TY  - CHAP
A1  - Kirchner, Patrick
A1  - Reisert, Steffen
A1  - Schöning, Michael Josef
T1  - Calorimetric gas sensors for hydrogen peroxide monitoring in aseptic food processes
T2  - Gas sensing fundamentals. (Springer Series on Chemical Sensors and Biosensors ; 15)
N2  - For the sterilisation of aseptic food packages it is taken advantage of the microbicidal properties of hydrogen peroxide (H2O2). Especially, when applied in vapour phase, it has shown high potential of microbial inactivation. In addition, it offers a high environmental compatibility compared to other chemical sterilisation agents, as it decomposes into oxygen and water, respectively. Due to a lack in sensory detection possibilities, a continuous monitoring of the H2O2 concentration was recently not available. Instead, the sterilisation efficacy is validated using microbiological tests. However, progresses in the development of calorimetric gas sensors during the last 7 years have made it possible to monitor the H2O2 concentration during operation. This chapter deals with the fundamentals of calorimetric gas sensing with special focus on the detection of gaseous hydrogen peroxide. A sensor principle based on a calorimetric differential set-up is described. Special emphasis is given to the sensor design with respect to the operational requirements under field conditions. The state-of-the-art regarding a sensor set-up for the on-line monitoring and secondly, a miniaturised sensor for in-line monitoring are summarised. Furthermore, alternative detection methods and a novel multi-sensor system for the characterisation of aseptic sterilisation processes are described.
KW  - Calorimetric gas sensor
KW  - Hydrogen peroxide
KW  - Multi-sensor system
Y1  - 2014
SN  - 978-3-642-54518-4 (Print) ; 978-3-642-54519-1 (Online)
U6  - http://dx.doi.org/10.1007/5346_2013_51
SP  - 279
EP  - 309
PB  - Springer
CY  - Heidelberg
ER  - 
TY  - CHAP
A1  - Schöning, Michael Josef
A1  - Poghossian, Arshak
A1  - Glück, Olaf
A1  - Thust, Marion
T1  - Electrochemical methods for the determination of chemical variables in aqueous media
T2  - Measurement, instrumentation, and sensors handbook / ed. by John G. Webster [u.a.] Vol. 2 : Electromagnetic, optical, radiation, chemical, and biomedical measurement
Y1  - 2014
SN  - 978-1-4398-4891-3
SP  - 55-1
EP  - 55-54
PB  - CRC Pr.
CY  - Boca Raton, Fla.
ER  - 
TY  - JOUR
A1  - Bäcker, Matthias
A1  - Schusser, Sebastian
A1  - Poghossian, Arshak
A1  - Schöning, Michael Josef
T1  - Multi-Parametererfassung mit siliziumbasiertem Sensorchip: Aus Drei mach Eins
JF  - GIT Labor-Fachzeitschrift
Y1  - 2014
SN  - 0016-3538
IS  - 2
SP  - 28
EP  - 30
PB  - Wiley
ER  - 
TY  - CHAP
A1  - Huck, Christina
A1  - Poghossian, Arshak
A1  - Buniatyan, V.
A1  - Schöning, Michael Josef
T1  - Multi-parameter detection for supporting monitoring and control of biogas processes in agriculture
T2  - Sensoren und Messsysteme 2014 ; Beiträge der 17. GMA/ITG-Fachtagung vom 3. bis 4. Juni 2014 in Nürnberg. (ITG-Fachbericht ; 250)
Y1  - 2014
SN  - 978-3-8007-3622-5
SP  - 1
EP  - 5
PB  - VDE-Verl.
CY  - Berlin
ER  - 
TY  - CHAP
A1  - Werner, Frederik
A1  - Yoshinobu, T.
A1  - Miyamoto, K.
A1  - Schöning, Michael Josef
A1  - Wagner, Torsten
T1  - Semiconductor-based sensors for imaging of chemical processes
T2  - Sensoren und Messsysteme 2014 ; Beiträge der 17. GMA/ITG-Fachtagung vom 3. bis 4. Juni 2014 in Nürnberg. (ITG-Fachbericht ; 250)
Y1  - 2014
SN  - 978-3-8007-3622-5
SP  - 1
EP  - 5
PB  - VDE-Verl.
CY  - Düsseldorf
ER  - 
TY  - CHAP
A1  - Wu, Chunsheng
A1  - Bronder, Thomas
A1  - Poghossian, Arshak
A1  - Schöning, Michael Josef
T1  - DNA-hybridization detection using light-addressable potentiometric sensor modified with gold layer
T2  - Sensoren und Messsysteme 2014 ; Beiträge der 17. GMA/ITG-Fachtagung vom 3. bis 4. Juni 2014 in Nürnberg. (ITG-Fachbericht ; 250)
Y1  - 2014
SN  - 978-3-8007-3622-5
SP  - 1
EP  - 4
PB  - VDE-Verl.
CY  - Düsseldorf
ER  - 
TY  - CHAP
A1  - Oberländer, Jan
A1  - Kirchner, Patrick
A1  - Keusgen, M.
A1  - Schöning, Michael Josef
T1  - Flexible polyimide-based calorimetric gas sensors for monitoring hy-drogen peroxide in sterilisation processes of aseptic filling machines
T2  - Sensoren und Messsysteme 2014 ; Beiträge der 17. GMA/ITG-Fachtagung vom 3. bis 4. Juni 2014 in Nürnberg. (ITG-Fachbericht ; 250)
Y1  - 2014
SN  - 978-3-8007-3622-5
SP  - 1
EP  - 4
PB  - VDE-Verl.
CY  - Düsseldorf
ER  - 
TY  - CHAP
A1  - Bäcker, Matthias
A1  - Schusser, Sebastian
A1  - Leinhos, Marcel
A1  - Poghossian, Arshak
A1  - Schöning, Michael Josef
T1  - Sensor system for the monitoring of degradation processes of biodegradable biopolymers
T2  - Sensoren und Messsysteme 2014 ; Beiträge der 17. GMA/ITG-Fachtagung vom 3. bis 4. Juni 2014 in Nürnberg. (ITG-Fachbericht ; 250)
Y1  - 2014
SN  - 978-3-8007-3622-5
SP  - 1
EP  - 4
PB  - VDE-Verl.
CY  - Düsseldorf
ER  - 
TY  - JOUR
A1  - Handtke, Stefan
A1  - Volland, Sonja
A1  - Methling, Karen
A1  - Albrecht, Dirk
A1  - Becher, Dörte
A1  - Nehls, Jenny
A1  - Bongaerts, Johannes
A1  - Maurer, Karl-Heinz
A1  - Lalk, Michael
A1  - Liesegang, Heiko
A1  - Voigt, Birgit
A1  - Daniel, Rolf
A1  - Hecker, Michael
T1  - Cell physiology of the biotechnological relevant bacterium Bacillus pumilus - An omics-based approach
JF  - Journal of Biotechnology
N2  - Members of the species Bacillus pumilus get more and more in focus of the biotechnological industry as potential new production strains. Based on exoproteome analysis, B. pumilus strain Jo2, possessing a high secretion capability, was chosen for an omics-based investigation. The proteome and metabolome of B. pumilus cells growing either in minimal or complex medium was analyzed. In total, 1542 proteins were identified in growing B. pumilus cells, among them 1182 cytosolic proteins, 297 membrane and lipoproteins and 63 secreted proteins. This accounts for about 43% of the 3616 proteins encoded in the B. pumilus Jo2 genome sequence. By using GC–MS, IP-LC/MS and H NMR methods numerous metabolites were analyzed and assigned to reconstructed metabolic pathways. In the genome sequence a functional secretion system including the components of the Sec- and Tat-secretion machinery was found. Analysis of the exoproteome revealed secretion of about 70 proteins with predicted secretion signals. In addition, selected production-relevant genome features such as restriction modification systems and NRPS clusters of B. pumilus Jo2 are discussed.
Y1  - 2014
U6  - http://dx.doi.org/10.1016/j.jbiotec.2014.08.028
SN  - 1873-4863 (E-Journal); 0168-1656 (Print)
IS  - 192(A)
SP  - 204
EP  - 214
PB  - Elsevier
CY  - Amsterdam
ER  - 
TY  - JOUR
A1  - Yoshinobu, Tatsuo
A1  - Miyamoto, Ko-ichiro
A1  - Wagner, Torsten
A1  - Schöning, Michael Josef
T1  - Recent developments of chemical imaging sensor systems based on the principle of the light-addressable potentiometric sensor
JF  - Sensors and actuators B: Chemical
N2  - The light-addressable potentiometric sensor (LAPS) is an electrochemical sensor with a field-effect structure to detect the variation of the Nernst potential at its sensor surface, the measured area on which is defined by illumination. Thanks to this light-addressability, the LAPS can be applied to chemical imaging sensor systems, which can visualize the two-dimensional distribution of a particular target ion on the sensor surface. Chemical imaging sensor systems are expected to be useful for analysis of reaction and diffusion in various electrochemical and biological samples. Recent developments of LAPS-based chemical imaging sensor systems, in terms of the spatial resolution, measurement speed, image quality, miniaturization and integration with microfluidic devices, are summarized and discussed.
Y1  - 2015
U6  - http://dx.doi.org/10.1016/j.snb.2014.09.002
SN  - 1873-3077 (E-Journal); 0925-4005 (Print)
VL  - 207, Part B
SP  - 926
EP  - 932
PB  - Elsevier
CY  - Amsterdam
ER  - 
TY  - JOUR
A1  - Siqueira, Jose R.
A1  - Molinnus, Denise
A1  - Beging, Stefan
A1  - Schöning, Michael Josef
T1  - Incorporating a hybrid urease-carbon nanotubes sensitive nanofilm on capacitive field-effect sensors for urea detection
JF  - Analytical chemistry
N2  - The ideal combination among biomolecules and nanomaterials is the key for reaching biosensing units with high sensitivity. The challenge, however, is to find out a stable and sensitive film architecture that can be incorporated on the sensor’s surface. In this paper, we report on the benefits of incorporating a layer-by-layer (LbL) nanofilm of polyamidoamine (PAMAM) dendrimer and carbon nanotubes (CNTs) on capacitive electrolyte-insulator-semiconductor (EIS) field-effect sensors for detecting urea. Three sensor arrangements were studied in order to investigate the adequate film architecture, involving the LbL film with the enzyme urease: (i) urease immobilized directly onto a bare EIS [EIS-urease] sensor; (ii) urease atop the LbL film over the EIS [EIS-(PAMAM/CNT)-urease] sensor; and (iii) urease sandwiched between the LbL film and another CNT layer [EIS-(PAMAM/CNT)-urease-CNT]. The surface morphology of all three urea-based EIS biosensors was investigated by atomic force microscopy (AFM), while the biosensing abilities were studied by means of capacitance–voltage (C/V) and dynamic constant-capacitance (ConCap) measureaments at urea concentrations ranging from 0.1 mM to 100 mM. The EIS-urease and EIS-(PAMAM/CNT)-urease sensors showed similar sensitivity (∼18 mV/decade) and a nonregular signal behavior as the urea concentration increased. On the other hand, the EIS-(PAMAM/CNT)-urease-CNT sensor exhibited a superior output signal performance and higher sensitivity of about 33 mV/decade. The presence of the additional CNT layer was decisive to achieve a urea based EIS sensor with enhanced properties. Such sensitive architecture demonstrates that the incorporation of an adequate hybrid enzyme-nanofilm as sensing unit opens new prospects for biosensing applications using the field-effect sensor platform.
Y1  - 2014
U6  - http://dx.doi.org/10.1021/ac500458s
SN  - 1520-6882 (E-Journal); 0003-2700 (Print); 0096-4484 (Print)
VL  - 86
IS  - 11
SP  - 5370
EP  - 5375
PB  - ACS Publications
CY  - Columbus
ER  - 
TY  - JOUR
A1  - Poghossian, Arshak
A1  - Bäcker, Matthias
A1  - Mayer, Dirk
A1  - Schöning, Michael Josef
T1  - Gating capacitive field-effect sensors by the charge of nanoparticle/molecule hybrids
JF  - Nanoscale
Y1  - 2015
U6  - http://dx.doi.org/10.1039/C4NR05987E
SN  - 2040-3372 (E-Journal); 2040-3364 (Print)
SP  - 1023
EP  - 1031
PB  - Royal Society of Chemistry (RSC)
CY  - Cambridge
ER  - 
TY  - JOUR
A1  - Schusser, Sebastian
A1  - Poghossian, Arshak
A1  - Bäcker, Matthias
A1  - Krischer, M.
A1  - Leinhos, Marcel
A1  - Wagner, P.
A1  - Schöning, Michael Josef
T1  - An application of field-effect sensors for in-situ monitoring of degradation of biopolymers
JF  - Sensors and actuators B: Chemical
N2  - The characterization of the degradation kinetics of biodegradable polymers is mandatory with regard to their proper application. In the present work, polymer-modified electrolyte–insulator–semiconductor (PMEIS) field-effect sensors have been applied for in-situ monitoring of the pH-dependent degradation kinetics of the commercially available biopolymer poly(d,l-lactic acid) (PDLLA) in buffer solutions from pH 3 to pH 13. PDLLA films of 500 nm thickness were deposited on the surface of an Al–p-Si–SiO2–Ta2O5 structure from a polymer solution by means of spin-coating method. The PMEIS sensor is, in principle, capable to detect any changes in bulk, surface and interface properties of the polymer induced by degradation processes. A faster degradation has been observed for PDLLA films exposed to alkaline solutions (pH 9, pH 11 and pH 13).
Y1  - 2015
U6  - http://dx.doi.org/10.1016/j.snb.2014.10.058
SN  - 1873-3077 (E-Journal); 0925-4005 (Print)
VL  - 207, Part B
SP  - 954
EP  - 959
PB  - Elsevier
CY  - Amsterdam
ER  - 
TY  - JOUR
A1  - Miyamoto, K.
A1  - Seki, K.
A1  - Wagner, Torsten
A1  - Schöning, Michael Josef
A1  - Yoshinobu, T.
T1  - Enhancement of the spatial resolution of the chemical imaging sensor by a hybrid fiber-optic illumination
JF  - Procedia Engineering
N2  - The chemical imaging sensor, which is based on the principle of the light-addressable potentiometric sensor (LAPS), is a powerful tool to visualize the spatial distribution of chemical species on the sensor surface. The spatial resolution of this sensor depends on the diffusion of photocarriers excited by a modulated light. In this study, a novel hybrid fiber-optic illumination was developed to enhance the spatial resolution. It consists of a modulated light probe to generate a photocurrent signal and a ring of constant light, which suppresses the lateral diffusion of minority carriers excited by the modulated light. It is demonstrated that the spatial resolution was improved from 92 μm to 68 μm.
Y1  - 2014
U6  - http://dx.doi.org/10.1016/j.proeng.2014.11.563
SN  - 1877-7058
N1  - EUROSENSORS 2014 ; European Conference on Solid-State Transducers <28, 2014>
VL  - 87
SP  - 612
EP  - 615
PB  - Elsevier
CY  - Amsterdam
ER  - 
TY  - CHAP
A1  - Kloock, Joachim P.
A1  - Schöning, Michael Josef
T1  - Heavy metal detection with semiconductor devices based on PLD-prepared chalcogenide glass thin films
T2  - Armenian Journal of Physics
Y1  - 2007
SN  - 1829-1171
SP  - 95
EP  - 98
ER  - 
TY  - JOUR
A1  - Murib, M. S.
A1  - Yeap, W. S.
A1  - Martens, D.
A1  - Liu, X.
A1  - Bienstman, P.
A1  - Fahlman, M.
A1  - Schöning, Michael Josef
A1  - Michiels, L.
A1  - Haenen, K.
A1  - Serpengüzel, A.
A1  - Wagner, Patrick
T1  - Photonic studies on polymer-coated sapphire-spheres : a model system for biological ligands
JF  - Sensors and actuators A: Physical
N2  - In this study we show an optical biosensor concept, based on elastic light scattering from sapphire microspheres. Transmitted and elastic scattering intensity of the microspheres (radius 500 μm, refractive index 1.77) on an optical fiber half coupler is analyzed at 1510 nm. The 0.43 nm angular mode spacing of the resonances is comparable to the angular mode spacing value estimated using the optical size of the microsphere. The spectral linewidths of the resonances are in the order of 0.01 nm, which corresponds to quality factors of approximately 105. A polydopamine layer is used as a functionalizing agent on sapphire microspherical resonators in view of biosensor implementation. The varying layer thickness on the microsphere is determined as a function of the resonance wavelength shift. It is shown that polymer functionalization has a minor effect on the quality factor. This is a promising step toward the development of an optical biosensor.
Y1  - 2015
U6  - http://dx.doi.org/10.1016/j.sna.2014.11.024
SN  - 1873-3069 (E-Journal); 0924-4247 (Print)
VL  - 222
SP  - 212
EP  - 219
PB  - Elsevier
CY  - Amsterdam
ER  - 
TY  - CHAP
A1  - Näther, Niko
A1  - Poghossian, Arshak
A1  - Platen, J.
A1  - Yoshinobu, T.
A1  - Koudelka-Hep, M.
A1  - Schöning, Michael Josef
T1  - Multi-parameter sensing of both physical and (bio-)chemical quantities using the same transducer principle
T2  - Biochemical sensing utilisation of micro- and nanotechnologies : Warsaw, [23rd - 26th] November 2005 / ed. by M. Mascini ...
Y1  - 2006
SP  - 172
EP  - 181
CY  - Warsaw
ER  - 
TY  - CHAP
A1  - Kloock, Joachim P.
A1  - Schubert, J.
A1  - Ermelenko, Y.
A1  - Vlasov, Y. G.
A1  - Bratov, A.
A1  - Schöning, Michael Josef
T1  - Thin-film sensors with chalcogenide glass materials – a general survey
T2  - Biochemical sensing utilisation of micro- and nanotechnologies : Warsaw, [23rd - 26th] November 2005 / ed. by M. Mascini ...
Y1  - 2006
SP  - 92
EP  - 97
CY  - Warsaw
ER  - 
TY  - CHAP
A1  - Beging, Stefan
A1  - Poghossian, Arshak
A1  - Mlynek, D.
A1  - Hataihimakul, S.
A1  - Pedraza, A.
A1  - Dhawan, S.
A1  - Laube, N.
A1  - Kleinen, L.
A1  - Baldsiefen, G.
A1  - Busch, H.
A1  - Schöning, Michael Josef
T1  - Ion-selective sensors for the determination of the risk of urinary stone formation
T2  - Micro- and Nanosystems in biochemical diagnosis : Principles and applications
Y1  - 2010
SP  - 74
EP  - 80
CY  - Warsaw
ER  - 
TY  - CHAP
A1  - Weil, M.
A1  - Poghossian, Arshak
A1  - Schöning, Michael Josef
A1  - Cherstvy, A.
T1  - Electrical monitoring of layer-by-layer adsorption of oppositely charged macromolecules by means of capacitive field-effect devices
Y1  - 2012
SN  - 978-3-9813484-2-2
U6  - http://dx.doi.org/10.5162/IMCS2012/P2.5.2
SP  - 1575
EP  - 1578
ER  - 
TY  - CHAP
A1  - Bohrn, Ulrich
A1  - Mucha, Andreas
A1  - Werner, Frederik
A1  - Stütz, Evamaria
A1  - Bäcker, Matthias
A1  - Krumbe, Christoph
A1  - Schienle, Meinrad
A1  - Fleischer, Maximilian
A1  - Wagner, Patrick
A1  - Schöning, Michael Josef
T1  - Detection of toxic chromium species in water using cellbased sensor systems
Y1  - 2012
SN  - 978-3-9813484-2-2
U6  - http://dx.doi.org/10.5162/IMCS2012/P2.1.14
SP  - 1364
EP  - 1367
ER  - 
TY  - JOUR
A1  - Schöning, Michael Josef
A1  - Bäcker, Matthias
T1  - Chip-basierte Sensoren für die Biotechnik
Y1  - 2012
SN  - 1611-0854
N1  - 4 Seiten
VL  - 13
IS  - 2
PB  - BIOCOM
CY  - Berlin
ER  - 
TY  - CHAP
A1  - Schöning, Michael Josef
A1  - Abouzar, Maryam H.
A1  - Wagner, Torsten
A1  - Näther, Niko
A1  - Rolka, David
A1  - Yoshinobu, Tatsuo
A1  - Kloock, Joachim P.
A1  - Turek, Monika
A1  - Ingebrandt, Sven
A1  - Poghossian, Arshak
T1  - A semiconductor-based field-effect platform for (bio-)chemical and physical sensors: From capacitive EIS sensors and LAPS over ISFETs to nano-scale devices
T2  - MRS Proceedings
Y1  - 2006
U6  - http://dx.doi.org/10.1557/PROC-0952-F08-02
N1  - Vol. 952 - Symposium F - Integrated Nanosensors
SP  - 1
EP  - 9
ER  - 
TY  - CHAP
A1  - Moritz, Werner
A1  - Yoshinobu, Tatsuo
A1  - Finger, Friedhelm
A1  - Krause, Steffi
A1  - Schöning, Michael Josef
T1  - Amorphous silicon as semiconductor material for high resolution LAPS
T2  - Eurosensors XVII : the 17th European Conference on Solid-State Transducers ; University of Minho, Guimarães, Portugal, September 21 - 24, 2003
Y1  - 2003
SP  - 48
EP  - 49
ER  - 
TY  - CHAP
A1  - Ermelenko, Y.
A1  - Yoshinobu, T.
A1  - Mourzina, Y.
A1  - Schöning, Michael Josef
A1  - Vlasov, Y.
A1  - Iwasaki, H.
T1  - A multisensor based on laser scanned silicon transducer (LSST): development and properties
T2  - Eurosensors XVII : the 17th European Conference on Solid-State Transducers ; University of Minho, Guimarães, Portugal, September 21 - 24, 2003
Y1  - 2003
SP  - 72
EP  - 73
ER  - 
TY  - CHAP
A1  - Yoshinobu, T.
A1  - Schöning, Michael Josef
A1  - Finger, F.
A1  - Moritz, W.
A1  - Iwasaki, H.
T1  - Thin-film a-Si LAPS : Preparation and pH sensitivity
T2  - Eurosensors XVII : the 17th European Conference on Solid-State Transducers ; University of Minho, Guimarães, Portugal, September 21 - 24, 2003
Y1  - 2003
SP  - 88
EP  - 89
ER  - 
TY  - CHAP
A1  - Bohrn, Ulrich
A1  - Stütz, Evamaria
A1  - Fleischer, Maximilian
A1  - Schöning, Michael Josef
A1  - Wagner, Patrick
T1  - Living cell-based gas sensor system for the detection of acetone in air
Y1  - 2012
SN  - 978-3-9813484-2-2
U6  - http://dx.doi.org/10.5162/IMCS2012/3.2.3
SP  - 269
EP  - 272
ER  - 
TY  - CHAP
A1  - Takenaga, Shoko
A1  - Werner, Frederik
A1  - Sawada, Kazuaki
A1  - Schöning, Michael Josef
T1  - Comparison of label-free ACh image sensors based on CCD and LAPS
Y1  - 2012
SN  - 978-3-9813484-2-2
U6  - http://dx.doi.org/10.5162/IMCS2012/4.2.6
SP  - 356
EP  - 359
ER  - 
TY  - CHAP
A1  - Kloock, Joachim P.
A1  - Moreno, Lia
A1  - Huachupoma, S.
A1  - Xu, J.
A1  - Wagner, Torsten
A1  - Bratov, A.
A1  - Doll, T.
A1  - Vlasov, Y.
A1  - Schöning, Michael Josef
ED  - Gerlach, Gerald
T1  - Halbleiterbasierte Schwermetallsensorik auf der Basis von Chalkogenidgläsern für zukünftige „Lab on Chip“-Anwendungen
T2  - 7. Dresdner Sensor-Symposium - Neue Herausforderungen und Anwendungen in der Sensortechnik
Y1  - 2005
SN  - 3-938863-29-3
SP  - 221
EP  - 224
PB  - TUDpress, Verl. der Wissenschaften
CY  - Dresden
ER  - 
TY  - CHAP
A1  - Schöning, Michael Josef
A1  - Abouzar, Maryam H.
A1  - Han, Y.
A1  - Ingebrandt, S.
A1  - Offenhäusser, A.
A1  - Poghossian, Arshak
T1  - Markierungsfreie DNA-Detektion mit Silizium-Feldeffektsensoren – Messeffekte oder Artefakte?
T2  - Sensoren und Mess-Systeme 2006 : Vorträge der 13. ITG/GMA-Fachtagung vom 13. bis 14.3.2006 in Freiburg/Breisgau
Y1  - 2006
SN  - 3-8007-2939-3
SP  - 443
EP  - 446
PB  - VDE Verl.
CY  - Berlin
ER  - 
TY  - CHAP
A1  - Platen, J.
A1  - Poghossian, Arshak
A1  - Schöning, Michael Josef
T1  - Präparation von selbstjustierenden Nanostrukturen mittels Schichtausdehnungstechnik
T2  - Sensoren und Mess-Systeme 2006 : Vorträge der 13. ITG/GMA-Fachtagung vom 13. bis 14.3.2006 in Freiburg/Breisgau
Y1  - 2006
SN  - 3-8007-2939-3
SP  - 277
EP  - 280
PB  - VDE Verl.
CY  - Berlin
ER  - 
TY  - CHAP
A1  - Wagner, Torsten
A1  - Yoshinobu, T.
A1  - Otto, R.
A1  - Rao, C.
A1  - Molina, R.
A1  - Schöning, Michael Josef
T1  - Licht-adressierbare potentiometrische Sensorsysteme – Konzepte und Anwendungen
T2  - Sensoren und Mess-Systeme 2006 : Vorträge der 13. ITG/GMA-Fachtagung vom 13. bis 14.3.2006 in Freiburg/Breisgau
Y1  - 2006
SN  - 3-8007-2939-3
SP  - 165
EP  - 168
PB  - VDE Verl.
CY  - Berlin
ER  - 
TY  - JOUR
A1  - Schöning, Michael Josef
A1  - Poghossian, Arshak
T1  - BioFEDs (field-effect devices) : State-of-the-art and new directions
JF  - Electroanalysis
Y1  - 2006
U6  - http://dx.doi.org/10.1002/elan.200603609
SN  - 1521-4109
VL  - 18
IS  - 19-20
SP  - 1893
EP  - 1900
ER  - 
TY  - JOUR
A1  - Spelthahn, Heiko
A1  - Schubert, Jürgen
A1  - Schöning, Michael Josef
T1  - Dünnschichtsensoren für die Schwermetallanalytik : Mikroelektroden auf Chalkogenidglasbasis
JF  - GIT Labor-Fachzeitschrift
N2  - Die Detektion von Schadstoffen repräsentiert in der Umweltanalytik eine wichtige Aufgabenstellung. Gerade die Abwasser- bzw. Brauchwasseranalytik sowie die Prozesskontrolle haben einen hohen Stellenwert. Siliziumbasierte Dünnschichtsensoren bieten eine kostengünstige Möglichkeit, „online“-Messungen bzw. Vor-Ort-Messungen zeitnah durchzuführen. In dieser Arbeit wird ein potentiometrisches Sensorarray auf der Basis von Chalkogenidgläsern zur Detektion von Schwermetallen in wässrigen Medien vorgestellt.
Y1  - 2012
IS  - 4
SP  - 285
EP  - 287
PB  - Wiley-VCH
CY  - Weinheim
ER  - 
TY  - CHAP
A1  - Poghossian, Arshak
A1  - Schumacher, Kerstin
A1  - Kloock, Joachim P.
A1  - Rosenkranz, Christian
A1  - Schultze, Joachim W.
A1  - Müller-Veggian, Mattea
A1  - Schöning, Michael Josef
T1  - Functional testing and characterisation of ISFETs on wafer level by means of a micro-droplet cell
N2  - A wafer-level functionality testing and characterisation system for ISFETs (ionsensitive field-effect transistor) is realised by means of integration of a specifically designed capillary electrochemical micro-droplet cell into a commercial wafer prober-station. The developed system allows the identification and selection of “good” ISFETs at the earliest stage and to avoid expensive bonding, encapsulation and packaging processes for nonfunctioning ISFETs and thus, to decrease costs, which are wasted for bad dies. The developed system is also feasible for wafer-level characterisation of ISFETs in terms of sensitivity, hysteresis and response time. Additionally, the system might be also utilised for wafer-level testing of further electrochemical sensors.
KW  - Biosensor
KW  - Biosensorik
KW  - ISFET
KW  - Wafer
KW  - ISFET
KW  - wafer-level testing
KW  - capillary micro-droplet cell
Y1  - 2006
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:a96-opus-1259
ER  - 
TY  - CHAP
A1  - Näther, Niko
A1  - Juárez, Leon M.
A1  - Emmerich, Rüdiger
A1  - Berger, Jörg
A1  - Friedrich, Peter
A1  - Schöning, Michael Josef
T1  - Detection of hydrogen peroxide (H2O2) at exposed temperatures for industrial processes
N2  - An H2O2 sensor for the application in industrial sterilisation processes has been developed. Therefore, automated sterilisation equipment at laboratory scale has been constructed using parts from industrial sterilisation facilities. In addition, a software tool has been developed for the control of the sterilisation equipment at laboratory scale. First measurements with the developed sensor set-up as part of the sterilisation equipment have been performed and the sensor has been physically characterised by optical microscopy and SEM.
KW  - Biosensor
KW  - Gas sensor
KW  - hydrogen peroxide
KW  - sterilisation
KW  - catalytic decomposition
Y1  - 2006
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:a96-opus-1418
ER  - 
TY  - CHAP
A1  - Förster, Arnold
A1  - Stock, Jürgen
A1  - Montanari, Simone
A1  - Lepsa, Mihail Ion
A1  - Lüth, Hans
T1  - Fabrication and characterisation of GaAs Gunn Diode Chips for applications at 77 GHz in automotive industry
N2  - GaAs-based Gunn diodes with graded AlGaAs hot electron injector heterostructures have been developed under the special needs in automotive applications. The fabrication of the Gunn diode chips was based on total substrate removal and processing of integrated Au heat sinks. Especially, the thermal and RF behavior of the diodes have been analyzed by DC, impedance and S-parameter measurements. The electrical investigations have revealed the functionality of the hot electron injector. An optimized layer structure could fulfill the requirements in adaptive cruise control (ACC) systems at 77 GHz with typical output power between 50 and 90 mW.
KW  - Biosensor
KW  - Gunn diode
KW  - microwave generation
KW  - GaAs hot electron injector
Y1  - 2006
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:a96-opus-1462
ER  - 
TY  - CHAP
A1  - Platen, Johannes
A1  - Poghossian, Arshak
A1  - Schöning, Michael Josef
T1  - Microstructured Nanostructures – nanostructuring by means of conventional photolithography and layer-expansion technique
N2  - A new and simple method for nanostructuring using conventional photolithography and layer expansion or pattern-size reduction technique is presented, which can further be applied for the fabrication of different nanostructures and nano-devices. The method is based on the conversion of a photolithographically patterned metal layer to a metal-oxide mask with improved pattern-size resolution using thermal oxidation. With this technique, the pattern size can be scaled down to several nanometer dimensions. The proposed method is experimentally demonstrated by preparing nanostructures with different configurations and layouts, like circles, rectangles, trapezoids, “fluidic-channel”-, “cantilever”- and meander-type structures.
KW  - Biosensor
KW  - Nanostructuring
KW  - layer expansion
KW  - pattern-size reduction
KW  - self-aligned patterning
Y1  - 2006
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:a96-opus-1477
ER  - 
TY  - CHAP
A1  - Arida, Hassan A.
A1  - Kloock, Joachim P.
A1  - Schöning, Michael Josef
T1  - Novel organic membrane-based thin-film microsensors for the determination of heavy metal cations
N2  - A first step towards the fabrication and electrochemical evaluation of thin-film microsensors based on organic PVC membranes for the determination of Hg(II), Cd(II), Pb(II) and Cu(II) ions in solutions has been realised. The membrane-coating mixture used in the preparation of this new type of microsensors is incorporating PVC as supporting matrix, o-nitrophenyloctylether (o-NPOE) as solvent mediator and a recently synthesized Hg[dimethylglyoxime(phene)]2+ and Bis-(4-hydroxyacetophenone)-ethylenediamine as electroactive materials for Hg(II) and Cd(II), respectively. A set of three commercialised ionophores for Cd(II), Pb(II) and Cu(II) has been also used for comparison. Thin-film microsensors based on these membranes showed a Nernstian response of slope (26-30 mV/dec.) for the respective tested cations. The potentiometric response characteristics (linear range, pH range, detection limit and response time) are comparable with those obtained by conventional membranes as well as coated wire electrodes prepared from the same membrane. The realisation of the new organic membrane-based thin-film microsensors overcomes the problem of an insufficient selectivity of solid-state-based thinfilm sensors.
KW  - Biosensor
KW  - Heavy metal detection
KW  - thin-film microsensors
KW  - organic PVC membranes
Y1  - 2006
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:a96-opus-1545
ER  - 
TY  - CHAP
A1  - Moreno, Lia
A1  - Dosev, D.
A1  - Bratov, A.
A1  - Dominguez, C.
A1  - Schöning, Michael Josef
A1  - Kloock, Joachim P.
T1  - Effect of electrical properties of the surrounding medium on the response of an interdigitated electrode array with chalcogenide glass film
T2  - XX Eurosensors : 20th anniversary ; Göteborg, Sweden, 17 - 20 September 2006 ; [proceedings]. - Vol. 1
Y1  - 2006
SN  - 978-91-631-9280-7
N1  - Paper number: T1A-P22
SP  - 384
EP  - 385
CY  - Göteborg
ER  - 
TY  - JOUR
A1  - Wu, Chunsheng
A1  - Bronder, Thomas
A1  - Poghossian, Arshak
A1  - Werner, Frederik
A1  - Schöning, Michael Josef
T1  - Label-free detection of DNA using light-addressable potentiometric sensor modified with a positively charged polyelectrolyte layer
JF  - Nanoscale
N2  - A multi-spot (16 spots) light-addressable potentiometric sensor (MLAPS) consisting of an Al–p-Si–SiO2 structure modified with a weak polyelectrolyte layer of PAH (poly(allylamine hydrochloride)) was applied for the label-free electrical detection of DNA (deoxyribonucleic acid) immobilization and hybridization by the intrinsic molecular charge for the first time. To achieve a preferentially flat orientation of DNA strands and thus, to reduce the distance between the DNA charge and MLAPS surface, the negatively charged probe single-stranded DNAs (ssDNA) were electrostatically adsorbed onto the positively charged PAH layer using a simple layer-by-layer (LbL) technique. In this way, more DNA charge can be positioned within the Debye length, yielding a higher sensor signal. The surface potential changes in each spot induced due to the surface modification steps (PAH adsorption, probe ssDNA immobilization, hybridization with complementary target DNA (cDNA), non-specific adsorption of mismatched ssDNA) were determined from the shifts of photocurrent–voltage curves along the voltage axis. A high sensor signal of 83 mV was registered after immobilization of probe ssDNA onto the PAH layer. The hybridization signal increases from 5 mV to 32 mV with increasing the concentration of cDNA from 0.1 nM to 5 μM. In contrast, a small signal of 5 mV was recorded in the case of non-specific adsorption of fully mismatched ssDNA (5 μM). The obtained results demonstrate the potential of the MLAPS in combination with the simple and rapid LbL immobilization technique as a promising platform for the future development of multi-spot light-addressable label-free DNA chips with direct electrical readout.
Y1  - 2015
U6  - http://dx.doi.org/10.1039/C4NR07225A
VL  - 14
IS  - 7
SP  - 6143
EP  - 6150
PB  - Royal Society of Chemistry (RSC)
CY  - Cambridge
ER  - 
TY  - JOUR
A1  - Beging, Stefan
A1  - Leinhos, Marcel
A1  - Jablonski, Melanie
A1  - Poghossian, Arshak
A1  - Schöning, Michael Josef
T1  - Studying the spatially resolved immobilisation of enzymes on a capacitive field-effect structure by means of nano-spotting
JF  - Physica status solidi (a)
Y1  - 2015
U6  - http://dx.doi.org/10.1002/pssa.201431891
SN  - 1862-6319
VL  - 212
IS  - 6
SP  - 1353
EP  - 1358
PB  - Wiley
CY  - Weinheim
ER  - 
TY  - CHAP
A1  - Poghossian, Arshak
A1  - Schöning, Michael Josef
T1  - Silicon-based chemical and biological field-effect sensors
T2  - Encyclopedia of Sensors. Vol. 9 S - Sk
Y1  - 2006
SN  - 1-58883-065-9
SP  - 463
EP  - 534
PB  - ASP, American Scientific Publ.
CY  - Stevenson Ranch, Calif.
ER  - 
TY  - JOUR
A1  - Poghossian, Arshak
A1  - Katz, Evgeny
A1  - Schöning, Michael Josef
T1  - Enzyme logic AND-Reset and OR-Reset gates based on a field-effect electronic transducer modified with multi-enzyme membrane
JF  - Chemical Communications
N2  - Capacitive field-effect sensors modified with a multi-enzyme membrane have been applied for an electronic transduction of biochemical signals processed by enzyme-based AND-Reset and OR-Reset logic gates. The local pH change at the sensor surface induced by the enzymatic reaction was used for the activation of the Reset function for the first time.
Y1  - 2015
U6  - http://dx.doi.org/10.1039/C5CC01362C
VL  - 51
SP  - 6564
EP  - 6567
PB  - Royal Society of Chemistry (RSC)
CY  - Cambridge
ER  - 
TY  - CHAP
A1  - Kirchner, Patrick
A1  - Henkel, H.
A1  - Näther, Niko
A1  - Spelthahn, H.
A1  - Schneider, A.
A1  - Berger, J.
A1  - Kolstad, J.
A1  - Friedrich, P.
A1  - Schöning, Michael Josef
T1  - RFID-basiertes Sensorsystem zur Realisierung intelligenter Verpackungen für die Nahrungsmittelindustrie
T2  - KMU - innovativ: IKT 2008. CD-ROM : BMBF-Statustagung KMU - innovativ: IKT, Darmstadt, 17. - 18. Nov. 2008
Y1  - 2008
IS  - CD-ROM-Ausg.
PB  - BMBF
CY  - Berlin
ER  - 
TY  - JOUR
A1  - Oberländer, Jan
A1  - Bromm, Alexander
A1  - Wendeler, Luisa
A1  - Iken, Heiko
A1  - Palomar Duran, Marlena
A1  - Greeff, Anton
A1  - Kirchner, Patrick
A1  - Keusgen, Michael
A1  - Schöning, Michael Josef
T1  - Towards a biosensor to monitor the sterilisation efficiency of aseptic filling machines
JF  - Physica status solidi (a)
N2  - Sterilisation processes are compulsory in medicine, pharmacy, and food industries to prevent infections of consumers and microbiological contaminations of products. Monitoring the sterilisation by conventional microbiological methods is time- and lab-consuming. To overcome this problem, in this work a novel biosensor has been proposed. The sensor enables a fast method to evaluate sterilisation processes. By means of thin-film technology the sensor's transducer structures in form of IDEs (interdigitated electrodes) have been fabricated on a silicon substrate. Physical characterisation of the developed sensor was done by AFM, SEM, and profilometry. Impedance analyses were conducted for the electrical characterisation. As microbiological layer spores of B. atrophaeus have been immobilised on the sensing structure; spores of this type are a well-known sterilisation test organism. Impedance measurements at a fixed frequency over time were performed to monitor the immobilisation process. A sterilisation process according to aseptic filling machines was applied to demonstrate the sensor functionality. After both, immobilisation and sterilisation, a change in impedance could successfully be detected.
Y1  - 2015
U6  - http://dx.doi.org/10.1002/pssa.201431900
SN  - 1862-6319
VL  - 212
IS  - 6
SP  - 1299
EP  - 1305
PB  - Wiley
CY  - Weinheim
ER  - 
TY  - JOUR
A1  - Huck, Christina
A1  - Poghossian, Arshak
A1  - Bäcker, Matthias
A1  - Reisert, Steffen
A1  - Kramer, Friederike
A1  - Begoyan, Vardges K.
A1  - Buniatyan, Vahe V.
A1  - Schöning, Michael Josef
T1  - Multi-parameter sensing using high-k oxide of barium strontium titanate
JF  - Physica status solidi (a)
N2  - High-k perovskite oxide of barium strontium titanate (BST) represents a very attractive multi-functional transducer material for the development of (bio-)chemical sensors. In this work, a Si-based sensor chip containing Pt interdigitated electrodes covered with a thin BST layer (485 nm) has been developed for multi-parameter chemical sensing. The chip has been applied for the contactless measurement of the electrolyte conductivity, the detection of adsorbed charged macromolecules (positively charged polyelectrolytes of polyethylenimine) and the concentration of hydrogen peroxide (H2O2) vapor. The experimental results of functional testing of individual sensors are presented. The mechanism of the BST sensitivity to charged polyelectrolytes and H2O2 vapor has been proposed and discussed.
Y1  - 2015
U6  - http://dx.doi.org/10.1002/pssa.201431911
SN  - 1862-6319
VL  - 212
IS  - 6
SP  - 1259
PB  - Wiley
CY  - Weinheim
ER  - 
TY  - JOUR
A1  - Jildeh, Zaid B.
A1  - Wagner, Torsten
A1  - Schöning, Michael Josef
A1  - Pieper, Martin
T1  - Simulating the electromagnetic‐thermal treatment of thin aluminium layers for adhesion improvement
JF  - Physica status solidi (a)
N2  - A composite layer material used in packaging industry is made from joining layers of different materials using an adhesive. An important processing step in the production of aluminium-containing composites is the surface treatment and consequent coating of adhesive material on the aluminium surface. To increase adhesion strength between aluminium layer and the adhesive material, the foil is heat treated. For efficient heating, induction heating was considered as state-of-the-art treatment process. Due to the complexity of the heating process and the unpredictable nature of the heating source, the control of the process is not yet optimised. In this work, a finite element analysis of the process was established and various process parameters were studied. The process was simplified and modelled in 3D. The numerical model contains an air domain, an aluminium layer and a copper coil fitted with a magnetic field concentrating material. The effect of changing the speed of the aluminium foil (or rolling speed) was studied with the change of the coil current. Statistical analysis was used for generating a general control equation of coil current with changing rolling speed.
Y1  - 2015
U6  - http://dx.doi.org/10.1002/pssa.201431893
SN  - 1862-6319
VL  - Vol. 212
IS  - 6
SP  - 1234
EP  - 1241
PB  - Wiley
CY  - Weinheim
ER  - 
TY  - JOUR
A1  - Pilas, Johanna
A1  - Iken, Heiko
A1  - Selmer, Thorsten
A1  - Keusgen, Michael
A1  - Schöning, Michael Josef
T1  - Development of a multi‐parameter sensor chip for the simultaneous detection of organic compounds in biogas processes
JF  - Physica status solidi (a)
N2  - An enzyme-based multi-parameter biosensor is developed for monitoring the concentration of formate, d-lactate, and l-lactate in biological samples. The sensor is based on the specific dehydrogenation by an oxidized β-nicotinamide adenine dinucleotide (NAD+)-dependent dehydrogenase (formate dehydrogenase, d-lactic dehydrogenase, and l-lactic dehydrogenase, respectively) in combination with a diaphorase from Clostridium kluyveri (EC 1.8.1.4). The enzymes are immobilized on a platinum working electrode by cross-linking with glutaraldehyde (GA). The principle of the determination scheme in case of l-lactate is as follows: l-lactic dehydrogenase (l-LDH) converts l-lactate into pyruvate by reaction with NAD+. In the presence of hexacyanoferrate(III), the resulting reduced β-nicotinamide adenine dinucleotide (NADH) is then regenerated enzymatically by diaphorase. The electrochemical detection is based on the current generated by oxidation of hexacyanoferrate(II) at an applied potential of +0.3 V vs. an Ag/AgCl reference electrode. The biosensor will be electrochemically characterized in terms of linear working range and sensitivity. Additionally, the successful practical application of the sensor is demonstrated in an extract from maize silage.
Y1  - 2015
U6  - http://dx.doi.org/10.1002/pssa.201431894
SN  - 1862-6319
VL  - 212
IS  - 6
SP  - 1306
EP  - 1312
PB  - Wiley
CY  - Weinheim
ER  - 
TY  - JOUR
A1  - Breuer, Lars
A1  - Raue, Markus
A1  - Kirschbaum, M.
A1  - Mang, Thomas
A1  - Schöning, Michael Josef
A1  - Thoelen, R.
A1  - Wagner, Torsten
T1  - Light-controllable polymeric material based on temperature-sensitive hydrogels with incorporated graphene oxide
JF  - Physica status solidi (a)
N2  - Poly(N-isopropylacrylamide) (PNIPAAm) hydrogel films with incorporated graphene oxide (GO) were developed and tested as light-stimulated actuators. GO dispersions were synthesized via Hummers method and characterized toward their optical properties and photothermal energy conversion. The hydrogels were prepared by means of photopolymerization. In addition, the influence of GO within the hydrogel network on the lower critical solution temperature (LCST) was investigated by differential scanning calorimetry (DSC). The optical absorbance and the response to illumination were determined as a function of GO concentration for thin hydrogel films. A proof of principle for the stimulation with light was performed.
Y1  - 2015
U6  - http://dx.doi.org/10.1002/pssa.201431944
SN  - 1862-6319
VL  - 212
IS  - 6
SP  - 1368
EP  - 1374
PB  - Wiley
CY  - Weinheim
ER  -