Single-ion lithium conducting polymers with high ionic conductivity based on borate pendant groups

This communication reports a family of single-ion lithium conducting polymer electrolytes based on highly delocalized borate groups is reported. The effect of the nature of the substituents on the boron atom on the ionic conductivity of the resultant methacrylic polymers was analyzed. To the best of our knowledge the lithium borate polymers endowed with flexible and electron-withdrawing substituents presents the highest ionic conductivity reported for a lithium single-ion conducting homopolymer (1.65×10−4 S cm−1 at 60 °C). This together with its high lithium transference number tLi+= =0.93 and electrochemical stability window of 4.2 V vs Li0/Li+ show promise for application in lithium batteries. To illustrate this, a lithium borate monomer was integrated into a single-ion gel polymer electrolyte which showed good performance on lithium symmetrical cells (<0.85 V at ±0.2 mA cm−2 for 175 h).This work was supported by a Grant for Basque Government through grant IT1309-19, and European Commission’s funded Marie Skłodowska-Curie project POLYTE-EID (project no. 765828) and Spanish MCIN/ AEI/ PID2020-119026GB-I00. G.G-G. is grateful to "Secretaría de Educación, Ciencia, Tecnología e Innovación" from Ciudad de México for the postdoctoral fellowship through grant (SECTEI/133/2019)

Lithium Borate Ionic Liquids as Single-Component Electrolytes for Batteries

Current electrolytes for lithium batteries are usually composed of at least two chemical compounds, an organic solvent such as a cyclic carbonate and a lithium salt such as LiPF6. Here, the concept of using a single-component electrolyte is demonstrated in lithium batteries based on new lithium borate ionic liquids at room temperature. The design concept of this class of lithium ionic liquids (LiILs) is based on an asymmetrically substituted central tetracoordinate boron atom with oligoethylene glycol groups, fluorinated electron-attracting groups, and one alkane group. The optimized borateLi+ LiILs show a high ionic conductivity value of >10−4 S cm−1 at 25 °C, high lithium transference numbers ( = 0.4 – 0.5) and electrochemical stability (>4 V). Some of the LiILs present high compatibility with lithium-metal electrodes showing stable polarization profiles in platting/stripping tests. The selected LiIL is investigated as single-component electrolytes in lithium-metal battery cells showing discharge capacity values in Li0/LiIL/lithium–iron phosphate and Li0/LiIL/lithium titanate cells of 124 and 75 mAh g−1, respectively, at a C-rate of 0.2 C and 65 °C with low-capacity loss.This work was funded and supported by a Grant for Basque Government through grant IT1309-19, and European Commission's funded Marie Skłodowska–Curie project POLYTE-EID (Project No. 765828) and Spanish MCIN/AEI/PID2020-119026GB-I00. G.G.-G. is grateful to “Secretaría de Educación, Ciencia, Tecnología e Innovación” from Ciudad de México for the postdoctoral fellowship through grant SECTEI/133/2019. G.G.-G. also thanks the PhD. IOSM for being the driving force and constant support

Investigación colombiana en enfermería. Un análisis bibliométrico de su visibilidad en ISI WoS (2001-2013)

Objective: Evaluate the performance of the Colombian scientific activity in nursing, visible at ISI WoS in the period 2001-2013 for know trends and regularities.Methods: A descriptive, cross-sectional and retrospective utility method is used in bibliometric analysis. The search was performed using Nursing and Colombia as descriptors, with which were obtained 133 records. After a normalization process, 118 documents published by 526 authors were reviewed to study the productivity variables as authors, institutions, descriptors and magazines as well as the timing distribución and collaborative networks of authors, descriptors and co-citation of authors and documents.Results: Displays a decrease in the annual production of documents, similar to the citations received per year. Spanish, as their primary language of publication of contributions, where 40% of the scientific production is published in the Journal Aquichán and 62.4% in universities of the country focusing on publishing issues in nursing care. Through the method of analysis of social networks are obtained matrices of collaboration and co-citation which allow us to conclude the existence of few highly cited authors, non-presence of strong collaborative relationships and diversity of terms related to clinical, administrative and social areas of nursing.Conclusions: The scientific activity has increased the amount of documents and annual quotes, aspect that has been gaining visibility and recognition in the international scientific community, aspect perceived at the indicators obtained in the investigation.Objetivo: Evaluar el comportamiento de la actividad científica colombiana en enfermería visible en ISI WoS en el período 2001-2013 para conocer tendencias y regularidades. Métodos: Se emplea el método descriptivo, transversal y retrospectivo de utilidad en los análisis bibliométricos. La búsqueda se realizó utilizando los descriptores Nursing y Colombia con lo cual se obtienen 133 registros. Luego de un proceso de normalización, se examinaron 118 documentos publicados por 526 autores para estudiar la productividad de variables como autores, instituciones, descriptores y revistas, así como la distribución temporal y las redes de colaboración de autores, descriptores y la co-citación de autores y documentos.Resultados: Se visualiza un decrecimiento en la producción anual de documentos, similar a las citas recibidas por año. El español como principal idioma de publicación de las contribuciones, donde el 40% de la producción científica está publicada en la Revista Aquichán y un 62.4% en universidades del país con enfoque a publicar sobre temas de cuidados en enfermería. Por medio del método de  análisis de Redes Sociales se obtienen matrices de colaboración y co-citación las cuales permiten concluir la existencia de pocos autores altamente citados, la no presencia de relaciones fuertes de colaboración y diversidad de términos relacionados con áreas clínicas, administrativas y sociales de la enfermería. Conclusiones: La actividad científica presenta un aumento en la cantidad de documentos y citas anuales, aspecto que ha llevado a ganar en visibilidad y reconocimiento en la comunidad científica internacional, aspecto que se percibe en los indicadores obtenidos en la investigación.

Natural Deep Eutectic Solvents Based on Choline Chloride and Phenolic Compounds as Efficient Bioadhesives and Corrosion Protectors

This work was supported by Marie Sklodowska-Curie Research and Innovation Staff Exchanges (RISE) under Grant Agreement No. 823989 “IONBIKE”. The financial supports received from CONICET and ANPCyT (Argentina) are also gratefully acknowledged. ). Publisher Copyright: © 2022 American Chemical Society. All rights reserved.Natural deep eutectics solvents (NADES), owing to their high solvation capacity and nontoxicity, are actively being sought for many technological applications. Herein, we report a series of novel NADES based on choline chloride and plant-derived polyphenols. Most of the obtained phenolic NADES have a wide liquid range and high thermal stability above 150 °C. Among them, small-sized polyphenols, like pyrogallol, vanillyl alcohol, or gentisic acid, lead to low-viscosity liquids with ionic conductivities in the order of 10-3S cm-1at room temperature. Interestingly, polyphenols possess valuable properties as therapeutic agents, antioxidants, adhesives, or redox-active compounds, among others. Thus, we evaluated the potential of these novel NADES for two applications: bioadhesives and corrosion protection. The mixture of choline chloride-vanillyl alcohol (2:3 mol ratio) and gelatin resulted in a highly adhesive viscoelastic liquid (adhesive stress ≈ 135 kPa), affording shear thinning behavior. Furthermore, choline chloride-tannic acid (20:1) showed an extraordinary ability to coordinate iron ions, reaching excellent corrosion inhibitive efficiencies in mild steel protection.publishersversionpublishe

Mixed Conductive, Injectable, and Fluorescent Supramolecular Eutectogel Composites

Funding Information: This work was supported by Marie Sklodowska‐Curie Research and Innovation Staff Exchanges (RISE) under the grant agreement No 823989 “IONBIKE”. The financial support received from CONICET and ANPCyT (Argentina) is also gratefully acknowledged. M. C.‐G. thanks Emakiker Grant Program of POLYMAT. L. C. T. is grateful to Fundação para a Ciência e a Tecnologia (FCT/MCTES) in Portugal for her research contract under Scientific Employment Stimulus (2020.01555.CEECIND), and Associate Laboratory for Green Chemistry—LAQV, which is also financed by FCT/MCTES (UIDB/50006/2020 and UIDP/50006/2020). D. M. thanks “Ayuda RYC2021‐031668‐I financiada por MCIN/AEI/10.13039/501100011033 y por la Unión Europea NextGenerationEU/PRTR”. The authors thank the technical and human support provided by SGIker (UPV/EHU/ERDF, EU). Funding Information: This work was supported by Marie Sklodowska-Curie Research and Innovation Staff Exchanges (RISE) under the grant agreement No 823989 “IONBIKE”. The financial support received from CONICET and ANPCyT (Argentina) is also gratefully acknowledged. M. C.-G. thanks Emakiker Grant Program of POLYMAT. L. C. T. is grateful to Fundação para a Ciência e a Tecnologia (FCT/MCTES) in Portugal for her research contract under Scientific Employment Stimulus (2020.01555.CEECIND), and Associate Laboratory for Green Chemistry—LAQV, which is also financed by FCT/MCTES (UIDB/50006/2020 and UIDP/50006/2020). D. M. thanks “Ayuda RYC2021-031668-I financiada por MCIN/AEI/10.13039/501100011033 y por la Unión Europea NextGenerationEU/PRTR”. The authors thank the technical and human support provided by SGIker (UPV/EHU/ERDF, EU). Publisher Copyright: © 2023 The Authors. Angewandte Chemie International Edition published by Wiley-VCH GmbH.Eutectogels are an emerging family of soft ionic materials alternative to ionic liquid gels and organogels, offering fresh perspectives for designing functional dynamic platforms in water-free environments. Herein, the first example of mixed ionic and electronic conducting supramolecular eutectogel composites is reported. A fluorescent glutamic acid-derived low-molecular-weight gelator (LMWG) was found to self-assemble into nanofibrillar networks in deep eutectic solvents (DES)/poly(3,4-ethylenedioxythiophene) (PEDOT): chondroitin sulfate dispersions. These dynamic materials displayed excellent injectability and self-healing properties, high ionic conductivity (up to 10−2 S cm−1), good biocompatibility, and fluorescence imaging ability. This set of features turns the mixed conducting supramolecular eutectogels into promising adaptive materials for bioimaging and electrostimulation applications.publishersversionpublishe

Percepción y Realidad del Secuestro en Nuevo León: Una Visión Multidisciplinaria en el Diagnóstico de Rutas, Perfiles y Zonas Detectadas Para su Prevención y Tratamiento

Durante el año 2012, un total de 18 académicos y profesionales procedentes de distintas disciplinas y apoyados por la UANL, Waldos y Asociados, la Procuraduría General de Justicia del Gobierno de Nuevo León y el Instituto Dipev, trabajaron específicamente en diversas técnicas metodológicas para analizar el fenómeno del secuestro en la entidad

Outcomes from elective colorectal cancer surgery during the SARS-CoV-2 pandemic

This study aimed to describe the change in surgical practice and the impact of SARS-CoV-2 on mortality after surgical resection of colorectal cancer during the initial phases of the SARS-CoV-2 pandemic

Nutritionally Enhanced Staple Food Crops

Crop biofortification is a sustainable and cost-effective strategy to address malnutrition in developing countries. This review synthesizes the progress toward developing seed micronutrient-dense cereals and legumes cultivars by exploiting natural genetic variation using conventional breeding and/or transgenic technology, and discusses the associated issues to strengthen crop biofortification research and development. Some major QTL for seed iron and zinc, seed phosphorus, and seed phytate in common bean, rice,J;md wheat have been mapped. An iron reductase QTL associated with seed-iron ~QTL is found in common bean where the genes coding for candidate enzymes involved in phytic acid synthesis have also been mapped. Candidate genes for Ipa co segregate with mutant phenotypes identified in rice and soybean. The Gpe-B1 locus in wild emmer wheat accelerates senescence and increases nutrient remobilization from leaves to developing seeds, and another gene named TtNAM-B1 affecting these traits has been cloned. Seed iron-dense common bean and rice in Latin America; seed iron-dense common bean in eastern and southern Africa;....

Reducing the environmental impact of surgery on a global scale: systematic review and co-prioritization with healthcare workers in 132 countries

Abstract Background Healthcare cannot achieve net-zero carbon without addressing operating theatres. The aim of this study was to prioritize feasible interventions to reduce the environmental impact of operating theatres. Methods This study adopted a four-phase Delphi consensus co-prioritization methodology. In phase 1, a systematic review of published interventions and global consultation of perioperative healthcare professionals were used to longlist interventions. In phase 2, iterative thematic analysis consolidated comparable interventions into a shortlist. In phase 3, the shortlist was co-prioritized based on patient and clinician views on acceptability, feasibility, and safety. In phase 4, ranked lists of interventions were presented by their relevance to high-income countries and low–middle-income countries. Results In phase 1, 43 interventions were identified, which had low uptake in practice according to 3042 professionals globally. In phase 2, a shortlist of 15 intervention domains was generated. In phase 3, interventions were deemed acceptable for more than 90 per cent of patients except for reducing general anaesthesia (84 per cent) and re-sterilization of ‘single-use’ consumables (86 per cent). In phase 4, the top three shortlisted interventions for high-income countries were: introducing recycling; reducing use of anaesthetic gases; and appropriate clinical waste processing. In phase 4, the top three shortlisted interventions for low–middle-income countries were: introducing reusable surgical devices; reducing use of consumables; and reducing the use of general anaesthesia. Conclusion This is a step toward environmentally sustainable operating environments with actionable interventions applicable to both high– and low–middle–income countries