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    Characterization of new thermo-responsive hydrogels for optical sensing applications

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    Identificadores
    URI: http://hdl.handle.net/10902/2578
    DOI: 10.1117/12.720426
    ISSN: 1996-756X
    ISSN: 0277-786X
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    Author
    Rueda Sánchez, Juan Carlos; Contreras Villalobos, Kevin; Coello Paria, Rafael; Lomer Barboza, Mauro MatíasAutoridad Unican; Komber, Hartmut; Zschoche, Stefan; Voit, Brigitte
    Date
    2007-05-07
    Derechos
    © 2007 Society of Photo-Optical Instrumentation Engineers. One print or electronic copy may be made for personal use only. Systematic electronic or print reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.
    Publicado en
    Proceedings of SPIE, 2007, vol. 6572, 65720T
    Enabling Photonics Technologies for Defense, Security, and Aerospace Applications III, Orlando (FL), 2007
    Publisher
    SPIE Society of Photo-Optical Instrumentation Engineers
    Enlace a la publicación
    http://dx.doi.org/10.1117/12.720426
    Palabras clave
    Thermo-responsive proprieties
    Smart hydrogels
    Optical sensing
    Abstract:
    We report the use of new hydrogels based on poly-N-isopropylacrilamide and MeOXA in order to measure temperature using optical transmittance. We have obtained thermo-responsive hydrogels based on the radical copolymerization of N-isopropylacrylamide (NIPAAm) and bis-macromonomers of 2-methyl-2-oxazoline (MeOXA). The hydrogels show conformational transitions at defined temperatures, which are a function of the molar ratio NIPAAm / MeOXA inside of the hydrogel. The temperatures of transition have been determined by means of 1H NMR spectroscopy and by turbidity measurements using an optical setup with optical fibers and a diode laser. We show the first experimental results and we discuss some future applications such as an optical switch or a device for optical sensing.
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    UNIVERSIDAD DE CANTABRIA

    Repositorio realizado por la Biblioteca Universitaria utilizando DSpace software
    Contact Us | Send Feedback
    Metadatos sujetos a:licencia de Creative Commons Reconocimiento 3.0 España