TY - JOUR A1 - Schöning, Michael Josef A1 - Krause, R. A1 - Block, K. A1 - Musameh, M. A1 - Mulchandani, A. A1 - Wang, J. T1 - A dual amperometric / potentiometric FIA-based biosensor for the distinctive detection of organophosphorus pesticides JF - Book of abstracts / ed. by J. Saneistr. Y1 - 2002 SN - 80-01-02576-4 N1 - Eurosensors ; (16, 2002, Praha) SP - 76 EP - 79 PB - Czech Technical University, Faculty of Electrical Engineering, Department of Measurement CY - Prague ER - TY - JOUR A1 - Yoshinobu, T. A1 - Schöning, Michael Josef A1 - Otto, R. A1 - Furuichi, K. A1 - Mourzina, Yu A1 - Ermelenko, Yu A1 - Iwasaki, I. T1 - Portable light-addressable potentiometric sensor (LAPS) for multisensor applications JF - Book of abstracts / ed. by J. Saneistr. Y1 - 2002 SN - 80-01-02576-4 N1 - Eurosensors ; (16, 2002, Praha) SP - 898 EP - 901 PB - Czech Technical University, Faculty of Electrical Engineering, Department of Measurement CY - Prague ER - TY - JOUR A1 - Keusgen, M. A1 - Jünger, M. A1 - Schöning, Michael Josef T1 - Biosensoric detection of the cysteine sulphoxide alliin JF - Book of abstracts / ed. by J. Saneistr. Y1 - 2002 SN - 80-01-02576-4 N1 - Eurosensors ; (16, 2002, Praha) SP - 1175 EP - 1178 PB - Czech Technical University, Faculty of Electrical Engineering, Department of Measurement CY - Prague ER - TY - JOUR A1 - Schmitt, G. A1 - Werner, C. A1 - Schöning, Michael Josef T1 - Microelectrochemical efficiency evaluation of inhibitors for CO2 corrosion of carbon steel under high shear stress gradients JF - Corrosion 2002. Conference Proceedings. NACExpo, 57th Annual Conference and Exhibition, Denver, US, Apr 7-11, 2002 Y1 - 2002 N1 - Paper 02280 SP - 1 EP - 11 PB - NACE International CY - Houston, Texas ER - TY - JOUR A1 - Schöning, Michael Josef A1 - Steffen, A. A1 - Sanke, M. S. A1 - Müller-Veggian, Mattea T1 - Kapazitiver Silizium-Sensor als Ph-Transducer für Biosensoranwendungen JF - 13. Jahrestagung der Biotechnologen : Wiesbaden 30.05. - 01.06.1995 / Deutsche Gesellschaft für Chemisches Apparatewesen, Chemische Technik und Biotechnologie e.V., Frankfurt am Main. - Bd. 1 Y1 - 1995 N1 - Jahrestagung der Biotechnologen <13, 1995, Wiesbaden> ; Deutsche Gesellschaft für Chemisches Apparatewesen, Chemische Technik und Biotechnologie SP - 65 EP - 66 PB - DECHEMA CY - Frankfurt am Main ER - TY - JOUR A1 - Wagner, Torsten A1 - Molina, R. A1 - Biselli, Manfred A1 - Canzoneri, Michele A1 - Schnitzler, Thomas A1 - Yoshinobu, Tatsuo A1 - Schöning, Michael Josef T1 - A light-addressable potentiometric sensor system for fast, simultaneous and spatial detection of the metabolic activity of biological cells JF - Transducers '07 Eurosensors XXI : digest of technical papers ; the14th International Conference on Solid-State Sensors, Actuators and Microsystems, June 10-14, 2007, Lyon, France / Gilles Delapierre (Ed.) Y1 - 2007 SN - 1-4244-0841-5 N1 - Eurosensors 21, 2007, Lyon ; International Conference on Solid-State Sensors, Actuators and Microsystems 14, 2007, Lyon SP - 1107 EP - 1110 PB - IEEE CY - Piscataway ER - TY - JOUR A1 - Schöning, Michael Josef A1 - Kloock, Joachim P. T1 - About 20 years of silicon-based thin-film sensors with chalcogenide glass materials for heavy metal analysis: Technological aspects of fabrication and miniaturization JF - Electroanalysis. 19 (2007), H. 19-20 Y1 - 2007 SN - 1040-0397 SP - 2029 EP - 2038 ER - TY - JOUR A1 - Wagner, Torsten A1 - Schöning, Michael Josef T1 - Light-addressable potentiometric sensors (LAPS): recent trends and applications JF - Electrochemical sensor analysis / edited by S. Alegret ... Y1 - 2007 SN - 978-0-444-53053-0 N1 - Wilson & Wilson's comprehensive analytical chemistry ; 49 SP - 87 EP - 128 PB - Elsevier CY - Amsterdam ER - TY - JOUR A1 - Wagner, Torsten A1 - Kloock, Joachim P. A1 - Schöning, Michael Josef T1 - Determination of cadmium concentration and pH value in aqueous solutions by means of a handheld light-addressable potentiometric sensor (LAPS) device JF - Electrochemical sensor analysis / edited by S. Alegret ... Y1 - 2007 SN - 978-0-444-53133-9 N1 - Wilson & Wilson's comprehensive analytical chemistry ; 49 SP - e35 EP - e44 PB - Elsevier CY - Amsterdam ER - TY - JOUR A1 - Wagner, Torsten A1 - Werner, Frederik A1 - Miyamoto, Ko-Ichiro A1 - Schöning, Michael Josef A1 - Yoshinobu, Tatsuo T1 - Development and characterisation of a compact light-addressable potentiometric sensor (LAPS) based on the digital light processing (DLP) technology for flexible chemical imaging JF - Sensors and Actuators B: Chemical N2 - Chemical imaging systems allow the visualisation of the distribution of chemical species on the sensor surface. This work represents a new flexible approach to read out light-addressable potentiometric sensors (LAPS) with the help of a digital light processing (DLP) set-up. The DLP, known well for video projectors, consists of a mirror-array MEMS device, which allows fast and flexible generation of light patterns. With the help of these light patterns, the sensor surface of the LAPS device can be addressed. The DLP approach has several advantages compared to conventional LAPS set-ups, e.g., the spot size and the shape of the light pointer can be changed easily and no mechanical movement is necessary, which reduces the size of the set-up and increases the stability and speed of the measurement. In addition, the modulation frequency and intensity of the light beam are important parameters of the LAPS set-up. Within this work, the authors will discuss two different ways of light modulation by the DLP set-up, investigate the influence of different modulation frequencies and different light intensities as well as demonstrate the scanning capabilities of the new set-up by pH mapping on the sensor surface. Y1 - 2012 U6 - https://doi.org/10.1016/j.snb.2010.12.003 SN - 0925-4005 N1 - Part of special issue "Eurosensors XXIV, 2010" VL - 170 SP - 34 EP - 39 PB - Elsevier CY - Amsterdam ER - TY - JOUR A1 - Werner, Frederik A1 - Schusser, Sebastian A1 - Spalthahn, Heiko A1 - Wagner, Torsten A1 - Yoshinobu, Tatsuo A1 - Schöning, Michael Josef T1 - Field-programmable gate array based controller for multi spot light-addressable potentiometric sensors with integrated signal correction mode JF - Electrochimica Acta N2 - A light-addressable potentiometric sensor (LAPS) can measure the concentration of one or several analytes at the sensor surface simultaneously in a spatially resolved manner. A modulated light pointer stimulates the semiconductor structure at the area of interest and a responding photocurrent can be read out. By simultaneous stimulation of several areas with light pointers of different modulation frequencies, the read out can be performed at the same time. With the new proposed controller electronic based on a field-programmable gate array (FPGA), it is possible to control the modulation frequencies, phase shifts, and light brightness of multiple light pointers independently and simultaneously. Thus, it is possible to investigate the frequency response of the sensor, and to examine the analyte concentration by the determination of the surface potential with the help of current/voltage curves and phase/voltage curves. Additionally, the ability to individually change the light intensities of each light pointer is used to perform signal correction. Y1 - 2011 U6 - https://doi.org/10.1016/j.electacta.2011.03.012 SN - 0013-4686 VL - 56 IS - 26 SP - 9656 EP - 9660 PB - Elsevier CY - Amsterdam ER - TY - JOUR A1 - Paczkowski, Sebastian A1 - Weißbecker, Bernhard A1 - Schöning, Michael Josef A1 - Schütz, Stefan T1 - Biosensors on the Basis of Insect Olfaction JF - Insect biotechnology / Andreas Vilcinskas, ed. Y1 - 2011 SN - 978-90-481-9640-1 N1 - Biologically-inspired system ; 2 SP - 225 EP - 240 PB - Springer CY - Dordrecht [u.a.] ER - TY - JOUR A1 - Bohrn, Ulrich A1 - Stütz, Evamaria A1 - Fleischer, Maximilian A1 - Schöning, Michael Josef A1 - Wagner, Patrick T1 - Eukaryotic cell lines as a sensitive layer for direct monitoring of carbon monoxide JF - Physica status solidi (a) : applications and material science. 208 (2011), H. 6 Y1 - 2011 SN - 1862-6319 SP - 1345 EP - 1350 PB - Wiley CY - Weinheim ER - TY - JOUR A1 - Reisert, Steffen A1 - Geissler, Hanno A1 - Flörke, Rudolf A1 - Näther, Niko A1 - Wagner, Patrick A1 - Schöning, Michael Josef T1 - Towards a multi-sensor system for the evaluation of aseptic processes employing hydrogen peroxide vapour (H2O2) JF - Physica status solidi (a) : applications and material science. 208 (2011), H. 6 Y1 - 2011 SN - 1862-6319 SP - 1351 EP - 1356 PB - Wiley CY - Weinheim ER - TY - JOUR A1 - Wagner, Torsten A1 - Miyamoto, Ko-ichiro A1 - Shigihara, Noriko A1 - Schöning, Michael Josef A1 - Yoshinobu, Tatsuo T1 - Microfluidic systems with free definable sensor spots by an integrated light-addressable potentiometric sensor JF - Procedia Engineering. 25 (2011) Y1 - 2011 SN - 1877-7058 N1 - EurosensorsXXV ; Proc. Eurosensors XXV, September 4-7, 2011, Athens, Greece SP - 791 EP - 794 PB - Elsevier CY - Amsterdam ER - TY - JOUR A1 - Bohrn, U. A1 - Stütz, E. A1 - Fuchs, K. A1 - Fleischer, M. A1 - Schöning, Michael Josef A1 - Wagner, P. T1 - Air Quality Monitoring using a Whole-Cell based Sensor System JF - Procedia Engineering. 25 (2011) Y1 - 2011 SN - 1877-7058 N1 - EurosensorsXXV ; Proc. Eurosensors XXV, September 4-7, 2011, Athens, Greece SP - 1421 EP - 1424 PB - Elsevier CY - Amsterdam ER - TY - JOUR A1 - Werner, Frederik A1 - Wagner, Torsten A1 - Miyamoto, Ko-ichiro A1 - Yoshinobu, Tatsuo A1 - Schöning, Michael Josef T1 - High speed and high resolution chemical imaging based on a new type of OLED-LAPS set-up JF - Procedia Engineering. 25 (2011) Y1 - 2011 SN - 1877-7058 N1 - EurosensorsXXV ; Proc. Eurosensors XXV, September 4-7, 2011, Athens, Greece SP - 346 EP - 349 PB - Elsevier CY - Amsterdam ER - TY - JOUR A1 - Miyamoto, Ko-ichiro A1 - Kaneko, Kazumi A1 - Matsuo, Akira A1 - Wagner, Torsten A1 - Kanoh, Shiníchiro A1 - Schöning, Michael Josef A1 - Yoshinobu, Tatsuo T1 - Miniaturized chemical imaging sensor system using an OLED display panel JF - Sensors and Actuators B: Chemical N2 - The chemical imaging sensor is a semiconductor-based chemical sensor that can visualize the two-dimensional distribution of specific ions or molecules in the solution. In this study, we developed a miniaturized chemical imaging sensor system with an OLED display panel as a light source that scans the sensor plate. In the proposed configuration, the display panel is placed directly below the sensor plate and illuminates the back surface. The measured area defined by illumination can be arbitrarily customized to fit the size and the shape of the sample to be measured. The waveform of the generated photocurrent, the current–voltage characteristics and the pH sensitivity were investigated and pH imaging with this miniaturized system was demonstrated. KW - LAPS KW - Light-addressable potentiometric sensor KW - Chemical imaging sensor KW - Organic light-emitting diode display Y1 - 2012 U6 - https://doi.org/10.1016/j.snb.2011.02.029 SN - 0925-4005 N1 - Part of special issue "Eurosensors XXIV, 2010" VL - 170 SP - 82 EP - 87 PB - Elsevier CY - Amsterdam ER - TY - JOUR A1 - Iken, Heiko A1 - Kirsanov, D. A1 - Legin, A. A1 - Schöning, Michael Josef T1 - Novel Thin-Film Polymeric Materials for the Detection of Heavy Metals JF - Procedia Engineering N2 - A variety of transition metals, e.g., copper, zinc, cadmium, lead, etc. are widely used in industry as components for wires, coatings, alloys, batteries, paints and so on. The inevitable presence of transition metals in industrial processes implies the ambition of developing a proper analytical technique for their adequate monitoring. Most of these elements, especially lead and cadmium, are acutely toxic for biological organisms. Quantitative determination of these metals at low activity levels in different environmental and industrial samples is therefore a vital task. A promising approach to achieve an at-side or on-line monitoring on a miniaturized and cost efficient way is the combination of a common potentiometric sensor array with heavy metal-sensitive thin-film materials, like chalcogenide glasses and polymeric materials, respectively. Y1 - 2012 U6 - https://doi.org/10.1016/j.proeng.2012.09.148 SN - 1877-7058 N1 - Part of special issue "26th European Conference on Solid-State Transducers, EUROSENSOR 2012" IS - 47 SP - 322 EP - 325 PB - Elsevier CY - Amsterdam ER - TY - JOUR A1 - Miyamoto, K. A1 - Ichimura, H. A1 - Wagner, Torsten A1 - Yoshinobu, T. A1 - Schöning, Michael Josef T1 - Chemical Imaging of ion Diffusion in a Microfluidic Channel JF - Procedia Engineering N2 - The chemical imaging sensor is a chemical sensor which is capable of visualizing the spatial distribution of chemical species in sample solution. In this study, a novel measurement system based on the chemical imaging sensor was developed to observe the inside of a Y-shaped microfluidic channel while injecting two sample solutions from two branches. From the collected chemical images, it was clearly observed that the injected solutions formed laminar flows in the microfluidic channel. In addition, ion diffusion across the laminar flows was observed. This label-free method can acquire quantitative data of ion distribution and diffusion in microfluidic devices, which can be used to determine the diffusion coefficients, and therefore, the molecular weights of chemical species in the sample solution. Y1 - 2012 U6 - https://doi.org/10.1016/j.proeng.2012.09.289 SN - 1877-7058 N1 - Part of special issue "26th European Conference on Solid-State Transducers, EUROSENSOR 2012" IS - 47 SP - 886 EP - 889 PB - Elsevier CY - Amsterdam ER - TY - JOUR A1 - Wagner, Torsten A1 - Shigiahara, N. A1 - Miyamoto, K. A1 - Suzurikawa, J. A1 - Finger, F. A1 - Schöning, Michael Josef A1 - Yoshinobu, T. T1 - Light-addressable Potentiometric Sensors and Light–addressable Electrodes as a Combined Sensor-and-manipulator Microsystem with High Flexibility JF - Procedia Engineering N2 - This work describes the novel combination of the light-addressable electrode (LAE) and the light-addressable potentiometric sensor (LAPS) into a microsystem set-up. Both the LAE as well as the LAPS shares the principle of addressing the active spot by means of a light beam. This enables both systems to manipulate resp. to detect an analyte with a high spatial resolution. Hence, combining both principles into a single set-up enables the active stimulation e.g., by means of electrolysis and a simultaneous observation e.g., the response of an entrapped biological cell by detection of extracellular pH changes. The work will describe the principles of both technologies and the necessary steps to integrate them into a single set-up. Furthermore, examples of application and operation of such systems will be presented. Y1 - 2012 U6 - https://doi.org/10.1016/j.proeng.2012.09.290 SN - 1877-7058 N1 - Part of special issue "26th European Conference on Solid-State Transducers, EUROSENSOR 2012" IS - 47 SP - 890 EP - 893 PB - Elsevier CY - Amsterdam ER - TY - JOUR A1 - Murib, Mohammed S. A1 - Tran, Anh Quang A1 - Ceuninck, Ward de A1 - Schöning, Michael Josef A1 - Nesladek, Milos A1 - Serpengüzel, Ali A1 - Wagner, Patrick T1 - Analysis of an optical biosensor based on elastic light scattering from diamond-, glass-, and sapphire microspheres JF - Physica Status Solidi A N2 - Deoxyribonucleic acid (DNA) and protein recognition are now standard tools in biology. In addition, the special optical properties of microsphere resonators expressed by the high quality factor (Q-factor) of whispering gallery modes (WGMs) or morphology dependent resonances (MDRs) have attracted the attention of the biophotonic community. Microsphere-based biosensors are considered as powerful candidates to achieve label-free recognition of single molecules due to the high sensitivity of their WGMs. When the microsphere surface is modified with biomolecules, the effective refractive index and the effective size of the microsphere change resulting in a resonant wavelength shift. The transverse electric (TE) and the transverse magnetic (TM) elastic light scattering intensity of electromagnetic waves at 600 and 1400 nm are numerically calculated for DNA and unspecific binding of proteins to the microsphere surface. The effect of changing the optical properties was studied for diamond (refractive index 2.34), glass (refractive index 1.50), and sapphire (refractive index 1.75) microspheres with a 50 µm radius. The mode spacing, the linewidth of WGMs, and the shift of resonant wavelength due to the change in radius and refractive index, were analyzed by numerical simulations. Preliminary results of unspecific binding of biomolecules are presented. The calculated shift in WGMs can be used for biomolecules detection. Y1 - 2012 U6 - https://doi.org/10.1002/pssa.201100795 SN - 1862-6319 N1 - Special Issue: "Fundamentals and Applications of Diamond" VL - 209 IS - 9 SP - 1804 EP - 1810 PB - Wiley-VCH CY - Weinheim ER - TY - JOUR A1 - Bohrn, Ulrich A1 - Stütz, Evamaria A1 - Fleischer, Maximilian A1 - Schöning, Michael Josef A1 - Wagner, Patrick T1 - Using a cell-based gas biosensor for investigation of adverse effects of acetone vapors in vitro JF - Biosensors and Bioelectronics. 40 (2013), H. 1 Y1 - 2013 SN - 0956-5663 SP - 393 EP - 400 PB - Elsevier CY - Amsterdam ER - TY - JOUR A1 - Hennemann, Jörg A1 - Kohl, Claus-Dieter A1 - Reisert, Steffen A1 - Kirchner, Patrick A1 - Schöning, Michael Josef T1 - Copper oxide nanofibres for detection of hydrogen peroxide vapour at high concentrations JF - physica status solidi (a) N2 - We present a sensor concept based on copper(II)oxide (CuO) nanofibres for the detection of hydrogen peroxide (H2O2) vapour in the percent per volume (% v/v) range. The fibres were produced by using the electrospinning technique. To avoid water condensation in the pores, the fibres were initially modified by an exposure to H2S to get an enclosed surface. By a thermal treatment at 350 °C the fibres were oxidised back to CuO. Thereby, the visible pores disappear which was verified by SEM analysis. The fibres show a decrease of resistance with increasing H2O2 concentration which is due to the fact that hydrogen peroxide is an oxidising gas and CuO a p-type semiconductor. The sensor shows a change of resistance within the minute range to the exposure until the maximum concentration of 6.9% v/v H2O2. At operating temperatures below 450 °C the corresponding sensor response to a concentration of 4.1% v/v increases. The sensor shows a good reproducibility of the signal at different measurements. CuO seems to be a suitable candidate for the detection of H2O2 vapour at high concentrations. Resistance behaviour of the sensor under exposure to H2O2 vapours between 2.3 and 6.9% v/v at an operating temperature of 450 °C. Y1 - 2013 U6 - https://doi.org/10.1002/pssa.201200775 SN - 1862-6319 VL - 210 IS - 5 SP - 859 EP - 863 PB - Wiley CY - Weinheim ER - TY - JOUR A1 - Reisert, Steffen A1 - Schneider, Benno A1 - Geissler, Hanno A1 - Gompel, Matthias van A1 - Wagner, Patrick A1 - Schöning, Michael Josef T1 - Multi-sensor chip for the investigation of different types of metal oxides for the detection of H2O2 in the ppm range JF - physica status solidi (a) N2 - In this work, a multi-sensor chip for the investigation of the sensing properties of different types of metal oxides towards hydrogen peroxide in the ppm range is presented. The fabrication process and physical characterization of the multi-sensor chip are described. Pure SnO2 and WO3 as well as Pd- and Pt-doped SnO2 films are characterized in terms of their sensitivity to H2O2. The sensing films have been prepared by drop-coating of water-dispensed nano-powders. A physical characterization, including scanning electron microscopy and X-ray diffraction analysis of the deposited metal-oxide films, was done. From the measurements in hydrogen peroxide atmosphere, it could be shown, that all of the tested metal oxide films are suitable for the detection of H2O2 in the ppm range. The highest sensitivity and reproducibility was achieved using Pt-doped SnO2. Calibration plot of a SnO2, WO3, Pt-, and Pd-doped SnO2 gas sensor for H2O2 concentrations in the ppm range. Y1 - 2013 SN - 1862-6319 VL - 210 IS - 5 SP - 898 EP - 904 PB - Wiley CY - Weinheim ER - TY - JOUR A1 - Miyamoto, Ko-ichiro A1 - Ichimura, Hiroki A1 - Wagner, Torsten A1 - Schöning, Michael Josef A1 - Yoshinobu, Tatsuo T1 - Chemical imaging of the concentration profile of ion diffusion in a microfluidic channel JF - Sensors and actuators. B: Chemical N2 - The chemical imaging sensor is a device to visualize the spatial distribution of chemical species based on the principle of LAPS (light-addressable potentiometric sensor), which is a field-effect chemical sensor based on semiconductor. In this study, the chemical imaging sensor has been applied to investigate the ion profile of laminar flows in a microfluidic channel. The chemical images (pH maps) were collected in a Y-shaped microfluidic channel while injecting HCl and NaCl solutions into two branches. From the chemical images, it was clearly observed that the injected solutions formed laminar flows in the channel. In addition, ion diffusion across the laminar flows was observed, and the diffusion coefficient could be derived by fitting the pH profiles to the Fick's equation. Y1 - 2013 U6 - https://doi.org/10.1016/j.snb.2013.04.057 SN - 1873-3077 (E-Journal); 0925-4005 (Print) N1 - Part of special issue "Selected Papers from the 26th European Conference on Solid-State Transducers" VL - 189 SP - 240 EP - 245 PB - Elsevier CY - Amsterdam ER - TY - JOUR A1 - Bohrn, Ulrich A1 - Mucha, Andreas A1 - Werner, Frederik A1 - Trattner, Barbara A1 - Bäcker, Matthias A1 - Krumbe, Christoph A1 - Schienle, Meinrad A1 - Stütz, Evamaria A1 - Schmitt-Landsiedel, Doris A1 - Fleischer, Maximilian A1 - Wagner, Patrick A1 - Schöning, Michael Josef T1 - A critical comparison of cell-based sensor systems for the detection of Cr (VI) in aquatic environment JF - Sensors and actuators. B: Chemical Y1 - 2013 SN - 1873-3077 (E-Journal); 0925-4005 (Print) VL - Vol. 182 SP - 58 EP - 65 PB - Elsevier CY - Amsterdam ER - TY - JOUR A1 - Wagner, Torsten A1 - Molina, Roberto A1 - Yoshinobu, Tatsuo A1 - Kloock, Joachim P. A1 - Biselli, Manfred A1 - Canzoneri, Michele A1 - Schnitzler, Thomas A1 - Schöning, Michael Josef T1 - Handheld multi-channel LAPS device as a transducer platform for possible biological and chemical multi-sensor applications JF - Electrochimica Acta. 53 (2007), H. 2 Y1 - 2007 SN - 0013-4686 SP - 305 EP - 311 ER - TY - JOUR A1 - Reisert, Steffen A1 - Henkel, Hartmut A1 - Schneider, Andreas A1 - Schäfer, Daniel A1 - Friedrich, Peter A1 - Berger, Jörg A1 - Schöning, Michael Josef T1 - Development of a handheld sensor system for the online measurement of hydrogen peroxide in aseptic filling systems JF - Physica Status Solidi (A). 207 (2010), H. 4 Y1 - 2010 SN - 1862-6300 N1 - Special Issue: Engineering of Functional Interfaces EnFI 2009 SP - 913 EP - 918 ER - TY - JOUR A1 - Miyamoto, Ko-ichiro A1 - Sugawara, Yuri A1 - Kanoh, Shin´ichiro A1 - Yoshinobu, Tatsuo A1 - Wagner, Torsten A1 - Schöning, Michael Josef T1 - Image correction method for the chemical imaging sensor JF - Sensors and Actuators B: Chemical. 144 (2010), H. 2 Y1 - 2010 N1 - 22nd International Conference on Eurosensors - Dresden, Germany, 7-10 September 2008 ; Eurosensors ; (22, 2008, Dresden) SP - 344 EP - 348 ER - TY - JOUR A1 - Kirchner, Patrick A1 - Li, B. A1 - Spelthahn, H. A1 - Henkel, H. A1 - Schneider, A. A1 - Kolstad, J. A1 - Friedrich, P. A1 - Schöning, Michael Josef T1 - Realisierung eines miniaturisierten Gassensors in Chiptechnologie basierend auf einer Dünnschicht-Thermosäule zur H2O2-Detektion in aseptischen Abfüllanlagen JF - 9. Dresdner Sensor-Symposium : Dresden, 07.-09. Dezember 2009 / Gerlach, Gerald ; Hauptmann, Peter [Hrsg.] Y1 - 2009 SN - 978-3-941298-44-6 N1 - Dresdner Sensor-Symposium ; (9, 2009, Dresden) SP - 293 EP - 296 PB - TUDpress CY - Dresden ER - TY - JOUR A1 - Reisert, Steffen A1 - Henkel, H. A1 - Schneider, A. A1 - Schäfer, D. A1 - Friedrich, P. A1 - Berger, J. A1 - Schöning, Michael Josef T1 - Entwicklung eines Handheld-Sensorsystems für die „On-line“-Messung der H2O2-Konzentration in aseptischen Entkeimungsprozessen JF - 9. Dresdner Sensor-Symposium : Dresden, 07.-09. Dezember 2009 / Gerlach, Gerald ; Hauptmann, Peter [Hrsg.] Y1 - 2009 SN - 978-3-941298-44-6 N1 - Dresdner Sensor-Symposium ; (9, 2009, Dresden) SP - 285 EP - 288 PB - TUDpress CY - Dresden ER - TY - JOUR A1 - Werner, Frederik A1 - Groebel, Simone A1 - Schuhmacher, K. A1 - Spelthahn, Heiko A1 - Wagner, Torsten A1 - Selmer, Thorsten A1 - Baumann, Marcus A1 - Schöning, Michael Josef T1 - Bestimmung der metabolischen Aktivität von Mikroorganismen während des Biogasbildungsprozesses JF - 9. Dresdner Sensor-Symposium : Dresden, 07.-09. Dezember 2009 / Gerlach, Gerald ; Hauptmann, Peter [Hrsg.] Y1 - 2009 SN - 978-3-941298-44-6 N1 - Dresdner Sensor-Symposium ; (9, 2009, Dresden) SP - 201 EP - 204 PB - TUDpress CY - Dresden ER - TY - JOUR A1 - Wagner, Torsten A1 - Werner, Frederik A1 - Miyamoto, K. A1 - Schöning, Michael Josef A1 - Yoshinobu, T. T1 - A high-density multi-point LAPS set-up using a VCSEL array and FPGA control JF - Procedia Chemistry. 1 (2009), H. 1 Y1 - 2009 SN - 1876-6196 N1 - Proceedings of the Eurosensors XXIII conference ; Eurosensors 23 SP - 1483 EP - 1486 PB - Elsevier CY - Amsterdam ER - TY - JOUR A1 - Miyamoto, Ko-ichiro A1 - Wagner, Torsten A1 - Mimura, Shuhei A1 - Kanoh, Shin`ichiro A1 - Yoshinobu, Tatsuo A1 - Schöning, Michael Josef T1 - Constant-phase-mode operation of the light-addressable potentiometric sensor JF - Procedia Chemistry. 1 (2009), H. 1 Y1 - 2009 SN - 1876-6196 N1 - Proceedings of the Eurosensors XXIII conference ; Eurosensors 23 SP - 1487 EP - 1490 PB - Elsevier CY - Amsterdam ER - TY - JOUR A1 - Kirchner, Patrick A1 - Li, B. A1 - Spelthahn, H. A1 - Henkel, H. A1 - Friedrich, P. A1 - Kolstad, J. A1 - Keusgen, M. A1 - Schöning, Michael Josef T1 - Thin-film calorimetric H2O2 gas sensor for the validation of germicidal effectivity in aseptic filling processes JF - Procedia Chemistry. 1 (2009), H. 1 Y1 - 2009 SN - 1876-6196 N1 - Proceedings of the Eurosensors XXIII conference ; Eurosensors 23 SP - 983 EP - 986 ER - TY - JOUR A1 - Schöning, Michael Josef A1 - Turek, M. A1 - Heiden, W. A1 - Riesen, A. A1 - Chhabda, T. A. A1 - Schubert, J. A1 - Krüger, P. A1 - Keusgen, M. T1 - Artificial intelligence/fuzzy logic method for analysis of combined signals from heavy metal chemical sensors JF - Electrochimica Acta. 54 (2009), H. 25 Sp. Iss. SI Y1 - 2009 SN - 0013-4686 SP - 6082 EP - 6088 PB - Elsevier CY - New York ER - TY - JOUR A1 - Wagner, Torsten A1 - Werner, Frederik A1 - Miyamoto, Ko-Ichiro A1 - Schöning, Michael Josef A1 - Yoshinobu, Tatsuo T1 - A high-density multi-point LAPS set-up using a VCSEL array and FPGA control JF - Sensors and Actuators B: Chemical. 154 (2011), H. 2 Y1 - 2011 SN - 1873-3077 N1 - EUROSENSORS XXIII SP - 124 EP - 128 PB - Elsevier CY - Amsterdam ER - TY - JOUR A1 - Miyamoto, Ko-ichiro A1 - Wagner, Torsten A1 - Mimura, Shuhei A1 - Kanoh, Shiníchiro A1 - Yoshinobu, Tatsuo A1 - Schöning, Michael Josef T1 - Constant-phase-mode operation of the light-addressable potentiometric sensor JF - Sensors and Actuators B: Chemical. 154 (2011), H. 2 Y1 - 2011 SN - 1873-3077 N1 - EUROSENSORS XXIII SP - 119 EP - 123 PB - Elsevier CY - Amsterdam ER - TY - JOUR A1 - Miyamoto, Ko-ichiro A1 - Wagner, Torsten A1 - Yoshinobu, Tatsuo A1 - Kanoh, Shin`ichiro A1 - Schöning, Michael Josef T1 - Phase-mode LAPS and its application to chemical imaging JF - Sensors and Actuators B: Chemical. 154 (2011), H. 1 Y1 - 2011 SN - 1873-3077 SP - 28 EP - 32 PB - Elsevier CY - Amsterdam ER - TY - JOUR A1 - Miyamoto, Ko-ichiro A1 - Yoshida, Midori A1 - Sakai, Taito A1 - Matsuzaka, Atsushi A1 - Wagner, Torsten A1 - Kanoh, Sanoh A1 - Yoshinobu, Tatsuo A1 - Schöning, Michael Josef T1 - Differential setup of light-addressable potentiometric sensor with an enzyme reactor in a flow channel JF - Japanese Journal of Applied Physics. 50 (2011) Y1 - 2011 SN - 0021-4922 SP - 04DL08-1 EP - 04DL08-5 PB - Japan Society of Applied Physics CY - Bristol ER - TY - JOUR A1 - Gasparyan, F.V. A1 - Vitusevich, S.A. A1 - Offenhäusser, A. A1 - Schöning, Michael Josef T1 - Modified charge fluctuation noise model for electrolyte-insulator-semiconductor devices JF - Modern Physics Letters B (MPLB). 25 (2011), H. 11 Y1 - 2011 SN - 0217-9849 SP - 831 EP - 840 PB - World Scientific Publ. CY - Singapur ER - TY - JOUR A1 - Spelthahn, Heiko A1 - Schaffrath, Sophie A1 - Coppe, Thomas A1 - Rufi, Frederic A1 - Schöning, Michael Josef T1 - Development of an electrolyte-insulator-semiconductor (EIS) based capacitive heavy metal sensor for the detection of Pb2+ und Cd2+ ions JF - Physica status solidi (a) : applications and material science. 207 (2010), H. 4 Y1 - 2010 SN - 1862-6300 N1 - Special Issue: Engineering of Functional Interfaces EnFI 2009 SP - 930 EP - 934 ER - TY - JOUR A1 - Miyamoto, Ko-ichiro A1 - Wagner, Torsten A1 - Yoshinobu, Tatsuo A1 - Kanoh, Shin`ichiro A1 - Schöning, Michael Josef T1 - Phase-mode operation of FDM-LAPS JF - Sensor letters Y1 - 2011 SN - 1546-1971 VL - 9 IS - 2 SP - 691 EP - 694 PB - American Scientific Publishers CY - Stevenson Ranch, Calif. ER - TY - JOUR A1 - Malzahn, Kerstin A1 - Windmiller, Joshua Ray A1 - Valdés-Ramírez, Gabriela A1 - Wang, Joseph A1 - Schöning, Michael Josef T1 - Wearable electrochemical sensors for in situ analysis in marine environments JF - Analyst. 136 (2011), H. 14 Y1 - 2011 SN - 0003-2654 SP - 2912 EP - 2917 PB - Royal Society of Chemistry CY - Cambridge ER - TY - JOUR A1 - Kirchner, Patrick A1 - Spelthahn, H. A1 - Schöning, Michael Josef A1 - Henkel, H. A1 - Schneider, A. A1 - Friedrich, P. A1 - Kolstad, J. A1 - Berger, J. T1 - Realisierung eines Polyimid-basierten kalorimetrischen Gassensors zur Inline-Überwachung der H2O2-Konzentration in aseptischen Abfüllanlagen JF - Sensoren und Messsysteme 2010 [Elektronische Ressource] : Vorträge der 15. ITG/GMA-Fachtagung vom 18. bis 19. Mai 2010 in Nürnberg / Informationstechnische Gesellschaft im VDE (ITG); VDI/VDE-Gesellschaft Mess- und Automatisierungstechnik (GMA) Y1 - 2010 SN - 978-3-8007-3260-9 N1 - Fachtagung Sensoren und Messsysteme 15, 2010, Nürnberg ; Gesellschaft Mess- und Automatisierungstechnik SP - 607 EP - 612 PB - VDE Verlag CY - Berlin ER - TY - JOUR A1 - Werner, Frederik A1 - Spelthahn, H. A1 - Schöning, Michael Josef A1 - Krumbe, C. A1 - Wagner, Torsten A1 - Yoshinobu, T. A1 - Keusgen, M. T1 - Neue Ansteuerungselektronik für LAPS-basierte Biosensoren zur gleichzeitig ortsaufgelösten Messung der pH-Konzentration JF - Sensoren und Messsysteme 2010 [Elektronische Ressource] : Vorträge der 15. ITG/GMA-Fachtagung vom 18. bis 19. Mai 2010 in Nürnberg / Informationstechnische Gesellschaft im VDE (ITG); VDI/VDE-Gesellschaft Mess- und Automatisierungstechnik (GMA) Y1 - 2010 SN - 978-3-8007-3260-9 N1 - Fachtagung Sensoren und Messsysteme 15, 2010, Nürnberg ; Gesellschaft Mess- und Automatisierungstechnik SP - 109 EP - 114 PB - VDE Verlag CY - Berlin ER - TY - JOUR A1 - Wagner, Torsten A1 - Miyamoto, Ko-ichiro A1 - Schöning, Michael Josef A1 - Yoshinobu, Tatsuo T1 - Novel combination of digital light processing (DLP) and light-addressable potentiometric sensors (LAPS) for flexible chemical imaging JF - Procedia Engineering. 5 (2010) Y1 - 2010 SN - 1877-7058 N1 - Eurosensor XXIV Conference SP - 520 EP - 523 ER - TY - JOUR A1 - Kirchner, Patrick A1 - Oberländer, Jan A1 - Friedrich, Peter A1 - Rysstad, G. A1 - Berger, J. A1 - Keusgen, M. A1 - Schöning, Michael Josef T1 - Realization of a calorimetric gas sensor on polyimide foil for applications in aseptic food industry JF - Procedia Engineering. 5 (2010) Y1 - 2010 SN - 1877-7058 N1 - Eurosensor XXIV Conference SP - 264 EP - 267 ER - TY - JOUR A1 - Miyamoto, Ko-ichiro A1 - Kaneko, Kazumi A1 - Matsuo, Akira A1 - Wagner, Torsten A1 - Kanoh, Shin`ichiro A1 - Schöning, Michael Josef A1 - Yoshinobu, Tatsuo T1 - Miniaturized chemical imaging sensor system using an OLED display panel JF - Procedia Engineering. 5 (2010) Y1 - 2010 SN - 1877-7058 N1 - Eurosensor XXIV Conference SP - 516 EP - 519 ER - TY - JOUR A1 - Bohrn, U. A1 - Stütz, E. A1 - Fleischer, M. A1 - Schöning, Michael Josef T1 - Real-time detection of CO by eukaryotic cells JF - Procedia Engineering. 5 (2010) Y1 - 2010 SN - 1877-7058 N1 - Eurosensor XXIV Conference SP - 17 EP - 20 ER - TY - JOUR A1 - Reisert, Steffen A1 - Geissler, H. A1 - Florke, R. A1 - Wagner, P. A1 - Wagner, Torsten A1 - Schöning, Michael Josef T1 - Controlling aseptic sterilization processes by means of a multi-sensor system Y1 - 2011 N1 - 2011 IEEE Workshop on Merging Fields of Computational Intelligence and Sensor Technology ; 11.-15. April 2011 Paris, France SP - 18 EP - 22 PB - IEEE CY - New York ER - TY - JOUR A1 - Heiden, W. A1 - Turek, M. A1 - Schöning, Michael Josef T1 - TasteIT : Analyzing chemical sensor data using fuzzy logic Y1 - 2011 SN - 978-1-4244-9910-6 N1 - 2011 IEEE Workshop on Merging Fields of Computational Intelligence and Sensor Technology ; 11.-15. April 2011 Paris, France SP - 1 EP - 6 PB - IEEE CY - New York ER - TY - JOUR A1 - Heiden, W. A1 - Turek, M. A1 - Schöning, Michael Josef T1 - Analysis of chemical sensor data JF - Proceedings of the 4th Russian-German Workshop "Innovation Information Technologies: Theory and practice" : Ufa, Russia, April 8-13, 2011 / eds. Yupsova, Nafisa ... Y1 - 2011 SN - 978-5-4221-0159-7 SP - 76 EP - 81 PB - State Aviation Technical Univ. CY - Ufa ER - TY - JOUR A1 - Werner, Frederik A1 - Groebel, Simone A1 - Wagner, Torsten A1 - Yoshinobu, Tatsuo A1 - Selmer, Thorsten A1 - Baumann, Marcus A1 - Schöning, Michael Josef T1 - Überwachung der metabolischen Aktivität von Mikroorganismen zur Kontrolle des biologischen Prozesses im Biogasfermenter JF - Biogas 2011 : Energieträger der Zukunft ; 6. Fachtagung, Fachtagung Braunschweig, 08. und 09. Juni 2011 / VDI Energie und Umwelt Y1 - 2011 SN - 978-3-18-092121-1 N1 - Gesellschaft Energie und Umwelt ; Fachtagung Biogas ; (6 : ; 2011.06.08-09 : ; Braunschweig) ; VDI-Berichte ; 2121 SP - 285 EP - 286 PB - VDI-Verl. CY - Düsseldorf ER - TY - CHAP A1 - Reisert, Steffen A1 - Geissler, H. A1 - Flörke, R. A1 - Weiler, C. A1 - Wagner, P. A1 - Schöning, Michael Josef ED - Abdelghani, Adnane ED - Schöning, Michael Josef T1 - Characterisation of aseptic sterilisation processes using an electronic nose T2 - Nanoscale Science and Technology (NS&T´12) : Proceedings Book Humboldt Kolleg ; Tunisia, 17-19 March, 2012 Y1 - 2012 SP - 45 EP - 45 ER - TY - CHAP A1 - Yoshinobu, Tatsuo A1 - Miyamoto, Ko-Ichiro A1 - Wagner, Torsten A1 - Schöning, Michael Josef ED - Yamaguchi, Takami T1 - Miniaturized and high-speed chemical imaging systems T2 - Nano-Biomedical Engineering 2012. Proceedings of the Tohoku University Global Centre of Excellence Programme, Sakura Hall, Tohoku University, Sendai Japan, 5 – 6 March 2012 Y1 - 2012 U6 - https://doi.org/10.1142/9781848169067_0045 SP - 386 EP - 395 PB - World Scientific CY - Singapur ER - TY - JOUR A1 - Grinsven, Bart van A1 - Bon, Natalie vanden A1 - Strauven, Hannelore A1 - Grieten, Lars A1 - Murib, Mohammed A1 - Jiménez Monroy, Kathia L. A1 - Janssens, Stoffel D. A1 - Haenen, Ken A1 - Schöning, Michael Josef A1 - Vermeeren, Veronique A1 - Ameloot, Marcel A1 - Michiels, Luc A1 - Thoelen, Ronald A1 - Ceuninck, Ward de A1 - Wagner, Patrick T1 - Heat-Transfer Resistance at Solid-Liquid Interfaces: A Tool for The Detection of Single Nucleotide Polymorphisms in DNA. JF - ACS Nano N2 - In this article, we report on the heat-transfer resistance at interfaces as a novel, denaturation-based method to detect single-nucleotide polymorphisms in DNA. We observed that a molecular brush of double-stranded DNA grafted onto synthetic diamond surfaces does not notably affect the heat-transfer resistance at the solid-to-liquid interface. In contrast to this, molecular brushes of single-stranded DNA cause, surprisingly, a substantially higher heat-transfer resistance and behave like a thermally insulating layer. This effect can be utilized to identify ds-DNA melting temperatures via the switching from low- to high heat-transfer resistance. The melting temperatures identified with this method for different DNA duplexes (29 base pairs without and with built-in mutations) correlate nicely with data calculated by modeling. The method is fast, label-free (without the need for fluorescent or radioactive markers), allows for repetitive measurements, and can also be extended toward array formats. Reference measurements by confocal fluorescence microscopy and impedance spectroscopy confirm that the switching of heat-transfer resistance upon denaturation is indeed related to the thermal on-chip denaturation of DNA. Y1 - 2012 U6 - https://doi.org/10.1021/nn300147e SN - 1936-086X VL - 6 IS - 3 SP - 2712 EP - 2721 PB - ACS Publications CY - Washington, DC ER - TY - CHAP A1 - Bohrn, U. A1 - Stütz, E. A1 - Fleischer, M. A1 - Schöning, Michael Josef A1 - Wagner, P. ED - Abdelghani, Adnane ED - Schöning, Michael Josef T1 - Towards a paradigm change – mammalian cells as sensitive biosensor layers for the detection of unexpected toxic substances in air T2 - Nanoscale Science and Technology (NS&T´12) : Proceedings Book Humboldt Kolleg ; Tunisia, 17-19 March, 2012 Y1 - 2012 SP - 44 EP - 44 ER - TY - CHAP A1 - Schusser, Sebastian A1 - Vaeßen, Christiane A1 - Schöning, Michael Josef T1 - 5. Graduiertentagung der FH Aachen 15. November 2012 T1 - 5th Graduate Symposium FH Aachen - University of Applied Sciences November 15th, 2012 N2 - Tagungsband der 5. Graduiertentagung der FH Aachen am 15. November 2012 N2 - Proceedings from the 5th Graduate Symposium, FH Aachen, Germany, November 15th, 2012 T3 - Graduiertentagung / FH Aachen - 5 KW - Graduiertentagung Y1 - 2012 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:a96-opus-50425 ER - TY - JOUR A1 - Werner, Frederik A1 - Takenaga, Shoko A1 - Taki, Hidenori A1 - Sawada, Kazuaki A1 - Schöning, Michael Josef T1 - Comparison of label-free ACh-imaging sensors based on CCD and LAPS JF - Sensors and Actuators B: Chemical (2012) N2 - Semiconductor-based chemical imaging sensors, like the light-addressable potentiometric sensor (LAPS) or the pH-imaging sensor based on a charge-coupled device (CCD), are becoming a powerful tool for label-free imaging of biological phenomena. We have proposed a polyion-based enzymatic membrane to develop an acetylcholine (ACh) imaging sensor for neural cell-activity observations. In this study, a CCD-type ACh-imaging sensor and a LAPS-type ACh-imaging sensor were fabricated and the prospect of both sensors was clarified by making a comparison of their basic characteristics. Y1 - 2013 SN - 0925-4005 VL - 177 SP - 745 EP - 752 PB - Elsevier CY - Amsterdam ER - TY - JOUR A1 - Kirchner, Patrick A1 - Oberländer, Jan A1 - Suco, Henri-Pierre A1 - Rysstad, Gunnar A1 - Schöning, Michael Josef T1 - Monitoring the microbicidal effectiveness of gaseous hydrogen peroxide in sterilisation processes by means of a calorimetric gas sensor JF - Food control N2 - In the present work, a novel method for monitoring sterilisation processes with gaseous H2O2 in combination with heat activation by means of a specially designed calorimetric gas sensor was evaluated. Therefore, the sterilisation process was extensively studied by using test specimens inoculated with Bacillus atrophaeus spores in order to identify the most influencing process factors on its microbicidal effectiveness. Besides the contact time of the test specimens with gaseous H2O2 varied between 0.2 and 0.5 s, the present H2O2 concentration in a range from 0 to 8% v/v (volume percent) had a strong influence on the microbicidal effectiveness, whereas the change of the vaporiser temperature, gas flow and humidity were almost negligible. Furthermore, a calorimetric H2O2 gas sensor was characterised in the sterilisation process with gaseous H2O2 in a wide range of parameter settings, wherein the measurement signal has shown a linear response against the H2O2 concentration with a sensitivity of 4.75 °C/(% v/v). In a final step, a correlation model by matching the measurement signal of the gas sensor with the microbial inactivation kinetics was established that demonstrates its suitability as an efficient method for validating the microbicidal effectiveness of sterilisation processes with gaseous H2O2. KW - hydrogen peroxide KW - sterilisation KW - Bacillus atrophaeus KW - calorimetric gas sensor Y1 - 2012 U6 - https://doi.org/10.1016/j.foodcont.2012.11.048 SN - 0956-7135 VL - 31 IS - 2 SP - 530 EP - 538 PB - Elsevier CY - Amsterdam ER - TY - JOUR A1 - Kloock, Joachim P. A1 - Moreno, Lia A1 - Bratov, A. A1 - Huachupoma, S. A1 - Xu, J. A1 - Wagner, Torsten A1 - Yoshinobu, T. A1 - Ermolenko, Y. A1 - Vlasov, Y. G. A1 - Schöning, Michael Josef T1 - PLD-prepared cadmium sensors based on chalcogenide glasses —ISFET, LAPS and μISE semiconductor structures JF - Sensors and Actuators B: Chemical. 118 (2006), H. 1-2 Y1 - 2006 SN - 0925-4005 N1 - Eurosensors XIX - Eurosensors XIX - The 19th European Conference on Solid-State Transducers SP - 149 EP - 155 ER - TY - JOUR A1 - Wagner, Torsten A1 - Rao, C. A1 - Kloock, Joachim P. A1 - Yoshinobu, T. A1 - Otto, R. A1 - Keusgen, M. A1 - Schöning, Michael Josef T1 - “LAPS Card”—A novel chip card-based light-addressable potentiometric sensor (LAPS) JF - Sensors and Actuators B: Chemical. 118 (2006), H. 1-2 Y1 - 2006 SN - 0925-4005 N1 - Eurosensors XIX - Eurosensors XIX - The 19th European Conference on Solid-State Transducers SP - 33 EP - 40 ER - TY - JOUR A1 - Arida, Hassan A1 - Turek, Monika A1 - Rolka, David A1 - Schöning, Michael Josef T1 - A Novel Thin-Film Copper Array Based on an Organic/Inorganic Sensor Hybrid: Microfabrication, Potentiometric Characterization, and Flow-Injection Analysis Application JF - Electroanalysis. 21 (2009), H. 10 Y1 - 2009 SN - 1040-0397 SP - 1145 EP - 1151 PB - Wiley CY - Weinheim ER - TY - JOUR A1 - Miyamoto, K. A1 - Kuwabara, Yohei A1 - Kanoh, Shin'ichiro A1 - Yoshinobu, Tatsuo A1 - Wagner, Torsten A1 - Schöning, Michael Josef T1 - Chemical image scanner based on FDM-LAPS JF - Sensors and Actuators B: Chemical. 137 (2009), H. 2 Y1 - 2009 SN - 0925-4005 SP - 533 EP - 538 PB - Elsevier CY - Amsterdam ER - TY - JOUR A1 - Arida, Hassan A1 - Mohsen, Q. A1 - Schöning, Michael Josef T1 - Microfabrication, characterization and analytical application of a new thin-film silver microsensor JF - Electrochimica Acta. 54 (2009), H. 13 Y1 - 2009 SN - 0013-4686 SP - 3543 EP - 3547 ER - TY - JOUR A1 - Schöning, Michael Josef A1 - Doll, Theodor A1 - Wagner, Patrick T1 - Preface / Doll, Theodor ; Wagner, Patrick ; Schöning, Michael J. JF - physica status solidi (a) . 206 (2009), H. 3 Y1 - 2009 SN - 1862-6319 N1 - Special Issue: Engineering of Functional Interfaces (EnFI 08) SP - 389 EP - 390 ER - TY - JOUR A1 - Moreno i Codinachs, L. A1 - Birkenstock, C. A1 - Garma, T. A1 - Zierold, R. A1 - Bachmann, J. A1 - Nielsch, K. A1 - Schöning, Michael Josef A1 - Fontcuberta i Morral, A. T1 - A micron-sized nanoporous multifunction sensing device JF - physica status solidi (a) . 206 (2009), H. 3 Y1 - 2009 SN - 1862-6319 N1 - Special Issue: Engineering of Functional Interfaces (EnFI 08) SP - 435 EP - 441 PB - Wiley CY - Weinheim ER - TY - JOUR A1 - Näther, Niko A1 - Henkel, Hartmut A1 - Schneider, Andreas A1 - Schöning, Michael Josef T1 - Investigation of different catalytically active and passive materials for realising a hydrogen peroxide gas sensor JF - physica status solidi (a) . 206 (2009), H. 3 Y1 - 2009 SN - 1862-6319 N1 - Special Issue: Engineering of Functional Interfaces (EnFI 08) SP - 449 EP - 454 PB - Wiley CY - Weinheim ER - TY - JOUR A1 - Wagner, Torsten A1 - Miyamoto, K. A1 - Werner, Frederik A1 - Schöning, Michael Josef A1 - Yoshinobu, T. T1 - Flexible electrochemical imaging with “zoom-in” functionality by using a new type of light-addressable potentiometric sensor Y1 - 2011 N1 - 2011 16th International Solid-State Sensors, Actuators and Microsystems Conference (TRANSDUCERS) , Date: 5-9 June 2011 SP - 2133 EP - 2135 PB - IEEE CY - New York ER - TY - JOUR A1 - Miyamoto, K. A1 - Wagner, Torsten A1 - Schöning, Michael Josef A1 - Yoshinobu, T. T1 - Multi-well structure for cell culture on the chemical imaging sensor Y1 - 2011 N1 - 2011 16th International Solid-State Sensors, Actuators and Microsystems Conference (TRANSDUCERS) , Date: 5-9 June 2011 SP - 2130 EP - 2132 PB - IEEE CY - New York ER - TY - JOUR A1 - Spelthahn, Heiko A1 - Kirsanov, Dmitry A1 - Legin, Andrey A1 - Osterrath, Thomas A1 - Schubert, Jürgen A1 - Zander, Willi A1 - Schöning, Michael Josef T1 - Development of a thin-film sensor array for analytical monitoring of heavy metals in aqueous solutions JF - Physica Status Solidi (a) N2 - In industrial processes there is a variety of heavy metals (e.g., copper, zinc, cadmium, and lead) in use for wires, coatings, paints, alloys, batteries, etc. Since the application of these transition metals for industry is inevitable, it is a vital task to develop proper analytical techniques for their monitoring at low activity levels, especially because most of these elements are acutely toxic for biological organisms. The determination of ions in solution by means of a simple and inexpensive sensor array is, therefore, a promising task. In this work, a sensor array with heavy metal-sensitive chalcogenide glass membranes for the simultaneous detection of the four ions Ag⁺, Cu2⁺, Cd2⁺, and Pb2⁺ in solution is realized. The results of the physical characterization by means of microscopy, profilometry, Rutherford backscattering spectroscopy (RBS), and scanning electron microscopy (SEM) as well as the electrochemical characterization by means of potentiometric measurements are presented. Additionally, the possibility to expand the sensor array by polymeric sensor membranes is discussed. Y1 - 2012 SN - 1862-6319 U6 - https://doi.org/10.1002/pssa.201100733 VL - 209 IS - 5 SP - 885 EP - 891 PB - Wiley-VCH CY - Weinheim ER - TY - JOUR A1 - Spelthahn, Heiko A1 - Schubert, Jürgen A1 - Schöning, Michael Josef T1 - Dünnschichtsensoren für die Schwermetallanalytik 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 SN - 0016-3538 VL - 56 IS - 4 SP - 285 EP - 287 PB - Wiley-VCH CY - Weinheim ER - TY - JOUR A1 - Bohrn, U. A1 - Stütz, E. A1 - Fuchs, K. A1 - Fleischer, M. A1 - Schöning, Michael Josef A1 - Wagner, P. T1 - Monitoring of irritant gas using a whole-cell-based sensor system JF - Sensors and Actuators B: Chemical N2 - Cell-based sensors for the detection of gases have long been underrepresented, due to the cellular requirement of being cultured in a liquid environment. In this work we established a cell-based gas biosensor for the detection of toxic substances in air, by adapting a commercial sensor chip (Bionas®), previously used for the measurement of pollutants in liquids. Cells of the respiratory tract (A549, RPMI 2650, V79), which survive at a gas phase in a natural context, are used as biological receptors. The physiological cell parameters acidification, respiration and morphology are continuously monitored in parallel. Ammonia was used as a highly water-soluble model gas to test the feasibility of the sensor system. Infrared measurements confirmed the sufficiency of the medium draining method. This sensor system provides a basis for many sensor applications such as environmental monitoring, building technology and public security. Y1 - 2012 U6 - https://doi.org/10.1016/j.snb.2012.05.088 SN - 0925-4005 VL - 175 SP - 208 EP - 217 PB - Elsevier CY - Amsterdam ER - TY - JOUR A1 - Werner, Frederik A1 - Groebel, Simone A1 - Krumbe, Christoph A1 - Wagner, Torsten A1 - Selmer, Thorsten A1 - Yoshinobu, Tatsuo A1 - Baumann, Marcus A1 - Schöning, Michael Josef T1 - Nutrient concentration-sensitive microorganism-based biosensor JF - Physica Status Solidi (a) Y1 - 2012 U6 - https://doi.org/10.1002/pssa.201100801 SN - 1862-6319 VL - 209 IS - 5 SP - 900 EP - 904 PB - Wiley-VCH CY - Weinheim ER - TY - JOUR A1 - Näther, Niko A1 - Emmerich, Rüdiger A1 - Berger, Jörg A1 - Friedrich, Peter A1 - Henkel, Hartmut A1 - Schneider, Andreas A1 - Schöning, Michael Josef T1 - A novel gas-phase hydrogen peroxide sensor basing on a combined physical/chemical transduction mechanism JF - Nanofunctional materials, nanostructures, and novel devices for biological and chemical detection : November 27 - December 1, 2006, Boston, Massachusetts, USA ; [at the 2006 MRS Fall Meeting]. Y1 - 2006 SN - 978-1-60423-407-7 N1 - Materials Research Society symposium proceedings ; 951 ; MRS fall meeting ; (2006.11.27-12.01 : ; Boston, Mass.) SP - 63 EP - 68 PB - Materials Research Soc. CY - Warrendale, Pa. ER - TY - JOUR A1 - Näther, Niko A1 - Berger, Jörg A1 - Emmerich, Rüdiger A1 - Friedrich, P. A1 - Henkel, H. A1 - Schöning, Michael Josef T1 - H2O2-Konzentrationsbestimmung für die Prozessgasanalytik mittels eines kalorimetrischen Sensoraufbaus JF - Sensoren und Messsysteme 2008 : 14. Fachtagung Ludwigsburg, 11. und 12. März 2008 / VDI/VDE-Gesellschaft Mess- und Automatisierungstechnik Y1 - 2008 SN - 978-3-18-092011-5 N1 - VDI-Berichte ; 2011 ; Sensoren und Messsysteme 2008, 14. GMA/ITG-Fachtagung, VDI/VDE- Gesellschaft Mess- und Automatisierungstechnik, + CD-ROM, Ludwigsburg, DE, 11.-12. Mar, 2008 SP - 783 EP - 792 PB - VDI-Verl. CY - Düsseldorf ER - TY - JOUR A1 - Näther, Niko A1 - Berger, Jörg A1 - Emmerich, Rüdiger A1 - Friedrich, Peter A1 - Henkel, Hartmut A1 - Schneider, Andreas A1 - Schöning, Michael Josef T1 - Entwicklung einer kalorimetrischen H2O2-Gassensoranordnung für die Prozessgaskontrolle JF - 8. Dresdner Sensor-Symposium : Sensoren für Umwelt, Klima und Sicherheit, Biosensoren und Biosysteme, Sensoren und Sensorsysteme für die Prozesstechnik, Trends in der Sensortechnik, Materialentwicklung für die Sensorik; 8. Dresdner Sensor-Symposium, 10. - 12. Dezember 2007, Dresden / Gerald Gerlach ... (Hg.) Y1 - 2007 SN - 978-3-940046-45-1 N1 - Dresdner Beiträge zur Sensorik ; 29 SP - 261 EP - 264 PB - TUDpress, Verl. der Wissenschaften CY - Dresden ER - TY - JOUR A1 - Schöning, Michael Josef A1 - Schütz, S. T1 - Der Käfer/Chip-Sensor als bioelektronischer “Schnüffler” JF - Bioanalytik für Einsteiger : [Diabetes, Drogen und DNA] / Reinhard Renneberg. Darja Süßbier (Ill.). [Red.: Andreas Held ...] Y1 - 2009 SN - 978-3-8274-1831-9 SP - 204 EP - 205 PB - Spektrum, Akad. Verl. CY - Heidelberg ER - TY - JOUR A1 - Moreno i Codinachs, Lia A1 - Kloock, Joachim P. A1 - Schöning, Michael Josef A1 - Baldi, Antoni A1 - Ipatov, Andrey A1 - Bratov, Andrey A1 - Jimenez-Jorquera, Cecilia T1 - Electronic integrated multisensor tongue applied to grape juice and wine analysis JF - Analyst. 133 (2008) Y1 - 2008 SN - 1364-5528 SP - 1440 EP - 1448 ER - TY - JOUR A1 - Itabashi, Akinori A1 - Kosaka, Naoki A1 - Miyamoto, Ko-ichiro A1 - Wagner, Torsten A1 - Schöning, Michael Josef T1 - High-speed chemical imaging system based on front-side-illuminated LAPS JF - Sensors and actuators B: Chemical N2 - The chemical imaging sensor is a semiconductor-based chemical sensor that can visualize the spatial distribution of specific ions on the sensing surface. The conventional chemical imaging system based on the light-addressable potentiometric sensor (LAPS), however, required a long time to obtain a chemical image, due to the slow mechanical scan of a single light beam. For high-speed imaging, a plurality of light beams modulated at different frequencies can be employed to measure the ion concentrations simultaneously at different locations on the sensor plate by frequency division multiplex (FDM). However, the conventional measurement geometry of back-side illumination limited the bandwidth of the modulation frequency required for FDM measurement, because of the low-pass filtering characteristics of carrier diffusion in the Si substrate. In this study, a high-speed chemical imaging system based on front-side-illuminated LAPS was developed, which achieved high-speed spatiotemporal recording of pH change at a rate of 70 frames per second. Y1 - 2013 U6 - https://doi.org/10.1016/j.snb.2013.03.016 SN - 1873-3077 VL - 182 SP - 315 EP - 321 PB - Elsevier CY - Amsterdam ER - TY - JOUR A1 - Bandodkar, Amay J. A1 - Molinnus, Denise A1 - Mirza, Omar A1 - Guinovart, Tomas A1 - Windmiller, Joshua R. A1 - Valdes-Ramirez, Gabriela A1 - Andrade, Francisco J. A1 - Schöning, Michael Josef A1 - Wang, Joseph T1 - Epidermal tattoo potentiometric sodium sensors with wireless signal transduction for continuous non-invasive sweat monitoring JF - Biosensors and bioelectronics N2 - This article describes the fabrication, characterization and application of an epidermal temporary-transfer tattoo-based potentiometric sensor, coupled with a miniaturized wearable wireless transceiver, for real-time monitoring of sodium in the human perspiration. Sodium excreted during perspiration is an excellent marker for electrolyte imbalance and provides valuable information regarding an individual's physical and mental wellbeing. The realization of the new skin-worn non-invasive tattoo-like sensing device has been realized by amalgamating several state-of-the-art thick film, laser printing, solid-state potentiometry, fluidics and wireless technologies. The resulting tattoo-based potentiometric sodium sensor displays a rapid near-Nernstian response with negligible carryover effects, and good resiliency against various mechanical deformations experienced by the human epidermis. On-body testing of the tattoo sensor coupled to a wireless transceiver during exercise activity demonstrated its ability to continuously monitor sweat sodium dynamics. The real-time sweat sodium concentration was transmitted wirelessly via a body-worn transceiver from the sodium tattoo sensor to a notebook while the subjects perspired on a stationary cycle. The favorable analytical performance along with the wearable nature of the wireless transceiver makes the new epidermal potentiometric sensing system attractive for continuous monitoring the sodium dynamics in human perspiration during diverse activities relevant to the healthcare, fitness, military, healthcare and skin-care domains. Y1 - 2014 U6 - https://doi.org/10.1016/j.bios.2013.11.039 SN - 1873-4235 (E-Journal); 0956-5663 (Print) VL - 54 SP - 603 EP - 609 PB - Elsevier CY - Amsterdam ER - TY - JOUR A1 - Reisert, Steffen A1 - Geissler, Hanno A1 - Flörke, Rudolf A1 - Weiler, Christian A1 - Wagner, Patrick A1 - Schöning, Michael Josef T1 - Characterisation of aseptic sterilisation processes using an electronic nose JF - International journal of nanotechnology Y1 - 2013 SN - 1475-7435 (Print) 7141-8151 (Online) VL - Vol. 10 IS - No. 5-7 SP - 470 EP - 484 PB - Inderscience Enterprises CY - Genève ER - TY - JOUR A1 - Miyamoto, Ko-ichiro A1 - Hirayama, Yuji A1 - Wagner, Torsten A1 - Schöning, Michael Josef A1 - Yoshinobu, Tatsuo T1 - Visualization of enzymatic reaction in a microfluidic channel using chemical imaging sensor JF - Electrochimica acta Y1 - 2013 SN - 1873-3859 (E-Journal); 0013-4686 (Print) SP - Publ. online PB - Elsevier CY - Amsterdam ER - TY - GEN A1 - Ingebrandt, Sven A1 - Wagner, Patrick A1 - Schöning, Michael Josef T1 - Engineering of functional interfaces / guest eds. Sven Ingebrandt ; Patrick Wagner ; Michael J. Schöning T2 - Physica Status Solidi (A) Y1 - 2013 SN - 1521-396X (E-Journal); 1862-6319 (E-Journal); 0031-8965 (Print); 1862-6300 (Print) VL - Vol. 210 IS - Iss. 5 SP - 845 ER - TY - GEN A1 - Abdelghani, Adnane A1 - Menaa, Bouzid A1 - Obare, Sherine O. A1 - Schöning, Michael Josef T1 - Special issue on nanoscale science and technology / guest eds.: Adnane Abdelghani, Bouzid Menaa, Sherine O. Obare, Michael J. Schöning T2 - International journal of nanotechnology Y1 - 2013 SN - 1741-8151 (E-Journal), 1475-7435 (Print) VL - Vol. 10 IS - No. 5-7 SP - 373 EP - 619 ER - TY - CHAP A1 - Takenaga, Shoko A1 - Herrera, Cony F. A1 - Werner, Frederik A1 - Biselli, Manfred A1 - Schnitzler, Thomas A1 - Schöning, Michael Josef A1 - Öhlschläger, Peter A1 - Wagner, Torsten T1 - Detection of the metabolic activity of cells by differential measurements based on a single light-addressable potentiometric sensor chip T2 - 11. Dresdner Sensor-Symposium : 9.-11.12.2013 Y1 - 2013 SN - 978-3-9813484-5-3 SP - 63 EP - 67 ER - TY - CHAP A1 - Oberländer, Jan A1 - Reisert, Steffen A1 - Kirchner, Patrick A1 - Wagner, Patrick A1 - Schöning, Michael Josef T1 - Kalorimetrische Gassensoren zur H2O2-Detektion in aseptischen Sterilisationsprozessen T2 - 11. Dresdner Sensor-Symposium : 9.-11.12.2013 Y1 - 2013 SN - 978-3-9813484-5-3 SP - 234 EP - 238 ER - TY - JOUR A1 - Takenaga, Shoko A1 - Biselli, Manfred A1 - Schnitzler, Thomas A1 - Öhlschläger, Peter A1 - Wagner, Torsten A1 - Schöning, Michael Josef T1 - Toward multi-analyte bioarray sensors: LAPS-based on-chip determination of a Michaelis–Menten-like kinetics for cell culturing JF - Physica status solidi A : Applications and materials science N2 - The metabolic activity of Chinese hamster ovary (CHO) cells was observed using a light-addressable potentiometric sensor (LAPS). The dependency toward different glucose concentrations (17–200 mM) follows a Michaelis–Menten kinetics trajectory with Kₘ = 32.8 mM, and the obtained Kₘ value in this experiment was compared with that found in literature. In addition, the pH shift induced by glucose metabolism of tumor cells transfected with the HPV-16 genome (C3 cells) was successfully observed. These results indicate the possibility to determine the tumor cells metabolism with a LAPS-based measurement device. Y1 - 2014 U6 - https://doi.org/10.1002/pssa.201330464 SN - 1521-396X (E); 1862-6319 (E-Journal); 0031-8965 (Print); 1862-6300 (Print) VL - 211 IS - 6 SP - 1410 EP - 1415 PB - Wiley-VCH CY - Weinheim ER - TY - JOUR A1 - Oberländer, Jan A1 - Kirchner, Patrick A1 - Boyen, Hans-Gerd A1 - Schöning, Michael Josef T1 - Detection of hydrogen peroxide vapor by use of manganese(IV) oxide as catalyst for calorimetric gas sensors JF - Physica status solidi A: Applications and materials science N2 - In this work, the catalyst manganese(IV) oxide (MnO2), of calorimetric gas sensors (to monitor the sterilization agent vaporized hydrogen peroxide) has been investigated in more detail. Chemical analyses by means of X-ray-induced photoelectron spectroscopy have been performed to unravel the surface chemistry prior and after exposure to hydrogen peroxide vapor at elevated temperature, as applied in the sterilization processes of beverage cartons. The surface characterization reveals a change in oxidation states of the metal oxide catalyst after exposure to hydrogen peroxide. Additionally, a cleaning effect of the catalyst, which itself is attached to the sensor surface by means of a polymer interlayer, could be observed. Y1 - 2014 U6 - https://doi.org/10.1002/pssa.201330359 SN - 1521-396X (E-Journal); 1862-6319 (E-Journal); 0031-8965 (Print); 1862-6300 (Print) VL - 211 IS - 6 SP - 1372 EP - 1376 PB - Wiley-VCH CY - Weinheim ER - TY - JOUR A1 - Guo, Yuanyuan A1 - Miyamoto, Ko-ichiro A1 - Wagner, Torsten A1 - Schöning, Michael Josef A1 - Yoshinobu, Tatsuo T1 - Theoretical study and simulation of light-addressable potentiometric sensors JF - Physica status solidi (A) : applications and materials N2 - The light-addressable potentiometric sensor (LAPS) is a semiconductor-based potentiometric sensor using a light probe with an ability of detecting the concentration of biochemical species in a spatially resolved manner. As an important biomedical sensor, research has been conducted to improve its performance, for instance, to realize high-speed measurement. In this work, the idea of facilitating the device-level simulation, instead of using an equivalent-circuit model, is presented for detailed analysis and optimization of the performance of the LAPS. Both carrier distribution and photocurrent response have been simulated to provide new insight into both amplitude-mode and phase-mode operations of the LAPS. Various device parameters can be examined to effectively design and optimize the LAPS structures and setups for enhanced performance. Y1 - 2014 U6 - https://doi.org/10.1002/pssa.201330354 SN - 0031-8965 VL - 211 IS - 6 SP - 1467 EP - 1472 PB - Wiley-VCH CY - Weinheim ER - TY - JOUR A1 - Riedel, Marc A1 - Kartchemnik, Julia A1 - Schöning, Michael Josef A1 - Lisdat, Fred T1 - Impedimetric DNA detection – steps forward to sensorial application JF - Analytical chemistry N2 - This study describes a label-free impedimetric sensor based on short ssDNA recognition elements for the detection of hybridization events. We concentrate on the elucidation of the influence of target length and recognition sequence position on the sensorial performance. The impedimetric measurements are performed in the presence of the redox system ferri-/ferrocyanide and show an increase in charge transfer resistance upon hybridization of ssDNA to the sensor surface. Investigations on the impedimetric signal stability demonstrate a clear influence of the buffers used during the sensor preparation and the choice of the passivating mercaptoalcanol compound. A stable sensor system has been developed, enabling a reproducible detection of 25mer target DNA in the low nanomolar range. After hybridization, a sensor regeneration can be reached with deionized water by adjustment of effective convection conditions, ensuring a sensor reusability. By investigations of longer targets with overhangs exposed to the solution, we can demonstrate applicability of the impedimetric detection for longer ssDNA. However, a decreasing charge transfer resistance change (ΔRct) is found by extending the overhang. As a strategy to increase the impedance change for longer target strands, the position of the recognition sequence can be designed in a way that a small overhang is exposed to the electrode surface. This is found to result in an increase in the relative Rct change. These results suggest that DNA and consequently negative charge near the electrode possess a larger impact on the impedimetric signal than DNA further away. Y1 - 2014 U6 - https://doi.org/10.1021/ac501800q SN - 1520-6882 (E-Journal); 0003-2700 (Print); 0096-4484 (Print) VL - 86 (2014) IS - 15 SP - 7867 EP - 7874 PB - ACS Publications CY - Columbus ER - TY - RPRT A1 - Schöning, Michael Josef A1 - Selmer, Thorsten A1 - Baumann, Marcus T1 - Schlussbericht zum Projekt "Bio-LAPS" : Optimierung des Betriebs eines Biogasfermenters mit Hilfe eines Feldeffekt-Biosensors auf Basis eines lichtadressierbaren potentiometrischen Sensors (LAPS) : Laufzeit: 01.09.2008 bis 31.01.2012 : Förderkennzeichen 07NR264 bzw.22026407 Y1 - 2012 PB - BMELV CY - Berlin ER - TY - JOUR A1 - Guo, Yuanyuan A1 - Seki, Kosuke A1 - Miyamoto, Ko-ichiro A1 - Wagner, Torsten A1 - Schöning, Michael Josef A1 - Yoshinobu, Tatsuo T1 - Novel photoexcitation method for light-addressable potentiometric sensor with higher spatial resolution JF - Applied physics express : APEX N2 - A novel photoexcitation method for the light-addressable potentiometric sensor (LAPS) is proposed to achieve a higher spatial resolution of chemical images. The proposed method employs a combined light source that consists of a modulated light probe, which generates the alternating photocurrent signal, and a ring of constant illumination surrounding it. The constant illumination generates a sheath of carriers with increased concentration which suppresses the spread of photocarriers by enhanced recombination. A device simulation was carried out to verify the effect of constant illumination on the spatial resolution, which demonstrated that a higher spatial resolution can be obtained. Y1 - 2014 U6 - https://doi.org/10.7567/APEX.7.067301 SN - 1882-0786 (E-Journa); 1882-0778 (Print) VL - 7 IS - 6 SP - 067301-4 PB - IOP CY - Bristol ER - TY - JOUR A1 - Wagner, Patrick A1 - Doll, Theodor A1 - Schöning, Michael Josef T1 - Engineering of functional interfaces / Patrick Wagner ; Theodor Doll ; Michael J. Schöning (eds.) JF - Physica status solidi (A) : Applications and materials science Y1 - 2014 U6 - https://doi.org/10.1002/pssa.201470241 SN - 1521-396X (E-Book); 1862-6319 (E-Book); 0031-8965 (Print); 1862-6300 (Print) VL - 211 IS - 6 SP - 1339 EP - 1339 PB - Wiley-VCH 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 - https://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 - 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 - https://doi.org/10.1002/pssa.201431944 SN - 1862-6319 VL - 212 IS - 6 SP - 1368 EP - 1374 PB - Wiley CY - Weinheim ER - TY - JOUR A1 - Dantism, S. A1 - Takenaga, S. A1 - Wagner, P. A1 - Wagner, Torsten A1 - Schöning, Michael Josef T1 - Light-addressable Potentiometric Sensor (LAPS) Combined with Multi-chamber Structures to Investigate the Metabolic Activity of Cells JF - Procedia Engineering N2 - LAPS are field-effect-based potentiometric sensors which are able to monitor analyte concentrations in a spatially resolved manner. Hence, a LAPS sensor system is a powerful device to record chemical imaging of the concentration of chemical species in an aqueous solution, chemical reactions, or the growth of cell colonies on the sensor surface, to record chemical images. In this work, multi-chamber 3D-printed structures made out of polymer (PP-ABS) were combined with LAPS chips to analyse differentially and simultaneously the metabolic activity of Escherichia coli K12 and Chinese hamster ovary (CHO) cells, and the responds of those cells to the addition of glucose solution. Y1 - 2015 U6 - https://doi.org/10.1016/j.proeng.2015.08.647 SN - 1877-7058 N1 - Part of special issue "Eurosensors 2015" VL - 120 SP - 384 EP - 387 PB - Elsevier CY - Amsterdam ER - TY - JOUR A1 - Pilas, Johanna A1 - Mariano, K. A1 - Keusgen, M. A1 - Selmer, Thorsten A1 - Schöning, Michael Josef T1 - Optimization of an Enzyme-based Multi-parameter Biosensor for Monitoring Biogas Processes JF - Procedia Engineering Y1 - 2015 U6 - https://doi.org/10.1016/j.proeng.2015.08.702 SN - 1877-7058 N1 - Part of special issue "Eurosensors 2015" VL - 120 SP - 532 EP - 535 PB - Elsevier CY - Amsterdam ER -