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dc.rights.licenseAttribution 4.0 International*
dc.contributor.authorLapeira, Estela
dc.contributor.authorAginagalde, Maialen
dc.contributor.authorBou-Ali, M. Mounir
dc.contributor.otherde la Asunción-Nadal, Víctor
dc.contributor.otherPacheco, Marta
dc.contributor.otherJurado Sánchez, Beatriz
dc.contributor.otherEscarpa, Alberto
dc.date.accessioned2024-04-11T08:04:55Z
dc.date.available2024-04-11T08:04:55Z
dc.date.issued2024
dc.identifier.issn1976-0280en
dc.identifier.otherhttps://katalogoa.mondragon.edu/janium-bin/janium_login_opac.pl?find&ficha_no=176372en
dc.identifier.urihttps://hdl.handle.net/20.500.11984/6345
dc.description.abstractThermal gradients have emerged as a promising technique for manipulating and sorting biological material at the microscale, holding considerable potential in lab-on-a-chip technology. Herein, we propose a non-invasive thermohydrodynamic approach for fast cell manipulation using a microfluidic open-to-air device. Cell discrimination is achieved by simply changing the temperature gradient toward the control of the convective effect on their displacement. First, the size and morphology/roughness-based motion capabilities were modeled using polystyrene (PS) microparticles with different sizes (5 and 20 μm) and polycaprolactone (PCL) microspheres, respectively. Computational fluid dynamics simulations of the generated flow were also carried out to demonstrate the influence of both the thermohydrodynamic and Marangoni effects in the PS particle displacement, where the thermally induced convective effect was not enough to move the microparticles inside the channel, but the combination of thermally induced convection together with the Marangoni effect. Indeed, small particles (5 μm) followed a full convective path, whereas the bigger ones (20 μm) exhibited a rolling motion on the substrate from the cold side to the hot side. Also, the relationship between in-flow speed and PCL (≈ 20 μm) surface roughness confirmed the driving force of this convection-based approach. Then, the microfluidic device was successfully used to separate Henrietta Lacks cancer cells (HeLa) from red blood (RBCs) and fibroblast (HFF-1) cells. To this end, thermal gradients were tailored to achieve the desired thermohydrodynamic effect, showing a highly versatile performance. Both cell models (HeLa-RBCs and HeLa-HFF-1), due to rationale tweaking of the imposed temperature gradients (ΔT = 10 K, 303–293 K, and ΔT = 5 K, 303–298 K), were efficiently separated in less than 5 and 60 s, respectively; with excellent cell viabilities. The proposed microfluidic approach holds considerable promise for thermohydrodynamic sorting and manipulation of biological material by non-invasive methods using portable instrumentation. The potential parallelization of the thermal-convective approach opens new avenues for early disease diagnosis (liquid biopsies) or the study of biological systems, even at physiological temperatures with a potential impact in cell (organ)-on-a-chip technologies.en
dc.language.isoengen
dc.publisherSpringeren
dc.rights© 2024 The Authorsen
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/*
dc.subjectThermohydrodynamic convectionen
dc.subjectMarangoni effecten
dc.subjectMicrofluidicsen
dc.subjectRBCsen
dc.subjectHeLaen
dc.subjectFibroblast cellsen
dc.titleNon-invasive Thermohydrodynamic Approach for Fast Cell Manipulation at the Microscaleen
dcterms.accessRightshttp://purl.org/coar/access_right/c_abf2en
dcterms.sourceBioChip Journalen
local.contributor.groupMecánica de fluidoses
local.description.peerreviewedtrueen
local.identifier.doihttps://doi.org/10.1007/s13206-024-00145-3en
local.contributor.otherinstitutionhttps://ror.org/04pmn0e78
local.source.details2024
oaire.format.mimetypeapplication/pdfen
oaire.file$DSPACE\assetstoreen
oaire.resourceTypehttp://purl.org/coar/resource_type/c_6501en
oaire.versionhttp://purl.org/coar/version/c_970fb48d4fbd8a85en


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Registro sencillo

Attribution 4.0 International
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