Microfluidic technologies are highly adept at generating controllable compositional gradients in fluids, a feature that has accelerated the understanding of the importance of chemical gradients in ...biological processes. That said, the development of versatile methods to generate controllable compositional gradients in the solid‐state has been far more elusive. The ability to produce such gradients would provide access to extensive compositional libraries, thus enabling the high‐throughput exploration of the parametric landscape of functional solids and devices in a resource‐, time‐, and cost‐efficient manner. Herein, the synergic integration of microfluidic technologies is reported with blade coating to enable the controlled formation of compositional lateral gradients in solution. Subsequently, the transformation of liquid‐based compositional gradients into solid‐state thin films using this method is demonstrated. To demonstrate efficacy of the approach, microfluidic‐assisted blade coating is used to optimize blending ratios in organic solar cells. Importantly, this novel technology can be easily extended to other solution processable systems that require the formation of solid‐state compositional lateral gradients.
Microfluidics and doctor blading are combined to define a novel processing scheme that enables the transfer of compositional gradients in solution to solid films. This versatile approach is exploited to generate blending ratio libraries in all‐polymer organic solar cells. The method is broadly applicable to other solution‐processable systems that require lateral compositional gradients for efficient, high‐throughput combinatorial screening.
Using mechanical exfoliation combined with a controlled double step transfer procedure we demonstrate that single layers of antimony can be readily produced. These flakes are not significantly ...contaminated upon exposure to ambient conditions and they do not react with water. DFT calculations confirm our experimental observations and predict a band gap of 1.2-1.3 eV (ambient conditions) for single layer antimonene, which is smaller than that calculated under vacuum conditions at 0 K. Our work confirms antimonene as a highly stable 2D material with promising relevant applications in optoelectronics.
Stabile Suspensionen …… aus hochwertigem, ein‐ oder mehrlagigem Antimonen können durch Flüssigphasenexfoliation von Antimon‐Kristallen unter Ultraschallbehandlung gewonnen werden, wie G. Abellán, F. ...Zamora et al. in der Zuschrift auf S. 14557 ff. beschreiben. Ein neues Material wurde so erhalten, das die Entwicklung einer Vielzahl von Anwendungen auf der Basis von Antimonen, beispielsweise im Bereich der Elektronik und Optoelektronik, erleichtern wird.
Sedation is necessary in the management of critically ill patients, both to alleviate suffering and to cure patients with diseases that require admission to the intensive care unit. Such sedation ...should be appropriate to the patient needs at each timepoint during clinical evolution, and neither too low (undersedation) nor too high (oversedation). Adequate sedation influences patient comfort, safety, survival, subsequent quality of life, bed rotation of critical care units and costs. Undersedation is detected and quickly corrected. In contrast, oversedation is silent and difficult to prevent in the absence of management guidelines, collective awareness and teamwork. The Zero Oversedation Project of the Sedation, Analgesia and Delirium Working Group of the Spanish Society of Intensive and Critical Care Medicine and Coronary Units aims to offer a practical teaching and collective awareness tool for ensuring patient comfort, safety and management with a view to optimizing the clinical outcomes and minimizing the deleterious effects of excessive sedation. The tool is based on a package of measures that include monitoring pain, analgesia, agitation, sedation, delirium and neuromuscular block, keeping patients pain-free, performing dynamic sedation according to clinical objectives, agreeing upon the multidisciplinary protocol to be followed, and avoiding deep sedation where not clinically indicated.
La sedación es necesaria en el tratamiento de los pacientes críticos, tanto para aliviar el sufrimiento como para curar a los pacientes con enfermedades que precisan el ingreso en unidades de cuidados intensivos. Esta sedación debe ser la adecuada a las necesidades del paciente en cada momento de su evolución clínica, ni por debajo (infrasedación) ni por encima (sobresedación). Una sedación adecuada influye en la comodidad, la seguridad, la supervivencia, la calidad de vida posterior, la rotación de camas de las unidades de críticos y los costes. La infrasedación se detecta y corrige rápidamente. Sin embargo, la sobresedación es silente y difícil de prevenir sin unas pautas de actuación, una concienciación colectiva y un trabajo en equipo. El proyecto «Sobresedación Zero» del Grupo de Trabajo de Sedación, Analgesia y Delirium de la Sociedad Española de Medicina Intensiva, Crítica y Unidades Coronarias pretende ser una herramienta docente, práctica y de concienciación colectiva de comodidad, seguridad y gestión para maximizar el resultado clínico y minimizar los efectos perjudiciales de la sedación excesiva. Se basa en un paquete de medidas que se incluye monitorizar el dolor, la analgesia, la agitación, la sedación, el delirium y el bloqueo neuromuscular, mantener a los pacientes sin dolor, realizar una sedación dinámica según objetivos clínicos, consensuar el protocolo multidisciplinar a seguir y evitar la sedación profunda no indicada clínicamente.
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