Threading of Unconcatenated Ring Polymers at High Concentrations: Double-Folded vs Time-Equilibrated Structures

ACS Macro Letters
Jan SmrekAngelo Rosa

Abstract

Unconcatenated ring polymers in concentrated solutions and melt are remarkably well described as double-folded conformations on randomly branched primitive trees. This picture though contrasts recent evidence for extensive intermingling between close-by rings in the form of long-lived topological constraints or threadings. Here, we employ the concept of ring minimal surface to quantify the extent of threadings in polymer solutions of the double-folded rings vs rings in equilibrated molecular dynamics computer simulations. Our results show that the double-folded ring polymers are significantly less threaded compared to their counterparts at equilibrium. Second, threadings form through a slow process whose characteristic time-scale is of the same order of magnitude as that of the diffusion of the rings in solution. These findings are robust, being based on universal (model-independent) observables as the average fraction of threaded length or the total penetrations between close-by rings and the corresponding distribution functions.

References

May 1, 1996·Physical Review. E, Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics·M MüllerM E Cates
Dec 15, 1986·Physical Review Letters·M Rubinstein
Aug 29, 1994·Physical Review Letters·S P ObukhovT Duke
Nov 23, 2000·Physical Review. E, Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics·M MullerM E Cates
Feb 7, 2004·Science·Ralf EveraersKurt Kremer
Feb 6, 2008·The Journal of Chemical Physics·Nariya UchidaRalf Everaers
Aug 30, 2008·PLoS Computational Biology·Angelo Rosa, Ralf Everaers
Oct 28, 2008·Nature Materials·M KapnistosM Rubinstein
Oct 17, 2009·The Journal of Chemical Physics·Jiro SuzukiYushu Matsushita
May 24, 2011·Physical Review Letters·Takahiro Sakaue
Jun 7, 2011·The Journal of Chemical Physics·Jonathan D HalversonKurt Kremer
Jun 7, 2011·The Journal of Chemical Physics·Jonathan D HalversonKurt Kremer
Mar 29, 2014·Soft Matter·Ana R BrásDieter Richter
Apr 8, 2014·Physical Review Letters·Angelo Rosa, Ralf Everaers
Oct 31, 2014·Soft Matter·Arturo NarrosBarbara Capone
Nov 2, 2014·Physical Review Letters·S GooßenD Richter
Jan 8, 2015·Journal of Physics. Condensed Matter : an Institute of Physics Journal·Jan Smrek, Alexander Y Grosberg
Apr 18, 2015·Macromolecular Rapid Communications·Eunsang LeeYounJoon Jung
Apr 12, 2016·Macromolecules·Sebastian GooßenDimitris Vlassopoulos
Apr 28, 2016·Proceedings of the National Academy of Sciences of the United States of America·Davide Michieletto, Matthew S Turner
Oct 27, 2016·Soft Matter·D Michieletto
Dec 9, 2017·Physical Review Letters·Davide MichielettoAngelo Rosa
Aug 8, 2017·Polymers·Davide MichielettoMatthew S Turner

❮ Previous
Next ❯

Citations

Nov 28, 2019·Soft Matter·Karthik R PeddireddyRae M Robertson-Anderson
Oct 1, 2020·Soft Matter·Yuya DoiYushu Matsushita
Jan 9, 2020·Nature Communications·Jan SmrekKurt Kremer
Feb 1, 2020·Physical Review Letters·Thomas C O'ConnorGary S Grest
Apr 9, 2021·ACS Macro Letters·Angelo RosaDavide Michieletto
May 14, 2021·Science Advances·Jan SmrekDavide Michieletto
Sep 4, 2021·Physical Review Letters·Cristian MichelettiPietro Faccioli

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.

Related Papers

Proceedings of the National Academy of Sciences of the United States of America
Davide Michieletto, Matthew S Turner
Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics
S BrownG Szamel
The European Physical Journal. E, Soft Matter
Angelo Rosa, Ralf Everaers
© 2022 Meta ULC. All rights reserved