https://hdl.handle.net/10259/6735 2026-04-19T15:41:53Z 2026-04-19T15:41:53Z Vallejo García, Jorge Lucas Trigo López, Miriam Ibeas Cortes, Saturnino García García, Félix Clemente Busto Núñez, Mª Dolores Núñez-Carrero, Karina C. Alonso-Pastor, Luis E. Vallejos Calzada, Saúl https://hdl.handle.net/10259/11017 2025-11-03T09:18:49Z 2025-10-28T00:00:00Z

UBU-Polymers Research Group 21032024 Vallejo García, Jorge Lucas; Trigo López, Miriam; Ibeas Cortes, Saturnino; García García, Félix Clemente; Busto Núñez, Mª Dolores; Núñez-Carrero, Karina C.; Alonso-Pastor, Luis E.; Vallejos Calzada, Saúl This work presents a new polymeric material in the form of a film (FLAC) containing immobilized laccase enzyme through diazo bonds, designed for the degradation of indigo carmine dye, which is highly toxic and commonly found in wastewater from the textile industry. The immobilization of the enzyme in the film was characterized by SEM, FT-IR, DSC, TGA and EDXS. The degradation of the dye by FLAC initiates in the presence of a mediator due to the high redox potential of the dye. Six natural mediators (ferulic acid, syringaldazine, guaiacol, eugenol, thymol, and p-coumaric acid) were tested, and complete degradation of the dye was achieved in 180 min, with a mediator concentration of 1 ppm (syringaldazine) and a dye concentration of 10 ppm. A novelty in this study is the short exposure time of the dye-mediator solution to FLAC (15 min) which allowed the degradation process to continue autonomously after the film was removed. Additionally, it was observed that the material was more effective in the presence of textile washing products, achieving over 99 % degradation in 40 min, surpassing its efficacy in distilled water. Regarding reusability, the material retained >90 % of its activity after five cycles of use and washing. Life Cycle Assessment (LCA) and Techno-Economic Analysis (TEA) identified key levers for techno-economic and environmental viability: shorten cycle time (surfactant media), maximise re-use and percycle volume/concentration, implement solvent recovery, and energy decarbonization thereby outlining a roadmap to sustainable scale-up.

2025-10-28T00:00:00Z Gaona Ruiz, María Torija López, Alba Trigo López, Miriam Arnáiz Alonso, Ana Sedano Labrador, Carlos Rodríguez Velasco, Ana Vallejo García, Jorge Lucas Carrillo Pérez, Celia Vallejos Calzada, Saúl https://hdl.handle.net/10259/10814 2025-08-29T07:54:13Z 2025-08-25T00:00:00Z

Dataset of the work "UBU-Polymers Research Group 28032025"  Gaona Ruiz, María; Torija López, Alba; Trigo López, Miriam; Arnáiz Alonso, Ana; Sedano Labrador, Carlos; Rodríguez Velasco, Ana; Vallejo García, Jorge Lucas; Carrillo Pérez, Celia; Vallejos Calzada, Saúl Antioxidants are used as markers of the functional potential of foods, making their accurate quantification essential for assessing bioactivity and possible health benefits. A smart polymer incorporating 2,2-diphenyl-1-picrylhydrazyl (DPPH) motifs (FDPPH) was synthesized via bulk polymerization of N-vinylpyrrolidone, methyl methacrylate, and a diphenylamine-functionalized monomer, followed by solid-phase reactions to introduce the DPPH functionality. FTIR and thermal analysis confirmed successful synthesis. The FDPPH sensor showed a colorimetric response consistent with DPPH in solution, demonstrating its reliability. Twenty-three beet samples were analyzed using both the conventional DPPH assay and the FDPPH method, where polymer discs were immersed and colour changes recorded via smartphone. The hue (H) parameter in the HSV colour-space showed the highest correlation. Calibration using beet samples was more accurate than with Trolox. The optimal response time was 3 hours, with a LOD and LOQ of 0.063 and 0.191 mmol Trolox/L, respectively.

2025-08-25T00:00:00Z Gaona Ruiz, María Vallejos Calzada, Saúl Rodríguez Velasco, Ana Trigo López, Miriam Carrillo Pérez, Celia https://hdl.handle.net/10259/10622 2025-06-27T11:04:49Z 2025-06-24T00:00:00Z

Dataset of the work "UBU-Polymers Research Group 02062025" Gaona Ruiz, María; Vallejos Calzada, Saúl; Rodríguez Velasco, Ana; Trigo López, Miriam; Carrillo Pérez, Celia The dataset contains all raw data of the work "Fast-Track Analysis of Beetroot Using the Liquid Generated During the Cooking Process"

2025-06-24T00:00:00Z Guembe García, Marta Vallejos Calzada, Saúl García Pérez, José Miguel Trigo López, Miriam https://hdl.handle.net/10259/10517 2025-06-05T08:21:13Z 2025-05-22T00:00:00Z

Dataset of the work "UBU-Polymers Research Group 03062025" Guembe García, Marta; Vallejos Calzada, Saúl; García Pérez, José Miguel; Trigo López, Miriam The dataset contains all raw data of the work "Intrinsically Colored Magenta Aramids with Improved Mechanical Performance"

2025-05-22T00:00:00Z