KOPS - The Institutional Repository of the University of Konstanz

Rheology of F-actin solutions determinated from thermally driven tracer motion

Aufgrund von Vorbereitungen auf eine neue Version von KOPS, können kommenden Montag und Dienstag keine Publikationen eingereicht werden. (Due to preparations for a new version of KOPS, no publications can be submitted next Monday and Tuesday.)

Rheology of F-actin solutions determinated from thermally driven tracer motion

Cite This

Files in this item

Checksum: MD5:309e8eb60710e658af227c59072e4016

MASON, Thomas G., Thomas GISLER, David A. WEITZ, Klaus KROY, Erwin FREY, 2000. Rheology of F-actin solutions determinated from thermally driven tracer motion. In: Journal of Rheology. 44(4), pp. 917-928. Available under: doi: 10.1122/1.551113

@article{Mason2000Rheol-9413, title={Rheology of F-actin solutions determinated from thermally driven tracer motion}, year={2000}, doi={10.1122/1.551113}, number={4}, volume={44}, journal={Journal of Rheology}, pages={917--928}, author={Mason, Thomas G. and Gisler, Thomas and Weitz, David A. and Kroy, Klaus and Frey, Erwin} }

<rdf:RDF xmlns:dcterms="http://purl.org/dc/terms/" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:bibo="http://purl.org/ontology/bibo/" xmlns:dspace="http://digital-repositories.org/ontologies/dspace/0.1.0#" xmlns:foaf="http://xmlns.com/foaf/0.1/" xmlns:void="http://rdfs.org/ns/void#" xmlns:xsd="http://www.w3.org/2001/XMLSchema#" > <rdf:Description rdf:about="https://kops.uni-konstanz.de/rdf/resource/123456789/9413"> <dc:contributor>Weitz, David A.</dc:contributor> <dc:rights>Attribution-NonCommercial-NoDerivs 2.0 Generic</dc:rights> <dspace:hasBitstream rdf:resource="https://kops.uni-konstanz.de/bitstream/123456789/9413/1/Gisler_Rheology_of_F_actin_solutions.pdf"/> <dc:creator>Gisler, Thomas</dc:creator> <dcterms:abstract xml:lang="eng">We report measurements of the frequency-dependent complex shear modulus of semidilute F-actin solutions based on optical observations of the thermally excited motion of monodisperse tracer microspheres. Because the tracer spheres cause incident laser light to be strongly scattered, we determine their average motion using diffusing wave spectroscopy. From the measured mean square displacement, we extract the retardation spectrum of the actin solution using a regularized fit based on a discretized model involving a linear superposition of harmonically bound Brownian particles. At an actin concentration of C = 1.2 mg/ml and for microspheres of radius a = 0.8 μm, we find that the complex modulus exhibits a dominant low frequency plateau modulus and a high frequency rise with the loss modulus dominating above a crossover frequency. Over a limited range of frequencies well above the crossover frequency, the magnitude of the high frequency storage modulus G'(w) is consistent with the power law scaling w¾. The observed gradual crossover appears to be at odds with previous theoretical predictions, but it corresponds to a simple structure of the retardation spectrum.</dcterms:abstract> <dc:contributor>Kroy, Klaus</dc:contributor> <dcterms:bibliographicCitation>First publ. in: Journal of Rheology 44 (2000), 4, pp. 917-928</dcterms:bibliographicCitation> <dc:creator>Mason, Thomas G.</dc:creator> <dcterms:hasPart rdf:resource="https://kops.uni-konstanz.de/bitstream/123456789/9413/1/Gisler_Rheology_of_F_actin_solutions.pdf"/> <dc:creator>Kroy, Klaus</dc:creator> <void:sparqlEndpoint rdf:resource="http://localhost/fuseki/dspace/sparql"/> <dc:contributor>Gisler, Thomas</dc:contributor> <dcterms:rights rdf:resource="http://creativecommons.org/licenses/by-nc-nd/2.0/"/> <dspace:isPartOfCollection rdf:resource="https://kops.uni-konstanz.de/rdf/resource/123456789/41"/> <foaf:homepage rdf:resource="http://localhost:8080/jspui"/> <dc:date rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2011-03-24T17:56:18Z</dc:date> <dc:contributor>Mason, Thomas G.</dc:contributor> <dcterms:available rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2011-03-24T17:56:18Z</dcterms:available> <dc:format>application/pdf</dc:format> <bibo:uri rdf:resource="http://kops.uni-konstanz.de/handle/123456789/9413"/> <dc:contributor>Frey, Erwin</dc:contributor> <dcterms:isPartOf rdf:resource="https://kops.uni-konstanz.de/rdf/resource/123456789/41"/> <dcterms:issued>2000</dcterms:issued> <dc:creator>Frey, Erwin</dc:creator> <dc:language>eng</dc:language> <dc:creator>Weitz, David A.</dc:creator> <dcterms:title>Rheology of F-actin solutions determinated from thermally driven tracer motion</dcterms:title> </rdf:Description> </rdf:RDF>

Downloads since Oct 1, 2014 (Information about access statistics)

Gisler_Rheology_of_F_actin_solutions.pdf 466

This item appears in the following Collection(s)

Attribution-NonCommercial-NoDerivs 2.0 Generic Except where otherwise noted, this item's license is described as Attribution-NonCommercial-NoDerivs 2.0 Generic

Search KOPS


Browse

My Account