TY  - JOUR
A1  - Pilas, Johanna
A1  - Yazici, Yasemen
A1  - Selmer, Thorsten
A1  - Keusgen, Michael
A1  - Schöning, Michael Josef
T1  - Optimization of an amperometric biosensor array for simultaneous measurement of ethanol, formate, d- and l-lactate
JF  - Electrochimica Acta
N2  - The immobilization of NAD+-dependent dehydrogenases, in combination with a diaphorase, enables the facile development of multiparametric sensing devices. In this work, an amperometric biosensor array for simultaneous determination of ethanol, formate, d- and l-lactate is presented. Enzyme immobilization on platinum thin-film electrodes was realized by chemical cross-linking with glutaraldehyde. The optimization of the sensor performance was investigated with regard to enzyme loading, glutaraldehyde concentration, pH, cofactor concentration and temperature. Under optimal working conditions (potassium phosphate buffer with pH 7.5, 2.5 mmol L-1 NAD+, 2.0 mmol L-1 ferricyanide, 25 °C and 0.4% glutaraldehyde) the linear working range and sensitivity of the four sensor elements was improved. Simultaneous and cross-talk free measurements of four different metabolic parameters were performed successfully. The reliable analytical performance of the biosensor array was demonstrated by application in a clarified sample of inoculum sludge. Thereby, a promising approach for on-site monitoring of fermentation processes is provided.
KW  - Simultaneous determination
KW  - Enzymatic biosensor
KW  - Diaphorase
KW  - Dehydrogenase
Y1  - 2017
U6  - http://dx.doi.org/10.1016/j.electacta.2017.07.119
SN  - 0013-4686
VL  - 251
SP  - 256
EP  - 262
PB  - Elsevier
CY  - Amsterdam
ER  - 
TY  - JOUR
A1  - Kirchner, Patrick
A1  - Oberländer, Jan
A1  - Friedrich, Peter
A1  - Berger, Jörg
A1  - Suso, Henri-Pierre
A1  - Kupyna, Andriy
A1  - Keusgen, Michael
A1  - Schöning, Michael Josef
T1  - Optimisation and fabrication of a calorimetric gas sensor built up on a polyimide substrate for H2O2 monitoring
JF  - Physica status solidi (a) : applications and material science. 208 (2011), H. 6
Y1  - 2011
SN  - 1862-6319
SP  - 1235
EP  - 1240
PB  - Wiley
CY  - Weinheim
ER  - 
TY  - JOUR
A1  - Schäfer, Horst
A1  - Shen, J.
A1  - Ossau, W.
A1  - Landwehr, G. (u.a.)
T1  - Optically Detected Cyclotron Resonance (ODCR) in n- and p-type GaAs/AlGaAs Heterostructures
Y1  - 1995
N1  - Als Poster vorgelegt auf der Frühjahrstagung der DPG in Berlin, 20.-24. März 1995, Verhandl. DPG (VI) 30, HL 33.79 / Physikalisches Institut der Universität Würzburg.
ER  - 
TY  - JOUR
A1  - Horbach, Andreas
A1  - Staat, Manfred
T1  - Optical strain measurement for the modeling of surgical meshes and their porosity
JF  - Current Directions in Biomedical Engineering
N2  - The porosity of surgical meshes makes them flexible for large elastic deformation and establishes the healing conditions of good tissue in growth. The biomechanic modeling of orthotropic and compressible materials requires new materials models and simulstaneoaus fit of deformation in the load direction as well as trannsversely to to load. This nonlinear modeling can be achieved by an optical deformation measurement. At the same time the full field deformation measurement allows the dermination of the change of porosity with deformation. Also the socalled effective porosity, which has been defined to asses the tisssue interatcion with the mesh implants, can be determined from the global deformation of the surgical meshes.
Y1  - 2018
U6  - http://dx.doi.org/10.1515/cdbme-2018-0045
SN  - 2364-5504
VL  - Band 4
IS  - 1
SP  - 181
EP  - 184
PB  - De Gruyter
CY  - Berlin
ER  - 
TY  - BOOK
A1  - Sander, Volker
T1  - Optical Network Infrastructure for Grid / Simeonidou, Dimitra ... (ed.)
Y1  - 2004
N1  - GFD-I.036 Category: Informational ; GHPN-RG
PB  - Global Grid Forum
ER  - 
TY  - JOUR
A1  - Micili, Serap C.
A1  - Valter, Markus
A1  - Oflaz, Hakan
A1  - Ozogul, Candan
A1  - Linder, Peter
A1  - Föckler, Nicole
A1  - Artmann, Gerhard
A1  - Digel, Ilya
A1  - Temiz Artmann, Aysegül
T1  - Optical coherence tomography : a potential tool to predict premature rupture of fetal membranes
JF  - Proceedings of the Institution of Mechanical Engineers. Part H : Journal of engineering in medicine
Y1  - 2013
SN  - 0046-2039 (Print) ; 2041-3033 (E-Journal)
VL  - Vol. 227
IS  - No. 4
SP  - 393
EP  - 401
PB  - Sage
CY  - London
ER  - 
TY  - JOUR
A1  - Stulpe, Werner
T1  - Operator
JF  - Compendium of Quantum Physics : concepts, experiments, history and philosophy / Daniel Greenberger ... ed.
Y1  - 2009
SN  - 978-3-540-70622-9
SP  - 440
EP  - 444
PB  - Springer
CY  - Berlin
ER  - 
TY  - CHAP
A1  - Bozakov, Zdravko
A1  - Sander, Volker
T1  - OpenFlow: A Perspective for Building Versatile Networks
T2  - Network-Embedded Management and Applications
Y1  - 2013
SN  - 978-1-4419-6769-5
U6  - http://dx.doi.org/10.1007/978-1-4419-6769-5_11
SP  - 217
EP  - 245
PB  - Springer
CY  - New York, NY
ER  - 
TY  - JOUR
A1  - Huck, Christina
A1  - Jolly, Christina
A1  - Wagner, Patrick
A1  - Poghossian, Arshak
A1  - Schöning, Michael Josef
T1  - One-chip integrated dual amperometric/field-effect sensor for the detection of dissolved hydrogen
JF  - Procedia Engineering. 25 (2011)
Y1  - 2011
SN  - 1877-7058
N1  - EurosensorsXXV ; Proc. Eurosensors XXV, September 4-7, 2011, Athens, Greece
SP  - 1161
EP  - 1164
PB  - Elsevier
CY  - Amsterdam
ER  - 
TY  - JOUR
A1  - Müller-Veggian, Mattea
A1  - Beuscher, H.
A1  - Haenni, D. R.
A1  - Gono, Y.
T1  - On-line experiments with the orange-β-spectrometer
JF  - Annual report 1977 / Institut für Kernphysik Kernforschungsanlage Jülich
Y1  - 1978
N1  - Spezielle Berichte der Kernforschungsanlage Jülich ; 15
SP  - 51
EP  - 52
PB  - Verlag des Forschungszentrums Jülich
CY  - Jülich
ER  -