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dc.contributor.authorMartínez Olmos, Antonio 
dc.contributor.authorFernández-Salmerón, José
dc.contributor.authorLópez Ruiz, Nuria 
dc.contributor.authorRivadeneyra Torres, Almudena 
dc.contributor.authorCapitán Vallvey, Luis Fermín 
dc.contributor.authorPalma López, Alberto José 
dc.date.accessioned2023-11-07T09:30:06Z
dc.date.available2023-11-07T09:30:06Z
dc.date.issued2013-10-14
dc.identifier.urihttps://hdl.handle.net/10481/85504
dc.description.abstractIn this work, a radiofrequency identification (RFID) tag with an optical indicator for the measurement of gaseous oxygen is described. It consists of an O2 sensing membrane of PtOEP together with a full electronic system for RFID communication, all printed on a flexible substrate. The membrane is excited by an LED at 385 nm wavelength and the intensity of the luminescence generated is registered by means of a digital color detector. The output data corresponding to the red coordinate of the RGB color space is directly related to the concentration of O2, and it is sent to a microcontroller. The RFID tag is designed and implemented by screen printing on a flexible substrate for the wireless transmission of the measurement to a remote reader. It can operate in both active and passive mode, obtaining the power supply from the electromagnetic waves of the RFID reader or from a small battery, respectively. This system has been fully characterized and calibrated including temperature drifts, showing a high-resolution performance that allows measurement of very low values of oxygen content. Therefore this system is perfectly suitable for its use in modified atmosphere packaging where the oxygen concentration is reduced below 2%. As the reading of the O2 concentration inside the envelope is carried out with an external RFID reader using wireless communication, there is no need for perforations for probes or wires, so the packaging remains completely closed. With the presented device, a limit of detection of 40 ppm and a resolution as low as 0.1 ppm of O2 can be reached with a low power consumption of 3.55 mA.es_ES
dc.description.sponsorshipJunta de Andalucía (Proyecto de Excelencia P10-TIC-5997 and P10-FQM-5974)es_ES
dc.description.sponsorshipProject PYR-2012-12, CEI BioTIC (CEB09-0010 and CEI2013-P-2) from CEI program of MICINNes_ES
dc.description.sponsorshipEuropean Regional Development Funds (ERDF)es_ES
dc.language.isoenges_ES
dc.publisherAmerican Chemical Societyes_ES
dc.titleScreen Printed Flexible Radiofrequency Identification Tag for Oxygen Monitoringes_ES
dc.typeinfo:eu-repo/semantics/articlees_ES
dc.rights.accessRightsinfo:eu-repo/semantics/openAccesses_ES
dc.identifier.doidx.doi.org/10.1021/ac4028802
dc.type.hasVersioninfo:eu-repo/semantics/publishedVersiones_ES


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