https://hdl.handle.net/10259/9393 Fri, 17 Apr 2026 09:47:08 GMT 2026-04-17T09:47:08Z https://hdl.handle.net/10259/10814 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. Mon, 25 Aug 2025 00:00:00 GMT https://hdl.handle.net/10259/10814 2025-08-25T00:00:00Z https://hdl.handle.net/10259/10622 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" Tue, 24 Jun 2025 00:00:00 GMT https://hdl.handle.net/10259/10622 2025-06-24T00:00:00Z https://hdl.handle.net/10259/9387 Dataset of the work "UBU-Polymers Research Group 16042024" Gaona Ruiz, María; Vallejo García, Jorge Lucas; Arnáiz Alonso, Ana; Sedano Labrador, Carlos; Trigo López, Miriam; Rodríguez Velasco, Ana; Carrillo Pérez, Celia; Vallejos Calzada, Saúl The dataset contains all raw data of the work "Smart polymers and smartphones for Betalain measurement in cooked beetroots" Sun, 14 Jul 2024 00:00:00 GMT https://hdl.handle.net/10259/9387 2024-07-14T00:00:00Z