@misc{10481/57742,
year = {2018},
month = {4},
url = {http://hdl.handle.net/10481/57742},
abstract = {Here, we present a technique for the determination of the gaseous oxygen concentration 2 inside packed food. It is based on the use of a luminescent membrane sensitive to O2 that is optically excited and read by a smartphone. The flash of the smartphone along with an optical filter is used as the light source for the optical stimulation of the membrane. The luminescence generated, which is quenched by the surrounding gaseous oxygen, is registered by the rear camera of the same device. The response parameter is defined by combining the registered intensities at two different wavelength ranges corresponding to the emission and the absorption peaks of the sensitive membrane. Thanks to this novel response parameter, the sensitivity is increased and, more importantly, the thermal dependence of the membrane is significantly reduced. This approach allows the use of a luminescent O2-sensitive membrane for intelligent packaging with no need of any associated electronics for its excitation  and reading. This means that an oxygen sensor is developed, where a luminescent compound acts as an indicator, therefore  combining the advantages of both schemes, that is, the simplicity and reduced cost of indicators with the high sensitivity and accuracy of selective sensors.},
organization = {This work was supported by the Spanish Ministry of Economics and Competivity through the Project CTQ2016-78754-C2-1-R. The work P. Escobedo Araque was supported by the Spanish Ministry of Education, Culture and Sport under Grant FPU13/05032. The work of I. Pérez de Vargas-Sansalvador was supported in part by the European Union’s Horizon 2020 Research and Innovation Program (Multisens) under Grant 706303, in part by the Talentia Postdoc Program launched by the Andalusian Knowledge
Agency, in part by the European Union’s Seventh Framework Program, in part by the Marie Skłodowska-Curie actions (COFUND) under Grant 267226, and in part by the Ministry of Economy, Innovation, Science and Employment of the Junta de Andalucía.},
keywords = {Oxygen sensor},
keywords = {Oxygen},
keywords = {Intelligent packaging},
keywords = {Smart packaging},
keywords = {Smartphone},
title = {Non-Invasive Oxygen Determination in Intelligent Packaging Using a Smartphone},
doi = {10.1109/JSEN.2018.2824404},
author = {Pérez de Vargas Sansalvador, Isabel María and López Ruiz, Nuria and Escobedo Araque, Pablo and Carvajal Rodríguez, Miguel Ángel and Erenas Rodríguez, Miguel María and Martínez Olmos, Antonio},
}