Díode orgànic low-cost per impressió electrònica

Inkjet Printing es una tecnología de impresión electrónica por eyección. Es u comparada con las técnicas convencionales, puede fabricar de manera muy e gran resolución diferentes dispositivos electrónicos orgánicos con muchas ventajas. En concreto, el diodo es un dispositivo eléctrico con mucha importanc parte del funcionamiento de muchos de nuestros electrodomésticos. Hasta aho fabricado utilizando técnicas convencionales. Sin embargo, en este artículo se primera vez la posibilidad de fabricar diodo orgánico de bajo coste utilizando sol impresión por eyección.L'Inkjet Printing és la tecnologia d'impressió electrònica per ejecció. És una tècnica que, comparada amb les tècniques convencionals, pot fabricar de manera econòmica i amb molta resolució diferents dispositius elèctrics orgànics amb moltes aplicacions i avantatges. En concret, el díode és un dispositiu elèctric amb molta importància ja que forma part del funcionament de molts dels nostres electrodomèstics. Fins ara, aquest ha estat fabricat utilitzant tècniques cares i convencionals. Tanmateix, en aquest article es demostra per primera vegada la possibilitat de fabricar díode orgànic de baix cost utilitzant només tecnologies d'impressió per ejecció.Inkjet Printing is an electronic ejection printing technology. It is a technique that, compared to others, is able to produce, in a very economical and in a high resolution way, different organic electronic devices which have many applications and advantages. In particular, diode is an important electronic device since it takes part in the operation of most of our household appliances. Until now, diode has been produced using expensive and conventional techniques. But, in this paper, it is proved possible for the first time the production of a low-cost organic diode only using Inkjet printing

An inkjet-printed field-effect transistor for label-free biosensing

A flexible, biological field-effect transistor (BioFET) for use in biosensing is reported. The BioFET is based on an organic thin-film transistor (OTFT) fabricated mainly by inkjet printing and subsequently functionalized with antibodies for protein recognition. The BioFET is assessed for label-free detection of a model protein, human immunoglobulin G (HIgG). It is characterized electrically to evaluate the contribution of each step in the functionalization of the OTFT and to detect the presence of the target protein. The fabrication, structure, materials optimization, electrical characteristics, and functionality of the starting OTFT and final BioFET are also discussed. Different materials are evaluated for the top insulator layer, with the aim of protecting the lower layers from the electrolyte and preserving the BioFET electrical performance

Anàlisi i tècniques de processat del senyal per a la generació de mapes eòlics

L'emplaçament del projecte es situa a un parc eòlic marítim, on es vol observar el vent a través del radar VAD, Velocity Azimuth Display, per poder controlar la velocitat de rotació dels aerogeneradors, i poder substituir els actuals anemòmetres. No ens centrarem en el control d'aquest, sinó que l'objectiu principal d'aquest projecte és analitzar el funcionament i processat de dades del VAD. Es proposaran, simularan i estudiaran noves tècniques d'estimació espectral per obtenir una millora important amb les mesures de velocitat, direcció i divergència del vent, per tal de construir un radar més robust a pertorbacions. A més a més, també il·lustrarem mapes eòlics obtinguts a partir de tot el processat.La ubicación del proyecto se sitúa en un parque eólico marítimo, donde se quiere observar el viento a través del radar VAD, Velocity Azimuth Display, para poder controlar la velocidad de rotación de los aerogeneradores, y poder sustituir los actuales anemómetros. No nos centraremos con el control de estos, sino que el objetivo principal de este proyecto es analizar el funcionamiento y el procesado de datos del VAD. Se propondrán, simularan y estudiaran nuevas técnicas de estimación espectral para obtener una mejora importante de las medidas de la velocidad, dirección y divergencia del viento, por lo tanto construir un radar más robusto a perturbaciones. Además, también se ilustran mapas eólicos obtenidos a partir de todo el procesado.The location of the project is in a offshore wind farm, where it is possible to observe the wind through the VAD (Velocity Azimuth Display) radar, in order to control the rotation speed of the wind turbine and replace the current anemometers. We are not going to concentrate in the control of the wind turbine, but the aim of this project is to analyse the starting up and processing of the VAD radar. There will be proposed, simulated and studied new techniques for spectrum estimation in order to obtain a substantial improving in speed measuring, direction and wind divergence, so as to build a sturdier radar to disturbances. Moreover eolic maps obtained from the processing will be provided

Organic-based field effect transistors for protein detection fabricated by inkjet-printing

Altres ajuts: CERCA Programme/Generalitat de Catalunya.Biosensors based on Organic Field-Effect Transistors (OFETs) have attracted increasing attention due to the possibility of rapid, label-free, and inexpensive detection. Among all the different possibilities, inkjet-printed top-gate organic Field Effect Transistors-Based Biosensors (BioFETs) using a polymeric gate insulator have been seldom reported. In this work, a systematic investigation in terms of topographical and electrical characterization was carried out in order to find the optimal fabrication process for obtaining a reliable polymer insulator. Previous studies have demonstrated that the best electrical performance arises from the use of the perfluoropolymer Cytop™[12,13,14]. Consequently, a simple immobilization protocol was used to ensure the proper attachment of a model biomolecule onto the Cytop's hydrophobic surface whilst keeping its remarkable insulating properties with gate current in the range of dozens of pico-amperes. The top-gate inkjet-printed BioFETs presented in this study operate at threshold voltages in the range of 1-2 V and show durability even when exposed to oxygen plasma, wet amine functionalization treatments, and aqueous media. As a preliminary application, the inkjet-printed top-gate BioFETs is used for monitoring an immunoreaction by measuring changes in the drain current, paving the way for further use of this device in the immunosensing field

Nanopaper-Based Organic Inkjet-Printed Diodes

AbstractThe rise of internet of things (IoTs) applications has led to the development of a new generation of light‐weight, flexible, and cost‐effective electronics. These devices and sensors have to be simultaneously easily replaceable and disposable while being environmentally sustainable. Thus, the introduction of new functionalized materials with mechanical flexibility that can be processed using large‐area and facile fabrication methods (as, for example, printing technologies) has become a matter of great interest in the scientific community. In this context, cellulose nanofibers (CNFs) are renewable, affordable, robust, and nontoxic materials that are rapidly emerging as components for eco‐friendly electronics. Their combination with conductive polymers (CPs) to obtain conductive nanopapers (CNPs) allows moving their functionality from just substrates to active components of the device. In this work, a route for the inkjet‐printing of organic diodes is outlined. The proposed strategy is based on the use of CNPs as both substrates and bottom electrodes onto which insulator and organic semiconducting layers are deposited to fabricate novel diode structures. Remarkable rectification ratios of up to 1.2 × 103 at |3 V| and a current density up to 5.1 µA cm−2 are achieved. As a proof‐of‐concept of the potentiality of the approach for versatile, low‐temperature, and disposable sensing applications, an NO2 gas sensor is presented

Selección clonal de la Garnacha Blanca en el Valle del Ebro: situación actual

1 Pág. (Resumen ampliado)Durante el pasado año 2018 se ha continuado trabajando en la iniciativa surgida en el año 2015 en el Valle del Ebro en torno a la variedad Garnacha Blanca. Diferentes centros de las Comunidades Autónomas de La Rioja (SIV- ICVV), Navarra (EVENA), Aragón (CTA y CSIC) y Cataluña (INCAVI) comenzaron a trabajar de manera coordinada con el fin de aumentar la disponibilidad y diversidad en el mercado de material vegetal de esta variedad y realizar una selección clonal conjunta.Peer reviewe

Variation in Susceptibility to Downy Mildew Infection in Spanish Minority Vine Varieties

Downy mildew is one of the most destructive diseases affecting grapevines (Vitis vinifera L.). Caused by the oomycete Plasmopara viticola (Berk. and Curt.) Berl. and de Toni, it can appear anywhere where vines are cultivated. It is habitually controlled by the application of phytosanitary agents (copper-based or systemic) at different stages of the vine growth cycle. This, however, is costly, can lead to reduced yields, has a considerable environmental impact, and its overuse close to harvest can cause fermentation problems. All grapevines are susceptible to this disease, although the degree of susceptibility differs between varieties. Market demands and European legislation on viticulture and the use of phytosanitary agents (art. 14 of Directive 128/2009/EC) now make it important to know the sensitivity of all available varieties, including minority varieties. Such knowledge allows for a more appropriate use of phytosanitary agents, fosters the commercial use of these varieties and thus increases the offer of wines associated with different terroirs, and helps identify material for use in crop improvement programmes via crossing or genetic transformation, etc. Over 2020–2021, the susceptibility to P. viticola of 63 minority vine varieties from different regions of Spain was examined in the laboratory using the leaf disc technique. Some 87% of these varieties were highly susceptible and 11% moderately susceptible; just 2% showed low susceptibility. The least susceptible of all was the variety Morate (Madrid, IMIDRA). Those showing intermediate susceptibility included the varieties Sanguina (Castilla la Mancha, IVICAM), Planta Mula (Comunidad Valenciana, ITVE), Rayada Melonera (Madrid, IMIDRA), Zamarrica (Galicia, EVEGA), Cariñena Roja (Cataluña, INCAVI), Mandrègue (Aragón, DGA) and Bastardo Blanco (Extremadura, CICYTEX). The highly susceptible varieties could be differentiated into three subgroups depending on sporulation severity and density

Variation in Susceptibility to Downy Mildew Infection in Spanish Minority Vine Varieties

Downy mildew is one of the most destructive diseases affecting grapevines (Vitis vinifera L.). Caused by the oomycete Plasmopara viticola (Berk. and Curt.) Berl. and de Toni, it can appear anywhere where vines are cultivated. It is habitually controlled by the application of phytosanitary agents (copper-based or systemic) at different stages of the vine growth cycle. This, however, is costly, can lead to reduced yields, has a considerable environmental impact, and its overuse close to harvest can cause fermentation problems. All grapevines are susceptible to this disease, although the degree of susceptibility differs between varieties. Market demands and European legislation on viticulture and the use of phytosanitary agents (art. 14 of Directive 128/2009/EC) now make it important to know the sensitivity of all available varieties, including minority varieties. Such knowledge allows for a more appropriate use of phytosanitary agents, fosters the commercial use of these varieties and thus increases the offer of wines associated with different terroirs, and helps identify material for use in crop improvement programmes via crossing or genetic transformation, etc. Over 2020–2021, the susceptibility to P. viticola of 63 minority vine varieties from different regions of Spain was examined in the laboratory using the leaf disc technique. Some 87% of these varieties were highly susceptible and 11% moderately susceptible; just 2% showed low susceptibility. The least susceptible of all was the variety Morate (Madrid, IMIDRA). Those showing intermediate susceptibility included the varieties Sanguina (Castilla la Mancha, IVICAM), Planta Mula (Comunidad Valenciana, ITVE), Rayada Melonera (Madrid, IMIDRA), Zamarrica (Galicia, EVEGA), Cariñena Roja (Cataluña, INCAVI), Mandrègue (Aragón, DGA) and Bastardo Blanco (Extremadura, CICYTEX). The highly susceptible varieties could be differentiated into three subgroups depending on sporulation severity and density.This work, performed by the VIOR (Viticultura, Olivo y Rosa) group of the Misión Biológica de Galicia (CSIC), forms part of the project “Valorización de variedades minoritarias de vid por su potencial para la diversificación vitivinícola. Resiliencia a enfermedades fúngicas influenciadas por el cambio climático” (MINORVIN) (RTI 2018-101085-RC32), funded by MCIN/AEI/, 10.13039/501100011033 and the European Regional Development Fund.info:eu-repo/semantics/publishedVersio

Tècniques i mètodes d'avaluació a la UPC. Incidència en els processos

En el presente proyecto, en primer lugar se ha estructurado y organizado el contenido del espacio virtual propio del Grupo de evaluación, GRAPA, dentro de la plataforma RIMA. Dicho entorno incluye desde aportaciones propias de los miembros del grupo, principalmente profesorado UPC, sobre sus experiencias en técnicas de evaluación, hasta bibliografía general y específica del ámbito. Además se ha traducido el contenido del entorno virtual a los dos idiomas oficiales de Cataluña para posibilitar su difusión al resto de España y así poder convertirse también en un referente nacional. Se ha ido actualizando el contenido para mantener al día toda la información de interés en el ámbito de la docencia y en especial de la evaluación. Con esta actuación se ha conseguido el principal resultado esperado del proyecto que era el de “Crear un espacio virtual propio en el ámbito de la evaluación de la práctica académica, que permita a toda la comunidad docente de la UPC, encontrar sistemas de evaluación sistematizados útiles para sus asignaturas, que aseguren la calidad del proceso de enseñanza-aprendizaje”. En segundo lugar y no por ello menos importante, la ayuda económica concedida en este proyecto ha permitido difundir y dar visibilidad a las iniciativas y los resultados obtenidos por el grupo GRAPA, a toda la comunidad universitaria, por un lado mediante la participación y asistencia a varios congresos nacionales del ámbito docente y por otro mediante la realización de reuniones y contactos con otros grupos de innovación nacionales. Uno de los resultados más importantes fruto de estos contactos ha sido la organización de varios talleres o cursos de formación en el ámbito de la evaluación, ofertados a toda la comunidad universitaria a través del ICE-UPC, Las diferentes Institut de Ciències de l’Educació – Universitat Politècnica de Catalunya – octubre 2008 - 2 - actuaciones han favorecido la divulgación del grupo, posibilitando el aumento del número de miembros UPC de los 18 iniciales a los 36 actuales, todos ellos en mayor o menor medida activos en el grupo.Postprint (published version

Phenological Study of 53 Spanish Minority Grape Varieties to Search for Adaptation of Vitiviniculture to Climate Change Conditions

The main phenological stages (budburst, flowering, veraison, and ripeness) of 53 Spanish minority varieties were studied to determine their potential to help winegrowers adapt to climate change conditions. In total, 43 varieties were studied in the same location in Spain (Alcalá de Henares, in the Madrid region) and 10 varieties in 5 other regions (Galicia, Navarre, Catalonia, Extremadura, and Andalusia). Other traits of agronomic and oenological interest, such as yield and acidity, were also monitored. The results allow for the grouping of the varieties into several clusters according to the time of ripeness (very early—only for red varieties—and early, intermediate, and late, for both red and white varieties) and yield (high, medium, and low). The total acidity in the grape juice ranged from 3 to 11 g of tartaric acid/L. The average temperatures were higher (up to 3–4 °C during summer) compared to historical averages during the 1957–2021 time period. Advanced phenology phases and reduced acidity are regarded as negative effects of climate change for winegrowing practices. Since some minority varieties showed late or intermediate ripening, high acidity, and high (1 Kg/shoot) or medium (0.5 Kg/shoot) yield, our findings suggest that they may be cultivated in the coming years by winegrowers as an approach to mitigate climate change effects.Project RTI2018-101085-R-C31, “Valorization of Minority Grapevine Varieties for their Potential for Wine Diversification and Resilience to Climate Change (MINORVIN),” funded by MCIN/AEI/10.13039/501100011033, and by the ERDF, A Way to Make Europe.Peer reviewe