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Single-walled carbon nanotube reptation dynamics in submicron sized pores from randomly packed mono-sized colloids

hal.structure.identifierRice University [Houston]
dc.contributor.authorTANG, Zhao
hal.structure.identifierRice University [Houston]
dc.contributor.authorEICHMANN, Shannon
hal.structure.identifierLaboratoire Photonique, Numérique et Nanosciences [LP2N]
dc.contributor.authorLOUNIS, Brahim
hal.structure.identifierLaboratoire Photonique, Numérique et Nanosciences [LP2N]
dc.contributor.authorCOGNET, Laurent
hal.structure.identifierRice University [Houston]
dc.contributor.authorMACKINTOSH, Frederick
hal.structure.identifierRice University [Houston]
dc.contributor.authorPASQUALI, Matteo
dc.date.accessioned2023-05-12T10:31:02Z
dc.date.available2023-05-12T10:31:02Z
dc.date.issued2022-07-27
dc.identifier.issn1744-683X
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/181399
dc.description.abstractEnStudying Brownian motion of fibers and semi-flexible filaments in porous media is key to understanding transport and mechanical properties in a variety of systems. Motion of semi-flexible filaments in gel-like porous media including polymer networks and cell cytoskeleton have been studied theoretically and experimentally, whereas the motion of these materials in packed-colloid porous media, advanced foams, and rock-like systems have not been thoroughly studied. Here we use video microscopy to directly visualize the reptation and transport of intrinsically fluorescent, semiflexible, semiconducting single-walled carbon nanotubes (SWCNT) in the sub-micron pores of packed colloids as fixed obstacles of packed-colloid porous media. By visualizing filament motion and Brownian diffusion at different locations in the pore structures, we study how the properties of the environment, like pore shape and pore structure of the porous media, affect SWCNT mobility. These results show that the porous media structure controls SWCNT reorientation during Brownian diffusion. In packed-colloid pores, SWCNTs diffuse along straight pores and bend across pores; conversely, in gel pores, SWCNTs consistently diffuse in curved pores, displaying faster parallel motion. In both gel and packed-colloid porous media, SWCNT finite stiffness enhances SWCNT rotational diffusion and prevents jamming, allowing for inter-pore diffusion.
dc.language.isoen
dc.publisherRoyal Society of Chemistry
dc.title.enSingle-walled carbon nanotube reptation dynamics in submicron sized pores from randomly packed mono-sized colloids
dc.typeArticle de revue
dc.identifier.doi10.1039/D2SM00305H
dc.subject.halPhysique [physics]/Physique [physics]/Biophysique [physics.bio-ph]
bordeaux.journalSoft Matter
bordeaux.page5509-5517
bordeaux.volume18
bordeaux.hal.laboratoriesLaboratoire Photonique, Numérique et Nanosciences (LP2N) - UMR 5298*
bordeaux.issue29
bordeaux.institutionUniversité de Bordeaux
bordeaux.institutionCNRS
bordeaux.peerReviewedoui
hal.identifierhal-03853218
hal.version1
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-03853218v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Soft%20Matter&rft.date=2022-07-27&rft.volume=18&rft.issue=29&rft.spage=5509-5517&rft.epage=5509-5517&rft.eissn=1744-683X&rft.issn=1744-683X&rft.au=TANG,%20Zhao&EICHMANN,%20Shannon&LOUNIS,%20Brahim&COGNET,%20Laurent&MACKINTOSH,%20Frederick&rft.genre=article


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