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  - Wagner, Torsten
A1  - Rao, C.
A1  - Otto, R.
A1  - Yoshinobu, T.
A1  - Kloock, Joachim P.
A1  - Schöning, Michael Josef
T1  - Chipkarten-basierter Multikanal lichtadressierbarer potentiometrischer Sensor für analytische Anwendungen in flüssigen Medien
JF  - Neue Herausforderungen und Anwendungen in der Sensortechnik : 7. Dresdner Sensor-Symposium ; 12. - 14. Dezember 2005, Dresden / [Forschungsgesellschaft für Messtechnik, Sensorik und Medizintechnik e.V.]. Gerald Gerlach ... (Hg.)
Y1  - 2005
SN  - 3-938863-29-3
N1  - Dresdner Beiträge zur Sensorik ; 24
SP  - 11
EP  - 14
PB  - TUDpress
CY  - Dresden
ER  - 
TY  - JOUR
A1  - Arreola, Julio
A1  - Keusgen, Michael
A1  - Wagner, Torsten
A1  - Schöning, Michael Josef
T1  - Combined calorimetric gas- and spore-based biosensor array for online monitoring and sterility assurance of gaseous hydrogen peroxide in aseptic filling machines
JF  - Biosensors and Bioelectronics
Y1  - 2019
U6  - http://dx.doi.org/10.1016/j.bios.2019.111628
SN  - 0956-5663
VL  - 143
IS  - 111628
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  - 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  - 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  - 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  - Werner, Frederik
A1  - Krumbe, Christoph
A1  - Schumacher, Katharina
A1  - Groebel, Simone
A1  - Spelthahn, Heiko
A1  - Stellberg, Michael
A1  - Wagner, Torsten
A1  - Yoshinobu, Tatsuo
A1  - Selmer, Thorsten
A1  - Keusgen, Michael
A1  - Baumann, Marcus
A1  - Schöning, Michael Josef
T1  - Determination of the extracellular acidification of Escherichia coli by a light-addressable potentiometric sensor
JF  - Physica status solidi (a) : applications and material science. 208 (2011), H. 6
Y1  - 2011
SN  - 1862-6319
SP  - 1340
EP  - 1344
PB  - Wiley
CY  - Weinheim
ER  -