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Author

  • Patrick H. Wagner (8)
  • Michael J. Schöning (7)
  • Zaid B. Jildeh (6)
  • Patrick Kirchner (5)
  • Jan Oberländer (4)
  • Torsten Wagner (3)
  • Rene Welden (2)
  • Alexander Kremers (1)
  • Cindy A. Nagamine Komesu (1)
  • Farnoosh Vahidpour (1)
  • Klaus Baltes (1)
  • Michael Josef Schöning (1)
  • Michael Keusgen (1)

Year of publication

  • 2021 (2)
  • 2020 (2)
  • 2019 (1)
  • 2018 (2)
  • 2017 (1)

Keywords

  • bioburdens (1)
  • enzymatic biosensor (1)
  • penicillin (1)
  • penicillinase (1)
  • photoelectrochemistry (1)
  • sterility tests (1)
  • sterilization efficacy (1)
  • sterilization methods (1)
  • titanium dioxide photoanode (1)
  • validation methods (1)

Institute

  • Fachbereich Medizintechnik und Technomathematik (8)
  • INB - Institut für Nano- und Biotechnologien (8)

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Experimental and Numerical Analyzes of a Sensor Based on Interdigitated Electrodes for Studying Microbiological Alterations (2018)
Zaid B. Jildeh ; Jan Oberländer ; Patrick Kirchner ; Michael Keusgen ; Patrick H. Wagner ; Michael J. Schöning
Thermocatalytic Behavior of Manganese (IV) Oxide as Nanoporous Material on the Dissociation of a Gas Mixture Containing Hydrogen Peroxide (2018)
Zaid B. Jildeh ; Jan Oberländer ; Patrick Kirchner ; Patrick H. Wagner ; Michael J. Schöning
FEM-based modeling of a calorimetric gas sensor for hydrogen peroxide monitoring (2017)
Zaid B. Jildeh ; Patrick Kirchner ; Jan Oberländer ; Alexander Kremers ; Torsten Wagner ; Patrick H. Wagner ; Michael J. Schöning
Development of an in-line evaporation unit for the production of gas mixtures containing hydrogen peroxide – numerical modeling and experimental results (2019)
Zaid B. Jildeh ; Patrick Kirchner ; Klaus Baltes ; Patrick H. Wagner ; Michael J. Schöning
Development of a package-sterilization process for aseptic filling machines: A numerical approach and validation for surface treatment with hydrogen peroxide (2020)
Zaid B. Jildeh ; Patrick Kirchner ; Jan Oberländer ; Farnoosh Vahidpour ; Patrick H. Wagner ; Michael J. Schöning
Light-Addressable Electrodes for Dynamic and Flexible Addressing of Biological Systems and Electrochemical Reactions (2020)
Rene Welden ; Michael J. Schöning ; Patrick H. Wagner ; Torsten Wagner
Sterilization of Objects, Products, and Packaging Surfaces and Their Characterization in Different Fields of Industry: The Status in 2020 (2021)
Zaid B. Jildeh ; Patrick H. Wagner ; Michael J. Schöning
The treatment method to deactivate viable microorganisms from objects or products is termed sterilization. There are multiple forms of sterilization, each intended to be applied for a specific target, which depends on—but not limited to—the thermal, physical, and chemical stability of that target. Herein, an overview on the currently used sterilization processes in the global market is provided. Different sterilization techniques are grouped under a category that describes the method of treatment: radiation (gamma, electron beam, X-ray, and ultraviolet), thermal (dry and moist heat), and chemical (ethylene oxide, ozone, chlorine dioxide, and hydrogen peroxide). For each sterilization process, the typical process parameters as defined by regulations and the mode of antimicrobial activity are summarized. Finally, the recommended microorganisms that are used as biological indicators to validate sterilization processes in accordance with the rules that are established by various regulatory agencies are summarized.
Photoelectrochemical enzymatic penicillin biosensor: Aproof-of-concept experiment (2021)
Rene Welden ; Cindy A. Nagamine Komesu ; Patrick H. Wagner ; Michael Josef Schöning ; Torsten Wagner
Photoelectrochemical (PEC) biosensors are a rather novel type of biosensors thatutilizelighttoprovideinformationaboutthecompositionofananalyte,enablinglight-controlled multi-analyte measurements. For enzymatic PEC biosensors,amperometric detection principles are already known in the literature. In con-trast, there is only a little information on H+-ion sensitive PEC biosensors. Inthis work, we demonstrate the detection of H+ions emerged by H+-generatingenzymes, exemplarily demonstrated with penicillinase as a model enzyme on atitanium dioxide photoanode. First, we describe the pH sensitivity of the sensorand study possible photoelectrocatalytic reactions with penicillin. Second, weshow the enzymatic PEC detection of penicillin.
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