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| Home > Publications database > Direct visualization of flow-induced conformationaltransitions of single actin filaments in entangled solutions > print |
| 001 | 279801 | ||
| 005 | 20240619083520.0 | ||
| 037 | _ | _ | |a FZJ-2015-07683 |
| 041 | _ | _ | |a English |
| 100 | 1 | _ | |a Lettinga, M. P. |0 P:(DE-Juel1)130797 |b 0 |e Corresponding author |
| 111 | 2 | _ | |a 29th conference of the European Colloid and Interface Society |g ECIS |c Bordeaux |d 2015-09-07 - 2015-09-10 |w France |
| 245 | _ | _ | |a Direct visualization of flow-induced conformationaltransitions of single actin filaments in entangled solutions |
| 260 | _ | _ | |c 2015 |
| 336 | 7 | _ | |a Conference Presentation |b conf |m conf |0 PUB:(DE-HGF)6 |s 1452070703_26996 |2 PUB:(DE-HGF) |x Plenary/Keynote |
| 336 | 7 | _ | |a Conference Paper |0 33 |2 EndNote |
| 336 | 7 | _ | |a Other |2 DataCite |
| 336 | 7 | _ | |a LECTURE_SPEECH |2 ORCID |
| 336 | 7 | _ | |a conferenceObject |2 DRIVER |
| 336 | 7 | _ | |a INPROCEEDINGS |2 BibTeX |
| 520 | _ | _ | |a While semi-flexible polymers and fibres are an important class of material due to their rich mechanical properties, it remains unclear how these properties relate to the microscopic conformation of the polymers. Actin filaments constitute an ideal model polymer system due to their micron-sized length and relatively high stiffness that allow imaging at the single filament level. Here we study the effect of entanglements on the conformational dynamics of actin filaments in shear flow. We directly measure the full three-dimensional conformation of single actin filaments, using confocal microscopy in combination with a counter-rotating cone-plate shear cell. We show that initially entangled filaments form disentangled orientationally ordered hairpins, confined in the flow-vorticity plane. In addition, shear flow causes stretching and shear alignment of the hairpin tails, while the filament length distribution remains unchanged. These observations explain the strain-softening and shear thinning behaviour of entangled F-actin solutions, which aids the understanding of the flow behaviour of complex fluids containing semi-flexible polymers [1]. |
| 536 | _ | _ | |a 551 - Functional Macromolecules and Complexes (POF3-551) |0 G:(DE-HGF)POF3-551 |c POF3-551 |f POF III |x 0 |
| 700 | 1 | _ | |a Guu, Donald |0 P:(DE-Juel1)141638 |b 1 |
| 700 | 1 | _ | |a Kirchenbüchler, Inka |0 P:(DE-Juel1)166077 |b 2 |
| 700 | 1 | _ | |a Koenderink, G. |0 P:(DE-HGF)0 |b 3 |
| 700 | 1 | _ | |a Kurniawan, N. |0 P:(DE-HGF)0 |b 4 |
| 909 | C | O | |o oai:juser.fz-juelich.de:279801 |p VDB |
| 910 | 1 | _ | |a Forschungszentrum Jülich GmbH |0 I:(DE-588b)5008462-8 |k FZJ |b 0 |6 P:(DE-Juel1)130797 |
| 910 | 1 | _ | |a Forschungszentrum Jülich GmbH |0 I:(DE-588b)5008462-8 |k FZJ |b 1 |6 P:(DE-Juel1)141638 |
| 910 | 1 | _ | |a Forschungszentrum Jülich GmbH |0 I:(DE-588b)5008462-8 |k FZJ |b 2 |6 P:(DE-Juel1)166077 |
| 913 | 1 | _ | |a DE-HGF |b Key Technologies |l BioSoft – Fundamentals for future Technologies in the fields of Soft Matter and Life Sciences |1 G:(DE-HGF)POF3-550 |0 G:(DE-HGF)POF3-551 |2 G:(DE-HGF)POF3-500 |v Functional Macromolecules and Complexes |x 0 |4 G:(DE-HGF)POF |3 G:(DE-HGF)POF3 |
| 914 | 1 | _ | |y 2015 |
| 915 | _ | _ | |a No Authors Fulltext |0 StatID:(DE-HGF)0550 |2 StatID |
| 920 | _ | _ | |l yes |
| 920 | 1 | _ | |0 I:(DE-Juel1)ICS-3-20110106 |k ICS-3 |l Weiche Materie |x 0 |
| 980 | _ | _ | |a conf |
| 980 | _ | _ | |a VDB |
| 980 | _ | _ | |a UNRESTRICTED |
| 980 | _ | _ | |a I:(DE-Juel1)ICS-3-20110106 |
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