Title:
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Inkjet-printed, functional heterolayers of ZnO@CuO for stoma pouch monitoring
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Author:
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Ortiz Perez, A.; Gao, H.; Lyu, X.; Wöllenstein, Jürgen; Kallfaß, V; Fonollosa Magrinyà, Jordi; Palzer, S.
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Other authors:
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Universitat Politècnica de Catalunya. Departament d'Enginyeria de Sistemes, Automàtica i Informàtica Industrial; Universitat Politècnica de Catalunya. B2SLab - Bioinformatics and Biomedical Signals Laboratory |
Abstract:
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Many bowel cancer patients are in need of an artificial stoma as part of their surgical treatment, and associated post-surgical odours caused by leaking stoma pouches may lead to social isolation, which is why inconspicuous monitoring of this situation is important for affected persons. The integration of micro- and nanotechnology may offer low-cost, low-power consumption and small solutions to this challenge. To this end, we present an inkjet-printed, heterostructured gas sensor that has been built by incorporating nanosized p-type semiconducting CuO in a porous n-type ZnO matrix. The functional layer is fabricated using a combination of a colloidal suspension and sol–gel approach optimized for inkjet printing thus offering an industry-ready method for integration of nanomaterials in microelectromechanical systems (MEMS) structures. Using a thermal modulation scheme we enhance the information content and classify different events. We demonstrate that a simple MEMS device using a novel hetero-nanomaterial may be used to reliably identify situations where stoma pouch content escapes. © 2018, Springer-Verlag GmbH Germany, part of Springer Nature. |
Subject(s):
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-Àrees temàtiques de la UPC::Enginyeria dels materials -Ink-jet printing -Additive manufacturing -Colloidal suspension -CuO -Hybrid functional materials -Inkjet printing -ZnO -Impressió de raig de tinta |
Rights:
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Document type:
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Article - Published version Article |
Published by:
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Springer Nature
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