TY - GEN A1 - Delaney, Tetyana L. A1 - Zimin, Denys A1 - Rahm, Michael A1 - Weiss, Dieter A1 - Wolfbeis, Otto S. A1 - Mirsky, Vladimir M. T1 - Capacitive detection in ultrathin chemosensors prepared by molecularly imprinted grafting photopolymerization T2 - Analytical Chemistry N2 - The usual applications of capacitive detection in chemo- and biosensors are based on changes in effective thickness of insulating layers due to adsorption of analyte onto receptors. Ultrathin chemosensors based on molecularly imprinted polymerization enable a realization of another capacitive approach that exploits changes in electrical capacitance due to modification of the dielectric constant of the polymer. Such chemosensors were prepared by photografted molecularly imprinted polymerization on the surface of gold electrodes. An adsorbed layer of hydrophobic photoinitiator (benzophenone) provided grafted polymerization on the surface of the alkanethiol-modified gold electrode. The chemosensors were characterized by cyclic voltammetry, impedance spectroscopy, and scanning electron and atomic force microscopy. Binding of analyte was detected by measurements of electrical capacitance. The results indicate a decrease of the dielectric constant of the polymer layer due to analyte binding up to 20%. Y1 - 2007 U6 - https://doi.org/10.1021/ac062143v SN - 0003-2700 SN - 1520-6882 VL - 79 IS - 8 SP - 3220 EP - 3225 ER - TY - CHAP A1 - Janke, Christian A1 - Goller, M. A1 - Martin, Ivo A1 - Gaun, Lilia A1 - Bestle, Dieter T1 - 3D-CFD Compressor Map Computation of a Multi-Stage Axial Compressor with Off-Design Adjusted Rotor Geometries T2 - ASME Turbo Expo 2016, Turbomachinery Technical Conference and Exposition, Volume 7A, Structures and Dynamics, Seoul, South Korea, June 13–17, 2016 Y1 - 2016 SN - 978-0-7918-4983-5 N1 - Paper No. GT2016-56745 PB - ASME CY - New York, NY [u.a.] ER - TY - GEN A1 - Hirsch, Thomas A1 - Zharnikov, Michael A1 - Shaporenko, Andrey A1 - Stahl, Joachim A1 - Weiss, Dieter A1 - Wolfbeis, Otto S. A1 - Mirsky, Vladimir M. T1 - Size-controlled electrochemical synthesis of metallic nanoparticles on molecular templates T2 - Angewandte Chemie International Edition N2 - Reduction on the spot: Planarly adsorbed thiolated porphyrin molecules (purple) incorporated in an insulating alkanethiol monolayer (blue) function as nanoelectrodes for the local reduction of metals (gray). This approach was applied for the in situ synthesis of nanoparticles of a predetermined size. Y1 - 2005 U6 - https://doi.org/10.1002/anie.200500912 SN - 1521-3773 VL - 44 IS - 41 SP - 6775 EP - 6778 ER - TY - GEN A1 - Hao, Qingli A1 - Rahm, Michael A1 - Weiss, Dieter A1 - Mirsky, Vladimir M. T1 - Morphology of electropolymerized poly (N-methylaniline) films T2 - Microchimica Acta N2 - The influence of polymerization conditionson the morphology of thin films of poly-(N-methylani-line) (PNMA) was studied. The films were prepared byelectropolymerization on gold and platinum electrodesand studied by optical and electron microscopy. It wasdemonstrated that the film morphology does notdepend on the polymerization rate or on the electrodemetal.However,itissensitivetothekindofcounterionofPNMA.Thepolymerscontainingacetate orchloridedo not form stable films. Polymer films containingphosphate or sulfate display inhomogeneous struc-tures. A formation of sprouts and ‘‘nanotubes’’ wasobserved for PNMA sulfate. The films formed byPNMA perchlorate are smooth and transparent(glass-likestructure).Asublayerof4-aminothiophenolincreases the adhesion of polymers to the gold surface. KW - Poly-(N-methylaniline) KW - polyaniline derivatives KW - electropolymerization KW - film morphology Y1 - 2003 U6 - https://doi.org/10.1007/s00604-003-0063-8 SN - 0026-3672 SN - 1436-5073 VL - 143 IS - 2 SP - 147 EP - 153 ER - TY - GEN A1 - Haas, M. A1 - Wirachowski, K. A1 - Küpper, Jan-Heiner A1 - Schrenk, Dieter A1 - Fahrer, J. T1 - Structure‐dependent genotoxicity and cytotoxicity of eleven pyrrolizidine alkaloids in human liver cells with CYP3A4 overexpression T2 - Lebensmittelchemie : Volume 75: Vorträge und Poster des 49. Deutschen Lebensmittelchemikertags Y1 - 2021 U6 - https://doi.org/10.1002/lemi.202158135 SN - 0937-1478 SN - 1521-3811 SP - S134 ER - TY - CHAP A1 - Grünewald, Holger A1 - Eberts, Jörg A1 - Grundmann, Philipp A1 - Murn, Y. A1 - Hofmann, M. A1 - Rock, J. A1 - Schneider, Bernd Uwe A1 - Hüttl, Reinhard F. A1 - Murach, Dieter T1 - Anbaustrategien von Agrargehölzen unter besonderer Berücksichtigung der Baumartenauswahl T2 - Anbau und Nutzung von Bäumen auf landwirtschaftlichen Flächen, 2. Fachtagung vom 2.-4. Juli 2007 in Freiburg Y1 - 2007 SP - 47 EP - 51 PB - Univ. CY - Freiburg i. Breisgau ER -