2026-05-15T10:58:32Zhttps://riubu.ubu.es/oai/request

oai:riubu.ubu.es:10259/61392022-11-29T11:46:00Zcom_10259_3596com_10259_5086com_10259_2604com_10259_4354com_10259_4363col_10259_3597col_10259_4364col_10259_4355

García Tojal, Javier Cuevas Vicario, José Vicente Rojo Cámara, Mª Josefa Díaz de Greñu Puertas, Borja Hernando Muñoz, Carla García Calvo, José Martín Salgado, Mateo Torroba Pérez, Tomás 2021-11-11T13:52:56Z 2021-11-11T13:52:56Z 2021-03 1420-3049 http://hdl.handle.net/10259/6139 10.3390/molecules26051404 We describe the synthesis of fluorogenic arylureas and amides and their interaction with primary or secondary amines under air and light in organic-aqueous mixtures to give rise to a new class of persistent organic radicals, described on the basis of their electron paramagnetic resonance (EPR), as well as UV–vis, fluorescence, NMR, and quantum mechanics calculations, and their prospective use as multi-signal reporters in a smart label for fish freshness. Funded by the NATO Science for Peace and Security Programme (Grant SPS G5536), the Junta de Castilla y León, Consejería de Educación y Cultura y Fondo Social Europeo (Grant BU263P18), and the Ministerio de Ciencia e Innovación (Grant PID2019-111215RB-100) application/pdf eng MDPI Molecules. 2021, V. 26, n. 5, 1404 https://doi.org/10.3390/molecules26051404 info:eu-repo/grantAgreement/NATO/Science for Peace and Security Programme/G5536//Development of New Chemical Sensors and Optical Technologies for Fast and Sensitive Detection of Improvised Explosives info:eu-repo/grantAgreement/Junta de Castilla y León//BU263P18//Sondas fluorescentes en materiales nanoestructurados para la detección y modificación de toxinas medioambientales o contaminantes traza y su incorporación a estrategias terapéuticas [fluonano] info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2019-111215RB-I00/ES/DESARROLLO DE NUEVOS SENSORES QUIMICOS PARA LA DETECCION RAPIDA Y SELECTIVA DE DISPOSITIVOS EXPLOSIVOS IMPROVISADOS Atribución 4.0 Internacional http://creativecommons.org/licenses/by/4.0/ info:eu-repo/semantics/openAccess Arylureas Turn-on fluorescence Organic radicals Smart label Volatile amines Química Chemistry Synthesis of Fluorogenic Arylureas and Amides and Their Interaction with Amines: A Competition between Turn-on Fluorescence and Organic Radicals on the Way to a Smart Label for Fish Freshness info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion