Confining Potential as a Function of Polymer Stiffness and Concentration in Entangled Polymer Solutions

The Journal of Physical Chemistry. B
Masoumeh KeshavarzAlan E Rowan

Abstract

We directly track the tubelike motion of individual fluorescently labeled polymer molecules in a concentrated solution of unlabeled polymers. We use a single molecule wide-field fluorescence microscopy technique that is able to determine characteristic properties of the polymer dynamics, such as the confining potential, the tube diameter, and the Rouse time. The use of synthetic polymers allows us to investigate the confined motion of the polymer chains not only as a function of polymer concentration (mesh size) but also versus the persistence length of the matrix polymers. Although the polymers used have a persistence length much smaller than their contour length, our experimental results lead to a dependence of the tube diameter on both the mesh size and the persistence length, which follows the theoretically predicted relation for semiflexible chains.

References

Nov 27, 1995·Physical Review Letters·D E SmithS Chu
Apr 20, 2001·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·D C Morse
Jul 28, 2001·Science·J J CornelissenR J Nolte
Dec 18, 2002·Physical Review Letters·Loïc Le GoffFrançois Amblard
May 29, 2003·Journal of the American Chemical Society·Sergei S SheikoKrzysztof Matyjaszewski
Nov 5, 2004·Physical Review Letters·M L GardelD A Weitz
Apr 14, 2006·The Journal of Physical Chemistry. B·Pieter A J De WitteAlan E Rowan
Aug 7, 2007·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·Heiko ZettlMatthias Ballauff
Sep 4, 2007·The European Physical Journal. E, Soft Matter·H HinschE Frey
Oct 13, 2009·Chemphyschem : a European Journal of Chemical Physics and Physical Chemistry·Hauke Hinsch, Erwin Frey
Apr 7, 2010·Physical Review Letters·Bo WangSteve Granick
Apr 27, 2010·Chemical Society Reviews·Erik SchwartzAlan E Rowan
Sep 28, 2010·Physical Review Letters·J GlaserM Giesen
Jan 6, 2011·Science·Nikta FakhriMatteo Pasquali
Jul 5, 2013·The Journal of Chemical Physics·Rati Sharma, Binny J Cherayil
Nov 10, 2015·Physical Review Letters·Sebastian GooßenDieter Richter
Nov 13, 2015·Journal of Physics. Condensed Matter : an Institute of Physics Journal·F SnijkersD Vlassopoulos
Dec 22, 2015·ACS Nano·Masoumeh KeshavarzAlan E Rowan
Mar 22, 2016·Soft Matter·Jakub KubečkaPeter Košovan
Oct 16, 2016·Physical Review. E·Carsten SvaneborgRalf Everaers

❮ Previous
Next ❯

Citations

Jun 5, 2019·Soft Matter·Tom GoldeJörg Schnauß
Dec 7, 2018·Nature Communications·Maram AbadiSatoshi Habuchi
Nov 9, 2018·Langmuir : the ACS Journal of Surfaces and Colloids·Henry CoxJian R Lu

❮ 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.

© 2022 Meta ULC. All rights reserved