dc.contributor.author | Florea, Larisa | |
dc.contributor.author | Martin Mayor, Alain | |
dc.contributor.author | Bou-Ali, M. Mounir | |
dc.contributor.author | Meagher, Kate | |
dc.contributor.author | Diamond, Dermot | |
dc.contributor.author | Tutar, Mustafa | |
dc.contributor.author | Benito López, Fernando | |
dc.date.accessioned | 2016-10-04T16:29:16Z | |
dc.date.available | 2016-10-04T16:29:16Z | |
dc.date.issued | 2016-08 | |
dc.identifier.citation | Sensors and Actuators B: Chemical 231 : 744–751 (2016) | es |
dc.identifier.issn | 0925-4005 | |
dc.identifier.uri | http://hdl.handle.net/10810/19071 | |
dc.description.abstract | [EN] Therefore the understanding and proper evaluation of the flow and mixing behaviour at microscale becomes a very important issue. In this study, the diffusion behaviour of two reacting solutions of HCI and NaOH were directly observed in a glass/polydimethylsiloxane microfluidic device using adaptive coatings based on the conductive polymer polyaniline that are covalently attached to the microchannel walls. The two liquid streams were combined at the junction of a Y-shaped microchannel, and allowed to diffuse into each other and react. The results showed excellent correlation between optical observation of the diffusion process and the numerical results. A numerical model which is based on finite volume method (FVM) discretisation of steady Navier-Stokes (fluid flow) equations and mass transport equations without reactions was used to calculate the flow variables at discrete points in the finite volume mesh element. The high correlation between theory and practical data indicates the potential of such coatings to monitor diffusion processes and mixing behaviour inside microfluidic channels in a dye free environment. | es |
dc.description.sponsorship | The project was carried out with the support of Science Foundation Ireland under INSIGHT award SFI/12/RC/2289. This work was also supported by Gobierno Vasco, Dpto. Industria, Innovación,Comercio y Turismo under ETORTEK 2013, ETORTEK 2014 for the project undertaken by Microchip and ELKARTEK 2015–16 the project of Fluids Mechanics Groups (IT557-10) of Gobierno Vasco,Dpto. de Educación. F.B.L. acknowledges the Ramón y Cajal programme (Ministerio de Economía y Competitividad). FBL personally acknowledges Marian M. De Pancorbo for letting him to use her laboratory facilities at UPV/EHU. | es |
dc.language.iso | eng | es |
dc.publisher | Elsevier | es |
dc.relation | eu-repo/grantAgreement/EC/FP7/604241 | es |
dc.relation | info:eu-repo/grantAgreement/MINECO/RYC | |
dc.rights | info:eu-repo/semantics/openAccess | es |
dc.subject | polyaniline | es |
dc.subject | mixing process | es |
dc.subject | adaptive coatings | es |
dc.subject | optical sensor | es |
dc.subject | microfluidics | es |
dc.subject | computational fluid dynamics (CFD) | es |
dc.title | Adaptive coatings based on polyaniline for direct 2D observation of diffusion processes in microfluidic systems | es |
dc.type | info:eu-repo/semantics/article | es |
dc.rights.holder | © 2016 Elsevier B.V. All rights reserved | es |
dc.relation.publisherversion | http://www.sciencedirect.com/science/article/pii/S0925400516303793 | es |
dc.identifier.doi | 10.1016/j.snb.2016.03.085 | |
dc.departamentoes | Química analítica | es_ES |
dc.departamentoeu | Kimika analitikoa | es_ES |
dc.subject.categoria | CHEMISTRY, MATERIALS | |
dc.subject.categoria | ELECTRICAL AND ELECTRONIC ENGINEERING | |
dc.subject.categoria | ELECTRONIC, OPTICAL AND MAGNETIC MATERIALS | |
dc.subject.categoria | INSTRUMENTS AND INSTRUMENTATION | |
dc.subject.categoria | METALS AND ALLOYS | |
dc.subject.categoria | PHYSICS, CONDENSED MATTER | |
dc.subject.categoria | SURFACES, COATINGS AND FILMS | |