Constraint Release for Reptating Filaments in Semiflexible Networks Depends on Background Fluctuations
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Peter Debye Institute for Soft Matter Physics, University of Leipzig, Linnéstraße 5, 04103 Leipzig, Germany
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Fraunhofer Institute for Cell Therapy and Immunology, Perlickstraße 1, 04103 Leipzig, Germany
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Institute of Clinical Immunology, University of Leipzig Medical Faculty, 04103 Leipzig, Germany
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Dhirubhai Ambani Institute of Information and Communication Technology, Gandhinagar 382 007, India
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Unconventional Computing Laboratory, Department of Computer Science, University of the West of England, Bristol BS16 1QY, UK
*
Author to whom correspondence should be addressed.
Academic Editors: Martin Kröger and Panayotis Benetatos
Polymers 2022, 14(4), 707; https://doi.org/10.3390/polym14040707
Received: 31 December 2021
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Revised: 6 February 2022
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Accepted: 7 February 2022
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Published: 12 February 2022
(This article belongs to the Special Issue Semiflexible Polymers II)
Entangled semiflexible polymer networks are usually described by the tube model, although this concept has not been able to explain all experimental observations. One of its major shortcomings is neglecting the thermal fluctuations of the polymers surrounding the examined test filament, such that disentanglement effects are not captured. In this study, we present experimental evidence that correlated constraint release which has been predicted theoretically occurs in entangled, but not in crosslinked semiflexible polymer networks. By tracking single semiflexible DNA nanotubes embedded both in entangled and crosslinked F-actin networks, we observed different reptation dynamics in both systems, emphasizing the need for a revision of the classical tube theory for entangled polymer solutions.
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Keywords:
polymer network; constraint release; reptation; semiflexible polymer
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MDPI and ACS Style
Händler, T.; Tutmarc, C.; Freitag, J.S.; Smith, D.M.; Schnauß, J. Constraint Release for Reptating Filaments in Semiflexible Networks Depends on Background Fluctuations. Polymers 2022, 14, 707. https://doi.org/10.3390/polym14040707
AMA Style
Händler T, Tutmarc C, Freitag JS, Smith DM, Schnauß J. Constraint Release for Reptating Filaments in Semiflexible Networks Depends on Background Fluctuations. Polymers. 2022; 14(4):707. https://doi.org/10.3390/polym14040707
Chicago/Turabian StyleHändler, Tina, Cary Tutmarc, Jessica S. Freitag, David M. Smith, and Jörg Schnauß. 2022. "Constraint Release for Reptating Filaments in Semiflexible Networks Depends on Background Fluctuations" Polymers 14, no. 4: 707. https://doi.org/10.3390/polym14040707
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