Low toxicity deep eutectic solvent-based ferrofluid for the determination of UV filters in environmental waters by stir bar dispersive liquid microextraction.

[EN] In this work, a low toxicity deep eutectic solvent-based ferrofluid is presented for the first time as magnetic fluid to be used as an efficient solvent in liquid-based microextraction techniques. This ferrofluid is made of a hydrophobic deep eutectic solvent, composed by menthol and thymol in a 1:5 molar ratio as carrier solvent, and oleic acid-coated cobalt ferrite (CoFe2O4@oleic acid) magnetic nanoparticles. This material was characterized via magnetism measurement, scanning electron microscopy, infrared spectroscopy and density measurement. The determination of UV filters in environmental water samples was selected as model analytical application to test the extraction performance of this new ferrofluid by employing stir bar dispersive liquid microextraction, prior to liquid chromatography-tandem mass spectrometry analysis. The response surface methodology was used as a multivariate optimization method for extraction step. Under the optimized conditions, good analytical features were obtained, such as low limits of detection between 7 and 83ngL-1, good repeatability (relative standard deviations, RSD (%) below 15%), enrichment factors between 46 and 101 and relative recoveries between 80 and 117%, proving the good extraction capability of this ferrofluid. Finally, the method was successfully applied to three environmental waters (beach and river waters), finding trace amounts of the target UV filters. The presented low toxicity deep eutectic solvent-based ferrofluid results to be a good alternative to conventional solvents used in liquid-phase microextraction techniques.J.L.B. thanks the Generalitat Valenciana and the European Social Fund for his postdoctoral grant, and A.D. thanks the Basque Country Government for her predoctoral contract (Bikaintek 2020 Program from the Regional Minister for Economic Development and Infrastructures (order 2021–1353, file number 021-B2/2020)). Authors also thank to the Magnetism Unit of SGIker of University of Basque Country (UPV/EHU) for kindly carrying out the magnetism measurements. This article is based upon work from the National Thematic Network on Sample Treatment (RED-2018-102522-T) of the Spanish Ministry of Science, Innovation and Universities, and the Sample Preparation Study Group and Network supported by the Division of Analytical Chemistry of the European Chemical Society

NEWSHUB: Incubadora de contenidos formativos para la comunicación profesional de los resultados del Aprendizaje Basado en Proyectos (ABP)

El proyecto NEWSHUB pretende ser el punto de unión entre docentes y estudiantes a través de las asignaturas y proyectos que desarrollen ambos colectivos de la comunidad universitaria. En esta relación al mismo nivel entre profesor/alumno se proporciona apoyo, formación y asesoramiento para poder realizar proyectos de diversa índole y materializarlos para su uso y difusión tanto dentro del aula y el ámbito académico como fuera de ella en el terreno profesional. NEWSHUB es una incubadora de proyectos. Rediseñamos actividades y prácticas de clase para que se ajusten a una aplicación eficaz de la metodología de aprendizaje basado en proyectos. Ofrecemos asesoría y acompañamiento a docentes y estudiantes para que desarrollen su actividad académica integrando estrategias y procesos de calidad propios del ámbito profesional. NEWSHUB es una plataforma de formación. Ponemos contenidos formativos sobre comunicación eficiente a disposición de la comunidad educativa e investigadora y del sector de la orientación laboral y el fomento del emprendimiento. Ofrecemos recursos educativos abiertos a través de una plataforma web modular, interoperable y accesible, que alberga contenidos digitales de producción propia y un banco de buenas prácticas. NEWSHUB conecta asignaturas, docentes y estudiantes para que los resultados de los distintos procesos de enseñanza-aprendizaje se optimicen para el cumplimiento de los objetivos clave del proyecto: aplicar eficazmente metodologías abiertas en el aula; alimentar el porfolio y el currículum en la búsqueda de empleo y el fomento del emprendimiento; y generar recursos educativos y modelos de buenas prácticas para formar en una comunicación eficiente

Accesibilidad universal y patrimonio construido. A la búsqueda de la compatibilidad

La instalación de un ascensor de cristal contemplada en el proyecto de restauración de la torre del campanario de la catedral de Almería ha abierto el debate entre los partidarios y los detractores de este tipo de intervenciones

Versican accumulation drives Nos2 induction and aortic disease in Marfan syndrome via Akt activation.

Thoracic aortic aneurysm and dissection (TAAD) is a life-threatening condition associated with Marfan syndrome (MFS), a disease caused by fibrillin-1 gene mutations. While various conditions causing TAAD exhibit aortic accumulation of the proteoglycans versican (Vcan) and aggrecan (Acan), it is unclear whether these ECM proteins are involved in aortic disease. Here, we find that Vcan, but not Acan, accumulated in Fbn1C1041G/+ aortas, a mouse model of MFS. Vcan haploinsufficiency protected MFS mice against aortic dilation, and its silencing reverted aortic disease by reducing Nos2 protein expression. Our results suggest that Acan is not an essential contributor to MFS aortopathy. We further demonstrate that Vcan triggers Akt activation and that pharmacological Akt pathway inhibition rapidly regresses aortic dilation and Nos2 expression in MFS mice. Analysis of aortic tissue from MFS human patients revealed accumulation of VCAN and elevated pAKT-S473 staining. Together, these findings reveal that Vcan plays a causative role in MFS aortic disease in vivo by inducing Nos2 via Akt activation and identify Akt signaling pathway components as candidate therapeutic targets.We thank S. Bartlett for English language editing; V Labrador for advice on confocal imaging and immunofluorescent experiments; the CNIC Facilities of histology, microscopy, and advanced imaging; and AI Torralbo for excellent technical support and advice. The CNIC is supported by the Instituto de Salud Carlos III (ISCIII), the Ministerio de Ciencia e Innovación (MCIN) and the Pro CNIC Foundation), the CBMSO is supported by Consejo Superior de Investigaciones Científicas and Universidad Autónoma de Madrid. CBMSO and CNIC are Severo Ochoa Centers of Excellence (grants CEX2021-001154-S and CEX2020-001041-S, respectively) funded by MICIN/AEI/10.13039/ 501100011033. The project leading to these results has received funding from “La Caixa” Banking Foundation under project codes HR18-00068 (to MRC and JMR); Spanish Ministerio de Ciencia e Innovación grant RTI2018-099246-BI00 (MICIU/AEI/FEDER, UE) to JMR, and grants PID2020-115217RB-100 and PID2021-122388OB-100 to MRC and JMR, respectively, funded by MCIN/AEI/ 10.13039/501100011033; Instituto de Salud Carlos III (CIBER-CV CB16/11/ 00264 and CB16/11/00479; and grants PI17/00381 to GT-T and PI21/00084 (co-funded by Fondo Europeo de Desarrollo Regional (FEDER)) to JFN); Fundacio La Marato TV3 (20151330 to JMR); Instituto de Investigación Sanitaria Marqués de Valdecilla (IDIVAL) (INNVAL 21/24) to JFN; The Marfan Foundation USA Faculty grant 2017 MRF/1701 (to JMR); Fundación MERCKFundación Española de Enfermedades Raras 2022 and V-Ayudas “Muevete por ́ los que no pueden 2021” (to JO); and Spanish Ministerio de Ciencia e Innovación contracts FPI (BES-2016-077649) to MJR-R; Sara Borrell (CD18/ 00028) and Juan de la Cierva (IJC2020-044581-I) to MT; Ramón y Cajal (RYC2021-033343-I) to JO; and FPU (20/04814) to IA-R.S