TY  - JOUR
A1  - Reisert, Steffen
A1  - Geissler, Hanno
A1  - Flörke, Rudolf
A1  - Näther, Niko
A1  - Wagner, Patrick
A1  - Schöning, Michael Josef
T1  - Towards a multi-sensor system for the evaluation of aseptic processes employing hydrogen peroxide vapour (H2O2)
JF  - Physica status solidi (a) : applications and material science. 208 (2011), H. 6
Y1  - 2011
SN  - 1862-6319
SP  - 1351
EP  - 1356
PB  - Wiley
CY  - Weinheim
ER  - 
TY  - JOUR
A1  - Reisert, Steffen
A1  - Geissler, H.
A1  - Weiler, C.
A1  - Wagner, P.
A1  - Schöning, Michael Josef
T1  - Multiple sensor-type system for monitoring the microbicidal effectiveness of aseptic sterilisation processes
JF  - Food control
N2  - The present work describes a novel multiple sensor-type system for the real-time analysis of aseptic sterilisation processes employing gaseous hydrogen peroxide (H2O2) as a sterilant. The inactivation kinetics of Bacillus atrophaeus by gaseous H2O2 have been investigated by means of a methodical calibration experiment, taking into account the process variables H2O2 concentration, humidity and gas temperature. It has been found that the microbicidal effectiveness at H2O2 concentrations above 2% v/v is largely determined by the concentration itself, while at lower H2O2 concentrations, the gas temperature and humidity play a leading role. Furthermore, the responses of different types of gas sensors towards the influencing factors of the sterilisation process have been analysed within the same experiment. Based on a correlation established between the inactivation kinetics and the sensor responses, a calorimetric H2O2 sensor and a metal-oxide semiconductor (MOX) sensor have been identified as possible candidates for monitoring the microbicidal effectiveness of aseptic sterilisation processes employing gaseous H2O2. Therefore, two linear models that describe the relationship between sensor response and microbicidal effectiveness have been proposed.
Y1  - 2015
U6  - http://dx.doi.org/10.1016/j.foodcont.2014.07.063
SN  - 1873-7129 (E-Journal); 0956-7135 (Print)
VL  - 47
SP  - 615
EP  - 622
ER  - 
TY  - CHAP
A1  - Reisert, Steffen
A1  - Geissler, H.
A1  - Flörke, R.
A1  - Weiler, C.
A1  - Wagner, P.
A1  - Schöning, Michael Josef
ED  - Abdelghani, Adnane
ED  - Schöning, Michael Josef
T1  - Characterisation of aseptic sterilisation processes using an electronic nose
T2  - Nanoscale Science and Technology (NS&T´12) : Proceedings Book Humboldt Kolleg ; Tunisia, 17-19 March, 2012
Y1  - 2012
SP  - 45
EP  - 45
ER  - 
TY  - JOUR
A1  - Reisert, Steffen
A1  - Geissler, H.
A1  - Florke, R.
A1  - Wagner, P.
A1  - Wagner, Torsten
A1  - Schöning, Michael Josef
T1  - Controlling aseptic sterilization processes by means of a multi-sensor system
Y1  - 2011
N1  - 2011 IEEE Workshop on Merging Fields of Computational Intelligence and Sensor Technology ; 11.-15. April 2011 Paris, France
SP  - 18
EP  - 22
PB  - IEEE
CY  - New York
ER  - 
TY  - JOUR
A1  - Poghossian, Arshak
A1  - Yoshinobu, Tatsuo
A1  - Simonis, A.
A1  - Ecken, H.
A1  - Lüth, Hans
A1  - Schöning, Michael Josef
T1  - Penicillin detection by means of field-effect based sensors: EnFET, capacitive EIS sensor or LAPS?
JF  - Sensors and Actuators B. 78 (2001), H. 1-3
Y1  - 2001
SN  - 0925-4005
SP  - 237
EP  - 242
ER  - 
TY  - JOUR
A1  - Poghossian, Arshak
A1  - Yoshinobu, Tatsuo
A1  - Schöning, Michael Josef
T1  - Flow-velocity microsensors based on semiconductor field-effect structures
JF  - Sensors. 3 (2003), H. 7
Y1  - 2003
SN  - 1424-8220
SP  - 202
EP  - 212
ER  - 
TY  - JOUR
A1  - Poghossian, Arshak
A1  - Yoshinobu, T.
A1  - Simonis, A.
A1  - Ecken, H.
A1  - Lüth, H.
A1  - Schöning, Michael Josef
T1  - Penicillin detection by means of field-effect based sensors: EnFET, capacitive EIS sensor or LAPS?
JF  - Proceedings : Copenhagen, Denmark, 27 - 30 August 2000 / [ed.: R. de Reus ...]
Y1  - 2000
SN  - 87-89935-50-0
N1  - Eurosensors ; (14, 2000, København) ; Eurosensors ; (14 : ; 2000.08.27-30 : ; Copenhagen) ; European Conference on Solid-State Transducers ; (14 : ; 2000.08.27-30 : ; Copenhagen)
SP  - 27
EP  - 30
PB  - MIC, Mikroelektronik Centret
CY  - Lyngby, Denmark
ER  - 
TY  - JOUR
A1  - Poghossian, Arshak
A1  - Werner, Frederik
A1  - Buniatyan, V. V.
A1  - Wagner, Torsten
A1  - Miamoto, K.
A1  - Yoshinobu, T.
A1  - Schöning, Michael Josef
T1  - Towards addressability of light-addressable potentiometric sensors: Shunting effect of non-illuminated region and cross-talk
JF  - Sensor and Actuators B: Chemical
N2  - The LAPS (light-addressable potentiometric sensor) platform is one of the most attractive approaches for chemical and biological sensing with many applications ranging from pH and ion/analyte concentration measurements up to cell metabolism detection and chemical imaging. However, although it is generally accepted that LAPS measurements are spatially resolved, the light-addressability feature of LAPS devices has not been discussed in detail so far. In this work, an extended electrical equivalent-circuit model of the LAPS has been presented, which takes into account possible cross-talk effects due to the capacitive coupling of the non-illuminated region. A shunting effect of the non-illuminated area on the measured photocurrent and addressability of LAPS devices has been studied. It has been shown, that the measured photocurrent will be determined not only by the local interfacial potential in the illuminated region but also by possible interfacial potential changes in the non-illuminated region, yielding cross-talk effects. These findings were supported by the experimental investigations of a penicillin-sensitive multi-spot LAPS and a metal-insulator-semiconductor LAPS as model systems.
Y1  - 2017
U6  - http://dx.doi.org/10.1016/j.snb.2017.01.047
SN  - 0925-4005
IS  - 244
SP  - 1071
EP  - 1079
PB  - Elsevier
CY  - Amsterdam
ER  - 
TY  - CHAP
A1  - Poghossian, Arshak
A1  - Weiland, Maryam
A1  - Schöning, Michael Josef
ED  - Lvova, Larisa
ED  - Kirsanov, Dmitry
ED  - di Natale, Corrado
ED  - Legin, Audrey
T1  - Nanoplate field-effect capacitors: a new transducer structure for multiparameter (bio-)chemical sensing
T2  - Multisensor system for chemical analysis : materials and sensors
N2  - An array of electrically isolated nanoplate field-effect silicon-on-insulator (SOI) capacitors as a new transducer structure for multiparameter (bio-)chemical sensing is presented. The proposed approach allows addressable biasing and electrical readout of multiple nanoplate field-effect capacitive (bio-)chemical sensors on the same SOI chip, as well as differential-mode measurements. The realized sensor chip has been applied for pH and penicillin concentration measurements, electrical monitoring of polyelectrolyte multilayer formation, and the label-free electrical detection of consecutive deoxyribonucleic acid (DNA) hybridization and denaturation events.
Y1  - 2014
SN  - 978-981-4411-15-8 ; 978-981-4411-16-5
U6  - http://dx.doi.org/10.1201/b15491-11
SP  - 333
EP  - 373
PB  - Jenny Stanford Publishing
CY  - Singapore
ET  - 1
ER  - 
TY  - JOUR
A1  - Poghossian, Arshak
A1  - Weil, M. H.
A1  - Bäcker, Matthias
A1  - Mayer, D.
A1  - Schöning, Michael Josef
T1  - Field-effect Devices Functionalised with Gold-Nanoparticle/Macromolecule Hybrids: New Opportunities for a Label-Free Biosensing
JF  - Procedia Engineering
N2  - Field-effect capacitive electrolyte-insulator-semiconductor (EIS) sensors functionalised with citrate-capped gold nanoparticles (AuNP) have been used for the electrostatic detection of macromolecules by their intrinsic molecular charge. The EIS sensor detects the charge changes in the AuNP/macromolecule hybrids induced by the adsorption or binding events. A feasibility of the proposed detection scheme has been exemplary demonstrated by realising EIS sensors for the detection of poly-D-lysine molecules.
Y1  - 2012
U6  - http://dx.doi.org/10.1016/j.proeng.2012.09.136
SN  - 1877-7058
N1  - Part of special issue "26th European Conference on Solid-State Transducers, EUROSENSOR 2012"
IS  - 47
SP  - 273
EP  - 276
PB  - Elsevier
CY  - Amsterdam
ER  - 
TY  - JOUR
A1  - Poghossian, Arshak
A1  - Weil, M.
A1  - Cherstvy, A. G.
A1  - Schöning, Michael Josef
T1  - Electrical monitoring of polyelectrolyte multilayer formation by means of capacitive field-effect devices
JF  - Analytical and bioanalytical chemistry
N2  - The semiconductor field-effect platform represents a powerful tool for detecting the adsorption and binding of charged macromolecules with direct electrical readout. In this work, a capacitive electrolyte–insulator–semiconductor (EIS) field-effect sensor consisting of an Al-p-Si-SiO2 structure has been applied for real-time in situ electrical monitoring of the layer-by-layer formation of polyelectrolyte (PE) multilayers (PEM). The PEMs were deposited directly onto the SiO2 surface without any precursor layer or drying procedures. Anionic poly(sodium 4-styrene sulfonate) and cationic weak polyelectrolyte poly(allylamine hydrochloride) have been chosen as a model system. The effect of the ionic strength of the solution, polyelectrolyte concentration, number and polarity of the PE layers on the characteristics of the PEM-modified EIS sensors have been studied by means of capacitance–voltage and constant-capacitance methods. In addition, the thickness, surface morphology, roughness and wettabilityof the PE mono- and multilayers have been characterised by ellipsometry, atomic force microscopy and water contact-angle methods, respectively. To explain potential oscillations on the gate surface and signal behaviour of the capacitive field-effect EIS sensor modified with a PEM, a simplified electrostatic model that takes into account the reduced electrostatic screening of PE charges by mobile ions within the PEM has been proposed and discussed.
Y1  - 2013
U6  - http://dx.doi.org/10.1007/s00216-013-6951-9
SN  - 1432-1130 ; 1618-2642
VL  - 405
IS  - 20
SP  - 6425
EP  - 6436
PB  - Springer
CY  - Berlin
ER  - 
TY  - JOUR
A1  - Poghossian, Arshak
A1  - Wagner, Holger
A1  - Schöning, Michael Josef
T1  - Functional testing and characterisation of (bio-)chemical sensors on wafer level
JF  - Procedia Chemistry. 1 (2009), H. 1
Y1  - 2009
SN  - 1876-6196
N1  - Proceedings of the Eurosensors XXIII conference ; Eurosensors 23
SP  - 835
EP  - 838
ER  - 
TY  - JOUR
A1  - Poghossian, Arshak
A1  - Wagner, Holger
A1  - Schöning, Michael Josef
T1  - Functional testing and characterisation of (bio-)chemical sensors on wafer level
JF  - Sensors and Actuators B: Chemical. 154 (2011), H. 2
Y1  - 2011
SN  - 1873-3077
N1  - EUROSENSORS XXIII
SP  - 169
EP  - 173
PB  - Elsevier
CY  - Amsterdam
ER  - 
TY  - JOUR
A1  - Poghossian, Arshak
A1  - Wagner, H.
A1  - Schöning, Michael Josef
T1  - Automatisiertes „wafer level“-Testsystem zur Charakterisierung von siliziumbasierten Chemo- und Biosensoren
JF  - Sensoren und Messsysteme 2010 [Elektronische Ressource] : Vorträge der 15. ITG/GMA-Fachtagung vom 18. bis 19. Mai 2010 in Nürnberg / Informationstechnische Gesellschaft im VDE (ITG); VDI/VDE-Gesellschaft Mess- und Automatisierungstechnik (GMA)
Y1  - 2010
SN  - 978-3-8007-3260-9
N1  - Fachtagung Sensoren und Messsysteme 15, 2010, Nürnberg ; Gesellschaft Mess- und Automatisierungstechnik
SP  - 89
EP  - 92
PB  - VDE Verlag
CY  - Berlin
ER  - 
TY  - JOUR
A1  - Poghossian, Arshak
A1  - Thust, M.
A1  - Schöning, Michael Josef
A1  - Müller-Veggian, Mattea
A1  - Kordos, P.
A1  - Lüth, H.
T1  - Cross-sensitivity of a capacitive penicillin sensor combined with a diffusion barrier
JF  - Sensors and Actuators B. 68 (2000), H. 1-3
Y1  - 2000
SN  - 0925-4005
SP  - 260
EP  - 265
ER  - 
TY  - JOUR
A1  - Poghossian, Arshak
A1  - Thust, M.
A1  - Schroth, P.
A1  - Steffen, A.
A1  - Lüth, H.
A1  - Schöning, Michael Josef
T1  - Penicillin detection by means of silicon-based field-effect structures
JF  - Sensors and Materials. 13 (2001), H. 4
Y1  - 2001
SN  - 0392-2510
SP  - 207
EP  - 223
ER  - 
TY  - JOUR
A1  - Poghossian, Arshak
A1  - Schöning, Michael Josef
A1  - Schroth, P.
A1  - Simonis, A.
A1  - Lüth, H.
T1  - An ISFET-based penicillin sensor with high sensitivity, low detection limit and long lifetime
JF  - Sensors and Actuators B. 76 (2001), H. 1-3
Y1  - 2001
SN  - 0925-4005
SP  - 519
EP  - 526
ER  - 
TY  - JOUR
A1  - Poghossian, Arshak
A1  - Schöning, Michael Josef
T1  - Detecting Both Physical and (Bio-)Chemical Parameters by Means of ISFET Devices
JF  - Electroanalysis. 16 (2004), H. 22
Y1  - 2004
SN  - 1040-0397
SP  - 1863
EP  - 1872
ER  - 
TY  - JOUR
A1  - Poghossian, Arshak
A1  - Schöning, Michael Josef
T1  - "High-order” hybrid FET module for (bio)chemical and physical sensing
JF  - Integrated analytical systems / ed. by Salvador Alegret
Y1  - 2003
SN  - 0-444-51037-0
SP  - 587
EP  - 623
PB  - Elsevier
CY  - Amsterdam [u.a.]
ER  - 
TY  - JOUR
A1  - Poghossian, Arshak
A1  - Schöning, Michael Josef
T1  - Chemical and biological field-effect sensors for liquids – a status report
JF  - Handbook of biosensors and biochips / ed. Robert S. Marks ... Bd. 1
Y1  - 2007
SN  - 978-0-470-01905-4
SP  - 395
EP  - 412
PB  - Wiley
CY  - Chichester
ER  -