• Deutsch
Login

Open Access

  • Home
  • Search
  • Browse
  • Administration
  • FAQ

Refine

Author

  • David Rolka (8)
  • Michael Josef Schöning (8)
  • Arshak Poghossian (5)
  • Heiko Iken (2)
  • Monika Turek (2)
  • Niko Näther (2)
  • A. V. Legin (1)
  • C. Demuth (1)
  • Christina Wege (1)
  • Claudia Koch (1)
  • D. Brinkmann (1)
  • D. O. Kirsanov (1)
  • Derick Yongabi (1)
  • Geertrui Rasschaert (1)
  • Gideon Wackers (1)
  • Hassan Arida (1)
  • Joachim P. Kloock (1)
  • Johan Robbens (1)
  • M. Koudelka-Hep (1)
  • M. M. Khaydukova (1)
+ more

Year of publication

  • 2021 (1)
  • 2018 (1)
  • 2014 (1)
  • 2009 (1)
  • 2006 (1)
  • 2005 (2)
  • 2004 (1)

Document Type

  • Article (7)
  • Conference Proceeding (1)

Institute

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

8 search hits

  • 1 to 8
  • BibTeX
  • CSV
  • RIS
  • 10
  • 20
  • 50
  • 100

Sort by

  • Year
  • Year
  • Title
  • Title
  • Author
  • Author
Two microcell flow-injection analysis (FIA) platforms for capacitive silicon-based field-effect sensors (2005)
Niko Näther ; David Rolka ; Arshak Poghossian ; M. Koudelka-Hep ; Michael Josef Schöning
Integration of a capacitive EIS sensor into a FIA system for pH and penicillin determination (2004)
David Rolka ; Arshak Poghossian ; Michael Josef Schöning
CIP (cleaning-in-place) suitable “non-glass” pH sensor based on a Ta2O5-gate EIS structure (2005)
Michael Josef Schöning ; D. Brinkmann ; David Rolka ; C. Demuth ; Arshak Poghossian
A Novel Thin-Film Copper Array Based on an Organic/Inorganic Sensor Hybrid: Microfabrication, Potentiometric Characterization, and Flow-Injection Analysis Application (2009)
Hassan Arida ; Monika Turek ; David Rolka ; Michael Josef Schöning
A semiconductor-based field-effect platform for (bio-)chemical and physical sensors: From capacitive EIS sensors and LAPS over ISFETs to nano-scale devices (2006)
Michael Josef Schöning ; Maryam H. Abouzar ; Torsten Wagner ; Niko Näther ; David Rolka ; Tatsuo Yoshinobu ; Joachim P. Kloock ; Monika Turek ; Sven Ingebrandt ; Arshak Poghossian
Field-effect biosensor using virus particles as scaffolds for enzyme immobilization (2018)
Arshak Poghossian ; Melanie Jablonski ; Claudia Koch ; Thomas Bronder ; David Rolka ; Christina Wege ; Michael Josef Schöning
A field-effect biosensor employing tobacco mosaic virus (TMV) particles as scaffolds for enzyme immobilization is presented. Nanotubular TMV scaffolds allow a dense immobilization of precisely positioned enzymes with retained activity. To demonstrate feasibility of this new strategy, a penicillin sensor has been developed by coupling a penicillinase with virus particles as a model system. The developed field-effect penicillin biosensor consists of an Al-p-Si-SiO₂-Ta₂O₅-TMV structure and has been electrochemically characterized in buffer solutions containing different concentrations of penicillin G. In addition, the morphology of the biosensor surface with virus particles was characterized by scanning electron microscopy and atomic force microscopy methods. The sensors possessed a high penicillin sensitivity of ~ 92 mV/dec in a nearly-linear range from 0.1 mM to 10 mM, and a low detection limit of about 50 µM. The long-term stability of the penicillin biosensor was periodically tested over a time period of about one year without any significant loss of sensitivity. The biosensor has also been successfully applied for penicillin detection in bovine milk samples.
Multivariate processing of atomic-force microscopy images for detection of the response of plasticized polymeric membranes (2014)
M. M. Khaydukova ; O. A. Zadorozhnaya ; D. O. Kirsanov ; Heiko Iken ; David Rolka ; Michael Josef Schöning ; V. A. Babain ; Yu. G. Vlasov ; A. V. Legin
The possibility of using the atomic-force microscopy as a method for detection of the analytical signal from plasticized polymeric sensor membranes was analyzed. The surfaces of cadmium-selective membranes based on two polymeric matrices were examined. The digital images were processed with multivariate image analysis techniques. A correlation was found between the surface profile of an ion-selective membrane and the concentration of the ion in solution.
Selective Campylobacter detection and quantification in poultry: A sensor tool for detecting the cause of a common zoonosis at its source (2021)
Stella Givanoudi ; Peter Cornelis ; Geertrui Rasschaert ; Gideon Wackers ; Heiko Iken ; David Rolka ; Derick Yongabi ; Johan Robbens ; Michael Josef Schöning ; Marc Heyndrickx ; Patrick Wagner
  • 1 to 8

OPUS4 Logo

  • Contact
  • Imprint
  • Datenschutzerklärung
  • Sitelinks