTDZlVaiVqgtAjkqwwqm6gsQsnNCyAMmQA7elVlgJLh3YwgIKh9I2K7EkN8d_09pEG0fT-eiwbW0_oxtdCC0ULyAl2TGZsGMM2Jh98J0NP4aBmQWanUkCzSzQMG5mPUtyd-xgOuHbYzDReewd1j6gG009-H_av_68eWM</recordid><startdate>20100301</startdate><enddate>20100301</enddate><creator>Basu, Amar S.</creator><creator>Gianchandani, Yogesh B.</creator><general>Elsevier B.V</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7TB</scope><scope>7U5</scope><scope>8FD</scope><scope>FR3</scope><scope>L7M</scope></search><sort><creationdate>20100301</creationdate><title>Microfluidic doublets in aqueous samples generated by microfabricated thermal probes</title><author>Basu, Amar S. ; Gianchandani, Yogesh B.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c329t-214f9b5686d50e2e6315c6db03063c3745041e202a976eb324c0a5a0e3ce4af83</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2010</creationdate><topic>Actuation</topic><topic>Doublet</topic><topic>Flow velocity</topic><topic>Heat sources</topic><topic>Heaters</topic><topic>Liquid surfaces</topic><topic>Marangoni flow</topic><topic>Microfluidics</topic><topic>Particle manipulation</topic><topic>Rotation</topic><topic>Surface tension</topic><topic>Temperature gradient</topic><topic>Thermal gradient</topic><topic>Thermal probe</topic><topic>Vortex</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Basu, Amar S.</creatorcontrib><creatorcontrib>Gianchandani, Yogesh B.</creatorcontrib><collection>CrossRef</collection><collection>Mechanical & Transportation Engineering Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>Technology Research Database</collection><collection>Engineering Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Sensors and actuators. A. Physical.</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>Microfluidic doublets in aqueous samples generated by microfabricated thermal probes</atitle><jtitle>Sensors and actuators. A. Physical.</jtitle><date>2010-03-01</date><risdate>2010</risdate><volume>158</volume><issue>1</issue><spage>116</spage><epage>120</epage><pages>116-120</pages><issn>0924-4247</issn><eissn>1873-3069</eissn><abstract>This paper describes an investigation of microfluidic actuation of doublet patterns in samples of water on blank substrates, using singular and arrayed microfabricated thermal probes. A doublet is a two-dimensional flow pattern consisting of adjacent, opposing vortices with linear streamlines between them. In this work, each probe consists of a polyimide thin film cantilever with a metal heater near the tip which generates a temperature gradient up to 1
°C/μm along its length. The probes are 360
μm long, 42–120
μm wide, and 3.5
μm thick, and the tips are typically <1
mm away from the liquid surface. The velocity of the doublet flow can be controlled by adjusting the temperature of the heat source or by controlling the gap or attack angle between the heat source and the liquid surface. Linear flow velocities exceeding 5
mm/s and rotational velocities exceeding 1200
rpm are reported.</abstract><pub>Elsevier B.V</pub><doi>10.1016/j.sna.2009.12.003</doi><tpages>5</tpages></addata></record> |
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| identifier | ISSN: 0924-4247 |
| ispartof | Sensors and actuators. A. Physical., 2010-03, Vol.158 (1), p.116-120 |
| issn | 0924-4247 1873-3069 |
| language | eng |
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| source | ScienceDirect Freedom Collection |
| subjects | Actuation Doublet Flow velocity Heat sources Heaters Liquid surfaces Marangoni flow Microfluidics Particle manipulation Rotation Surface tension Temperature gradient Thermal gradient Thermal probe Vortex |
| title | Microfluidic doublets in aqueous samples generated by microfabricated thermal probes |
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