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dc.contributor.authorMagazzu, A.en_US
dc.contributor.authorCallegari, Agneseen_US
dc.contributor.authorStaforelli, J. P.en_US
dc.contributor.authorGambassi, A.en_US
dc.contributor.authorDietrich, S.en_US
dc.contributor.authorVolpe, Giovannien_US
dc.date.accessioned2020-02-17T06:54:57Z
dc.date.available2020-02-17T06:54:57Z
dc.date.issued2019-01
dc.identifier.urihttp://hdl.handle.net/11693/53380
dc.description.abstractCritical Casimir forces can play an important role for applications in nano-science and nano-technology, owing to their piconewton strength, nanometric action range, fine tunability as a function of temperature, and exquisite dependence on the surface properties of the involved objects. Here, we investigate the effects of critical Casimir forces on the free dynamics of a pair of colloidal particles dispersed in the bulk of a near-critical binary liquid solvent, using blinking optical tweezers. In particular, we measure the time evolution of the distance between the two colloids to determine their relative diffusion and drift velocity. Furthermore, we show how critical Casimir forces change the dynamic properties of this two-colloid system by studying the temperature dependence of the distribution of the so-called first-passage time, i.e., of the time necessary for the particles to reach for the first time a certain separation, starting from an initially assigned one. These data are in good agreement with theoretical results obtained from Monte Carlo simulations and Langevin dynamics.en_US
dc.language.isoEnglishen_US
dc.source.titleSoft Matteren_US
dc.relation.isversionofhttps://dx.doi.org/10.1039/c8sm01376den_US
dc.titleControlling the dynamics of colloidal particles by critical Casimir forcesen_US
dc.typeArticleen_US
dc.departmentDepartment of Physicsen_US
dc.departmentInstitute of Materials Science and Nanotechnology (UNAM)en_US
dc.citation.spage2152en_US
dc.citation.epage2162en_US
dc.citation.volumeNumber15en_US
dc.citation.issueNumber10en_US
dc.identifier.doi10.1039/c8sm01376den_US
dc.publisherRoyal Society of Chemistryen_US
dc.contributor.bilkentauthorCallegari, Agnese
dc.contributor.bilkentauthorVolpe, Giovanni
dc.identifier.eissn1744-6848


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