"Diese Publikation erscheint anlässlich der Ausstellung Michael Müller: Der geschenkte Tag. Kastor & Polydeukes. Städel Museum, Frankfurt am Main 14. Oktober 2022 - 23. April 2023" - Impressum
Ausstellungskatalog -- Städel Museum -- 14.10.2022-23.04.2023 -- Frankfurt am Main; InterviewMüller, MichaelKünstlerMalerIngelheim am RheinBerlin1970-
Ernstes Spiel - Catalogue Raisonné / Michael Müller
Ernstes Spiel - Catalogue Raisonné / Michael Müller ; volume 1,4
von Martin Metzenmacher ; Frank Griesinger ; Horst-Dieter Hummel ; Corinna Elender ; Harald Schäfer ; Maike de Wit ; Ulrich Kaiser ; Jens Kern ; Martina Jänicke ; Lisa Spring ; Stefan Zacharias ; Anja Kaiser-Osterhues ; Annika Groth ; Annette Hipper ; Gregor Zaun ; Steffen Dörfel ; Björn Güldenzoph ; Lothar Müller ; Jens Uhlig ; Michael Thomas ; Martin Sebastian ; Wilfried E. E. Eberhardt
In Bezug auf nachhaltige Energien sind fortschrittliche Energiespeichertechnologien entscheidend. Dabei gewinnen alternative Batterie-Elektrolyte für Sicherheit und Umwelt an Bedeutung. Die Kernspinresonanzspektroskopie (NMR) hilft, solche Materialien zu verstehen und zu optimieren. Die Festkörper-NMR gibt Einblicke in Strukturen und Ionen-Dynamik. Diese Arbeit verbindet Grundlagen der Materialwissenschaft mit praktischer Energiespeicherung durch Festkörper-NMR in nachhaltiger Energieforschung. Der erste Teil fokussiert auf Succinonitril-basierte Materialien mit Polymeren zur Erhöhung der Li-Ionen-Leitfähigkeit. Weitere Experimente erfolgen unter realen Batteriebedingungen. Der zweite Teil erforscht Na-β"-Aluminat, mit dem Ziel Betriebstemperaturen zu senken. Die Analyse umfasst die Identifizierung von Na-Spezies, den 3d-Übergangsmetalleinfluss und den Austausch von Na- zu Li-Ionen.
In the field of sustainable energy, advanced energy storage is crucial. Alternative electrolytes gain interest for safety and environmental benefits. Nuclear magnetic resonance (NMR) spectroscopy helps with understanding and optimising materials. Solid-state NMR delves into structures and ion dynamics, providing insights into interactions and ion parameters. This work aims to bridge fundamental materials science and practical energy storage, utilising solid-state NMR within sustainable energy research. The first part focuses on succinonitrile-based materials, enhancing Li-ion conductivity with polymers. Investigations assess polymer impact and Li-concentrations, revealing varying interactions and ion environments. The most promising material is tested in realistic battery cell conditions. The second part explores Na-β"-alumina electrolytes, aiming to lower operating temperatures. Analysis includes identifying Na-species, characterising 3d transition metal influence, and investigating the Na to Li-ion exchange.
von Juliane K. Müller ; Kira F. Ahrens ; Michael Bauer ; Bernhard T. Baune ; Stefan Borgwardt ; Jürgen Deckert ; Katharina Domschke ; Regina Ellwanger ; Andreas Fallgatter ; Thomas Frodl ; Jürgen Gallinat ; René Gottschalk ; Hans Jörgen Grabe ; Alkomiet Hasan ; Sabine Herpertz ; René Hurlemann ; Frank Jessen ; Joseph Kambeitz ; Tilo Kircher ; Johannes Kornhuber ; Klaus Lieb ; Andreas Meyer-Lindenberg ; Rainer Rupprecht ; Norbert Scherbaum ; Christiane Schlang ; Anja Schneider ; Georg Schomerus ; Andreas Thoma ; Stefan Unterecker ; Martin Walter ; Henrik Walter ; Andreas Reif ; Christine Reif-Leonhard
In Bezug auf nachhaltige Energien sind fortschrittliche Energiespeichertechnologien entscheidend. Dabei gewinnen alternative Batterie-Elektrolyte für Sicherheit und Umwelt an Bedeutung. Die Kernspinresonanzspektroskopie (NMR) hilft, solche Materialien zu verstehen und zu optimieren. Die Festkörper-NMR gibt Einblicke in Strukturen und Ionen-Dynamik. Diese Arbeit verbindet Grundlagen der Materialwissenschaft mit praktischer Energiespeicherung durch Festkörper-NMR in nachhaltiger Energieforschung. Der erste Teil fokussiert auf Succinonitril-basierte Materialien mit Polymeren zur Erhöhung der Li-Ionen-Leitfähigkeit. Weitere Experimente erfolgen unter realen Batteriebedingungen. Der zweite Teil erforscht Na-β"-Aluminat, mit dem Ziel Betriebstemperaturen zu senken. Die Analyse umfasst die Identifizierung von Na-Spezies, den 3d-Übergangsmetalleinfluss und den Austausch von Na- zu Li-Ionen.
In the field of sustainable energy, advanced energy storage is crucial. Alternative electrolytes gain interest for safety and environmental benefits. Nuclear magnetic resonance (NMR) spectroscopy helps with understanding and optimising materials. Solid-state NMR delves into structures and ion dynamics, providing insights into interactions and ion parameters. This work aims to bridge fundamental materials science and practical energy storage, utilising solid-state NMR within sustainable energy research. The first part focuses on succinonitrile-based materials, enhancing Li-ion conductivity with polymers. Investigations assess polymer impact and Li-concentrations, revealing varying interactions and ion environments. The most promising material is tested in realistic battery cell conditions. The second part explores Na-β"-alumina electrolytes, aiming to lower operating temperatures. Analysis includes identifying Na-species, characterising 3d transition metal influence, and investigating the Na to Li-ion exchange.
Background - Data about ventricular tachycardia (VT) ablation in patients with electrical storm (ES) is limited. - Objectives - This study sought to compare the prognostic outcome of patients undergoing VT ablation after ES with and without a septal substrate. - Methods - In this large single-center study, consecutive patients presenting with ES and undergoing VT ablation from June 2018 to April 2021 were included. Patients with septal substrate were compared with patients without septal substrate regarding endpoints of cardiovascular mortality, VT recurrences, recurrences of the clinical VT, and rehospitalization rates. - Results - A total of 107 patients undergoing a first VT ablation because of electrical storm (ES) were included (age 65 ± 13 years, 86% male, 45% ischemic cardiomyopathy). Major complications occurred in 11% of all patients with increased postinterventional third-degree atrioventricular blocks among patients with septal substrate (9% vs 0%; P = 0.063). Partial ablation successes were similar (95% with a septal substrate vs 100% without a septal substrate; P = 0.251). Complete ablation success was achieved in 63% with a septal substrate and in 87% without a septal substrate (P = 0.004). After a median 22 months of follow-up, patients with septal substrate died significantly more often from cardiovascular causes (26% vs 7%; log-rank P = 0.018). In univariate analysis cardiovascular mortality for ES patients with septal substrate was 4.1-fold higher (HR: 4.192; CI: 1.194-14.719; P = 0.025). Independent predictors of adverse outcome in multivariable regression analysis were presence of septal substrate (HR: 5.723; P = 0.025) and increased age (HR: 1.104; P = 0.003). Recurrences of any ventricular arrhythmia (67% vs 56%; log rank P = 0.554) and rehospitalization rates (80% vs 66%; log rank P = 0.515) were similar between groups. Recurrences of clinical VT were similar (7% vs 2%; P = 0.252). - Conclusions - Presence of a septal substrate is associated with adverse long-term cardiovascular mortality in patients admitted for VT ablation after ES. Despite decreased acute ablation successes in these patients, VT recurrence rates were similar to those without a septal substrate during follow-up.
von Julian Müller ; Karin Nentwich ; Artur Berkovitz ; Elena Ene ; Kai Sonne ; Vitaly Zhuravlev ; Ivaylo Chakarov ; Sebastian Barth ; Christian Waechter ; Michael Behnes ; Philipp Halbfaß ; Thomas Deneke
Pulmonary vein isolation using radiofrequency ablation is an effective treatment option for patients with symptomatic atrial fibrillation (AF). Application of high power over a short period of time (HPSD) is reported to create more efficient lesions and may prevent collateral thermal oesophageal injury. This study aims to compare efficacy and safety of two different HPSD ablation approaches using different ablation index settings.Consecutive patients undergoing AF ablation with HPSD (50 W; ablation index-guided) using the ThermoCool SmartTouch SF catheter were included. Patients were grouped by ablation protocol: ablation with target ablation index (AI) of 400 on the anterior left atrial wall vs. 300 at the posterior left atrial wall (AI 400/300) or AI 450/350 was performed upon the operator’s preference and compared. Peri-procedural parameters and complications were recorded, and incidences of endoscopically detected thermal oesophageal lesions (EDEL) analysed. Recurrence rates after a mean follow-up of 25 ± 7 months and reconnection patterns in patients undergoing redo procedures were investigated. A total of 795 patients (67 ± 10 years; 58% male; 48% paroxysmal AF) underwent a first AF ablation with HPSD (211 in group AI 400/300 and 584 in group 450/350). Median procedure time was 82.9 ± 24.6 min with longer ablation times in patients with target AI 400/300 due to higher intraprocedural reconnection rates, increased box lesions, and additional right atrial isthmus ablations. One hundred three patients (16%) underwent a redo procedure during follow-up documented comparable pulmonary vein (PV) reconnection among groups. Multivariate predictors of AF recurrence were age, left atrium (LA) size, persistent AF, and extra-PV ablation targets.High-power short-duration AF ablation with target AI of 400 for non-posterior wall and 300 for posterior wall lesions resulted in comparable long-term results compared to higher AI (450/350) ablations with significantly lower risk for thermal oesophageal lesions. Older age, larger LA size, persistent AF, and extra-PV ablation targets were identified in a multivariate analysis as independent risk factors for recurrences of atrial arrhythmias.
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