dc.contributor.author
Radtke, Matthias
dc.contributor.author
Netz, Roland
dc.date.accessioned
2018-06-08T03:04:49Z
dc.date.available
2016-03-10T08:57:45.208Z
dc.identifier.uri
https://refubium.fu-berlin.de/handle/fub188/14470
dc.identifier.uri
http://dx.doi.org/10.17169/refubium-18662
dc.description.abstract
The adsorption of a single collapsed homopolymer onto a planar smooth surface
in shear flow is investigated by means of Brownian hydrodynamics simulation.
While cohesive intra-polymer forces are modeled by Lennard-Jones potentials,
surface-monomer interactions are described by stochastic bonds whose two-state
kinetics is characterized by three parameters: bond formation rate, bond
dissociation rate and an effective catch bond parameter that describes how the
force acting on a surface-monomer bond influences the dissociation rate. We
construct adsorption state diagrams as a function of shear rate and all three
surface-monomer bond parameters. We find shear-induced adsorption in a small
range of parameters for low dissociation and association rates and only when
the surface-monomer bond is near the transition between slip and catch bond
behavior. By mapping on a simple surface-monomer interaction model with
conservative pair potentials we try to estimate the conservative potential
parameters necessary to observe shear-induced surface adsorption phenomena.
en
dc.rights.uri
http://www.epj.org/index.php?option=com_content&view=article&id=360&Itemid=389&lang=en#traditional
dc.subject
Polymers and Polyelectrolytes
dc.subject.ddc
500 Naturwissenschaften und Mathematik::530 Physik
dc.title
Shear-enhanced adsorption of a homopolymeric globule mediated by surface catch
bonds
dc.type
Wissenschaftlicher Artikel
dcterms.bibliographicCitation
The European Physical Journal E. - 38 (2015), 6, Artikel Nr. 69
dc.identifier.sepid
46205
dcterms.bibliographicCitation.doi
10.1140/epje/i2015-15069-4
dcterms.bibliographicCitation.url
http://dx.doi.org/10.1140/epje/i2015-15069-4
refubium.affiliation
Physik
de
refubium.affiliation.other
Institut für Theoretische Physik
refubium.mycore.fudocsId
FUDOCS_document_000000024105
refubium.resourceType.isindependentpub
no
refubium.mycore.derivateId
FUDOCS_derivate_000000006083
dcterms.accessRights.openaire
open access
dcterms.isPartOf.issn
1292-8941