Immobilisation of electrochemically active bacteria on screen-printed electrodes for rapid in situ toxicity biosensing.

ABSTRACT: Microbial biosensors can be an excellent alternative to classical methods for toxicity monitoring, which are time-consuming and not sensitive enough. However, bacteria typically connect to electrodes through biofilm formation, leading to problems due to lack of uniformity or long device production times. A suitable immobilisation technique can overcome these challenges. Still, they may respond more slowly than biofilm-based electrodes because bacteria gradually adapt to electron transfer during biofilm formation. In this study, we propose a controlled and reproducible way to fabricate bacteria-modified electrodes. The method consists of an immobilisation step using a cellulose matrix, followed by an electrode polarization in the presence of ferricyanide and glucose. Our process is short, r

SUBMITTER: Uria N 

PROVIDER: S-EPMC9488082 | biostudies-literature | 2020 Jul

REPOSITORIES: biostudies-literature