Torsten Wagner
FH Aachen
16 Papers
61 Citations
Torsten Wagner is an academic researcher from FH Aachen. The author has contributed to research in topics: Potentiometric sensor & Corynebacterium glutamicum. The author has an hindex of 7, co-authored 16 publications. Previous affiliations of Torsten Wagner include RWTH Aachen University.
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Papers
Development and characterization of a field-effect biosensor for the detection of acetoin
Denise Molinnus,Denise Molinnus,Lukas Muschallik,Laura Osorio Gonzalez,Johannes Bongaerts,Torsten Wagner,Thorsten Selmer,Petra Siegert,Michael Keusgen,Michael J. Schöning +9 more
TL;DR: Preliminary experiments have been successfully carried out for the detection of acetoin in diluted white wine samples and typical biosensor parameters such as optimal pH working range, sensitivity, hysteresis, linear concentration range and long-term stability have been examined.
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Differential imaging of the metabolism of bacteria and eukaryotic cells based on light-addressable potentiometric sensors
Shahriar Dantism,Shahriar Dantism,Shoko Takenaga,Torsten Wagner,Patrick Wagner,Michael J. Schöning +5 more
TL;DR: Three 3D-printed multi-chamber structures were developed and mounted on the planar sensor-chip surface to define four independent compartments, enabling differential measurements with varying cell concentrations, and the differential concept allows eliminating unwanted drift effects.
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Determination of the extracellular acidification of Escherichia coli K12 with a multi-chamber-based LAPS system
Shahriar Dantism,Shahriar Dantism,Shoko Takenaga,Patrick Wagner,Torsten Wagner,Michael J. Schöning +5 more
TL;DR: An on‐chip differential measuring system based on the light‐addressable potentiometric sensor (LAPS) principle combined with a 3D‐printed multi‐chamber structure has been realized to control the metabolic activity of microorganisms involved in intermediate stages of biogas production.
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Towards addressability of light-addressable potentiometric sensors: Shunting effect of non-illuminated region and cross-talk
Arshak Poghossian,Carl Frederik Werner,Carl Frederik Werner,V.V. Buniatyan,Torsten Wagner,K. Miamoto,Tatsuo Yoshinobu,Michael J. Schöning +7 more
TL;DR: In this article, an extended electrical equivalent-circuit model of the LAPS has been presented, which takes into account possible cross-talk effects due to the capacitive coupling of the non-illuminated region.
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A LAPS-Based Differential Sensor for Parallelized Metabolism Monitoring of Various Bacteria
Shahriar Dantism,Shahriar Dantism,Désirée Röhlen,Torsten Wagner,Patrick Wagner,Michael J. Schöning +5 more
TL;DR: This work describes the simultaneous analysis of the metabolic behavior of three different types of bacteria by means of a differential light-addressable potentiometric sensor (LAPS) set-up, which can open new possibilities for a cost-effective, rapid detection of the extracellular acidification of bacteria on a single sensor chip.
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