Hauptseite > Publikationsdatenbank > Semiflexible polymer conformation, distribution and migration in microcapillary flows > print

001     15476
005     20240610120518.0
024 7 _ |a pmid:21508477
|2 pmid
024 7 _ |a 10.1088/0953-8984/23/18/184117
|2 DOI
024 7 _ |a WOS:000289725300018
|2 WOS
024 7 _ |a 2128/23203
|2 Handle
037 _ _ |a PreJuSER-15476
041 _ _ |a eng
082 _ _ |a 530
084 _ _ |2 WoS
|a Physics, Condensed Matter
100 1 _ |0 P:(DE-Juel1)VDB71679
|a Chelakkot, R.
|b 0
|u FZJ
245 _ _ |a Semiflexible polymer conformation, distribution and migration in microcapillary flows
260 _ _ |a Bristol
|b IOP Publ.
|c 2011
300 _ _ |a 184117
336 7 _ |a Journal Article
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336 7 _ |a Output Types/Journal article
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336 7 _ |a Journal Article
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336 7 _ |a ARTICLE
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336 7 _ |a JOURNAL_ARTICLE
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336 7 _ |a article
|2 DRIVER
440 _ 0 |0 3703
|a Journal of Physics: Condensed Matter
|v 23
|x 0953-8984
|y 18
500 _ _ |a The financial support and the stimulating environment of the DFG priority program 'Nano- and Microfluidics' is gratefully acknowledged. In particular, we thank R Finken and U Seifert (Stuttgart), L Schmid and T Franke (Augsburg), and D Steinhauser and T Pfohl (Gottingen and Basel) for many helpful and inspiring discussions.
520 _ _ |a The flow behavior of a semiflexible polymer in microchannels is studied using multiparticle collision dynamics, a particle-based hydrodynamic simulation technique. Conformations, distributions, and radial cross-streamline migration are investigated for various bending rigidities, with persistence lengths L(p) in the range 0.5 ≤ L(p)/L(r) ≤ 30. The flow behavior is governed by the competition between a hydrodynamic lift force and steric repulsion from the wall, which lead to migration away from the wall, and a locally varying flow induced orientation, which drives the polymer away from the channel center and towards the wall. The different dependences of these effects on the polymer bending rigidity and the flow velocity results in a complex dynamical behavior. However, a generic effect is the appearance of a maximum in the monomer and the center-of-mass distributions, which occurs at the channel center for small flow velocities, but moves off-center at higher velocities.
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588 _ _ |a Dataset connected to Web of Science, Pubmed
650 _ 2 |2 MeSH
|a Algorithms
650 _ 2 |2 MeSH
|a Animals
650 _ 2 |2 MeSH
|a Biophysics: methods
650 _ 2 |2 MeSH
|a Computer Simulation
650 _ 2 |2 MeSH
|a Diffusion
650 _ 2 |2 MeSH
|a Erythrocytes: cytology
650 _ 2 |2 MeSH
|a Humans
650 _ 2 |2 MeSH
|a Hydrodynamics
650 _ 2 |2 MeSH
|a Models, Chemical
650 _ 2 |2 MeSH
|a Molecular Conformation
650 _ 2 |2 MeSH
|a Motion
650 _ 2 |2 MeSH
|a Nanotechnology: methods
650 _ 2 |2 MeSH
|a Polymers: chemistry
650 _ 2 |2 MeSH
|a Solvents: chemistry
650 _ 7 |0 0
|2 NLM Chemicals
|a Polymers
650 _ 7 |0 0
|2 NLM Chemicals
|a Solvents
650 _ 7 |2 WoSType
|a J
700 1 _ |0 P:(DE-Juel1)131039
|a Winkler, R.G.
|b 1
|u FZJ
700 1 _ |0 P:(DE-Juel1)130665
|a Gompper, G.
|b 2
|u FZJ
773 _ _ |0 PERI:(DE-600)1472968-4
|a 10.1088/0953-8984/23/18/184117
|g Vol. 23, p. 184117
|p 184117
|q 23<184117
|t Journal of physics / Condensed matter
|v 23
|x 0953-8984
|y 2011
856 7 _ |u http://dx.doi.org/10.1088/0953-8984/23/18/184117
856 4 _ |u https://juser.fz-juelich.de/record/15476/files/1008.3511.pdf
|y OpenAccess
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|v Functional Macromolecules and Complexes
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