1
|
Heidenreich N, Rütt U, Köppen M, Inge AK, Beier S, Dippel AC, Suren R, Stock N. A multi-purpose reaction cell for the investigation of reactions under solvothermal conditions. Rev Sci Instrum 2017; 88:104102. [PMID: 29092509 DOI: 10.1063/1.4999688] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
A new versatile and easy-to-use remote-controlled reactor setup aimed at the analysis of chemical reactions under solvothermal conditions has been constructed. The reactor includes a heating system that can precisely control the temperature inside the reaction vessels in a range between ambient temperature and 180 °C. As reaction vessels, two sizes of commercially available borosilicate vessels (Vmax = 5 and 11 ml) can be used. The setup furthermore includes the option of stirring and injecting of up to two liquid additives or one solid during the reaction to initiate very fast reactions, quench reactions, or alter chemical parameters. In addition to a detailed description of the general setup and its functionality, three examples of studies conducted using this setup are presented.
Collapse
Affiliation(s)
- N Heidenreich
- Institut für Anorganische Chemie, Christian-Albrechts-Universität zu Kiel, Kiel 24118, Germany
| | - U Rütt
- Deutsches-Elektronen-Synchrotron DESY, Notkestraße 85, 22607 Hamburg, Germany
| | - M Köppen
- Institut für Anorganische Chemie, Christian-Albrechts-Universität zu Kiel, Kiel 24118, Germany
| | - A Ken Inge
- Department of Materials and Environmental Chemistry and Berzelii Center EXSELENT on Porous Materials, Stockholm University, Stockholm S-106 91, Sweden
| | - S Beier
- Institut für Anorganische Chemie, Christian-Albrechts-Universität zu Kiel, Kiel 24118, Germany
| | - A-C Dippel
- Deutsches-Elektronen-Synchrotron DESY, Notkestraße 85, 22607 Hamburg, Germany
| | - R Suren
- Institut für Anorganische Chemie, Christian-Albrechts-Universität zu Kiel, Kiel 24118, Germany
| | - N Stock
- Institut für Anorganische Chemie, Christian-Albrechts-Universität zu Kiel, Kiel 24118, Germany
| |
Collapse
|
2
|
Köppen M, Beyer O, Wuttke S, Lüning U, Stock N. Synthesis, functionalisation and post-synthetic modification of bismuth metal–organic frameworks. Dalton Trans 2017. [DOI: 10.1039/c7dt01744h] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
Two new Bi-MOFs were discovered, synthesised and characterised, and the amino-functionalised Bi-MOF was post-synthetically modified using anhydrides and 1,3-propane sultone.
Collapse
Affiliation(s)
- M. Köppen
- Institut für Anorganische Chemie
- Christian-Albrechts-Universität zu Kiel
- 24118 Kiel
- Germany
| | - O. Beyer
- Otto-Diels-Institut für Organische Chemie
- Christian-Albrechts-Universität zu Kiel
- 24118 Kiel
- Germany
| | - S. Wuttke
- Department of Chemistry and Center for NanoScience (CeNS)
- LMU München
- 81377 München
- Germany
| | - U. Lüning
- Otto-Diels-Institut für Organische Chemie
- Christian-Albrechts-Universität zu Kiel
- 24118 Kiel
- Germany
| | - N. Stock
- Institut für Anorganische Chemie
- Christian-Albrechts-Universität zu Kiel
- 24118 Kiel
- Germany
| |
Collapse
|
3
|
Pardanaud C, Rusu MI, Martin C, Giacometti G, Roubin P, Ferro Y, Allouche A, Oberkofler M, Köppen M, Dittmar T, Linsmeier C. Hydrogen retention in beryllium: concentration effect and nanocrystalline growth. J Phys Condens Matter 2015; 27:475401. [PMID: 26558478 DOI: 10.1088/0953-8984/27/47/475401] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
We herein report on the formation of BeD2 nanocrystalline domes on the surface of a beryllium sample exposed to energetic deuterium ions. A polycrystalline beryllium sample was exposed to D ions at 2 keV/atom leading to laterally averaged deuterium areal densities up to 3.5 10(17) D cm(-2), and studied using nuclear reaction analysis, Raman microscopy, atomic force microscopy, optical microscopy and quantum calculations. Incorporating D in beryllium generates a tensile stress that reaches a plateau at ≈1.5 10(17) D cm(-2). For values higher than 2.0 10(17) cm(-2), we observed the growth of ≈90 nm high dendrites, covering up to 10% of the surface in some zones of the sample when the deuterium concentration was 3 × 10(17) D cm(-2). These dendrites are composed of crystalline BeD2, as evidenced by Raman microscopy and quantum calculations. They are candidates to explain low temperature thermal desorption spectroscopy peaks observed when bombarding Be samples with D ions with fluencies higher than 1.2 10(17) D cm(-2).
Collapse
Affiliation(s)
- C Pardanaud
- Laboratoire PIIM, Aix-Marseille Université/CNRS, Avenue escadrille Normandie-Niemen, 13397, Marseille, France
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
4
|
Endler M, Brucker B, Bykov V, Cardella A, Carls A, Dobmeier F, Dudek A, Fellinger J, Geiger J, Grosser K, Grulke O, Hartmann D, Hathiramani D, Höchel K, Köppen M, Laube R, Neuner U, Peng X, Rahbarnia K, Rummel K, Sieber T, Thiel S, Vorköper A, Werner A, Windisch T, Ye M. Engineering design for the magnetic diagnostics of Wendelstein 7-X. Fusion Engineering and Design 2015. [DOI: 10.1016/j.fusengdes.2015.07.020] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
5
|
Oberkofler M, Alegre D, Aumayr F, Brezinsek S, Dittmar T, Dobes K, Douai D, Drenik A, Köppen M, Kruezi U, Linsmeier C, Lungu C, Meisl G, Mozetic M, Porosnicu C, Rohde V, Romanelli S. Plasma–wall interactions with nitrogen seeding in all-metal fusion devices: Formation of nitrides and ammonia. Fusion Engineering and Design 2015. [DOI: 10.1016/j.fusengdes.2015.01.044] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
|
6
|
Riße K, Rummel T, Freundt S, Dudek A, Renard S, Bykov V, Köppen M, Langish S, Neilson G, Brown T, Chrzanowski J, Mardenfeld M, Malinowski F, Khodak A, Zhao X, Eksaa G. Design and manufacturing status of trim coils for the Wendelstein 7-X stellarator experiment. Fusion Engineering and Design 2013. [DOI: 10.1016/j.fusengdes.2013.02.045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
|
7
|
Köppen M, Kißlinger J, Rummel T, Mönnich T, Schauer F, Bykov V. Simulations of W7-X magnet system fault scenarios involving short circuits. Fusion Engineering and Design 2009. [DOI: 10.1016/j.fusengdes.2008.12.125] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
|
8
|
Rummel T, Mönnich T, Köppen M, Harmeyer E. Final tests of the power supply system for the W7-X superconducting magnet system. Fusion Engineering and Design 2009. [DOI: 10.1016/j.fusengdes.2008.12.068] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
|
9
|
Köppen M, Kißlinger J. Simulation of voltage and current development in the Wendelstein 7-X coil system taking into account fault conditions. Fusion Engineering and Design 2007. [DOI: 10.1016/j.fusengdes.2007.01.010] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
10
|
Köppen M, Simske JS, Sims PA, Firestein BL, Hall DH, Radice AD, Rongo C, Hardin JD. Cooperative regulation of AJM-1 controls junctional integrity in Caenorhabditis elegans epithelia. Nat Cell Biol 2001; 3:983-91. [PMID: 11715019 DOI: 10.1038/ncb1101-983] [Citation(s) in RCA: 234] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
The function of epithelial cell sheets depends on the integrity of specialized cell-cell junctions that connect neighbouring cells. We have characterized the novel coiled-coil protein AJM-1, which localizes to an apical junctional domain of Caenorhabditis elegans epithelia basal to the HMR-HMP (cadherin-catenin) complex. In the absence of AJM-1, the integrity of this domain is compromised. Proper AJM-1 localization requires LET-413 and DLG-1, homologues of the Drosophila tumour suppressors Scribble and Discs large, respectively. DLG-1 physically interacts with AJM-1 and is required for its normal apical distribution, and LET-413 mediates the rapid accumulation of both DLG-1 and AJM-1 in the apical domain. In the absence of both dlg-1 and let-413 function AJM-1 is almost completely lost from apical junctions in embryos, whereas HMP-1 (alpha-catenin) localization is only mildly affected. We conclude that LET-413 and DLG-1 cooperatively control AJM-1 localization and that AJM-1 controls the integrity of a distinct apical junctional domain in C. elegans.
Collapse
Affiliation(s)
- M Köppen
- Program in Cellular and Molecular Biology, University of Wisconsin-Madison, 1117 West Johnson Street, Madison, Wisconsin 53706, USA
| | | | | | | | | | | | | | | |
Collapse
|
11
|
Treugut H, Köppen M, Nickolay B, Füss R, Schmid P. [Kirlian photography: accidental or person-specific pattern?]. Forsch Komplementarmed Klass Naturheilkd 2000; 7:12-6. [PMID: 10800247 DOI: 10.1159/000057163] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
OBJECTIVE Is the corona electrography of Kirlian photography an accidental pattern or an individual specific discharge pattern? PATIENTS 30 patients of the Stauferklinik Schwäbisch Gmünd, suffering from a great variety of diseases. STUDY DESIGN At intervals of 10-15 min 10 Kirlian photos each of all fingers and toes were taken from each patient. Out of this material, from 8 patients 4 Kirlian photos each with evident similarity of the discharge radiographs of 3 fingers were selected. These images were scanned for mathematical procedures, and heuristic measurements of the histograms were evaluated by a genetic algorithm. RESULTS Three pattern groups showed different heuristic measurements: accidental pattern 0.28 +/- 0.01, Kirlian pattern in general 0.3 +/- 0.02, and Kirlian pattern of the same person 0.44 +/- 0.05. CONCLUSIONS The mathematical objectivation of the Kirlian photographs confirm the visual impression of strong similarity. Because of the lack of anatomical irregularities and since, due to new positioning, physical and chemical surface characteristics were changed in the single Kirlian photographs, the identification of the basic pattern stresses the existence of an individual discharge pattern and thus of an individual electromagnetic field.
Collapse
Affiliation(s)
- H Treugut
- Zentrale Radiologische Abteilung, Stauferklinik Schwäbisch Gmünd, Mutlangen, Deutschland
| | | | | | | | | |
Collapse
|
12
|
Abstract
BACKGROUND Colonic perforations associated with colonoscopy are rare but major complications. Conservative treatment is less invasive than major surgery, but any case of failure leads to more extensive surgical procedures with a higher morbidity and mortality than the immediate operative repair. To reduce the invasiveness of major surgery and avoid the risk of failure, we introduced laparoscopic techniques to deal with iatrogenic colonic perforations. METHODS Each colonic perforation was identified by diagnostic laparoscopy. The perforation was then characterized by size and extent of thermal damage into one of three types, followed by type-dependent treatment (suture, tangential resection, segmental resection, or open procedure). Operative time, complications, clinical outcome, and patient satisfaction were recorded. RESULTS Seven patients underwent diagnostic laparoscopy for colonic perforations. Laparoscopic treatment was performed on five patients (one simple closure by suture, three tangential resections, and one segmental resection). Two cases required open procedures. There was one intraoperative complication that necessitated conversion. There were no postoperative complications. All laparoscopically treated patients were satisfied with their clinical outcome and cosmetic results. CONCLUSIONS Laparoscopic treatment seems to reduce the invasiveness and morbidity of major surgery. At the same time, it is more definitive than conservative treatment, so that we now prefer to use laparoscopic techniques to treat colonic perforations related to colonoscopy.
Collapse
Affiliation(s)
- C Wullstein
- 1. Chirurgische Abteilung, Allgemeines Krankenhaus Barmbek, akademisches Lehrkrankenhaus der Universität Hamburg, Rübenkamp 148, 22291 Hamburg, Germany
| | | | | |
Collapse
|
13
|
Köppen M, Engelbrecht H. [Spreading possibilities of cosmopolitical intestinal helminths transmitted from warmer countries]. Z Gesamte Hyg 1969; 15:890-3. [PMID: 5372563] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
|
14
|
Köppen M. Ueber die Entlarvung von Simulation bei Geisteskranken. Dtsch Med Wochenschr 1907. [DOI: 10.1055/s-0029-1203121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
|
15
|
Hermanides SR, Köppen M. Ueber die Furchen und über den Bau der Grosshirnrinde bei den Lissencephalen insbesondere über die Localisation des motorischen Centrums und der Sehregion. ACTA ACUST UNITED AC 1903. [DOI: 10.1007/bf02228371] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
|
16
|
|
17
|
|