Out-of-equilibrium dynamics in driven and active magnetic colloids
In this thesis we investigate the structure formation and the out-of-equilibrium dynamics of driven and active magnetic colloids. The interactions in our system were tuned in situ by using external fields, with the aim of finding novel approaches to drive and engineer these microparticles into a ric...
| Autor: | |
|---|---|
| Tipo de recurso: | tesis doctoral |
| Estado: | Versión publicada |
| Fecha de publicación: | 2019 |
| País: | España |
| Institución: | CBUC, CESCA |
| Repositorio: | TDR. Tesis Doctorales en Red |
| OAI Identifier: | oai:www.tdx.cat:10803/668374 |
| Acceso en línea: | http://hdl.handle.net/10803/668374 |
| Access Level: | acceso abierto |
| Palabra clave: | Matèria condensada tova Materia condensada blanda Soft condensed matter Col·loides Coloides Colloids Magnetisme Magnetismo Magnetism Ciències Experimentals i Matemàtiques 53 |
| id |
ES_a5547deece0fe056b652ec623c3460f2 |
|---|---|
| oai_identifier_str |
oai:www.tdx.cat:10803/668374 |
| network_acronym_str |
ES |
| network_name_str |
España |
| repository_id_str |
|
| spelling |
Out-of-equilibrium dynamics in driven and active magnetic colloidsMassana-Cid, HelenaMatèria condensada tovaMateria condensada blandaSoft condensed matterCol·loidesColoidesColloidsMagnetismeMagnetismoMagnetismCiències Experimentals i Matemàtiques53In this thesis we investigate the structure formation and the out-of-equilibrium dynamics of driven and active magnetic colloids. The interactions in our system were tuned in situ by using external fields, with the aim of finding novel approaches to drive and engineer these microparticles into a rich variety of microstructures. The colloids formed chains and clusters able to transport cargos, space-filling gels and self-healing crystals. Moreover, we demonstrated the bidirectional transport of paramagnetic particles on top of a structured magnetic substrate. Because of their associated length-scale, colloids are experimentally accessible with traditional optical microscope techniques. We analysed the data extracted from digital video microscopy and used such information to infer the particle dynamics. Colloids have been proven to be excellent model systems for structures across different length scales that are more difficult to observe, such as collections of atoms and molecules. Furthermore, they are helpful test-beds to investigate fluid dynamics at low Reynolds number and can form artificial micromachines that are essential for the realization of disparate functional tasks at the microscale.En aquesta tesi hem investigat la dinàmica fora de l'equilibri de col·loides magnètics i el seu comportament individual i col·lectiu. Controlant les interaccions utilitzant camps magnètics externs i l'activitat química de col·loides especialment sintetitzats, vam construir microdispositius nedadors capaços de transportar altres materials i formar cadenes, agrupacions, gels, i cristalls amb l'habilitat de reordenar-se. A més, vam demostrar el transport bidireccional de partícules paramagnètiques sobre un substrat magnètic. A causa de la seva mida, els col·loides són fàcilment accessibles experimentalment i es poden observar amb microscopis òptics tradicionals. Mitjançant tècniques de videomicroscopia, vam obtenir informació sobre la dinàmica fora d'equilibri dels sistemes estudiats. S'ha demostrat que els col·loides poden ser sistemes model excel·lents per estructures amb diferents escales de longitud que són més difícils d’observar. D'altra banda, els col·loides ens van ajudar a comprendre la dinàmica de fluids a baix nombre de Reynolds, el que té aplicacions en estudis de microfluídica. Aquest treball és un pas més que ens acosta a trobar un microdispositiu òptim basat en partícules col·loïdals per manipular, transportar i controlar processos a aquestes escales.Universitat de BarcelonaTierno, PietroPlanes Vila, AntoniUniversitat de Barcelona. Departament de Física de la Matèria Condensada202020202019info:eu-repo/semantics/doctoralThesisinfo:eu-repo/semantics/publishedVersion185 p.application/pdfapplication/pdfhttp://hdl.handle.net/10803/668374TDX (Tesis Doctorals en Xarxa)reponame:TDR. Tesis Doctorales en Redinstname:CBUC, CESCAInglésL'accés als continguts d'aquesta tesi queda condicionat a l'acceptació de les condicions d'ús establertes per la següent llicència Creative Commons: http://creativecommons.org/licenses/by-nc/4.0/http://creativecommons.org/licenses/by-nc/4.0/info:eu-repo/semantics/openAccessoai:www.tdx.cat:10803/6683742026-06-14T12:46:07Z |
| dc.title.none.fl_str_mv |
Out-of-equilibrium dynamics in driven and active magnetic colloids |
| title |
Out-of-equilibrium dynamics in driven and active magnetic colloids |
| spellingShingle |
Out-of-equilibrium dynamics in driven and active magnetic colloids Massana-Cid, Helena Matèria condensada tova Materia condensada blanda Soft condensed matter Col·loides Coloides Colloids Magnetisme Magnetismo Magnetism Ciències Experimentals i Matemàtiques 53 |
| title_short |
Out-of-equilibrium dynamics in driven and active magnetic colloids |
| title_full |
Out-of-equilibrium dynamics in driven and active magnetic colloids |
| title_fullStr |
Out-of-equilibrium dynamics in driven and active magnetic colloids |
| title_full_unstemmed |
Out-of-equilibrium dynamics in driven and active magnetic colloids |
| title_sort |
Out-of-equilibrium dynamics in driven and active magnetic colloids |
| dc.creator.none.fl_str_mv |
Massana-Cid, Helena |
| author |
Massana-Cid, Helena |
| author_facet |
Massana-Cid, Helena |
| author_role |
author |
| dc.contributor.none.fl_str_mv |
Tierno, Pietro Planes Vila, Antoni Universitat de Barcelona. Departament de Física de la Matèria Condensada |
| dc.subject.none.fl_str_mv |
Matèria condensada tova Materia condensada blanda Soft condensed matter Col·loides Coloides Colloids Magnetisme Magnetismo Magnetism Ciències Experimentals i Matemàtiques 53 |
| topic |
Matèria condensada tova Materia condensada blanda Soft condensed matter Col·loides Coloides Colloids Magnetisme Magnetismo Magnetism Ciències Experimentals i Matemàtiques 53 |
| description |
In this thesis we investigate the structure formation and the out-of-equilibrium dynamics of driven and active magnetic colloids. The interactions in our system were tuned in situ by using external fields, with the aim of finding novel approaches to drive and engineer these microparticles into a rich variety of microstructures. The colloids formed chains and clusters able to transport cargos, space-filling gels and self-healing crystals. Moreover, we demonstrated the bidirectional transport of paramagnetic particles on top of a structured magnetic substrate. Because of their associated length-scale, colloids are experimentally accessible with traditional optical microscope techniques. We analysed the data extracted from digital video microscopy and used such information to infer the particle dynamics. Colloids have been proven to be excellent model systems for structures across different length scales that are more difficult to observe, such as collections of atoms and molecules. Furthermore, they are helpful test-beds to investigate fluid dynamics at low Reynolds number and can form artificial micromachines that are essential for the realization of disparate functional tasks at the microscale. |
| publishDate |
2019 |
| dc.date.none.fl_str_mv |
2019 2020 2020 |
| dc.type.none.fl_str_mv |
info:eu-repo/semantics/doctoralThesis info:eu-repo/semantics/publishedVersion |
| format |
doctoralThesis |
| status_str |
publishedVersion |
| dc.identifier.none.fl_str_mv |
http://hdl.handle.net/10803/668374 |
| url |
http://hdl.handle.net/10803/668374 |
| dc.language.none.fl_str_mv |
Inglés |
| language_invalid_str_mv |
Inglés |
| dc.rights.none.fl_str_mv |
http://creativecommons.org/licenses/by-nc/4.0/ info:eu-repo/semantics/openAccess |
| rights_invalid_str_mv |
http://creativecommons.org/licenses/by-nc/4.0/ |
| eu_rights_str_mv |
openAccess |
| dc.format.none.fl_str_mv |
185 p. application/pdf application/pdf |
| dc.publisher.none.fl_str_mv |
Universitat de Barcelona |
| publisher.none.fl_str_mv |
Universitat de Barcelona |
| dc.source.none.fl_str_mv |
TDX (Tesis Doctorals en Xarxa) reponame:TDR. Tesis Doctorales en Red instname:CBUC, CESCA |
| instname_str |
CBUC, CESCA |
| reponame_str |
TDR. Tesis Doctorales en Red |
| collection |
TDR. Tesis Doctorales en Red |
| repository.name.fl_str_mv |
|
| repository.mail.fl_str_mv |
|
| _version_ |
1869415606432825344 |
| score |
15,198674 |