Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Microbial Biosensors01:17

Microbial Biosensors

Microbial biosensors are analytical devices that utilize living microbes to detect specific substances through measurable signals. These devices consist of two main components: biosensing organisms and signal-transducing elements. Biosensing organisms, such as Escherichia coli or Saccharomyces cerevisiae, are typically housed in multiwell plates connected to transducers, enabling rapid, real-time detection of target analytes.Signal Generation MechanismWhen a target analyte—such as...

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Sustainable Oxygen Reduction Catalyzed by Whole-Cell Electro-Mutualism.

Environmental science & technology·2026
Same author

Iron-mediated photochemical fate of algal-derived DOM: Unraveling upward and downward environmental effects.

Water research·2025
Same author

Breaking the Carbon-Fluorine Stronghold: Reductive Defluorination of PFASs.

Environmental science & technology·2025
Same author

Metabolic allocation strategies of Geobacter in electroactive biofilms to adapt to varying acetate supply concentrations.

Water research·2025
Same author

Extracellular Electron Uptake Mediated by H<sub>2</sub>O<sub>2</sub>.

Environmental science & technology·2025
Same author

Dual-purpose elemental sulfur for capturing and accelerating biodegradation of petroleum hydrocarbons in anaerobic environment.

Water research X·2024

Related Experiment Video

Updated: May 27, 2026

Bacterial Detection & Identification Using Electrochemical Sensors
09:30

Bacterial Detection & Identification Using Electrochemical Sensors

Published on: April 23, 2013

28.4K

Design, optimization and application of a highly sensitive microbial electrolytic cell-based BOD biosensor.

Ziyuan Wang1, Chengmei Liao1, Zihan Zhong1

  • 1MOE Key Laboratory of Pollution Processes and Environmental Criteria, Tianjin Key Laboratory of Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University, No. 38 Tongyan Road, Jinnan District, Tianjin, 300350, China.

Environmental Research
|October 14, 2022
PubMed
Summary
This summary is machine-generated.

This study developed a highly sensitive microbial electrolytic cell (MEC)-type biochemical oxygen demand (BOD) sensor for real-time water pollution monitoring. The optimized sensor accurately measured BOD levels and provided early warnings of organic matter increases in a sewage plant.

Keywords:
Biochemical oxygen demandEngineeringMicrobial electrolysis cellOptimizedReal-time monitoringWastewater treatment plant

More Related Videos

Optical Detection of E. coli Bacteria by Mesoporous Silicon Biosensors
07:22

Optical Detection of E. coli Bacteria by Mesoporous Silicon Biosensors

Published on: November 20, 2013

17.0K
Dry Film Photoresist-based Electrochemical Microfluidic Biosensor Platform: Device Fabrication, On-chip Assay Preparation, and System Operation
13:42

Dry Film Photoresist-based Electrochemical Microfluidic Biosensor Platform: Device Fabrication, On-chip Assay Preparation, and System Operation

Published on: September 19, 2017

11.9K

Related Experiment Videos

Last Updated: May 27, 2026

Bacterial Detection & Identification Using Electrochemical Sensors
09:30

Bacterial Detection & Identification Using Electrochemical Sensors

Published on: April 23, 2013

28.4K
Optical Detection of E. coli Bacteria by Mesoporous Silicon Biosensors
07:22

Optical Detection of E. coli Bacteria by Mesoporous Silicon Biosensors

Published on: November 20, 2013

17.0K
Dry Film Photoresist-based Electrochemical Microfluidic Biosensor Platform: Device Fabrication, On-chip Assay Preparation, and System Operation
13:42

Dry Film Photoresist-based Electrochemical Microfluidic Biosensor Platform: Device Fabrication, On-chip Assay Preparation, and System Operation

Published on: September 19, 2017

11.9K

Area of Science:

  • Environmental Science
  • Electrochemistry
  • Biotechnology

Background:

  • Biochemical oxygen demand (BOD) is a critical indicator for water pollution assessment and wastewater treatment design.
  • Microbial electrochemical technology offers potential for real-time monitoring of organic matter, but MEC-type BOD sensors are underexplored.

Purpose of the Study:

  • To design and optimize a highly sensitive MEC-type BOD sensor for accurate and real-time water quality monitoring.
  • To evaluate the sensor's performance in laboratory settings and its practical application in a sewage treatment plant.

Main Methods:

  • Screening of inoculants and comparison of electrode materials for optimal sensor performance.
  • Optimization of reactor configuration, including miniaturization, electrode spacing, and fluid structure design.
  • Testing the sensor with model solutions and in a field application at a sewage plant.

Main Results:

  • Optimized sensor demonstrated fast activation and sensitive testing capabilities.
  • Accurate measurement of BOD concentrations ranging from 10-500 mg/L with good long-term stability.
  • Successful field application as an early warning system for sudden increases in organic matter at a sewage plant.

Conclusions:

  • The developed MEC-type BOD sensor shows high potential for practical engineering applications in environmental monitoring.
  • This research advances technological innovation in water ecology and environmental monitoring by expanding the application of MEC-type BOD sensors.