@article{SchoeningPoghossianSchultzeetal.2002, author = {Sch{\"o}ning, Michael Josef and Poghossian, Arshak and Schultze, J. W. and L{\"u}th, H.}, title = {Field-effect based multifunctional hybrid sensor module for the determination of both (bio-)chemical and physical paramters}, series = {Proceedings of SPIE. 4576 (2002)}, journal = {Proceedings of SPIE. 4576 (2002)}, pages = {149 -- 159}, year = {2002}, language = {en} } @article{PoghossianJablonskiKochetal.2018, author = {Poghossian, Arshak and Jablonski, Melanie and Koch, Claudia and Bronder, Thomas and Rolka, David and Wege, Christina and Sch{\"o}ning, Michael Josef}, title = {Field-effect biosensor using virus particles as scaffolds for enzyme immobilization}, series = {Biosensors and Bioelectronics}, volume = {110}, journal = {Biosensors and Bioelectronics}, publisher = {Elsevier}, address = {Amsterdam}, issn = {0956-5663}, doi = {10.1016/j.bios.2018.03.036}, pages = {168 -- 174}, year = {2018}, abstract = {A field-effect biosensor employing tobacco mosaic virus (TMV) particles as scaffolds for enzyme immobilization is presented. Nanotubular TMV scaffolds allow a dense immobilization of precisely positioned enzymes with retained activity. To demonstrate feasibility of this new strategy, a penicillin sensor has been developed by coupling a penicillinase with virus particles as a model system. The developed field-effect penicillin biosensor consists of an Al-p-Si-SiO₂-Ta₂O₅-TMV structure and has been electrochemically characterized in buffer solutions containing different concentrations of penicillin G. In addition, the morphology of the biosensor surface with virus particles was characterized by scanning electron microscopy and atomic force microscopy methods. The sensors possessed a high penicillin sensitivity of ~ 92 mV/dec in a nearly-linear range from 0.1 mM to 10 mM, and a low detection limit of about 50 µM. The long-term stability of the penicillin biosensor was periodically tested over a time period of about one year without any significant loss of sensitivity. The biosensor has also been successfully applied for penicillin detection in bovine milk samples.}, language = {en} } @inproceedings{JablonskiKochBronderetal.2017, author = {Jablonski, Melanie and Koch, Claudia and Bronder, Thomas and Poghossian, Arshak and Wege, Christina and Sch{\"o}ning, Michael Josef}, title = {Field-Effect Biosensors Modified with Tobacco Mosaic Virus Nanotubes as Enzyme Nanocarrier}, series = {MDPI Proceeding}, volume = {1}, booktitle = {MDPI Proceeding}, number = {4}, doi = {10.3390/proceedings1040505}, pages = {4}, year = {2017}, language = {en} } @article{BegingMlynekHataihimakuletal.2010, author = {Beging, Stefan and Mlynek, Daniela and Hataihimakul, Sudkanung and Poghossian, Arshak and Baldsiefen, Gerhard and Busch, Heinz and Laube, Norbert and Kleinen, Lisa and Sch{\"o}ning, Michael Josef}, title = {Field-effect calcium sensor for the determination of the risk of urinary stone formation}, series = {Sensors and Actuators B: Chemical. 144 (2010), H. 2}, journal = {Sensors and Actuators B: Chemical. 144 (2010), H. 2}, pages = {374 -- 379}, year = {2010}, language = {en} } @article{PoghossianKarschuckWagneretal.2022, author = {Poghossian, Arshak and Karschuck, Tobias and Wagner, Patrick and Sch{\"o}ning, Michael Josef}, title = {Field-Effect Capacitors Decorated with Ligand-Stabilized Gold Nanoparticles: Modeling and Experiments}, series = {Biosensors}, volume = {12}, journal = {Biosensors}, number = {5}, publisher = {MDPI}, address = {Basel}, issn = {2079-6374}, doi = {10.3390/bios12050334}, pages = {Artikel 334}, year = {2022}, abstract = {Nanoparticles are recognized as highly attractive tunable materials for designing field-effect biosensors with enhanced performance. In this work, we present a theoretical model for electrolyte-insulator-semiconductor capacitors (EISCAP) decorated with ligand-stabilized charged gold nanoparticles. The charged AuNPs are taken into account as additional, nanometer-sized local gates. The capacitance-voltage (C-V) curves and constant-capacitance (ConCap) signals of the AuNP-decorated EISCAPs have been simulated. The impact of the AuNP coverage on the shift of the C-V curves and the ConCap signals was also studied experimentally on Al-p-Si-SiO₂ EISCAPs decorated with positively charged aminooctanethiol-capped AuNPs. In addition, the surface of the EISCAPs, modified with AuNPs, was characterized by scanning electron microscopy for different immobilization times of the nanoparticles.}, language = {en} } @article{PoghossianIngebrandtOffenhaeusseretal.2009, author = {Poghossian, Arshak and Ingebrandt, S. and Offenh{\"a}usser, A. and Sch{\"o}ning, Michael Josef}, title = {Field-effect devices for detecting cellular signals}, series = {Seminars in Cell \& Developmental Biology. 20 (2009), H. 1}, journal = {Seminars in Cell \& Developmental Biology. 20 (2009), H. 1}, publisher = {Elsevier}, address = {Amsterdam}, isbn = {1096-3634}, pages = {41 -- 48}, year = {2009}, language = {en} } @article{PoghossianWeilBaeckeretal.2012, author = {Poghossian, Arshak and Weil, M. H. and B{\"a}cker, Matthias and Mayer, D. and Sch{\"o}ning, Michael Josef}, title = {Field-effect Devices Functionalised with Gold-Nanoparticle/Macromolecule Hybrids: New Opportunities for a Label-Free Biosensing}, series = {Procedia Engineering}, journal = {Procedia Engineering}, number = {47}, publisher = {Elsevier}, address = {Amsterdam}, issn = {1877-7058}, doi = {10.1016/j.proeng.2012.09.136}, pages = {273 -- 276}, year = {2012}, abstract = {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.}, language = {en} } @article{GunSchoeningAbouzaretal.2008, author = {Gun, Jenny and Sch{\"o}ning, Michael Josef and Abouzar, Maryam H. and Poghossian, Arshak and Katz, Evgeny}, title = {Field-Effect Nanoparticle-Based Glucose Sensor on a Chip: Amplification Effect of Coimmobilized Redox Species}, series = {Electroanalysis. 20 (2008), H. 16}, journal = {Electroanalysis. 20 (2008), H. 16}, isbn = {1521-4109}, pages = {1748 -- 1753}, year = {2008}, language = {en} } @article{AbouzarIngebrandtPoghossianetal.2009, author = {Abouzar, Maryam H. and Ingebrandt, S. and Poghossian, Arshak and Zhang, Y. and Moritz, W. and Sch{\"o}ning, Michael Josef}, title = {Field-effect nanoplate capacitive pH sensor based on SOI structure}, series = {Semiconductor micro- and nanoelectronics : Proceedings of the Seventh International Conference , Tsakhcadzor, Armenia July 3-5 2009}, journal = {Semiconductor micro- and nanoelectronics : Proceedings of the Seventh International Conference , Tsakhcadzor, Armenia July 3-5 2009}, pages = {55 -- 58}, year = {2009}, language = {en} } @article{PoghossianAbouzarSakkarietal.2006, author = {Poghossian, Arshak and Abouzar, Maryam H. and Sakkari, M. and Kassab, T. and Han, Y. and Ingebrandt, S. and Offenh{\"a}usser, A. and Sch{\"o}ning, Michael Josef}, title = {Field-effect sensors for monitoring the layer-by-layer adsorption of charged macromolecules}, series = {Sensors and Actuators B: Chemical. 118 (2006), H. 1-2}, journal = {Sensors and Actuators B: Chemical. 118 (2006), H. 1-2}, isbn = {0925-4005}, pages = {163 -- 170}, year = {2006}, language = {en} }