The search result changed since you submitted your search request. Documents might be displayed in a different sort order.
  • search hit 7 of 21
Back to Result List

Application of a portable multi-analyte biosensor for organic acid determination in silage

  • Multi-analyte biosensors may offer the opportunity to perform cost-effective and rapid analysis with reduced sample volume, as compared to electrochemical biosensing of each analyte individually. This work describes the development of an enzyme-based biosensor system for multi-parametric determination of four different organic acids. The biosensor array comprises five working electrodes for simultaneous sensing of ethanol, formate, d-lactate, and l-lactate, and an integrated counter electrode. Storage stability of the biosensor was evaluated under different conditions (stored at +4 °C in buffer solution and dry at −21 °C, +4 °C, and room temperature) over a period of 140 days. After repeated and regular application, the individual sensing electrodes exhibited the best stability when stored at −21 °C. Furthermore, measurements in silage samples (maize and sugarcane silage) were conducted with the portable biosensor system. Comparison with a conventional photometric technique demonstrated successful employment for rapid monitoring of complex media.

Export metadata

Additional Services

Share in Twitter Search Google Scholar
Metadaten
Author:Johanna Pilas, Y. Yazici, Thorsten Selmer, M. Keusgen, Michael Josef SchöningORCiD
DOI:https://doi.org/10.3390/s18051470
ISSN:1424-8220
Parent Title (English):Sensors
Publisher:MDPI
Place of publication:Basel
Document Type:Article
Language:English
Year of Completion:2018
Date of the Publication (Server):2018/06/26
Volume:18
Issue:5
Length:12 Seiten
Link:https://doi.org/10.3390/s18051470
Zugriffsart:weltweit
Institutes:FH Aachen / Fachbereich Chemie und Biotechnologie
FH Aachen / Fachbereich Medizintechnik und Technomathematik
FH Aachen / INB - Institut für Nano- und Biotechnologien
collections:Verlag / MDPI
Open Access / Gold