RT info:eu-repo/semantics/article T1 Functional aromatic polyamides for the preparation of coated fibres as smart labels for the visual detection of biogenic amine vapours and fish spoilage A1 González Ceballos, Lara A1 Melero Gil, Beatriz A1 Trigo López, Miriam A1 Vallejos Calzada, Saúl A1 Muñoz Santamaría, María Asunción A1 García García, Félix Clemente A1 Fernández Muiño, Miguel Ángel A1 Sancho Ortiz, María Teresa A1 García Pérez, José Miguel K1 Amine sensors K1 Biogenic amines K1 Polymer chemosensors K1 Smart labels K1 Fish spoilage K1 Química K1 Chemistry AB We have prepared high-performance functional aromatic polyamides with sensory pendant groups toward amines. These polymers are colourless. The pendant groups have bromonaphthalimide motifs that react with amines rendering coloured arylamines by nucleophilic aromatic substitution of the halide. Thus, these materials are colorimetric sensors toward amines. In the interest of saving costs, while having a sensory material with a high specific surface, cotton fabrics were coated, in order to render coated fibres as smart colorimetric labels toward amines. Moreover, as fish spoilage by microorganism increases the biogenic amines in food, we have applied the smart labels to visually follow the food spoilage. Also, a picture taken to the films allowed to obtain, in seconds, the digital colour definition parameters (RGB) that were correlated with the results of expensive and time-consuming conventional techniques used to obtain relevant food quality data, such as total amine concentration (treatment of the sample and HPLC), colony-forming unit (microbiological assays), total volatile basic nitrogen (TVB-N), and organoleptic test (sensory test). The smart labels are inexpensive, granting in seconds the visual qualitative evaluation of the food quality, or even quantitative, and they comply with the European food contact materials regulation. PB Elsevier SN 0925-4005 YR 2020 FD 2020 LK http://hdl.handle.net/10259/5198 UL http://hdl.handle.net/10259/5198 LA eng NO FEDER (Fondo Europeo de Desarrollo Regional), and both the Spanish Ministerio de Economía, Industsria y Competitividad (MAT2017-84501-R) and the Consejería de Educación—Junta de Castilla y León (BU061U16) DS Repositorio Institucional de la Universidad de Burgos RD 24-nov-2024