{"id":{"repo_id":"washington","oai_identifier":"oai:digital.lib.washington.edu:1773/26754"},"canonical_url":"https://search.dev.ndltd.org/etd/washington/oai:digital.lib.washington.edu:1773/26754","repository":{"repo_id":"washington","name":"University of Washington","base_url":"https://digital.lib.washington.edu/server/oai/request"},"display":{"title":"Microfluidics enhanced synthesis of micellar nanostructures","abstract":"Surfactant molecules can self-assemble into various morphologies under proper combinations of surfactant concentration, temperature, and flow conditions. In equilibrium, micelles can transition from entangled to branched structures with increasing ionic strength and temperature. Under flow conditions, micellar structure transition can follow different trajectories. In the present work, the structural and rheological evolution of both ionic and non-ionic micellar solutions are studied. When both ionic and non-ionic micellar solutions are subjected to strain rates ∼10^3 s−1 and strain ∼10^3, we observe the formation of stable flow-induced structured phases (FISPs), with entangled, branched, and multi-connected micellar bundles, evidenced by electron microscopy (cryo-EM, TEM, and SEM) and small-angle neutron scattering (SANS). The rheological properties of both ionic and non-ionic micellar solutions and their corresponding FISPs are obtained by using one point passive microrheology and two point passive microrheology. The rheological properties variation from the original micellar solutions to their corresponding FISPs is associated with the structural evolution from the precursor to FISPs. The formation of FISPs is correlated with local micellar gradients concentrations, hight stretching in the microposts arrays, entropic fluctuations, flow kinematics, and microspatial confinement. Finally, some potential sensing applications and nanotemplating uses of the FISPs are presented.","abstract_html":"Surfactant molecules can self-assemble into various morphologies under proper combinations of surfactant concentration, temperature, and flow conditions. In equilibrium, micelles can transition from entangled to branched structures with increasing ionic strength and temperature. Under flow conditions, micellar structure transition can follow different trajectories. In the present work, the structural and rheological evolution of both ionic and non-ionic micellar solutions are studied. When both ionic and non-ionic micellar solutions are subjected to strain rates ∼10^3 s−1 and strain ∼10^3, we observe the formation of stable flow-induced structured phases (FISPs), with entangled, branched, and multi-connected micellar bundles, evidenced by electron microscopy (cryo-EM, TEM, and SEM) and small-angle neutron scattering (SANS). The rheological properties of both ionic and non-ionic micellar solutions and their corresponding FISPs are obtained by using one point passive microrheology and two point passive microrheology. The rheological properties variation from the original micellar solutions to their corresponding FISPs is associated with the structural evolution from the precursor to FISPs. The formation of FISPs is correlated with local micellar gradients concentrations, hight stretching in the microposts arrays, entropic fluctuations, flow kinematics, and microspatial confinement. Finally, some potential sensing applications and nanotemplating uses of the FISPs are presented.","abstract_has_math":false,"creators":["Cardiel, Joshua Jeremy"],"institution":null,"degree_name":null,"degree_level":null,"degree_discipline":null,"degree_department":null,"school":null,"contributors":[],"advisors":["Shen, Shen Q"],"committee_chairs":[],"committee_members":[],"year":2014,"date_issued":"2014-10-20","date_published":"2014-10-20","updated_at":"2026-07-24T05:58:23Z","subjects":["cryo-EM; Micelles; Microfluidics; Rheology; SANS"],"languages":["en_US"],"rights":["Copyright is held by the individual authors."],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"http://hdl.handle.net/1773/26754","outbound_label":"Handle","outbound_source":"dc:identifier.uri"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor.advisor","label":"Advisor","values":["Shen, Shen Q"]},{"key":"dc:creator","label":"Author","values":["Cardiel, Joshua Jeremy"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date.accessioned","label":"Dc Date Accessioned","values":["2014-10-20T20:10:31Z"]},{"key":"dc:date.issued","label":"Date","values":["2014-10-20"]},{"key":"dc:type","label":"Dc Type","values":["Thesis"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["cryo-EM; Micelles; Microfluidics; Rheology; SANS"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language.iso","label":"Language (ISO)","values":["en_US"]},{"key":"dc:rights","label":"Dc Rights","values":["Copyright is held by the individual authors."]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier.other","label":"Dc Identifier Other","values":["Cardiel_washington_0250E_13376.pdf"]},{"key":"dc:identifier.uri","label":"Identifier URI","values":["http://hdl.handle.net/1773/26754"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["Thesis (Ph.D.)--University of Washington, 2014"]},{"key":"dc:description.abstract","label":"Abstract","values":["Surfactant molecules can self-assemble into various morphologies under proper combinations of surfactant concentration, temperature, and flow conditions. In equilibrium, micelles can transition from entangled to branched structures with increasing ionic strength and temperature. Under flow conditions, micellar structure transition can follow different trajectories. In the present work, the structural and rheological evolution of both ionic and non-ionic micellar solutions are studied. When both ionic and non-ionic micellar solutions are subjected to strain rates ∼10^3 s−1 and strain ∼10^3, we observe the formation of stable flow-induced structured phases (FISPs), with entangled, branched, and multi-connected micellar bundles, evidenced by electron microscopy (cryo-EM, TEM, and SEM) and small-angle neutron scattering (SANS). The rheological properties of both ionic and non-ionic micellar solutions and their corresponding FISPs are obtained by using one point passive microrheology and two point passive microrheology. The rheological properties variation from the original micellar solutions to their corresponding FISPs is associated with the structural evolution from the precursor to FISPs. The formation of FISPs is correlated with local micellar gradients concentrations, hight stretching in the microposts arrays, entropic fluctuations, flow kinematics, and microspatial confinement. Finally, some potential sensing applications and nanotemplating uses of the FISPs are presented."]},{"key":"dc:format.mimetype","label":"Dc Format Mimetype","values":["application/pdf"]},{"key":"dc:title","label":"Title","values":["Microfluidics enhanced synthesis of micellar nanostructures"]}]}],"canonical_facts":{"dc:contributor.advisor":["Shen, Shen Q"],"dc:creator":["Cardiel, Joshua Jeremy"],"dc:date.accessioned":["2014-10-20T20:10:31Z"],"dc:date.issued":["2014-10-20"],"dc:description":["Thesis (Ph.D.)--University of Washington, 2014"],"dc:description.abstract":["Surfactant molecules can self-assemble into various morphologies under proper combinations of surfactant concentration, temperature, and flow conditions. In equilibrium, micelles can transition from entangled to branched structures with increasing ionic strength and temperature. Under flow conditions, micellar structure transition can follow different trajectories. In the present work, the structural and rheological evolution of both ionic and non-ionic micellar solutions are studied. When both ionic and non-ionic micellar solutions are subjected to strain rates ∼10^3 s−1 and strain ∼10^3, we observe the formation of stable flow-induced structured phases (FISPs), with entangled, branched, and multi-connected micellar bundles, evidenced by electron microscopy (cryo-EM, TEM, and SEM) and small-angle neutron scattering (SANS). The rheological properties of both ionic and non-ionic micellar solutions and their corresponding FISPs are obtained by using one point passive microrheology and two point passive microrheology. The rheological properties variation from the original micellar solutions to their corresponding FISPs is associated with the structural evolution from the precursor to FISPs. The formation of FISPs is correlated with local micellar gradients concentrations, hight stretching in the microposts arrays, entropic fluctuations, flow kinematics, and microspatial confinement. Finally, some potential sensing applications and nanotemplating uses of the FISPs are presented."],"dc:format.mimetype":["application/pdf"],"dc:identifier.other":["Cardiel_washington_0250E_13376.pdf"],"dc:identifier.uri":["http://hdl.handle.net/1773/26754"],"dc:language.iso":["en_US"],"dc:rights":["Copyright is held by the individual authors."],"dc:subject":["cryo-EM; Micelles; Microfluidics; Rheology; SANS"],"dc:title":["Microfluidics enhanced synthesis of micellar nanostructures"],"dc:type":["Thesis"]},"updated_at":"2026-07-24T05:58:23Z"}