TY  - JOUR
A1  - Werner, Frederik
A1  - Wagner, Torsten
A1  - Yoshinobu, Tatsuo
A1  - Keusgen, Michael
A1  - Schöning, Michael Josef
T1  - Frequency behaviour of light-addressable potentiometric sensors
JF  - Physica Status Solidi (A)
N2  - Light-addressable potentiometric sensors (LAPS) are semiconductor-based potentiometric sensors, with the advantage to detect the concentration of a chemical species in a liquid solution above the sensor surface in a spatially resolved manner. The addressing is achieved by a modulated and focused light source illuminating the semiconductor and generating a concentration-depending photocurrent. This work introduces a LAPS set-up that is able to monitor the electrical impedance in addition to the photocurrent. The impedance spectra of a LAPS structure, with and without illumination, as well as the frequency behaviour of the LAPS measurement are investigated. The measurements are supported by electrical equivalent circuits to explain the impedance and the LAPS-frequency behaviour. The work investigates the influence of different parameters on the frequency behaviour of the LAPS. Furthermore, the phase shift of the photocurrent, the influence of the surface potential as well as the changes of the sensor impedance will be discussed.
Y1  - 2013
U6  - https://doi.org/10.1002/pssa.201200929
SN  - 1521-396X ; 0031-8965
VL  - 210
IS  - 5
SP  - 884
EP  - 891
PB  - Wiley-VCH
CY  - Weinheim
ER  - 
TY  - JOUR
A1  - Schiffels, Johannes
A1  - Pinkenburg, Olaf
A1  - Schelden, Maximilian
A1  - Aboulnaga, El-Hussiny A. A.
A1  - Baumann, Marcus
A1  - Selmer, Thorsten
T1  - An innovative cloning platform enables large-scale production and maturation of an oxygen-tolerant [NiFe]-hydrogenase from cupriavidus necator in Escherichia coli
JF  - PLOS one. 2013
Y1  - 2013
U6  - https://doi.org/10.1371/journal.pone.0068812
SN  - 1932-6203
PB  - Public Library of Science
CY  - San Francisco, California
ER  - 
TY  - JOUR
A1  - Müller, Karsten
A1  - Billmaier, Karl
A1  - Müller, Ernst A.
T1  - Abwasserwärmenutzung
JF  - Wasserwirtschaft, Wassertechnik : wwt. 2013, H. 5
Y1  - 2013
SN  - 1438-5716
SP  - 24
EP  - 26
PB  - Deutscher Fachverlag
CY  - Frankfurt am Main
ER  - 
TY  - JOUR
A1  - Timme, Michael
T1  - Begrenzung von Mietbürgschaften gem. § 551 Abs. 4 BGB?
JF  - Monatsschrift für deutsches Recht : MdR
Y1  - 2013
SN  - 0340-1812 (Print) ; 2194-4202 (E-Journal)
VL  - 16
SP  - 948
EP  - 949
PB  - Verlag Dr. Otto Schmidt
CY  - Köln
ER  - 
TY  - JOUR
A1  - Timme, Michael
T1  - Begrenzung von Mietbürgschaften gem. § 551 Abs. 4 BGB?
JF  - Der Miet-Rechts-Berater : MietRB
Y1  - 2013
SN  - 1612-040X
IS  - 8
SP  - 248
EP  - 249
PB  - Verlag Dr. Otto Schmidt
CY  - Köln
ER  - 
TY  - JOUR
A1  - Schneider, Bettina
A1  - Schneider, Wilhelm
T1  - Rechnungslegung nach IFRS im Vergleich zum HGB
JF  - Das Wirtschaftsstudium : wisu ; Zeitschrift für Ausbildung, Examen, Berufseinstieg und Fortbildung
Y1  - 2013
SN  - 0340-3084
SP  - 536
EP  - 541
PB  - Lange
CY  - Düsseldorf
ER  - 
TY  - JOUR
A1  - Müller, Thomas
T1  - Aufweichung der Gewaltenteilung und Demokratieverlust - Achtung vor dem Parlament. Darstellung einer Rechtschöpfung der Exekutive im Umfeld des §15 AStG
JF  - Der Betrieb
Y1  - 2013
SN  - 0005-9935
IS  - 11
SP  - 542
EP  - 548
PB  - Fachmedien Otto Schmidt
CY  - Düsseldorf
ER  - 
TY  - JOUR
A1  - Itabashi, Akinori
A1  - Kosaka, Naoki
A1  - Miyamoto, Ko-ichiro
A1  - Wagner, Torsten
A1  - Schöning, Michael Josef
T1  - High-speed chemical imaging system based on front-side-illuminated LAPS
JF  - Sensors and actuators B: Chemical
N2  - The chemical imaging sensor is a semiconductor-based chemical sensor that can visualize the spatial distribution of specific ions on the sensing surface. The conventional chemical imaging system based on the light-addressable potentiometric sensor (LAPS), however, required a long time to obtain a chemical image, due to the slow mechanical scan of a single light beam. For high-speed imaging, a plurality of light beams modulated at different frequencies can be employed to measure the ion concentrations simultaneously at different locations on the sensor plate by frequency division multiplex (FDM). However, the conventional measurement geometry of back-side illumination limited the bandwidth of the modulation frequency required for FDM measurement, because of the low-pass filtering characteristics of carrier diffusion in the Si substrate. In this study, a high-speed chemical imaging system based on front-side-illuminated LAPS was developed, which achieved high-speed spatiotemporal recording of pH change at a rate of 70 frames per second.
Y1  - 2013
U6  - https://doi.org/10.1016/j.snb.2013.03.016
SN  - 1873-3077
VL  - 182
SP  - 315
EP  - 321
PB  - Elsevier
CY  - Amsterdam
ER  - 
TY  - JOUR
A1  - Frings, Michael
T1  - Änderungen zur Haftung und Vergütung im Vereins- und Stiftungsrecht
JF  - Neue Wirtschaftsbriefe NWB Steuer- und Wirtschaftsrecht
Y1  - 2013
SN  - 0028-3460
N1  - Fundstelle SAAAE-30695
SP  - 693
EP  - 699
PB  - NWB Verlag
CY  - Herne
ER  - 
TY  - JOUR
A1  - Frings, Michael
T1  - Begrenzung von vertraglichen Höchstfristen für Zahlungen und Abnahmen
JF  - Neue Wirtschaftsbriefe NWB Steuer- und Wirtschaftsrecht
Y1  - 2013
SN  - 0028-3460
N1  - Fundstelle WAAAE-25903
SP  - 49
EP  - 56
PB  - NWB Verlag
CY  - Herne
ER  - 
TY  - JOUR
A1  - Kern, Alexander
A1  - Braun, Christian
T1  - Neuerungen bei der Blitzschutznorm. Teil 2
JF  - etz Elektrotechnik und Automation
Y1  - 2013
SN  - 0170-1711
N1  - Printausg. in der Bibliothek der FH Aachen vorhanden: 23 Z 133 ; 63 ZS 035
VL  - Bd. 134
IS  - H. 8
SP  - 66
EP  - 69
PB  - VDE-Verlag
CY  - Wuppertal
ER  - 
TY  - JOUR
A1  - Reisgen, Uwe
A1  - Schleser, Markus
A1  - Schiebahn, Alexander
T1  - Untersuchung zum Einfluss von Maschineneigenschaften von Schweißzangen zum Widerstandspunktschweißen auf das Schweißergebnis
JF  - Schweissen und Schneiden : Fachzeitschrift für Schweißen und verwandte Verfahren
Y1  - 2013
SN  - 0036-7184
VL  - Bd. 65
IS  - H. 6
SP  - 309
EP  - 313
PB  - DVS Verl.
CY  - Düsseldorf
ER  - 
TY  - JOUR
A1  - Ramazani, Ali
A1  - Li, Yang
A1  - Mukherjee, Krishnendu
A1  - Prahl, Ulrich
A1  - Bleck, Wolfgang
A1  - Abdurakhmanov, Aydemir
A1  - Schleser, Markus
A1  - Reisgen, Uwe
T1  - Microstructure evolution simulation in hot rolled DP600 steel during gas metal arc welding
JF  - Computational materials science
Y1  - 2013
SN  - 1879-0801 (E-Book); 0927-0256 (Print)
VL  - Vol. 68
SP  - 107
EP  - 116
PB  - Elsevier
CY  - Amsterdam
ER  - 
TY  - JOUR
A1  - Reisert, Steffen
A1  - Geissler, Hanno
A1  - Flörke, Rudolf
A1  - Weiler, Christian
A1  - Wagner, Patrick
A1  - Schöning, Michael Josef
T1  - Characterisation of aseptic sterilisation processes using an electronic nose
JF  - International journal of nanotechnology
Y1  - 2013
SN  - 1475-7435 (Print) 7141-8151 (Online)
VL  - Vol. 10
IS  - No. 5-7
SP  - 470
EP  - 484
PB  - Inderscience Enterprises
CY  - Genève
ER  - 
TY  - JOUR
A1  - Schneider, Bettina
A1  - Schneider, Wilhelm
A1  - Kinder, Stephanie
A1  - Meinhardt, Kerstin
T1  - Die Fallstudie: Besteuerung außerordentlicher Einkünfte bei der Einkommensteuer
JF  - Das Wirtschaftsstudium : wisu ; Zeitschrift für Ausbildung, Prüfung, Berufseinstieg und Fortbildung
Y1  - 2013
SN  - 0340-3084
VL  - 42
IS  - 11
SP  - 1432
EP  - 1434
PB  - Lange
CY  - Düsseldorf
ER  - 
TY  - JOUR
A1  - Döring, Bernd
A1  - Kendrick, C.
A1  - Lawson, R. M.
T1  - Thermal capacity of composite floor slabs
JF  - Energy and buildings
Y1  - 2013
SN  - 1872-6178 (E-Journal); 0378-7788 (Print)
VL  - Vol. 67
SP  - 531
EP  - 539
PB  - Elsevier
CY  - Amsterdam
ER  - 
TY  - JOUR
A1  - Miyamoto, Ko-ichiro
A1  - Hirayama, Yuji
A1  - Wagner, Torsten
A1  - Schöning, Michael Josef
A1  - Yoshinobu, Tatsuo
T1  - Visualization of enzymatic reaction in a microfluidic channel using chemical imaging sensor
JF  - Electrochimica acta
Y1  - 2013
SN  - 1873-3859 (E-Journal); 0013-4686 (Print)
SP  - Publ. online
PB  - Elsevier
CY  - Amsterdam
ER  - 
TY  - JOUR
A1  - Hegger, Josef
A1  - Claßen, Martin
A1  - Schaumann, Peter
A1  - Sothmann, Jörg
A1  - Feldmann, Markus
A1  - Döring, Bernd
T1  - Entwicklung einer integrierten Verbunddecke für nachhaltige Stahlbauten
JF  - Stahlbau
Y1  - 2013
SN  - 1437-1049 (E-Journal); 0038-9145 (Print)
VL  - Vol. 82
IS  - Iss. 1
SP  - 11
EP  - 17
PB  - Wiley
CY  - Weinheim
ER  - 
TY  - JOUR
A1  - Sabitova, A.
A1  - Ebert, Ph.
A1  - Lenz, A.
A1  - Schaafhausen, S.
A1  - Ivanova, L.
A1  - Dähne, M.
A1  - Hoffmann, A.
A1  - Dunin-Borkowski, R. E.
A1  - Förster, Arnold
A1  - Grandidier, B.
A1  - Eisele, H.
T1  - Intrinsic bandgap of cleaved ZnO(112¯0) surfaces
JF  - Applied physics letters
Y1  - 2013
SN  - 1077-3118 (E-Journal); 0003-6951 (Print)
VL  - Vol. 102
SP  - 021608
ER  - 
TY  - JOUR
A1  - Jiminez German, Salvador
A1  - Behbahani, Mehdi
A1  - Miettinen, Susanna
A1  - Grijpma, Dirk W.
A1  - Haimi, Suvi P.
T1  - Proliferation and differentiation of adipose stem cells towards smooth muscle cells on poly(trimethylene carbonate) membranes
JF  - Macromolecular symposia
Y1  - 2013
SN  - 0258-0322
VL  - Vol. 334
IS  - Iss. 1
SP  - 133
EP  - 142
PB  - Wiley
CY  - Weinheim
ER  -