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dc.contributor.authorPonce-Alcantara, Salvador
dc.contributor.authorMartin-Sanchez, David
dc.contributor.authorKovylina, Miroslavna
dc.contributor.authorPerez-Marquez, Ana
dc.contributor.authorMaudes, Jon
dc.contributor.authorMurillo, Nieves
dc.contributor.authorGarcia-Ruperez, Jaime
dc.date.accessioned2019-09-17T13:21:27Z
dc.date.available2019-09-17T13:21:27Z
dc.date.issued2019-12
dc.identifier.citationPonce-Alcantara, Salvador, David Martin-Sanchez, Miroslavna Kovylina, Ana Perez-Marquez, Jon Maudes, Nieves Murillo, and Jaime Garcia-Ruperez. “Dual Refractive Index and Viscosity Sensing Using Polymeric Nanofibers Optical Structures.” IEEE Sensors Journal 19, no. 24 (December 15, 2019): 11850–11857. doi:10.1109/jsen.2019.2938832.en
dc.identifier.issn1530-437Xen
dc.identifier.urihttp://hdl.handle.net/11556/763
dc.description.abstractPorous materials have demonstrated to be ideal candidates for the creation of optical sensors with very high sensitivities. This is due both to the possibility of infiltrating the target substances into them and to their notable surface-to-volume ratio that provides a larger biosensing area. Among porous structures, polymeric nanofibers (NFs) layers fabricated by electrospinning have emerged as a very promising alternative for the creation of low-cost and easy-to-produce high performance optical sensors, for example, based on Fabry-Perot (FP) interferometers. However, the sensing performance of these polymeric NFs sensors is limited by the low refractive index contrast between the NFs porous structure and the target medium when performing in-liquid sensing experiments, which determines a very low amplitude of the FP interference fringes appearing in the spectrum. This problem has been solved with the deposition of a thin metal layer (∼ 3 nm) over the NFs sensing layer. We have successfully used these metal-coated FP NFs sensors to perform several real-time and in-flow refractive index sensing experiments. From these sensing experiments, we have also determined that the sponge-like structure of the NFs layer suffers an expansion/compression process that is dependent of the viscosity of the analyzed sample, what thus gives the possibility to perform a simultaneous dual sensing of refractive index and viscosity of a fluid.en
dc.language.isoengen
dc.publisherIEEEen
dc.rightsAttribution 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/*
dc.titleDual refractive index and viscosity sensing using polymeric nanofibers optical structuresen
dc.typearticleen
dc.identifier.doi10.1109/jsen.2019.2938832en
dc.rights.accessRightsopenAccessen
dc.subject.keywordsFabry-Peroten
dc.subject.keywordsNanofibers layeren
dc.subject.keywordsNanophotonicsen
dc.subject.keywordsPolymersen
dc.subject.keywordsPorous structureen
dc.subject.keywordsReal-time sensoren
dc.subject.keywordsRefractive indexen
dc.subject.keywordsViscosityen
dc.identifier.essn1558-1748en
dc.issue.number24
dc.journal.titleIEEE Sensors Journalen
dc.page.final11857en
dc.page.initial11850en
dc.volume.number19


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