TY - JOUR A1 - Schäfer, Horst A1 - Worschech, L. A1 - Ossau, W. A1 - Fischer, C. T1 - Characterization of structural defects in MBE grown ZnSe JF - Materials Science and Engineering B. 43 (1997), H. 1-3 Y1 - 1997 SN - 0921-5107 N1 - Beitrag zum EMRS - Spring Meeting, 4.-7.06.1996 Strasbourg SP - 29 EP - 32 ER - TY - JOUR A1 - Hillen, Walter T1 - Charge asymmetry and weak interaction effects in e+e−→μ+μ− and e+e−→τ+τ− . TASSO Collaboration JF - Physics Letters B. 110 (1982), H. 2 Y1 - 1982 SN - 0370-2693 SP - 173 EP - 180 ER - TY - JOUR A1 - Hillen, Walter T1 - Charged pion production in e--e+ annihilation at 14, 22 and 34 GeV c.m. energies. TASSO Collaboration JF - Physics Letters B. 113 (1982), H. 1 Y1 - 1982 SN - 0370-2693 SP - 98 EP - 104 ER - TY - JOUR A1 - Hillen, Walter T1 - Charged pion, kaon, proton and antiproton production in high energy e+e− annihilations. TASSO Collaboration JF - Physics Letters B. 94 (1980), H. 3 Y1 - 1980 SN - 0370-2693 SP - 444 EP - 449 ER - TY - JOUR A1 - Poghossian, Arshak A1 - Schöning, Michael Josef T1 - Chemical and biological field-effect sensors for liquids – a status report JF - Handbook of biosensors and biochips / ed. Robert S. Marks ... Bd. 1 Y1 - 2007 SN - 978-0-470-01905-4 SP - 395 EP - 412 PB - Wiley CY - Chichester 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 - 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 - http://dx.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 - 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 - http://dx.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 - Yoshinobu, T. A1 - Ecken, H. A1 - Ismail, Md.A.B. A1 - Iwasaki, H. A1 - Lüth, H. A1 - Schöning, Michael Josef T1 - Chemical imaging sensor and its application to biological systems JF - Scaling down in electrochemistry : electrochemical micro- and nanosystem technology ; proceedings of the 3rd International Symposium on Electrochemical Microsystem Technologies, Garmisch-Patenkirchen, Germany, 11 - 15 September 2000 / ed. by J. W. Schultz Y1 - 2001 SN - 0-08-044014-2 SP - 259 EP - 263 PB - Elsevier [u.a.] CY - Amsterdam [u.a.] ER - TY - JOUR A1 - Schöning, Michael Josef A1 - Hoffmann, W. A1 - Bruns, M. A1 - Ache, H.J. (u.a.) T1 - Chemical microsensors and evaporated silver halide layers JF - Bulgarian Chemical Communications. 26 (1993), H. 3-4 Y1 - 1993 SN - 0324-1130 SP - 402 EP - 410 ER - TY - JOUR A1 - Schöning, Michael Josef A1 - Thust, M. A1 - Kordos, P. A1 - Lüth, H. T1 - Chemical sensing structures - From EIS capacitors to array-type sensors JF - Solid state chemical and biochemical sensors : proceedings of Topical Symposium 9 - "Solid State Chemical and Biochemical Sensors" of the Forum on New Materials of the 9th CIMTEC-World Ceramics Congress and Forum on New Materials Florence, Italy June 14-1 Y1 - 1999 SN - 88-86538-27-8 N1 - Serie Advances in science and technology ; 26 SP - 55 EP - 62 PB - Techna CY - Faenza ER - TY - JOUR A1 - Poghossian, Arshak A1 - Berndsen, L. A1 - Schöning, Michael Josef T1 - Chemical sensor as a physical sensor: ISFET-based flowvelocity, flow-direction and diffusion-coefficient sensor JF - Book of abstracts / ed. by J. Saneistr. Y1 - 2002 SN - 80-01-02576-4 N1 - Eurosensors ; (16, 2002, Praha) SP - 649 EP - 652 PB - Czech Technical University, Faculty of Electrical Engineering, Department of Measurement CY - Prague ER - TY - JOUR A1 - Poghossian, Arshak A1 - Berndsen, Lars A1 - Schöning, Michael Josef T1 - Chemical sensor as physical sensor: ISFET-based flowvelocity, flow-direction and diffusion-coefficient sensor JF - Sensors and Actuators B. 95 (2003), H. 1-3 Y1 - 2003 SN - 0925-4005 SP - 384 EP - 390 ER - TY - JOUR A1 - Huck, Christina A1 - Poghossian, Arshak A1 - Bäcker, Matthias A1 - Reisert, Steffen A1 - Schubert, J. A1 - Zander, W. A1 - Begoyan, V. K. A1 - Buniatyan, V. V. A1 - Schöning, Michael Josef T1 - Chemical sensors based on a high-k perovskite oxide of barium strontium titanate JF - Procedia Engineering N2 - High-k perovskite oxide of barium strontium titanate (BST) represents a very attractive multi-functional transducer material for the development of (bio-)chemical sensors for liquids. In this work, BST films have been applied as a sensitive transducer material for a label-free detection of adsorbed charged macromolecules (positively charged polyelectrolytes) and concentration of hydrogen peroxide vapor as well as protection insulator layer for a contactless electrolyte-conductivity sensor. The experimental results of characterization of individual sensors are presented. Special emphasis is devoted towards the development of a capacitively-coupled contactless electrolyte-conductivity sensor. KW - barium strontium titanate KW - high-k material KW - contactless conductivity sensor KW - multi-functional material KW - hydrogen peroxide Y1 - 2014 U6 - http://dx.doi.org/10.1016/j.proeng.2014.11.258 SN - 1877-7058 N1 - EUROSENSORS 2014 ; European Conference on Solid-State Transducers <28, 2014> VL - 87 SP - 28 EP - 31 PB - Elsevier CY - Amsterdam ER - TY - JOUR A1 - Bäcker, Matthias A1 - Rakowski, D. A1 - Poghossian, Arshak A1 - Biselli, Manfred A1 - Wagner, Patrick A1 - Schöning, Michael Josef T1 - Chip-based amperometric enzyme sensor system for monitoring of bioprocesses by flow-injection analysis JF - Journal of Biotechnology N2 - 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. Y1 - 2013 U6 - http://dx.doi.org/10.1016/j.jbiotec.2012.03.014 SN - 0168-1656 VL - 163 IS - 4 SP - 371 EP - 376 PB - Elsevier CY - Amsterdam ER - TY - JOUR A1 - Molinnus, Denise A1 - Hardt, G. A1 - Käver, L. A1 - Willenberg, H.S. A1 - Kröger, J.-C. A1 - Poghossian, Arshak A1 - Keusgen, Michael A1 - Schöning, Michael Josef T1 - Chip-based biosensor for the detection of low adrenaline concentrations to support adrenal venous sampling JF - Sensor and Actuators B: Chemical N2 - A chip-based amperometric biosensor referring on using the bioelectrocatalytical amplification principle for the detection of low adrenaline concentrations is presented. The adrenaline biosensor has been prepared by modification of a platinum thin-film electrode with an enzyme membrane containing the pyrroloquinoline quinone-dependent glucose dehydrogenase and glutaraldehyde. Measuring conditions such as temperature, pH value, and glucose concentration have been optimized to achieve a high sensitivity and a low detection limit of about 1 nM adrenaline measured in phosphate buffer at neutral pH value. The response of the biosensor to different catecholamines has also been proven. Long-term stability of the adrenaline biosensor has been studied over 10 days. In addition, the biosensor has been successfully applied for adrenaline detection in human blood plasma for future biomedical applications. Furthermore, preliminary experiments have been carried to detect the adrenaline-concentration difference measured in peripheral blood and adrenal venous blood, representing the adrenal vein sampling procedure of a physician. Y1 - 2018 U6 - http://dx.doi.org/10.1016/j.snb.2018.05.136 SN - 0925-4005 VL - 272 SP - 21 EP - 27 PB - Elsevier CY - Amsterdam ER - TY - JOUR A1 - Artmann, Gerhard A1 - Hueck, I. S. A1 - Hollweg, H. G. A1 - Schmid-Schönbein, G. W. T1 - Chlorpromazine modulates the Morphological Macro- and Microstructure of Endothelial Cells. Hueck, I. S.; Hollweg, H. G.; Schmid-Schönbein, G. W.; Artmann, Gerhard Michael JF - American Journal of Physiology. Cell Physiology. 278 (2000), H. 5 Y1 - 2000 SN - 1522-1563 N1 - Zählung: C873- C878 SP - 873 EP - 878 ER - TY - JOUR A1 - Schöning, Michael Josef A1 - Brinkmann, D. A1 - Rolka, David A1 - Demuth, C. A1 - Poghossian, Arshak T1 - CIP (cleaning-in-place) suitable “non-glass” pH sensor based on a Ta2O5-gate EIS structure JF - Sensors and Actuators B: Chemical. 111-112 (2005) Y1 - 2005 SN - 0925-4005 N1 - Eurosensors XVIII 2004 - The 18th European Conference on Solid-State Transducers SP - 423 EP - 429 ER - TY - JOUR A1 - Schöning, Michael Josef A1 - Brinkmann, D. A1 - Demuth, C. A1 - Poghossian, Arshak T1 - CIP (cleaning-in-place)-suitable „non-glass“ pH sensor based on a Ta2O5-gate EIS structure JF - Digest of technical papers : September 12 - 15, 2004, Rome, Italy, Pontificia Universitas Sancto Thoma Aquinate in Urbe / [conference chairperson: C. Di Natale]. Y1 - 2004 SN - 88-7621-282-5 N1 - Eurosensors ; (18, 2004, Roma) SP - 857 EP - 860 CY - Roma ER - TY - JOUR A1 - Artmann, Gerhard A1 - Burns, Laura A1 - Canaves, Jaume M. A1 - Temiz Artmann, Aysegül T1 - Circular dichroism spectra of human hemoglobin reveal a reversible structural transition at body temperature JF - European Biophysics Journal. 33 (2004), H. 6 Y1 - 2004 SN - 1432-1017 SP - 490 EP - 496 ER -