TY  - JOUR
A1  - Huck, Christina
A1  - Poghossian, Arshak
A1  - Bäcker, Matthias
A1  - Chaudhuri, S.
A1  - Zander, W.
A1  - Schubert, J.
A1  - Begoyan, V. K.
A1  - Buniatyan, V. V.
A1  - Wagner, P.
A1  - Schöning, Michael Josef
T1  - Capacitively coupled electrolyte-conductivity sensor based on high-k material of barium strontium titanate
JF  - Sensors and actuators. B: Chemical
Y1  - 2014
U6  - http://dx.doi.org/10.1016/j.snb.2014.02.103
SN  - 1873-3077 (E-Journal); 0925-4005 (Print)
IS  - 198
SP  - 102
EP  - 109
PB  - Elsevier
CY  - Amsterdam
ER  - 
TY  - JOUR
A1  - Wu, Chunsheng
A1  - Bronder, Thomas
A1  - Poghossian, Arshak
A1  - Werner, Frederik
A1  - Bäcker, Matthias
A1  - Schöning, Michael Josef
T1  - Label-free electrical detection of DNA with a multi-spot LAPS: First step towards light-addressable DNA chips
JF  - Physica status solidi A : Applications and materials science
N2  - A multi-spot (4 × 4 spots) light-addressable potentiometric sensor (MLAPS) consisting of an Al–p-Si–SiO2 structure has been applied for the label-free electrical detection of DNA (deoxyribonucleic acid) immobilization and hybridization by the intrinsic molecular charge for the first time. Single-stranded probe ssDNA molecules (20 bases) were covalently immobilized onto the silanized SiO2 gate surface. The unspecific adsorption of mismatch ssDNA on the MLAPS gate surface was blocked by bovine serum albumin molecules. To reduce the screening effect and to achieve a high sensor signal, the measurements were performed in a low ionic-strength solution. The photocurrent–voltage (I–V) curves were simultaneously recorded on all 16 spots after each surface functionalization step. Large shifts of I–V curves of 25 mV were registered after the DNA immobilization and hybridization event. In contrast, a small potential shift (∼5 mV) was observed in case of mismatch ssDNA, revealing good specificity of the sensor. The obtained results demonstrate the potential of the MLAPS as promising transducer platform for the multi-spot label-free electrical detection of DNA molecules by their intrinsic molecular charge.
Y1  - 2014
U6  - http://dx.doi.org/10.1002/pssa.201330442
SN  - 1521-396X (E-Journal); 1862-6319 (E-Journal); 0031-8965 (Print); 1862-6300 (Print)
VL  - 211
IS  - 6
SP  - 1423
EP  - 1428
PB  - Wiley-VCH
CY  - Weinheim
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  - CHAP
A1  - Buniatyan, V. V.
A1  - Huck, Christina
A1  - Poghossian, Arshak
A1  - Schöning, Michael Josef
A1  - Rustamyan, L. G.
A1  - Hovnikyan, H. H.
T1  - Equivalent circuit and optimization of impedance characteristics of an electrolyte conductivity sensor
T2  - Proceedings of State Engineering University Armenia : Series Information technologies, electronics, radio engineering
Y1  - 2014
VL  - Iss. 17
IS  - No. 1
SP  - 69
EP  - 76
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  - 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  - 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  - 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  - 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  - Bronder, Thomas
A1  - Wu, Chunsheng
A1  - Poghossian, Arshak
A1  - Werner, Frederik
A1  - Keusgen, M.
A1  - Schöning, Michael Josef
T1  - Label-free detection of DNA hybridization with light-addressable potentiometric sensors: comparison of various DNA-immobilization strategies
JF  - Procedia Engineering
N2  - Light-addressable potentiometric sensors (LAPS) consisting of a p-Si-SiO2 and p-Si-SiO2-Au structure, respectively, have been tested for a label-free electrical detection of DNA (deoxyribonucleic acid) hybridization. Three different strategies for immobilizing single-stranded probe DNA (ssDNA) molecules on a LAPS surface have been studied and compared: (a) immobilization of thiol-modified ssDNA on the patterned Au surface via gold-thiol bond, (b) covalent immobilization of amino-modified ssDNA onto the SiO2 surface functionalized with 3-aminopropyltriethoxysilane and (c) layer-by-layer adsorption of negatively charged ssDNA on a positively charged weak polyelectrolyte layer of poly(allylamine hydrochloride).
KW  - LAPS
KW  - lable-free detection
KW  - DNA hybridization
KW  - field-effect sensor
Y1  - 2014
U6  - http://dx.doi.org/10.1016/j.proeng.2014.11.647
SN  - 1877-7058
N1  - EUROSENSORS 2014 ; European Conference on Solid-State Transducers <28, 2014>
VL  - 87
SP  - 755
EP  - 758
PB  - Elsevier
CY  - Amsterdam
ER  - 
TY  - JOUR
A1  - Huck, Christina
A1  - Poghossian, Arshak
A1  - Bäcker, Matthias
A1  - Reisert, Steffen
A1  - Schubert, J.
A1  - Zander, W.
A1  - Begoyan, V. K.
A1  - Buniatyan, V. V.
A1  - Schöning, Michael Josef
T1  - Chemical sensors based on a high-k perovskite oxide of barium strontium titanate
JF  - Procedia Engineering
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 for liquids. In this work, BST films have been applied as a sensitive transducer material for a label-free detection of adsorbed charged macromolecules (positively charged polyelectrolytes) and concentration of hydrogen peroxide vapor as well as protection insulator layer for a contactless electrolyte-conductivity sensor. The experimental results of characterization of individual sensors are presented. Special emphasis is devoted towards the development of a capacitively-coupled contactless electrolyte-conductivity sensor.
KW  - barium strontium titanate
KW  - high-k material
KW  - contactless conductivity sensor
KW  - multi-functional material
KW  - hydrogen peroxide
Y1  - 2014
U6  - http://dx.doi.org/10.1016/j.proeng.2014.11.258
SN  - 1877-7058
N1  - EUROSENSORS 2014 ; European Conference on Solid-State Transducers <28, 2014>
VL  - 87
SP  - 28
EP  - 31
PB  - Elsevier
CY  - Amsterdam
ER  - 
TY  - JOUR
A1  - Schusser, Sebastian
A1  - Bäcker, Matthias
A1  - Krischer, M.
A1  - Wenzel, L.
A1  - Leinhos, Marcel
A1  - Poghossian, Arshak
A1  - Biselli, Manfred
A1  - Wagner, P.
A1  - Schöning, Michael Josef
T1  - Enzymatically catalyzed degradation of biodegradable polymers investigated by means of a semiconductor-based field-effect sensor
JF  - Procedia Engineering
N2  - A semiconductor field-effect device has been used for an enzymatically catalyzed degradation of biopolymers for the first time. This novel technique is capable to monitor the degradation process of multiple samples in situ and in real-time. As model system, the degradation of the biopolymer poly(D, L-lactic acid) has been monitored in the degradation medium containing the enzyme lipase from Rhizomucor miehei. The obtained results demonstrate the potential of capacitive field-effect sensors for degradation studies of biodegradable polymers.
KW  - Field-effect sensor
KW  - enzymatic (bio)degradation
KW  - poly(d, l-lactic acid)
KW  - in-situ monitoring
KW  - impedance spectroscopy
Y1  - 2014
U6  - http://dx.doi.org/10.1016/j.proeng.2014.11.689
SN  - 1877-7058
N1  - EUROSENSORS 2014 ; European Conference on Solid-State Transducers <28, 2014>
VL  - 87
SP  - 1314
EP  - 1317
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  - 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  - 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  - 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  - 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  - 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  -