Dynamics of red blood cells and vesicles in microchannels of oscillating width.
Identifieur interne : 001496 ( Main/Exploration ); précédent : 001495; suivant : 001497Dynamics of red blood cells and vesicles in microchannels of oscillating width.
Auteurs : RBID : pubmed:21508467English descriptors
- KwdEn :
- Animals, Biophysics (methods), Blood Flow Velocity, Cattle, Cell Shape, Edetic Acid (chemistry), Erythrocyte Count, Erythrocytes (cytology), Hemodynamics, Humans, Hydrodynamics, Models, Biological, Models, Statistical, Oscillometry (methods), Serum Albumin, Bovine (metabolism), Surface Properties, Tin Compounds (chemistry).
- MESH :
- chemical , chemistry : Edetic Acid, Tin Compounds.
- cytology : Erythrocytes.
- chemical , metabolism : Serum Albumin, Bovine.
- methods : Biophysics, Oscillometry.
- Animals, Blood Flow Velocity, Cattle, Cell Shape, Erythrocyte Count, Hemodynamics, Humans, Hydrodynamics, Models, Biological, Models, Statistical, Surface Properties.
Abstract
We have studied the dynamics of red blood cells and fluid lipid vesicles in hydrodynamic flow fields created by microchannels with periodically varying channel width. For red blood cells we find a transition from a regime with oscillating tilt angle and fixed shape to a regime with oscillating shape with increasing flow velocity. We have determined the crossover to occur at a critical ratio L(y)/v(m) ≈ 2.2 × 10⁻³ s with channel width L(y) and red blood cell velocity v(m). These oscillations are superposed by shape transitions from a discocyte to a slipper shape at low velocities and a slipper to parachute transition at high flow velocities.
DOI: 10.1088/0953-8984/23/18/184116
PubMed: 21508467
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<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en">Dynamics of red blood cells and vesicles in microchannels of oscillating width.</title><author><name sortKey="Braunm Ller, S" uniqKey="Braunm Ller S">S Braunmüller</name><affiliation wicri:level="3"><nlm:affiliation>Microfluidics Group, EP1, University of Augsburg, 86159 Augsburg, Germany.</nlm:affiliation><country xml:lang="fr">Allemagne</country><wicri:regionArea>Microfluidics Group, EP1, University of Augsburg, 86159 Augsburg</wicri:regionArea><placeName><region type="land" nuts="1">Bavière</region><region type="district" nuts="2">District de Souabe</region><settlement type="city">Augsbourg</settlement></placeName></affiliation></author><author><name sortKey="Schmid, L" uniqKey="Schmid L">L Schmid</name></author><author><name sortKey="Franke, T" uniqKey="Franke T">T Franke</name></author></titleStmt><publicationStmt><date when="2011">2011</date><idno type="doi">10.1088/0953-8984/23/18/184116</idno><idno type="RBID">pubmed:21508467</idno><idno type="pmid">21508467</idno><idno type="wicri:Area/Main/Corpus">001415</idno><idno type="wicri:Area/Main/Curation">001415</idno><idno type="wicri:Area/Main/Exploration">001496</idno></publicationStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Animals</term><term>Biophysics (methods)</term><term>Blood Flow Velocity</term><term>Cattle</term><term>Cell Shape</term><term>Edetic Acid (chemistry)</term><term>Erythrocyte Count</term><term>Erythrocytes (cytology)</term><term>Hemodynamics</term><term>Humans</term><term>Hydrodynamics</term><term>Models, Biological</term><term>Models, Statistical</term><term>Oscillometry (methods)</term><term>Serum Albumin, Bovine (metabolism)</term><term>Surface Properties</term><term>Tin Compounds (chemistry)</term></keywords><keywords scheme="MESH" type="chemical" qualifier="chemistry" xml:lang="en"><term>Edetic Acid</term><term>Tin Compounds</term></keywords><keywords scheme="MESH" qualifier="cytology" xml:lang="en"><term>Erythrocytes</term></keywords><keywords scheme="MESH" type="chemical" qualifier="metabolism" xml:lang="en"><term>Serum Albumin, Bovine</term></keywords><keywords scheme="MESH" qualifier="methods" xml:lang="en"><term>Biophysics</term><term>Oscillometry</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Animals</term><term>Blood Flow Velocity</term><term>Cattle</term><term>Cell Shape</term><term>Erythrocyte Count</term><term>Hemodynamics</term><term>Humans</term><term>Hydrodynamics</term><term>Models, Biological</term><term>Models, Statistical</term><term>Surface Properties</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">We have studied the dynamics of red blood cells and fluid lipid vesicles in hydrodynamic flow fields created by microchannels with periodically varying channel width. For red blood cells we find a transition from a regime with oscillating tilt angle and fixed shape to a regime with oscillating shape with increasing flow velocity. We have determined the crossover to occur at a critical ratio L(y)/v(m) ≈ 2.2 × 10⁻³ s with channel width L(y) and red blood cell velocity v(m). These oscillations are superposed by shape transitions from a discocyte to a slipper shape at low velocities and a slipper to parachute transition at high flow velocities.</div></front></TEI><pubmed><MedlineCitation Owner="NLM" Status="MEDLINE"><PMID Version="1">21508467</PMID><DateCreated><Year>2011</Year><Month>04</Month><Day>21</Day></DateCreated><DateCompleted><Year>2011</Year><Month>10</Month><Day>14</Day></DateCompleted><DateRevised><Year>2013</Year><Month>11</Month><Day>21</Day></DateRevised><Article PubModel="Print-Electronic"><Journal><ISSN IssnType="Electronic">1361-648X</ISSN><JournalIssue CitedMedium="Internet"><Volume>23</Volume><Issue>18</Issue><PubDate><Year>2011</Year><Month>May</Month><Day>11</Day></PubDate></JournalIssue><Title>Journal of physics. Condensed matter : an Institute of Physics journal</Title><ISOAbbreviation>J Phys Condens Matter</ISOAbbreviation></Journal><ArticleTitle>Dynamics of red blood cells and vesicles in microchannels of oscillating width.</ArticleTitle><Pagination><MedlinePgn>184116</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1088/0953-8984/23/18/184116</ELocationID><Abstract><AbstractText>We have studied the dynamics of red blood cells and fluid lipid vesicles in hydrodynamic flow fields created by microchannels with periodically varying channel width. For red blood cells we find a transition from a regime with oscillating tilt angle and fixed shape to a regime with oscillating shape with increasing flow velocity. We have determined the crossover to occur at a critical ratio L(y)/v(m) ≈ 2.2 × 10⁻³ s with channel width L(y) and red blood cell velocity v(m). These oscillations are superposed by shape transitions from a discocyte to a slipper shape at low velocities and a slipper to parachute transition at high flow velocities.</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Braunmüller</LastName><ForeName>S</ForeName><Initials>S</Initials><Affiliation>Microfluidics Group, EP1, University of Augsburg, 86159 Augsburg, Germany.</Affiliation></Author><Author ValidYN="Y"><LastName>Schmid</LastName><ForeName>L</ForeName><Initials>L</Initials></Author><Author ValidYN="Y"><LastName>Franke</LastName><ForeName>T</ForeName><Initials>T</Initials></Author></AuthorList><Language>eng</Language><PublicationTypeList><PublicationType>Journal Article</PublicationType><PublicationType>Research Support, Non-U.S. Gov't</PublicationType></PublicationTypeList><ArticleDate DateType="Electronic"><Year>2011</Year><Month>04</Month><Day>20</Day></ArticleDate></Article><MedlineJournalInfo><Country>England</Country><MedlineTA>J Phys Condens Matter</MedlineTA><NlmUniqueID>101165248</NlmUniqueID><ISSNLinking>0953-8984</ISSNLinking></MedlineJournalInfo><ChemicalList><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance>Serum Albumin, Bovine</NameOfSubstance></Chemical><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance>Tin Compounds</NameOfSubstance></Chemical><Chemical><RegistryNumber>71243-84-0</RegistryNumber><NameOfSubstance>indium tin oxide</NameOfSubstance></Chemical><Chemical><RegistryNumber>9G34HU7RV0</RegistryNumber><NameOfSubstance>Edetic Acid</NameOfSubstance></Chemical></ChemicalList><CitationSubset>IM</CitationSubset><MeshHeadingList><MeshHeading><DescriptorName MajorTopicYN="N">Animals</DescriptorName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N">Biophysics</DescriptorName><QualifierName MajorTopicYN="Y">methods</QualifierName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N">Blood Flow Velocity</DescriptorName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N">Cattle</DescriptorName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N">Cell Shape</DescriptorName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N">Edetic Acid</DescriptorName><QualifierName MajorTopicYN="N">chemistry</QualifierName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N">Erythrocyte Count</DescriptorName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N">Erythrocytes</DescriptorName><QualifierName MajorTopicYN="Y">cytology</QualifierName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N">Hemodynamics</DescriptorName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N">Humans</DescriptorName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N">Hydrodynamics</DescriptorName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N">Models, Biological</DescriptorName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N">Models, Statistical</DescriptorName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N">Oscillometry</DescriptorName><QualifierName MajorTopicYN="Y">methods</QualifierName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N">Serum Albumin, Bovine</DescriptorName><QualifierName MajorTopicYN="N">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N">Surface Properties</DescriptorName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N">Tin Compounds</DescriptorName><QualifierName MajorTopicYN="N">chemistry</QualifierName></MeshHeading></MeshHeadingList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="aheadofprint"><Year>2011</Year><Month>4</Month><Day>20</Day></PubMedPubDate><PubMedPubDate PubStatus="entrez"><Year>2011</Year><Month>4</Month><Day>22</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="pubmed"><Year>2011</Year><Month>4</Month><Day>22</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2011</Year><Month>10</Month><Day>15</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pii">S0953-8984(11)58572-8</ArticleId><ArticleId IdType="doi">10.1088/0953-8984/23/18/184116</ArticleId><ArticleId IdType="pubmed">21508467</ArticleId></ArticleIdList></PubmedData></pubmed></record>Pour manipuler ce document sous Unix (Dilib)
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