Effect of molecular architecture on ring polymer dynamics in semidilute linear polymer solutions

Yuecheng Zhou; Kai Wen Hsiao; Kathryn E. Regan; Dejie Kong; Gregory B. McKenna; Rae M. Robertson-Anderson; Charles M. Schroeder

doi:10.1038/s41467-019-09627-7

Effect of molecular architecture on ring polymer dynamics in semidilute linear polymer solutions

Yuecheng Zhou, Kai Wen Hsiao, Kathryn E. Regan, Dejie Kong, Gregory B. McKenna, Rae M. Robertson-Anderson, Charles M. Schroeder

Research output: Contribution to journal › Article › peer-review

Abstract

Understanding the dynamics of ring polymers is a particularly challenging yet interesting problem in soft materials. Despite recent progress, a complete understanding of the nonequilibrium behavior of ring polymers has not yet been achieved. In this work, we directly observe the flow dynamics of DNA-based rings in semidilute linear polymer solutions using single molecule techniques. Our results reveal strikingly large conformational fluctuations of rings in extensional flow long after the initial transient stretching process has terminated, which is observed even at extremely low concentrations (0.025 c ^* ) of linear polymers in the background solution. The magnitudes and characteristic timescales of ring conformational fluctuations are determined as functions of flow strength and polymer concentration. Our results suggest that ring conformational fluctuations arise due to transient threading of linear polymers through open ring chains stretching in flow.

Original language	English (US)
Article number	1753
Journal	Nature communications
Volume	10
Issue number	1
DOIs	https://doi.org/10.1038/s41467-019-09627-7
State	Published - Dec 1 2019

ASJC Scopus subject areas

Chemistry(all)
Biochemistry, Genetics and Molecular Biology(all)
Physics and Astronomy(all)

Online availability

10.1038/s41467-019-09627-7

Library availability

Discover UIUC Full Text

Cite this

@article{0225424ed3a3449eaef070a3fa18d7c3,

title = "Effect of molecular architecture on ring polymer dynamics in semidilute linear polymer solutions",

abstract = " Understanding the dynamics of ring polymers is a particularly challenging yet interesting problem in soft materials. Despite recent progress, a complete understanding of the nonequilibrium behavior of ring polymers has not yet been achieved. In this work, we directly observe the flow dynamics of DNA-based rings in semidilute linear polymer solutions using single molecule techniques. Our results reveal strikingly large conformational fluctuations of rings in extensional flow long after the initial transient stretching process has terminated, which is observed even at extremely low concentrations (0.025 c * ) of linear polymers in the background solution. The magnitudes and characteristic timescales of ring conformational fluctuations are determined as functions of flow strength and polymer concentration. Our results suggest that ring conformational fluctuations arise due to transient threading of linear polymers through open ring chains stretching in flow.",

author = "Yuecheng Zhou and Hsiao, {Kai Wen} and Regan, {Kathryn E.} and Dejie Kong and McKenna, {Gregory B.} and Robertson-Anderson, {Rae M.} and Schroeder, {Charles M.}",

note = "Funding Information: We thank Wei Ge for help with data analysis. This research was supported by the National Science Foundation (NSF) Award CBET-1604038 (Y.Z. and C.M.S.) and partially supported by the NSF through the University of Illinois at Urbana-Champaign Materials Research Science and Engineering Center (MRSEC) DMR-1720633 (Y.Z. and C.M.S.), a PPG-MRL graduate research assistantship award (Y.Z.), NSF Award CBET-1603925 (K.E.R. and R.M.R-A.), and NSF Award CBET-1603943 (D.K. and G.B.M.). G.B.M. and D.K. thank Dr. Michael San Francisco for his enthusiastic support and use of his biology lab facilities. Publisher Copyright: {\textcopyright} 2019, The Author(s).",

year = "2019",

month = dec,

day = "1",

doi = "10.1038/s41467-019-09627-7",

language = "English (US)",

volume = "10",

journal = "Nature communications",

issn = "2041-1723",

publisher = "Nature Publishing Group",

number = "1",

}

TY - JOUR

T1 - Effect of molecular architecture on ring polymer dynamics in semidilute linear polymer solutions

AU - Zhou, Yuecheng

AU - Hsiao, Kai Wen

AU - Regan, Kathryn E.

AU - Kong, Dejie

AU - McKenna, Gregory B.

AU - Robertson-Anderson, Rae M.

AU - Schroeder, Charles M.

N1 - Funding Information: We thank Wei Ge for help with data analysis. This research was supported by the National Science Foundation (NSF) Award CBET-1604038 (Y.Z. and C.M.S.) and partially supported by the NSF through the University of Illinois at Urbana-Champaign Materials Research Science and Engineering Center (MRSEC) DMR-1720633 (Y.Z. and C.M.S.), a PPG-MRL graduate research assistantship award (Y.Z.), NSF Award CBET-1603925 (K.E.R. and R.M.R-A.), and NSF Award CBET-1603943 (D.K. and G.B.M.). G.B.M. and D.K. thank Dr. Michael San Francisco for his enthusiastic support and use of his biology lab facilities. Publisher Copyright: © 2019, The Author(s).

PY - 2019/12/1

Y1 - 2019/12/1

N2 - Understanding the dynamics of ring polymers is a particularly challenging yet interesting problem in soft materials. Despite recent progress, a complete understanding of the nonequilibrium behavior of ring polymers has not yet been achieved. In this work, we directly observe the flow dynamics of DNA-based rings in semidilute linear polymer solutions using single molecule techniques. Our results reveal strikingly large conformational fluctuations of rings in extensional flow long after the initial transient stretching process has terminated, which is observed even at extremely low concentrations (0.025 c * ) of linear polymers in the background solution. The magnitudes and characteristic timescales of ring conformational fluctuations are determined as functions of flow strength and polymer concentration. Our results suggest that ring conformational fluctuations arise due to transient threading of linear polymers through open ring chains stretching in flow.

AB - Understanding the dynamics of ring polymers is a particularly challenging yet interesting problem in soft materials. Despite recent progress, a complete understanding of the nonequilibrium behavior of ring polymers has not yet been achieved. In this work, we directly observe the flow dynamics of DNA-based rings in semidilute linear polymer solutions using single molecule techniques. Our results reveal strikingly large conformational fluctuations of rings in extensional flow long after the initial transient stretching process has terminated, which is observed even at extremely low concentrations (0.025 c * ) of linear polymers in the background solution. The magnitudes and characteristic timescales of ring conformational fluctuations are determined as functions of flow strength and polymer concentration. Our results suggest that ring conformational fluctuations arise due to transient threading of linear polymers through open ring chains stretching in flow.

UR - http://www.scopus.com/inward/record.url?scp=85064439270&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85064439270&partnerID=8YFLogxK

U2 - 10.1038/s41467-019-09627-7

DO - 10.1038/s41467-019-09627-7

M3 - Article

C2 - 30988290

AN - SCOPUS:85064439270

SN - 2041-1723

VL - 10

JO - Nature communications

JF - Nature communications

IS - 1

M1 - 1753

ER -

Effect of molecular architecture on ring polymer dynamics in semidilute linear polymer solutions

Abstract

ASJC Scopus subject areas

Online availability

Library availability

Related links

Fingerprint

Cite this