TY  - JOUR
A1  - Schöning, Michael Josef
A1  - Arzdorf, M.
A1  - Mulchandani, P.
A1  - Chen, W.
A1  - Mulchandani, A.
T1  - A capacitive field-effect sensor for the direct determination of organophosphorus pesticides
JF  - Sensors and Actuators B. 91 (2003), H. 1-3
Y1  - 2003
SN  - 0925-4005
SP  - 92
EP  - 97
ER  - 
TY  - JOUR
A1  - Bohrn, Ulrich
A1  - Mucha, Andreas
A1  - Werner, Frederik
A1  - Trattner, Barbara
A1  - Bäcker, Matthias
A1  - Krumbe, Christoph
A1  - Schienle, Meinrad
A1  - Stütz, Evamaria
A1  - Schmitt-Landsiedel, Doris
A1  - Fleischer, Maximilian
A1  - Wagner, Patrick
A1  - Schöning, Michael Josef
T1  - A critical comparison of cell-based sensor systems for the detection of Cr (VI) in aquatic environment
JF  - Sensors and actuators. B: Chemical
Y1  - 2013
SN  - 1873-3077 (E-Journal); 0925-4005 (Print)
VL  - Vol. 182
SP  - 58
EP  - 65
PB  - Elsevier
CY  - Amsterdam
ER  - 
TY  - JOUR
A1  - Schöning, Michael Josef
A1  - Krause, R.
A1  - Block, K.
A1  - Musameh, M.
A1  - Mulchandani, A.
A1  - Wang, J.
T1  - A dual amperometric / potentiometric FIA-based biosensor for the distinctive detection of organophosphorus pesticides
JF  - Book of abstracts / ed. by J. Saneistr.
Y1  - 2002
SN  - 80-01-02576-4
N1  - Eurosensors ; (16, 2002, Praha)
SP  - 76
EP  - 79
PB  - Czech Technical University, Faculty of Electrical Engineering, Department of Measurement
CY  - Prague
ER  - 
TY  - JOUR
A1  - Schöning, Michael Josef
A1  - Krause, R.
A1  - Block, K.
A1  - Musahmeh, M.
A1  - Mulchandani, A.
A1  - Wang, J.
T1  - A dual amperometric/potentiometric FIA-based biosensor for the distinctive detection of organophosphorus pesticides
JF  - Sensors and Actuators B. 95 (2003), H. 1-3
Y1  - 2003
SN  - 0925-4005
SP  - 291
EP  - 296
ER  - 
TY  - JOUR
A1  - Schöning, Michael Josef
A1  - Kloock, Joachim P.
A1  - Mourzina, Y.
A1  - Schubert, J.
T1  - A first step towards a microfabricated thin-film sensor array on the basis of chalcogenide glass materials
JF  - Sensors. 2 (2002), H. 9
Y1  - 2002
SN  - 1424-8220
SP  - 356
EP  - 365
ER  - 
TY  - JOUR
A1  - Wagner, Torsten
A1  - Schöning, Michael Josef
A1  - Otto, R.
A1  - Yoshinobu, T.
T1  - A handheld 16 channel pen-type LAPS as a platform for (bio-)electrochemical sensing
JF  - Biomedizinische Technik. 49 (2004), H. 2
Y1  - 2004
SN  - 0932-4666
SP  - 996
EP  - 997
ER  - 
TY  - JOUR
A1  - Wagner, Torsten
A1  - Werner, Frederik
A1  - Miyamoto, K.
A1  - Schöning, Michael Josef
A1  - Yoshinobu, T.
T1  - A high-density multi-point LAPS set-up using a VCSEL array and FPGA control
JF  - Procedia Chemistry. 1 (2009), H. 1
Y1  - 2009
SN  - 1876-6196
N1  - Proceedings of the Eurosensors XXIII conference ; Eurosensors 23
SP  - 1483
EP  - 1486
PB  - Elsevier
CY  - Amsterdam
ER  - 
TY  - JOUR
A1  - Wagner, Torsten
A1  - Werner, Frederik
A1  - Miyamoto, Ko-Ichiro
A1  - Schöning, Michael Josef
A1  - Yoshinobu, Tatsuo
T1  - A high-density multi-point LAPS set-up using a VCSEL array and FPGA control
JF  - Sensors and Actuators B: Chemical. 154 (2011), H. 2
Y1  - 2011
SN  - 1873-3077
N1  - EUROSENSORS XXIII
SP  - 124
EP  - 128
PB  - Elsevier
CY  - Amsterdam
ER  - 
TY  - JOUR
A1  - Miyamoto, Ko-ichiro
A1  - Hayashi, Kosuke
A1  - Sakamoto, Azuma
A1  - Werner, Frederik
A1  - Wagner, Torsten
A1  - Schöning, Michael Josef
A1  - Yoshinobu, Tatsuo
T1  - A high-Q resonance-mode measurement of EIS capacitive sensor by elimination of series resistance
JF  - Sensor and Actuators B: Chemical
N2  - An EIS capacitive sensor is a semiconductor-based potentiometric sensor, which is sensitive to the ion concentration or pH value of the solution in contact with the sensing surface. To detect a small change in the ion concentration or pH, a small capacitance change must be detected. Recently, a resonance-mode measurement was proposed, in which an inductor was connected to the EIS capacitive sensor and the resonant frequency was correlated with the pH value. In this study, the Q factor of the resonant circuit was enhanced by canceling the internal resistance of the reference electrode and the internal resistance of the inductor coil with the help of a bypass capacitor and a negative impedance converter, respectively. 1% variation of the signal in the developed system corresponded to a pH change of 3.93 mpH, which was about 1/12 of the conventional method, suggesting a better performance in detection of a small pH change.
KW  - Negative impedance convertor
KW  - Resonance-mode measurement
KW  - Chemical sensor
KW  - EIS capacitive sensor
Y1  - 2017
U6  - http://dx.doi.org/10.1016/j.snb.2017.03.002
SN  - 0925-4005
VL  - 248
SP  - 1006
EP  - 1010
PB  - Elsevier
CY  - Amsterdam
ER  - 
TY  - JOUR
A1  - Schöning, Michael Josef
A1  - Tsarouchas, D.
A1  - Schaub, A.
A1  - Beckers, L. (u.a.)
T1  - A highly long-term stable silicon-based pH sensor using pulsed laser deposition technique
JF  - Sensors and Actuators B. 35 (1996), H. 1-3
Y1  - 1996
SN  - 0925-4005
SP  - 228
EP  - 233
ER  - 
TY  - JOUR
A1  - Dantism, Shahriar
A1  - Röhlen, Desiree
A1  - Wagner, Torsten
A1  - Wagner, P.
A1  - Schöning, Michael Josef
T1  - A LAPS-based differential sensor for parallelized metabolism monitoring of various bacteria
JF  - Sensors
N2  - Monitoring the cellular metabolism of bacteria in (bio)fermentation processes is crucial to control and steer them, and to prevent undesired disturbances linked to metabolically inactive microorganisms. In this context, cell-based biosensors can play an important role to improve the quality and increase the yield of such processes. This work describes the simultaneous analysis of the metabolic behavior of three different types of bacteria by means of a differential light-addressable potentiometric sensor (LAPS) set-up. The study includes Lactobacillus brevis, Corynebacterium glutamicum, and Escherichia coli, which are often applied in fermentation processes in bioreactors. Differential measurements were carried out to compensate undesirable influences such as sensor signal drift, and pH value variation during the measurements. Furthermore, calibration curves of the cellular metabolism were established as a function of the glucose concentration or cell number variation with all three model microorganisms. In this context, simultaneous (bio)sensing with the multi-organism LAPS-based set-up can open new possibilities for a cost-effective, rapid detection of the extracellular acidification of bacteria on a single sensor chip. It can be applied to evaluate the metabolic response of bacteria populations in a (bio)fermentation process, for instance, in the biogas fermentation process.
Y1  - 2019
U6  - http://dx.doi.org/10.3390/s19214692
SN  - 1424-8220
VL  - 19
IS  - 21
PB  - MDPI
CY  - Basel
ER  - 
TY  - JOUR
A1  - Wagner, Torsten
A1  - Molina, R.
A1  - Biselli, Manfred
A1  - Canzoneri, Michele
A1  - Schnitzler, Thomas
A1  - Yoshinobu, Tatsuo
A1  - Schöning, Michael Josef
T1  - A light-addressable potentiometric sensor system for fast, simultaneous and spatial detection of the metabolic activity of biological cells
JF  - Transducers '07 Eurosensors XXI : digest of technical papers ; the14th International Conference on Solid-State Sensors, Actuators and Microsystems, June 10-14, 2007, Lyon, France / Gilles Delapierre (Ed.)
Y1  - 2007
SN  - 1-4244-0841-5
N1  - Eurosensors 21, 2007, Lyon ; International Conference on Solid-State Sensors, Actuators and Microsystems 14, 2007, Lyon
SP  - 1107
EP  - 1110
PB  - IEEE
CY  - Piscataway
ER  - 
TY  - JOUR
A1  - Simonis, A.
A1  - Ruge, C.
A1  - Müller-Veggian, Mattea
A1  - Lüth, H.
A1  - Schöning, Michael Josef
T1  - A long-term stable macroporoustype EIS structure for electrochemical sensor applications
JF  - Sensors and Actuators B. 91 (2003), H. 1-3
Y1  - 2003
SN  - 0925-4005
SP  - 21
EP  - 25
ER  - 
TY  - JOUR
A1  - Schöning, Michael Josef
A1  - Thust, M.
A1  - Vetter, J.
A1  - Kordos, P. (u.a.)
T1  - A long-term stable penicillin-sensitive potentiometric biosensor with enzyme immobilized by heterobifunctional crosslinking
Y1  - 1996
SN  - 0378-4304
SP  - 115
EP  - 121
ER  - 
TY  - JOUR
A1  - Moreno i Codinachs, L.
A1  - Birkenstock, C.
A1  - Garma, T.
A1  - Zierold, R.
A1  - Bachmann, J.
A1  - Nielsch, K.
A1  - Schöning, Michael Josef
A1  - Fontcuberta i Morral, A.
T1  - A micron-sized nanoporous multifunction sensing device
JF  - physica status solidi (a) . 206 (2009), H. 3
Y1  - 2009
SN  - 1862-6319
N1  - Special Issue: Engineering of Functional Interfaces (EnFI 08)
SP  - 435
EP  - 441
PB  - Wiley
CY  - Weinheim
ER  - 
TY  - JOUR
A1  - Näther, Niko
A1  - Auger, V.
A1  - Poghossian, Arshak
A1  - Koudelka-Hep, M.
A1  - Schöning, Michael Josef
T1  - A miniaturized flow-through cell in SU-8 technique for EIS sensors
JF  - Biomedizinische Technik. 49 (2004), H. 2
Y1  - 2004
SN  - 0932-4666
SP  - 994
EP  - 995
ER  - 
TY  - JOUR
A1  - Mourzina, Y.G.
A1  - Schöning, Michael Josef
A1  - Schubert, J.
A1  - Zander, W.
A1  - Legin, A. V.
A1  - Vlasov, Y. G.
A1  - Kordos, P.
A1  - Lüth, H.
T1  - A new thin film Pb microsensor based on chalcogenide glasses
JF  - Sensors and Actuators B. 71 (2000), H. 1-2
Y1  - 2000
SN  - 0925-4005
SP  - 13
EP  - 18
ER  - 
TY  - JOUR
A1  - Näther, Niko
A1  - Emmerich, Rüdiger
A1  - Berger, Jörg
A1  - Friedrich, Peter
A1  - Henkel, Hartmut
A1  - Schneider, Andreas
A1  - Schöning, Michael Josef
T1  - A novel gas-phase hydrogen peroxide sensor basing on a combined physical/chemical transduction mechanism
JF  - Nanofunctional materials, nanostructures, and novel devices for biological and chemical detection : November 27 - December 1, 2006, Boston, Massachusetts, USA ; [at the 2006 MRS Fall Meeting].
Y1  - 2006
SN  - 978-1-60423-407-7
N1  - Materials Research Society symposium proceedings ; 951 ; MRS fall meeting ; (2006.11.27-12.01 : ; Boston, Mass.)
SP  - 63
EP  - 68
PB  - Materials Research Soc.
CY  - Warrendale, Pa.
ER  - 
TY  - JOUR
A1  - Schöning, Michael Josef
A1  - Beckers, L.
A1  - Schaub, A.
A1  - Zander, W.
A1  - Schubert, J.
A1  - Mesters, S.
A1  - Kordos, P.
A1  - Lüth, H.
T1  - A novel silicon-based pH sensor prepared by pulsed laser deposition technique
JF  - Proceedings of Eurosensors X, the 10th European Conference on Solid-State Transducers, September 8-11, 1996, Leuven, Belgium / [KU Leuven]. Puers, Robert.  Vol. 3.
Y1  - 1996
SN  - 90-803282-1-9
N1  - Eurosensors ; (10, 1996, Louvain) Eurosensors, the European Conference on Solid-State Transducers ; (10 : ; 1996.09.08-11 : ; Leuven)
SP  - 781
EP  - 784
PB  - Catholic University Leuven
CY  - Heverlee, Belgium
ER  - 
TY  - JOUR
A1  - Schöning, Michael Josef
A1  - Thust, M.
A1  - Müller-Veggian, Mattea
A1  - Kordos, P.
T1  - A novel silicon-based sensor array with capacitive EIS structures
JF  - Sensors and Actuators B. 47 (1998), H. 1-3
Y1  - 1998
SN  - 0925-4005
SP  - 225
EP  - 230
ER  -