P35 - DIY dissolved oxygen sensors - low-cost and low-size DO-sensing utilising Chronoamperometry for Bioprocesses

Event

17. Dresdner Sensor-Symposium 2024
2024-11-25 - 2024-11-27
Dresden

Band

Poster

Chapter

1. Sensoren und Sensornetzwerke für Verfahrenstechnik und (Bio-)Prozesse

Author(s)

A. Gießel, N. Ziebart, T. Walther - Technische Universität Dresden,Dresden/D

Pages

103 - 106

DOI

10.5162/17dss2024/P35

ISBN

978-3-910600-04-1

Price

free

Abstract

The amount of dissolved oxygen (DO) present in the reaction medium is a crucial factor to measure and control in any bioprocess, as it defines the metabolic pathways available to the microorganisms. Commercially available systems for the measuring DO in aqueous solutions are often rigid, rod-shaped sensors which only allow for measurements at few points in the reaction vessel. A smaller alternative are optical sensor patches, which take up less space in the reaction system, but only allow for measurements directly at the walls of the system and only in systems made from optically transparent material. In order to achieve systems where the sensor used caters to the goal of the experiment rather than the experiment being built around the sensing capabilities avialable we aim to work on and propose ways to selfbuild oxygen sensors that can be modified for multiple use cases.