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Title: Electrochemically active biofilm-enabled biosensors: current status and opportunities for biofilm engineering
Authors: Hu, Yidan
Han, Xi
Shi, Liang
Cao, Bin
Keywords: Engineering::Environmental engineering
Issue Date: 2022
Source: Hu, Y., Han, X., Shi, L. & Cao, B. (2022). Electrochemically active biofilm-enabled biosensors: current status and opportunities for biofilm engineering. Electrochimica Acta, 428, 140917-.
Project: M4330005.C70 
Journal: Electrochimica Acta
Abstract: Electrochemically active biofilms (EABs) are formed by electroactive bacteria capable of exchanging electrons with electrodes. EABs have been employed as bio-elements in bioelectrochemical sensors which sense analytes of interest by converting metabolic changes to easily detectable electrical signals. Although EAB-enabled biosensors have shown promise in environmental applications, such as water quality monitoring, their most perceived practical applications are limited by low sensitivity, low specificity and short-term stability. Engineering EABs could be an effective strategy to improve the performance of EAB-enabled biosensors. In this review, we briefly introduce EAB with the focus on its extracellular electron transfer, development and matrix, as well as EAB-enabled biosensors including their general principle and potential applications. We then discuss key limitations of EAB-enabled biosensors and the opportunities that biofilm engineering may provide to address these limitations.
ISSN: 0013-4686
DOI: 10.1016/j.electacta.2022.140917
Schools: School of Civil and Environmental Engineering 
Research Centres: Singapore Centre for Environmental Life Sciences and Engineering 
Rights: © 2022 Elsevier Ltd. All rights reserved.
Fulltext Permission: none
Fulltext Availability: No Fulltext
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