About: Complex Tracer Diffusion Dynamics in Polymer Solutions

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
rdfs:seeAlso	http://dx.doi.org/10.1103/PhysRevLett.111.088301
Description	We employ fluorescence correlation spectroscopy (FCS) and coarse-grained molecular dynamics simulations to study the mobility of tracers in polymer solutions. Excluded volume interactions result in crowding-induced slowdown, depending only on the polymer concentration. With specific tracer-polymer attractions, the tracer is slowed down at much lower concentrations, and a second diffusion component appears that is sensitive to the polymer chain length. The two components can be resolved by FCS, only if the distance traveled by the tracer in the polymer-bound state is greater than the FCS focal spot size. The tracer dynamics can be used as a sensitive probe of the nature and strength of interactions, which-despite their local character-emphasize the role of chain connectivity. We employ fluorescence correlation spectroscopy (FCS) and coarse-grained molecular dynamics simulations to study the mobility of tracers in polymer solutions. Excluded volume interactions result in crowding-induced slowdown, depending only on the polymer concentration. With specific tracer-polymer attractions, the tracer is slowed down at much lower concentrations, and a second diffusion component appears that is sensitive to the polymer chain length. The two components can be resolved by FCS, only if the distance traveled by the tracer in the polymer-bound state is greater than the FCS focal spot size. The tracer dynamics can be used as a sensitive probe of the nature and strength of interactions, which-despite their local character-emphasize the role of chain connectivity. (en)
Title	Complex Tracer Diffusion Dynamics in Polymer Solutions Complex Tracer Diffusion Dynamics in Polymer Solutions (en)
skos:prefLabel	Complex Tracer Diffusion Dynamics in Polymer Solutions Complex Tracer Diffusion Dynamics in Polymer Solutions (en)
skos:notation	RIV/00216208:11310/13:10144190!RIV14-MSM-11310___
http://linked.open...avai/predkladatel	Přírodovědecká fakulta
http://linked.open...avai/riv/aktivita	I P
http://linked.open...avai/riv/aktivity	I, P(LK21302)
http://linked.open...iv/cisloPeriodika	8
http://linked.open...vai/riv/dodaniDat	2014
http://linked.open...aciTvurceVysledku	Košovan, Peter
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Univerzita Karlova v Praze / Přírodovědecká fakulta
http://linked.open...dnocenehoVysledku	66460
http://linked.open...ai/riv/idVysledku	RIV/00216208:11310/13:10144190
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	dna; cells; protein; binding; simulation; qualitative model; biological interpretation; transient anomalous subdiffusion; fluorescence correlation spectroscopy (en)
http://linked.open.../riv/klicoveSlovo	biological interpretation transient anomalous subdiffusion protein simulation dna qualitative model cells binding fluorescence correlation spectroscopy
http://linked.open...odStatuVydavatele	GB - Spojené království Velké Británie a Severního Irska
http://linked.open...ontrolniKodProRIV	[E93083C3888C]
http://linked.open...i/riv/nazevZdroje	Physical Review Letters
http://linked.open...in/vavai/riv/obor	CD
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	9 (xsd:int)
http://linked.open...vavai/riv/projekt	Interactions and dynamics in polymer nanostructures
http://linked.open...UplatneniVysledku	2013
http://linked.open...v/svazekPeriodika	111
http://linked.open...iv/tvurceVysledku	Košovan, Peter Koynov, Kaloian Butt, Hans-Juergen Fytas, George Holm, Christian Jonas, Ulrich Lenz, Olaf Raccis, Riccardo Vagias, Apostolos
http://linked.open...ain/vavai/riv/wos	000323427600009
issn	0031-9007
number of pages	5 (xsd:int)
http://bibframe.org/vocab/doi	10.1103/PhysRevLett.111.088301
http://localhost/t...ganizacniJednotka	11310

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