Rapid generation and manipulation of microfluidic vortex flows induced by AC electrokinetics with optical illumination.
Identifieur interne : 000445 ( Main/Exploration ); précédent : 000444; suivant : 000446Rapid generation and manipulation of microfluidic vortex flows induced by AC electrokinetics with optical illumination.
Auteurs : RBID : pubmed:23380888Abstract
We demonstrate a rapid generation of twin opposing microvortices (TOMVs) induced by non-uniform alternating current (AC) electric fields together with a laser beam on a patterned pair of indium tin oxide (ITO) electrodes. A fast and strong jet flow region between twin microvortices is also generated. Its pattern and direction, such as whether it is symmetric or asymmetric, are controlled mainly by the location of a single laser spot relative to the ITO electrodes. With two laser beams, two separate flows are superposed to give a new one. In situ generation and control of the TOMV flow are tested in suspensions of fluorescent polystyrene particles, as well as in milk emulsions. This technique has great potential for dynamically manipulating micro-fluid flows, functioning as a micro-pump or mixer.
DOI: 10.1039/c3lc41021h
PubMed: 23380888
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A fast and strong jet flow region between twin microvortices is also generated. Its pattern and direction, such as whether it is symmetric or asymmetric, are controlled mainly by the location of a single laser spot relative to the ITO electrodes. With two laser beams, two separate flows are superposed to give a new one. In situ generation and control of the TOMV flow are tested in suspensions of fluorescent polystyrene particles, as well as in milk emulsions. This technique has great potential for dynamically manipulating micro-fluid flows, functioning as a micro-pump or mixer.</div></front></TEI><pubmed><MedlineCitation Owner="NLM" Status="PubMed-not-MEDLINE"><PMID Version="1">23380888</PMID><DateCreated><Year>2013</Year><Month>03</Month><Day>05</Day></DateCreated><DateCompleted><Year>2013</Year><Month>08</Month><Day>29</Day></DateCompleted><Article PubModel="Print"><Journal><ISSN IssnType="Electronic">1473-0189</ISSN><JournalIssue CitedMedium="Internet"><Volume>13</Volume><Issue>7</Issue><PubDate><Year>2013</Year><Month>Apr</Month><Day>7</Day></PubDate></JournalIssue><Title>Lab on a chip</Title><ISOAbbreviation>Lab Chip</ISOAbbreviation></Journal><ArticleTitle>Rapid generation and manipulation of microfluidic vortex flows induced by AC electrokinetics with optical illumination.</ArticleTitle><Pagination><MedlinePgn>1289-94</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1039/c3lc41021h</ELocationID><Abstract><AbstractText>We demonstrate a rapid generation of twin opposing microvortices (TOMVs) induced by non-uniform alternating current (AC) electric fields together with a laser beam on a patterned pair of indium tin oxide (ITO) electrodes. A fast and strong jet flow region between twin microvortices is also generated. Its pattern and direction, such as whether it is symmetric or asymmetric, are controlled mainly by the location of a single laser spot relative to the ITO electrodes. With two laser beams, two separate flows are superposed to give a new one. In situ generation and control of the TOMV flow are tested in suspensions of fluorescent polystyrene particles, as well as in milk emulsions. This technique has great potential for dynamically manipulating micro-fluid flows, functioning as a micro-pump or mixer.</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Park</LastName><ForeName>Choongbae</ForeName><Initials>C</Initials><Affiliation>Birck Nanotechnology Center and School of Mechanical Engineering, Purdue University, West Lafayette, IN 47907, USA.</Affiliation></Author><Author ValidYN="Y"><LastName>Wereley</LastName><ForeName>Steven T</ForeName><Initials>ST</Initials></Author></AuthorList><Language>eng</Language><PublicationTypeList><PublicationType>Journal Article</PublicationType></PublicationTypeList></Article><MedlineJournalInfo><Country>England</Country><MedlineTA>Lab Chip</MedlineTA><NlmUniqueID>101128948</NlmUniqueID><ISSNLinking>1473-0189</ISSNLinking></MedlineJournalInfo></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="entrez"><Year>2013</Year><Month>2</Month><Day>6</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="pubmed"><Year>2013</Year><Month>2</Month><Day>6</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2013</Year><Month>2</Month><Day>6</Day><Hour>6</Hour><Minute>1</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="doi">10.1039/c3lc41021h</ArticleId><ArticleId IdType="pubmed">23380888</ArticleId></ArticleIdList></PubmedData></pubmed></record>Pour manipuler ce document sous Unix (Dilib)
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