@article{HuckPoghossianKerroumietal.2014,
  author    = {Huck, Christina and Poghossian, Arshak and Kerroumi, Iman and Schusser, Sebastian and B{\"a}cker, Matthias and Zander, Willi and Schubert, J{\"u}rgen and Buniatyan, Vahe V. and Martirosyan, Norayr W. and Wagner, Patrick and Sch{\"o}ning, Michael Josef},
  title     = {Multiparameter sensor chip with Barium Strontium Titanate as multipurpose material},
  series = {Electroanalysis},
  volume    = {26},
  journal   = {Electroanalysis},
  number    = {5},
  publisher = {Wiley-VCH},
  address   = {Weinheim},
  issn      = {1521-4109 (E-Journal); 1040-0397 (Print)},
  doi       = {10.1002/elan.201400076},
  pages     = {980 -- 987},
  year      = {2014},
  abstract  = {It is well known that biochemical and biotechnological processes are strongly dependent and affected by a variety of physico-chemical parameters such as pH value, temperature, pressure and electrolyte conductivity. Therefore, these quantities have to be monitored or controlled in order to guarantee a stable process operation, optimization and high yield. In this work, a sensor chip for the multiparameter detection of three physico-chemical parameters such as electrolyte conductivity, pH and temperature is realized using barium strontium titanate (BST) as multipurpose material. The chip integrates a capacitively coupled four-electrode electrolyte-conductivity sensor, a capacitive field-effect pH sensor and a thin-film Pt-temperature sensor. Due to the multifunctional properties of BST, it is utilized as final outermost coating layer of the processed sensor chip and serves as passivation and protection layer as well as pH-sensitive transducer material at the same time. The results of testing of the individual sensors of the developed multiparameter sensor chip are presented. In addition, a quasi-simultaneous multiparameter characterization of the sensor chip in buffer solutions with different pH value and electrolyte conductivity is performed. To study the sensor behavior and the suitability of BST as multifunctional material under harsh environmental conditions, the sensor chip was exemplarily tested in a biogas digestate.},
  language  = {en}
}
@article{BaeckerKramerHucketal.2014,
  author    = {B{\"a}cker, Matthias and Kramer, F. and Huck, Christina and Poghossian, Arshak and Bratov, A. and Abramova, N. and Sch{\"o}ning, Michael Josef},
  title     = {Planar and 3D interdigitated electrodes for biosensing applications: The impact of a dielectric barrier on the sensor properties},
  series = {Physica Status Solidi (A) - Applications and Materials Science},
  volume    = {211},
  journal   = {Physica Status Solidi (A) - Applications and Materials Science},
  number    = {6},
  publisher = {Wiley-VCH},
  address   = {Weinheim},
  issn      = {1521-396X (E-Journal); 1862-6319 (E-Journal); 0031-8965 (Print); 1862-6300 (Print)},
  doi       = {10.1002/pssa.201330416},
  pages     = {1357 -- 1363},
  year      = {2014},
  abstract  = {Planar and three-dimensional (3D) interdigitated electrodes (IDE) with electrode digits separated by an insulating barrier of different heights were electrochemically characterized and compared in terms of their sensing properties. Due to the impact of the surface resistance, both types of IDE structures display a non-linear behavior in low-ionic strength solutions. The experimental data were fitted to an electrical equivalent circuit and interpreted taking into account the surface-charge-governed properties. The effect of a charged polyelectrolyte layer electrostatically assembled onto the sensor surface on the surface resistance in solutions with different KCl concentration is studied. In case of the same electrode footprint, 3D-IDEs show a larger cell constant and a higher sensitivity to molecular adsorption than that of planar IDEs. The obtained results demonstrate the potential of 3D-IDEs as a new transducer structure for a direct label-free sensing of charged molecules.},
  language  = {en}
}
@article{HuckPoghossianBaeckeretal.2014,
  author    = {Huck, Christina and Poghossian, Arshak and B{\"a}cker, Matthias and Chaudhuri, S. and Zander, W. and Schubert, J. and Begoyan, V. K. and Buniatyan, V. V. and Wagner, P. and Sch{\"o}ning, Michael Josef},
  title     = {Capacitively coupled electrolyte-conductivity sensor based on high-k material of barium strontium titanate},
  series = {Sensors and actuators. B: Chemical},
  journal   = {Sensors and actuators. B: Chemical},
  number    = {198},
  publisher = {Elsevier},
  address   = {Amsterdam},
  issn      = {1873-3077 (E-Journal); 0925-4005 (Print)},
  doi       = {10.1016/j.snb.2014.02.103},
  pages     = {102 -- 109},
  year      = {2014},
  language  = {en}
}
@article{SchoeningBiselliSelmeretal.2012,
  author    = {Sch{\"o}ning, Michael Josef and Biselli, Manfred and Selmer, Thorsten and {\"O}hlschl{\"a}ger, Peter and Baumann, Marcus and F{\"o}rster, Arnold and Poghossian, Arshak},
  title     = {Forschung „zwischen" den Disziplinen: das Institut f{\"u}r Nano- und Biotechnologien},
  series = {Analytik news : das Online-Labormagazin f{\"u}r Labor und Analytik},
  volume    = {Publ. online},
  journal   = {Analytik news : das Online-Labormagazin f{\"u}r Labor und Analytik},
  publisher = {Dr. Beyer Internet-Beratung},
  address   = {Ober-Ramstadt},
  pages     = {11 Seiten},
  year      = {2012},
  abstract  = {"Biologie trifft Mikroelektronik", das Motto des Instituts f{\"u}r Nano- und Biotechnologien (INB) an der FH Aachen, unterstreicht die zunehmende Bedeutung interdisziplin{\"a}r gepr{\"a}gter Forschungsaktivit{\"a}ten. Der thematische Zusammenschluss grundst{\"a}ndiger Disziplinen, wie die Physik, Elektrotechnik, Chemie, Biologie sowie die Materialwissenschaften, l{\"a}sst neue Forschungsgebiete entstehen, ein herausragendes Beispiel hierf{\"u}r ist die Nanotechnologie: Hier werden neue Werkstoffe und Materialien entwickelt, einzelne Nanopartikel oder Molek{\"u}le und deren Wechselwirkung untersucht oder Schichtstrukturen im Nanometerbereich aufgebaut, die neue und vorher nicht bekannte Eigenschaften hervorbringen. Vor diesem Hintergrund b{\"u}ndelt das im Jahre 2006 gegr{\"u}ndete INB die an der FH Aachen vorhandenen Kompetenzen von derzeit insgesamt sieben Laboratorien auf den Gebieten der Halbleitertechnik und Nanoelektronik, Nanostrukturen und DNA-Sensorik, der Chemo- und Biosensorik, der Enzymtechnologie, der Mikrobiologie und Pflanzenbiotechnologie, der Zellkulturtechnik, sowie der Roten Biotechnologie synergetisch. In der Nano- und Biotechnologie steckt außergew{\"o}hnliches Potenzial! Nicht zuletzt deshalb stellen sich die Forscher der Herausforderung, in diesem Bereich gemeinsam zu forschen und Schnittstellen zu nutzen, um so bei der Gestaltung neuartiger Ideen und Produkte mitzuwirken, die zuk{\"u}nftig unser allt{\"a}gliches Leben ver{\"a}ndern werden. Im Folgenden werden die verschiedenen Forschungsbereiche kurz zusammenfassend vorgestellt und vorhandene Interaktionen anhand von exemplarisch ausgew{\"a}hlten, aktuellen Forschungsprojekten skizziert.},
  language  = {de}
}
@article{WuBronderPoghossianetal.2014,
  author    = {Wu, Chunsheng and Bronder, Thomas and Poghossian, Arshak and Werner, Frederik and B{\"a}cker, Matthias and Sch{\"o}ning, Michael Josef},
  title     = {Label-free electrical detection of DNA with a multi-spot LAPS: First step towards light-addressable DNA chips},
  series = {Physica status solidi A : Applications and materials science},
  volume    = {211},
  journal   = {Physica status solidi A : Applications and materials science},
  number    = {6},
  publisher = {Wiley-VCH},
  address   = {Weinheim},
  issn      = {1521-396X (E-Journal); 1862-6319 (E-Journal); 0031-8965 (Print); 1862-6300 (Print)},
  doi       = {10.1002/pssa.201330442},
  pages     = {1423 -- 1428},
  year      = {2014},
  abstract  = {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.},
  language  = {en}
}
@incollection{PoghossianWeilandSchoening2014,
  author    = {Poghossian, Arshak and Weiland, Maryam and Sch{\"o}ning, Michael Josef},
  title     = {Nanoplate field-effect capacitors: a new transducer structure for multiparameter (bio-)chemical sensing},
  series = {Multisensor system for chemical analysis : materials and sensors},
  booktitle = {Multisensor system for chemical analysis : materials and sensors},
  editor    = {Lvova, Larisa and Kirsanov, Dmitry and di Natale, Corrado and Legin, Audrey},
  edition   = {1},
  publisher = {Jenny Stanford Publishing},
  address   = {Singapore},
  isbn      = {978-981-4411-15-8 ; 978-981-4411-16-5},
  doi       = {10.1201/b15491-11},
  pages     = {333 -- 373},
  year      = {2014},
  abstract  = {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.},
  language  = {en}
}
@inproceedings{BuniatyanHuckPoghossianetal.2014,
  author    = {Buniatyan, V. V. and Huck, Christina and Poghossian, Arshak and Sch{\"o}ning, Michael Josef and Rustamyan, L. G. and Hovnikyan, H. H.},
  title     = {Equivalent circuit and optimization of impedance characteristics of an electrolyte conductivity sensor},
  series = {Proceedings of State Engineering University Armenia : Series Information technologies, electronics, radio engineering},
  volume    = {Iss. 17},
  booktitle = {Proceedings of State Engineering University Armenia : Series Information technologies, electronics, radio engineering},
  number    = {No. 1},
  pages     = {69 -- 76},
  year      = {2014},
  language  = {en}
}
@incollection{SchoeningPoghossianGluecketal.2014,
  author    = {Sch{\"o}ning, Michael Josef and Poghossian, Arshak and Gl{\"u}ck, Olaf and Thust, Marion},
  title     = {Electrochemical methods for the determination of chemical variables in aqueous media},
  series = {Measurement, instrumentation, and sensors handbook / ed. by John G. Webster [u.a.] Vol. 2 : Electromagnetic, optical, radiation, chemical, and biomedical measurement},
  booktitle = {Measurement, instrumentation, and sensors handbook / ed. by John G. Webster [u.a.] Vol. 2 : Electromagnetic, optical, radiation, chemical, and biomedical measurement},
  publisher = {CRC Pr.},
  address   = {Boca Raton, Fla.},
  isbn      = {978-1-4398-4891-3},
  pages     = {55-1 -- 55-54},
  year      = {2014},
  language  = {en}
}
@article{BaeckerSchusserPoghossianetal.2014,
  author    = {B{\"a}cker, Matthias and Schusser, Sebastian and Poghossian, Arshak and Sch{\"o}ning, Michael Josef},
  title     = {Multi-Parametererfassung mit siliziumbasiertem Sensorchip: Aus Drei mach Eins},
  series = {GIT Labor-Fachzeitschrift},
  journal   = {GIT Labor-Fachzeitschrift},
  number    = {2},
  publisher = {Wiley},
  issn      = {0016-3538},
  pages     = {28 -- 30},
  year      = {2014},
  language  = {de}
}
@inproceedings{HuckPoghossianBuniatyanetal.2014,
  author    = {Huck, Christina and Poghossian, Arshak and Buniatyan, V. and Sch{\"o}ning, Michael Josef},
  title     = {Multi-parameter detection for supporting monitoring and control of biogas processes in agriculture},
  series = {Sensoren und Messsysteme 2014 ; Beitr{\"a}ge der 17. GMA/ITG-Fachtagung vom 3. bis 4. Juni 2014 in N{\"u}rnberg. (ITG-Fachbericht ; 250)},
  booktitle = {Sensoren und Messsysteme 2014 ; Beitr{\"a}ge der 17. GMA/ITG-Fachtagung vom 3. bis 4. Juni 2014 in N{\"u}rnberg. (ITG-Fachbericht ; 250)},
  publisher = {VDE-Verl.},
  address   = {Berlin},
  organization    = {VDI/VDE-Gesellschaft Mess- und Automatisierungstechnik},
  isbn      = {978-3-8007-3622-5},
  pages     = {1 -- 5},
  year      = {2014},
  language  = {en}
}
@inproceedings{WuBronderPoghossianetal.2014,
  author    = {Wu, Chunsheng and Bronder, Thomas and Poghossian, Arshak and Sch{\"o}ning, Michael Josef},
  title     = {DNA-hybridization detection using light-addressable potentiometric sensor modified with gold layer},
  series = {Sensoren und Messsysteme 2014 ; Beitr{\"a}ge der 17. GMA/ITG-Fachtagung vom 3. bis 4. Juni 2014 in N{\"u}rnberg. (ITG-Fachbericht ; 250)},
  booktitle = {Sensoren und Messsysteme 2014 ; Beitr{\"a}ge der 17. GMA/ITG-Fachtagung vom 3. bis 4. Juni 2014 in N{\"u}rnberg. (ITG-Fachbericht ; 250)},
  publisher = {VDE-Verl.},
  address   = {D{\"u}sseldorf},
  organization    = {VDI/VDE-Gesellschaft Mess- und Automatisierungstechnik},
  isbn      = {978-3-8007-3622-5},
  pages     = {1 -- 4},
  year      = {2014},
  language  = {en}
}
@inproceedings{BaeckerSchusserLeinhosetal.2014,
  author    = {B{\"a}cker, Matthias and Schusser, Sebastian and Leinhos, Marcel and Poghossian, Arshak and Sch{\"o}ning, Michael Josef},
  title     = {Sensor system for the monitoring of degradation processes of biodegradable biopolymers},
  series = {Sensoren und Messsysteme 2014 ; Beitr{\"a}ge der 17. GMA/ITG-Fachtagung vom 3. bis 4. Juni 2014 in N{\"u}rnberg. (ITG-Fachbericht ; 250)},
  booktitle = {Sensoren und Messsysteme 2014 ; Beitr{\"a}ge der 17. GMA/ITG-Fachtagung vom 3. bis 4. Juni 2014 in N{\"u}rnberg. (ITG-Fachbericht ; 250)},
  publisher = {VDE-Verl.},
  address   = {D{\"u}sseldorf},
  organization    = {VDI/VDE-Gesellschaft Mess- und Automatisierungstechnik},
  isbn      = {978-3-8007-3622-5},
  pages     = {1 -- 4},
  year      = {2014},
  language  = {en}
}
@article{PoghossianBaeckerMayeretal.2015,
  author    = {Poghossian, Arshak and B{\"a}cker, Matthias and Mayer, Dirk and Sch{\"o}ning, Michael Josef},
  title     = {Gating capacitive field-effect sensors by the charge of nanoparticle/molecule hybrids},
  series = {Nanoscale},
  journal   = {Nanoscale},
  publisher = {Royal Society of Chemistry (RSC)},
  address   = {Cambridge},
  issn      = {2040-3372 (E-Journal); 2040-3364 (Print)},
  doi       = {10.1039/C4NR05987E},
  pages     = {1023 -- 1031},
  year      = {2015},
  language  = {en}
}
@article{SchusserPoghossianBaeckeretal.2015,
  author    = {Schusser, Sebastian and Poghossian, Arshak and B{\"a}cker, Matthias and Krischer, M. and Leinhos, Marcel and Wagner, P. and Sch{\"o}ning, Michael Josef},
  title     = {An application of field-effect sensors for in-situ monitoring of degradation of biopolymers},
  series = {Sensors and actuators B: Chemical},
  volume    = {207, Part B},
  journal   = {Sensors and actuators B: Chemical},
  publisher = {Elsevier},
  address   = {Amsterdam},
  issn      = {1873-3077 (E-Journal); 0925-4005 (Print)},
  doi       = {10.1016/j.snb.2014.10.058},
  pages     = {954 -- 959},
  year      = {2015},
  abstract  = {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).},
  language  = {en}
}
@article{BronderWuPoghossianetal.2014,
  author    = {Bronder, Thomas and Wu, Chunsheng and Poghossian, Arshak and Werner, Frederik and Keusgen, M. and Sch{\"o}ning, Michael Josef},
  title     = {Label-free detection of DNA hybridization with light-addressable potentiometric sensors: comparison of various DNA-immobilization strategies},
  series = {Procedia Engineering},
  volume    = {87},
  journal   = {Procedia Engineering},
  publisher = {Elsevier},
  address   = {Amsterdam},
  issn      = {1877-7058},
  doi       = {10.1016/j.proeng.2014.11.647},
  pages     = {755 -- 758},
  year      = {2014},
  abstract  = {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).},
  language  = {en}
}
@article{HuckPoghossianBaeckeretal.2014,
  author    = {Huck, Christina and Poghossian, Arshak and B{\"a}cker, Matthias and Reisert, Steffen and Schubert, J. and Zander, W. and Begoyan, V. K. and Buniatyan, V. V. and Sch{\"o}ning, Michael Josef},
  title     = {Chemical sensors based on a high-k perovskite oxide of barium strontium titanate},
  series = {Procedia Engineering},
  volume    = {87},
  journal   = {Procedia Engineering},
  publisher = {Elsevier},
  address   = {Amsterdam},
  issn      = {1877-7058},
  doi       = {10.1016/j.proeng.2014.11.258},
  pages     = {28 -- 31},
  year      = {2014},
  abstract  = {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.},
  language  = {en}
}
@article{SchusserBaeckerKrischeretal.2014,
  author    = {Schusser, Sebastian and B{\"a}cker, Matthias and Krischer, M. and Wenzel, L. and Leinhos, Marcel and Poghossian, Arshak and Biselli, Manfred and Wagner, P. and Sch{\"o}ning, Michael Josef},
  title     = {Enzymatically catalyzed degradation of biodegradable polymers investigated by means of a semiconductor-based field-effect sensor},
  series = {Procedia Engineering},
  volume    = {87},
  journal   = {Procedia Engineering},
  publisher = {Elsevier},
  address   = {Amsterdam},
  issn      = {1877-7058},
  doi       = {10.1016/j.proeng.2014.11.689},
  pages     = {1314 -- 1317},
  year      = {2014},
  abstract  = {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.},
  language  = {en}
}
@inproceedings{NaetherPoghossianPlatenetal.2006,
  author    = {N{\"a}ther, Niko and Poghossian, Arshak and Platen, J. and Yoshinobu, T. and Koudelka-Hep, M. and Sch{\"o}ning, Michael Josef},
  title     = {Multi-parameter sensing of both physical and (bio-)chemical quantities using the same transducer principle},
  series = {Biochemical sensing utilisation of micro- and nanotechnologies : Warsaw, [23rd - 26th] November 2005 / ed. by M. Mascini ...},
  booktitle = {Biochemical sensing utilisation of micro- and nanotechnologies : Warsaw, [23rd - 26th] November 2005 / ed. by M. Mascini ...},
  address   = {Warsaw},
  pages     = {172 -- 181},
  year      = {2006},
  language  = {en}
}
@inproceedings{BegingPoghossianMlyneketal.2010,
  author    = {Beging, Stefan and Poghossian, Arshak and Mlynek, D. and Hataihimakul, S. and Pedraza, A. and Dhawan, S. and Laube, N. and Kleinen, L. and Baldsiefen, G. and Busch, H. and Sch{\"o}ning, Michael Josef},
  title     = {Ion-selective sensors for the determination of the risk of urinary stone formation},
  series = {Micro- and Nanosystems in biochemical diagnosis : Principles and applications},
  booktitle = {Micro- and Nanosystems in biochemical diagnosis : Principles and applications},
  address   = {Warsaw},
  pages     = {74 -- 80},
  year      = {2010},
  language  = {en}
}
@inproceedings{WeilPoghossianSchoeningetal.2012,
  author    = {Weil, M. and Poghossian, Arshak and Sch{\"o}ning, Michael Josef and Cherstvy, A.},
  title     = {Electrical monitoring of layer-by-layer adsorption of oppositely charged macromolecules by means of capacitive field-effect devices},
  isbn      = {978-3-9813484-2-2},
  doi       = {10.5162/IMCS2012/P2.5.2},
  pages     = {1575 -- 1578},
  year      = {2012},
  language  = {en}
}