@article{BaeckerRakowskiPoghossianetal.2013, author = {B{\"a}cker, Matthias and Rakowski, D. and Poghossian, Arshak and Biselli, Manfred and Wagner, Patrick and Sch{\"o}ning, Michael Josef}, title = {Chip-based amperometric enzyme sensor system for monitoring of bioprocesses by flow-injection analysis}, series = {Journal of Biotechnology}, volume = {163}, journal = {Journal of Biotechnology}, number = {4}, publisher = {Elsevier}, address = {Amsterdam}, issn = {0168-1656}, doi = {10.1016/j.jbiotec.2012.03.014}, pages = {371 -- 376}, year = {2013}, abstract = {A microfluidic chip integrating amperometric enzyme sensors for the detection of glucose, glutamate and glutamine in cell-culture fermentation processes has been developed. The enzymes glucose oxidase, glutamate oxidase and glutaminase were immobilized by means of cross-linking with glutaraldehyde on platinum thin-film electrodes integrated within a microfluidic channel. The biosensor chip was coupled to a flow-injection analysis system for electrochemical characterization of the sensors. The sensors have been characterized in terms of sensitivity, linear working range and detection limit. The sensitivity evaluated from the respective peak areas was 1.47, 3.68 and 0.28 μAs/mM for the glucose, glutamate and glutamine sensor, respectively. The calibration curves were linear up to a concentration of 20 mM glucose and glutamine and up to 10 mM for glutamate. The lower detection limit amounted to be 0.05 mM for the glucose and glutamate sensor, respectively, and 0.1 mM for the glutamine sensor. Experiments in cell-culture medium have demonstrated a good correlation between the glutamate, glutamine and glucose concentrations measured with the chip-based biosensors in a differential-mode and the commercially available instrumentation. The obtained results demonstrate the feasibility of the realized microfluidic biosensor chip for monitoring of bioprocesses.}, language = {en} } @article{HuckPoghossianWagneretal.2012, author = {Huck, Christina and Poghossian, Arshak and Wagner, Patrick and Sch{\"o}ning, Michael Josef}, title = {Combined amperometric/field-effect sensor for the detection of dissolved hydrogen}, series = {Sensors and actuators B: Chemical}, volume = {187}, journal = {Sensors and actuators B: Chemical}, publisher = {Elsevier}, address = {Amsterdam}, issn = {0925-4005}, doi = {10.1016/j.snb.2012.10.050}, pages = {168 -- 173}, year = {2012}, abstract = {Real-time and reliable monitoring of the biogas process is crucial for a stable and efficient operation of biogas production in order to avoid digester breakdowns. The concentration of dissolved hydrogen (H₂) represents one of the key parameters for biogas process control. In this work, a one-chip integrated combined amperometric/field-effect sensor for monitoring the dissolved H₂ concentration has been developed for biogas applications. The combination of two different transducer principles might allow a more accurate and reliable measurement of dissolved H₂ as an early warning indicator of digester failures. The feasibility of the approach has been demonstrated by simultaneous amperometric/field-effect measurements of dissolved H₂ concentrations in electrolyte solutions. Both, the amperometric and the field-effect transducer show a linear response behaviour in the H₂ concentration range from 0.1 to 3\% (v/v) with a slope of 198.4 ± 13.7 nA/\% (v/v) and 14.9 ± 0.5 mV/\% (v/v), respectively.}, language = {en} } @article{PoghossianMaiMourzinaetal.2004, author = {Poghossian, Arshak and Mai, D.-T. and Mourzina, Y. and Sch{\"o}ning, Michael Josef}, title = {Impedance effect of an ion-sensitive membrane: characterisation of an EMIS sensor by impedance spectroscopy, capacitance-voltage and constant-capacitance method}, series = {Sensors and Actuators B. 103 (2004), H. 1-2}, journal = {Sensors and Actuators B. 103 (2004), H. 1-2}, isbn = {0925-4005}, pages = {423 -- 428}, year = {2004}, language = {en} } @article{HeuermannSadeghfam2008, author = {Heuermann, Holger and Sadeghfam, Arash}, title = {Electrically tunable bandpass filter with integrated carrier suppression for UHF RFID systems / Sadeghfam, Arash ; Heuermann, Holger}, series = {European Conference on Wireless Technology, 2008. EuWiT 2008.}, journal = {European Conference on Wireless Technology, 2008. EuWiT 2008.}, isbn = {978-2-87487-008-8}, pages = {306 -- 309}, year = {2008}, language = {en} } @article{Heuermann2008, author = {Heuermann, Holger}, title = {Calibration of a Network Analyzer Without a Thru Connection for Nonlinear and Multiport Measurements}, series = {IEEE Transactions on Microwave Theory and Techniques. 56 (2008), H. 11, 1}, journal = {IEEE Transactions on Microwave Theory and Techniques. 56 (2008), H. 11, 1}, isbn = {0018-9480}, pages = {2505 -- 2510}, year = {2008}, language = {en} } @article{SchoeningPoghossian2009, author = {Sch{\"o}ning, Michael Josef and Poghossian, Arshak}, title = {Silicon-based field-effect devices with nanostructured surfaces for bio-/chemical sensing}, 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 = {51 -- 53}, year = {2009}, language = {en} } @article{RauAlexopoulosBreitbachetal.2014, author = {Rau, Christoph and Alexopoulos, Spiros and Breitbach, Gerd and Hoffschmidt, Bernhard and Latzke, Markus and Sattler, Johannes Christoph}, title = {Transient simulation of a solar-hybrid tower power plant with open volumetric receiver at the location Barstow}, series = {Energy procedia : proceedings of the SolarPACES 2013 International Conference}, volume = {49}, journal = {Energy procedia : proceedings of the SolarPACES 2013 International Conference}, publisher = {Elsevier}, address = {Amsterdam}, issn = {1876-6102}, doi = {10.1016/j.egypro.2014.03.157}, pages = {1481 -- 1490}, year = {2014}, abstract = {In this work the transient simulations of four hybrid solar tower power plant concepts with open-volumetric receiver technology for a location in Barstow-Daggett, USA, are presented. The open-volumetric receiver uses ambient air as heat transfer fluid and the hybridization is realized with a gas turbine. The Rankine cycle is heated by solar-heated air and/or by the gas turbine's flue gases. The plant can be operated in solar-only, hybrid parallel or combined cycle-only mode as well as in any intermediate load levels where the solar portion can vary between 0 to 100\%. The simulated plant is based on the configuration of a solar-hybrid power tower project, which is in planning for a site in Northern Algeria. The meteorological data for Barstow-Daggett was taken from the software meteonorm. The solar power tower simulation tool has been developed in the simulation environment MATLAB/Simulink and is validated.}, language = {en} } @article{HeuermannThalayasingam2009, author = {Heuermann, Holger and Thalayasingam, K.}, title = {Novel vector non-linear measurement system for intermodulation measurements / Thalayasingam, K.; Heuermann, H.}, series = {European Microwave Conference, 2009 : EuMC 2009 ; Sept. 29, 2009 - Oct. 1, 2009, Rome, Italy ; part of European Microwave Week (EuMW) / sponsored by EuMA, European Microwave Association ... Endorsed by IEEE}, journal = {European Microwave Conference, 2009 : EuMC 2009 ; Sept. 29, 2009 - Oct. 1, 2009, Rome, Italy ; part of European Microwave Week (EuMW) / sponsored by EuMA, European Microwave Association ... Endorsed by IEEE}, publisher = {IEEE}, address = {Piscataway, NJ}, isbn = {978-1-4244-4748-0}, pages = {926 -- 929}, year = {2009}, language = {en} } @article{SpelthahnPoghossianSchoening2009, author = {Spelthahn, Heiko and Poghossian, Arshak and Sch{\"o}ning, Michael Josef}, title = {Self-aligned nanogaps and nanochannels via conventional photolithography and pattern-size reduction technique}, series = {Electrochimica Acta. 54 (2009), H. 25 Sp. Iss. SI}, journal = {Electrochimica Acta. 54 (2009), H. 25 Sp. Iss. SI}, isbn = {0013-4686}, pages = {6010 -- 6014}, year = {2009}, language = {en} } @article{RitzStender2006, author = {Ritz, Thomas and Stender, Michael}, title = {Modeling of B2B mobile commerce processes}, series = {International Journal of Production Economics}, volume = {101}, journal = {International Journal of Production Economics}, number = {1}, issn = {0925-5273}, doi = {10.1016/j.ijpe.2005.05.017}, pages = {128 -- 139}, year = {2006}, language = {en} } @article{BegingLeinhosJablonskietal.2015, author = {Beging, Stefan and Leinhos, Marcel and Jablonski, Melanie and Poghossian, Arshak and Sch{\"o}ning, Michael Josef}, title = {Studying the spatially resolved immobilisation of enzymes on a capacitive field-effect structure by means of nano-spotting}, series = {Physica status solidi (a)}, volume = {212}, journal = {Physica status solidi (a)}, number = {6}, publisher = {Wiley}, address = {Weinheim}, issn = {1862-6319}, doi = {10.1002/pssa.201431891}, pages = {1353 -- 1358}, year = {2015}, language = {en} } @article{WolfFoltzSchlicketal.1999, author = {Wolf, Martin R. and Foltz, Christian and Schlick, Christopher and Luczak, Holger}, title = {Groupware support for chemical process design / Wolf, M.; Foltz, C.; Schlick, C.; Luczak, H.}, series = {Human-computer interaction : proceedings of HCI International '99 (the 8th International Conference on Human-Computer Interaction), Munich, Germany, August 22 - 26, 1999}, journal = {Human-computer interaction : proceedings of HCI International '99 (the 8th International Conference on Human-Computer Interaction), Munich, Germany, August 22 - 26, 1999}, publisher = {Erlbaum}, address = {Mahwah, NJ}, pages = {343 -- 347}, year = {1999}, language = {en} } @article{StulpeBusch2008, author = {Stulpe, Werner and Busch, Paul}, title = {The structure of classical extensions of quantum probability theory}, series = {Journal of Mathematical Physics. 49 (2008), H. 3}, journal = {Journal of Mathematical Physics. 49 (2008), H. 3}, isbn = {1089-7658}, pages = {1 -- 22}, year = {2008}, language = {en} } @article{GoettscheGabryschDelahayeetal.2002, author = {G{\"o}ttsche, Joachim and Gabrysch, K. and Delahaye, A. and Schwarzer, Klemens}, title = {Solar-Campus Juelich - Energy performance and indoor climate}, series = {AIVC 23rd conference - EPIC 2002 AIVC (in conjunction with 3rd European Conference on Energy Performance and Indoor Climate in Buildings) - 23-26 October 2002 - Lyon - France - vol 2}, journal = {AIVC 23rd conference - EPIC 2002 AIVC (in conjunction with 3rd European Conference on Energy Performance and Indoor Climate in Buildings) - 23-26 October 2002 - Lyon - France - vol 2}, pages = {381 -- 386}, year = {2002}, language = {en} } @article{RussGoettsche2005, author = {Russ, Christel and G{\"o}ttsche, Joachim}, title = {Energieversorgung in Niedrigstenergie-Wohngeb{\"a}uden}, series = {W{\"a}rme und K{\"a}lte - Energie aus Sonne und Erde : Jahrestagung des Forschungsverbunds Sonnenenergie in Kooperation mit der Landesinitiative Zukunftsenergien NRW, 22.-23.09.2005 in K{\"o}ln / [Hrsg.: Gerd Stadermann]}, journal = {W{\"a}rme und K{\"a}lte - Energie aus Sonne und Erde : Jahrestagung des Forschungsverbunds Sonnenenergie in Kooperation mit der Landesinitiative Zukunftsenergien NRW, 22.-23.09.2005 in K{\"o}ln / [Hrsg.: Gerd Stadermann]}, publisher = {FVS}, address = {Berlin}, pages = {93 -- 98}, year = {2005}, language = {de} } @article{Goettsche2005, author = {G{\"o}ttsche, Joachim}, title = {Der vertikale Sonnenlichtquotient : Eine wichtige Kenngr{\"o}ße zur Charakterisierung von Lichtlenksystemen / G{\"o}ttsche, Joachim}, series = {Elftes Symposium Innovative Lichttechnik in Geb{\"a}uden : 27./28. Januar 2005, [Kloster Banz] / OTTI-Kolleg Beratung, Projekte}, journal = {Elftes Symposium Innovative Lichttechnik in Geb{\"a}uden : 27./28. Januar 2005, [Kloster Banz] / OTTI-Kolleg Beratung, Projekte}, publisher = {Ostbayerisches Technologie-Transfer-Inst., OTTI}, address = {Regensburg}, isbn = {3934681379}, pages = {79 -- 84}, year = {2005}, language = {de} } @article{Fabo1998, author = {Fabo, Sabine}, title = {Parallelprozess Literatur : Joseph Beuys' Zeichnungen zum Ulysses}, series = {Kunstforum international}, volume = {1998}, journal = {Kunstforum international}, number = {140}, isbn = {0177-3674}, pages = {84 -- 95}, year = {1998}, language = {de} } @article{BaeckerSchusserPoghossianetal.2013, author = {B{\"a}cker, Matthias and Schusser, Sebastian and Poghossian, Arshak and Sch{\"o}ning, Michael Josef}, title = {Degradationsverhalten bioabbaubarer Polymere : siliziumbasierte Sensorik zur {\"U}berwachung}, series = {GIT Labor-Fachzeitschrift}, journal = {GIT Labor-Fachzeitschrift}, publisher = {Wiley-VCH}, address = {Weinheim}, issn = {0016-3538}, pages = {32 -- 33}, year = {2013}, language = {de} } @article{GoettscheHoffschmidtBoehnischetal.2005, author = {G{\"o}ttsche, Joachim and Hoffschmidt, Bernhard and B{\"o}hnisch, Helmut and Herkel, Sebastian}, title = {Solarisierung von Altbauten / Bernhard Hoffschmidt ; Helmut B{\"o}hnisch ; Joachim G{\"o}ttsche ; Sebastian Herkel}, series = {W{\"a}rme und K{\"a}lte - Energie aus Sonne und Erde : Jahrestagung des Forschungsverbunds Sonnenenergie in Kooperation mit der Landesinitiative Zukunftsenergie NRW / Stadermann, Gerd, Hrsg.}, journal = {W{\"a}rme und K{\"a}lte - Energie aus Sonne und Erde : Jahrestagung des Forschungsverbunds Sonnenenergie in Kooperation mit der Landesinitiative Zukunftsenergie NRW / Stadermann, Gerd, Hrsg.}, publisher = {Forschungsverbund Sonnenenergie}, address = {Berlin}, pages = {99 -- 105}, year = {2005}, language = {de} } @article{BeverungenEggertVoigtetal.2013, author = {Beverungen, Daniel and Eggert, Mathias and Voigt, Matthias and Rosemann, Michael}, title = {Augmenting Analytical CRM Strategies with Social BI}, series = {International Journal of Business Intelligence Research (IJBIR)}, volume = {4}, journal = {International Journal of Business Intelligence Research (IJBIR)}, number = {3}, publisher = {IGI Global}, address = {Hershey}, issn = {1947-3591}, doi = {10.4018/ijbir.2013070103}, pages = {32 -- 49}, year = {2013}, language = {en} } @article{TranBongaertsVladetal.1997, author = {Tran, Quang Hon and Bongaerts, Johannes and Vlad, Dorina and Unden, Gottfried}, title = {Requirement for the proton-pumping NADH dehydrogenase I of Escherichia coli in respiration of NADH to fumarate and its bioenergetic implications}, series = {European journal of biochemistry}, volume = {Vol. 244}, journal = {European journal of biochemistry}, number = {Iss. 1}, issn = {0014-2956}, pages = {155 -- 160}, year = {1997}, language = {en} } @article{ThustPoghossianSchoeningetal.1999, author = {Thust, M. and Poghossian, Arshak and Sch{\"o}ning, Michael Josef and Naser, S. and M{\"u}ller-Veggian, Mattea and Kordos, P. and L{\"u}th, H.}, title = {Crosssensitivity of a capacitive penicillin sensor combined with a diffusion barrier}, series = {Proceedings : The Hague, The Netherlands, September 12 - 15, 1999 / [ed. by M. Bartek]. Vol 1.}, journal = {Proceedings : The Hague, The Netherlands, September 12 - 15, 1999 / [ed. by M. Bartek]. Vol 1.}, address = {The Hague, The Netherlands}, isbn = {90-76699-02-X}, pages = {573 -- 576}, year = {1999}, language = {en} } @article{Golland2018, author = {Golland, Alexander}, title = {Gemeinsame Verantwortlichkeit in mehrstufigen Verarbeitungsszenarien}, volume = {21}, number = {7-8}, publisher = {dfv Mediengruppe}, address = {Frankfurt a.M.}, issn = {1434-6354}, pages = {433 -- 438}, year = {2018}, abstract = {Die Rechtsfigur der gemeinsamen Verantwortlichkeit besch{\"a}ftigt die datenschutzrechtliche Literatur seit Langem. Die Bestimmung der Verantwortlichkeit bei arbeitsteiligen Verarbeitungsverfahren, welche vor allem bei heutigen Plattformdiensten {\"u}blich sind, ist komplex: Stets sind mehrere Akteure beteiligt und in der Regel werden durch die Handlung eines Beteiligten mehrere Verarbeitungsschritte ausgel{\"o}st. Nun hat sich der EuGH in einem in mehrfacher Hinsicht bemerkenswerten Urteil ge{\"a}ußert.}, language = {de} } @article{LaackRefischVogel1987, author = {Laack, Walter van and Refisch, A. and Vogel, P.}, title = {Polymyalgia rheumatica vom Beckeng{\"u}rteltyp: Eine seltene Differentialdiagnose der radikul{\"a}ren und pseudoradikul{\"a}ren Lumbalsyndrome. Fallbeschreibung und Literatur{\"u}bersicht / Refisch, A. ; Laack, W. van ; Vogel, P.}, series = {Orthop{\"a}dische Praxis. 23 (1987)}, journal = {Orthop{\"a}dische Praxis. 23 (1987)}, isbn = {0030-588x}, pages = {567}, year = {1987}, language = {de} } @article{WolfSimonSchlick1997, author = {Wolf, Martin R. and Simon, S. and Schlick, Christopher}, title = {Computergest{\"u}tzte Kooperation - Eine Seifenblase? / Wolf, M.; Simon, S.; Schlick, C.}, series = {Rechnergest{\"u}tzte Kooperation in Verwaltungen und großen Unternehmen : Tagungsband zum Workshop der GI-Gachgruppe / Peter Mambrey ... ( Hrsg.)}, journal = {Rechnergest{\"u}tzte Kooperation in Verwaltungen und großen Unternehmen : Tagungsband zum Workshop der GI-Gachgruppe / Peter Mambrey ... ( Hrsg.)}, publisher = {Univ., Fachbereich Mathematik u. Informatik}, address = {Essen}, pages = {220 -- 234}, year = {1997}, language = {de} } @article{Laack1986, author = {Laack, Walter van}, title = {Physiotherapeutische Behandlung nach Gelenkoperationen}, series = {Aktuelle Ergebnisse der Osteologie : Timmendorfer Strand, 21. - 23. November 1985 / hrsg. von P. Dietsch}, journal = {Aktuelle Ergebnisse der Osteologie : Timmendorfer Strand, 21. - 23. November 1985 / hrsg. von P. Dietsch}, publisher = {de Gruyter}, address = {Berlin}, isbn = {3-11-011147-0}, pages = {XIV, 343 S. : Ill., graph. Darst.}, year = {1986}, language = {de} } @article{WiegandVoigtAlbrechtetal.2013, author = {Wiegand, Sandra and Voigt, Birgit and Albrecht, Dirk and Bongaerts, Johannes and Evers, Stefan and Hecker, Michael and Daniel, Rolf and Liesegang, Heiko}, title = {Fermentation stage-dependent adaptations of Bacillus licheniformis during enzyme production}, series = {Microbial Cell Factories}, volume = {12}, journal = {Microbial Cell Factories}, publisher = {Biomed Central}, address = {London}, issn = {1475-2859}, doi = {10.1186/1475-2859-12-120}, pages = {120}, year = {2013}, language = {en} } @article{RitzHoof2002, author = {Ritz, Thomas and Hoof, Antonius J. M.}, title = {Personalisierung von Content basierten Services - Produktion von personalisierten Informationsdienstleistungen}, series = {Content Management : digitale Inhalte als Bausteine einer vernetzten Welt ; 18. Juni 2002, Stuttgart / Innovationsforum. Veranst. Verein zur F{\"o}rderung Produktionstechnischer Forschung e.V., Stuttgart. [Fraunhofer-Institut Arbeitswirtschaft und Organisatio}, journal = {Content Management : digitale Inhalte als Bausteine einer vernetzten Welt ; 18. Juni 2002, Stuttgart / Innovationsforum. Veranst. Verein zur F{\"o}rderung Produktionstechnischer Forschung e.V., Stuttgart. [Fraunhofer-Institut Arbeitswirtschaft und Organisatio}, publisher = {Fraunhofer-IRB-Verl.}, address = {Stuttgart}, isbn = {3-8167-6155-0}, pages = {91 -- 106}, year = {2002}, language = {de} } @article{TurdumamatovBeldaHeuermann2024, author = {Turdumamatov, Samat and Belda, Aljoscha and Heuermann, Holger}, title = {Shaping a decoupled atmospheric pressure microwave plasma with antenna structures, Maxwell's equations, and boundary conditions}, series = {IEEE Transactions on Plasma Science}, journal = {IEEE Transactions on Plasma Science}, number = {Early Access}, publisher = {IEEE}, issn = {0093-3813 (Print)}, doi = {10.1109/TPS.2024.3383589}, pages = {1 -- 9}, year = {2024}, abstract = {This article addresses the need for an innovative technique in plasma shaping, utilizing antenna structures, Maxwell's laws, and boundary conditions within a shielded environment. The motivation lies in exploring a novel approach to efficiently generate high-energy density plasma with potential applications across various fields. Implemented in an E01 circular cavity resonator, the proposed method involves the use of an impedance and field matching device with a coaxial connector and a specially optimized monopole antenna. This setup feeds a low-loss cavity resonator, resulting in a high-energy density air plasma with a surface temperature exceeding 3500 o C, achieved with a minimal power input of 80 W. The argon plasma, resembling the shape of a simple monopole antenna with modeled complex dielectric values, offers a more energy-efficient alternative compared to traditional, power-intensive plasma shaping methods. Simulations using a commercial electromagnetic (EM) solver validate the design's effectiveness, while experimental validation underscores the method's feasibility and practical implementation. Analyzing various parameters in an argon atmosphere, including hot S -parameters and plasma beam images, the results demonstrate the successful application of this technique, suggesting its potential in coating, furnace technology, fusion, and spectroscopy applications.}, language = {en} } @article{LeinhosSchusserBaeckeretal.2014, author = {Leinhos, Marcel and Schusser, Sebastian and B{\"a}cker, Matthias and Poghossian, Arshak and Sch{\"o}ning, Michael Josef}, title = {Micromachined multi-parameter sensor chip for the control of polymer-degradation medium}, series = {Physica Status Solidi (A) : special issue on engineering and functional interfaces}, volume = {211}, journal = {Physica Status Solidi (A) : special issue on engineering and functional interfaces}, 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.201330364}, pages = {1346 -- 1351}, year = {2014}, abstract = {It is well known that the degradation environment can strongly influence the biodegradability and kinetics of biodegradation processes of polymers. Therefore, besides the monitoring of the degradation process, it is also necessary to control the medium in which the degradation takes place. In this work, a micromachined multi-parameter sensor chip for the control of the polymer-degradation medium has been developed. The chip combines a capacitive field-effect pH sensor, a four-electrode electrolyte-conductivity sensor and a thin-film Pt-temperature sensor. The results of characterization of individual sensors are presented. In addition, the multi-parameter sensor chip together with an impedimetric polymer-degradation sensor was simultaneously characterized in degradation solutions with different pH and electrolyte conductivity. The obtained results demonstrate the feasibility of the multi-parameter sensor chip for the control of the polymer-degradation medium.}, language = {en} } @article{PoghossianAbouzarAmbergeretal.2007, author = {Poghossian, Arshak and Abouzar, Maryam H. and Amberger, F. and Mayer, D. and Han, Y. and Ingebrandt, S. and Offenh{\"a}usser, A. and Sch{\"o}ning, Michael Josef}, title = {Field-effect sensors with charged macromolecules: Characterisation by capacitance-voltage, constant-capacitance, impedance spectroscopy and atomic-force microscopy methods}, series = {Biosensors and Bioelectronics. 22 (2007), H. 9-10}, journal = {Biosensors and Bioelectronics. 22 (2007), H. 9-10}, isbn = {0956-5663}, pages = {2100 -- 2107}, year = {2007}, language = {en} } @article{SchusserMenzelBaeckeretal.2013, author = {Schusser, Sebastian and Menzel, S. and B{\"a}cker, Matthias and Leinhos, Marcel and Poghossian, Arshak and Wagner, P. and Sch{\"o}ning, Michael Josef}, title = {Degradation of thin poly(lactic acid) films: characterization by capacitance-voltage, atomic force microscopy, scanning electron microscopy and contact-angle measurements}, series = {Electrochimica Acta}, volume = {Vol. 113}, journal = {Electrochimica Acta}, publisher = {Elsevier}, address = {Amsterdam}, issn = {1873-3859 (E-Journal); 0013-4686 (Print)}, pages = {779 -- 784}, year = {2013}, language = {en} } @article{DigelDachwaldArtmannetal.2009, author = {Digel, Ilya and Dachwald, Bernd and Artmann, Gerhard and Linder, Peter and Funke, O.}, title = {A concept of a probe for particle analysis and life detection in icy environments}, pages = {1 -- 24}, year = {2009}, 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{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{MoseleyHalamekKrameretal.2014, author = {Moseley, Fiona and Halamek, Jan and Kramer, Friederike and Poghossian, Arshak and Sch{\"o}ning, Michael Josef and Katz, Evgeny}, title = {An enzyme-based reversible CNOT logic gate realized in a flow system}, series = {Analyst}, volume = {139}, journal = {Analyst}, number = {8}, publisher = {Royal Society of Chemistry}, address = {Cambridge}, issn = {1364-5528 (E-Journal) ; 0003-2654 (Print)}, doi = {10.1039/C4AN00133H}, pages = {1839 -- 1842}, year = {2014}, abstract = {An enzyme system organized in a flow device was used to mimic a reversible Controlled NOT (CNOT) gate with two input and two output signals. Reversible conversion of NAD⁺ and NADH cofactors was used to perform a XOR logic operation, while biocatalytic hydrolysis of p-nitrophenyl phosphate resulted in an Identity operation working in parallel. 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