Silver nanoparticles loaded electrospun nanofibers for humidity optical fiber sensing
| Autor: | Urrutia Azcona, Aitor, Rivero Fuente, Pedro J., Goicoechea Fernández, Javier, Rodríguez, Yoany, Arregui San Martín, Francisco Javier, Matías Maestro, Ignacio |
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| Přispěvatelé: | Universidad Pública de Navarra / Nafarroako Unibertsitate Publikoa. ISC - Institute of Smart Cities, Universidad Pública de Navarra. Departamento de Ingeniería Eléctrica y Electrónica, Nafarroako Unibertsitate Publikoa. Ingeniaritza Elektriko eta Elektronikoa Saila |
| Jazyk: | angličtina |
| Rok vydání: | 2012 |
| Předmět: | |
| Zdroj: | Academica-e. Repositorio Institucional de la Universidad Pública de Navarra instname |
| Popis: | Póster presentado al 14th International Meeting on Chemical Sensors (IMCS 2012). Nuremberg, (Alemania), 2012. In this work, a new optical device based on silver loaded electrospun nanofibers (ENFs) for measuring Relative Humidity is proposed. Fiber mats composed of poly(acrylic acid) and β-cyclodextrin were deposited onto an optical fiber core by electrospinning. Afterwards the ENFs were submitted to a thermal curing. Then, the ENFs were loaded with Ag nanoparticles (Ag NPs) synthesized using a Ag+ loading step and a further reduction step with dimethylamine borane (DMAB). Several load/reduction cycles were performed. Ag NPs enhance significantly the optical response of the polymer-only fiber mats. The Ag NPs loaded ENF sensor was tested using controlled variations of Relative Humidity (RH). The results showed a very fast response of the absorbance spectra enabling high performance applications such as human breathing monitoring. This work was supported by the Spanish Ministry of Education and Science-FEDER Research Grant TEC2010-17805 |
| Databáze: | OpenAIRE |
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