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

71
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...
71
Methods to Assess Microbial Populations01:30

Methods to Assess Microbial Populations

80
Assessing microbial populations is crucial for understanding microbial roles in health, ecology, and industry. Various complementary techniques—both culture-based and molecular—enable detailed analysis of microbial abundance, diversity, and function.Viable Plate CountThe viable plate count is a traditional culture-based method used to estimate the number of living microbes in a sample. After serial dilution, the sample is spread onto nutrient agar plates. Each viable cell forms a...
80
Environmental Applications of Microorganisms01:30

Environmental Applications of Microorganisms

1.5K
Microorganisms play a pivotal role in maintaining ecosystem balance by recycling essential elements such as carbon, nitrogen, and phosphorus, as well as supporting processes like bioremediation, wastewater treatment, and biofuel production.Microbes in Elemental CyclesIn the carbon cycle, microorganisms decompose organic matter, releasing carbon dioxide via aerobic respiration. This carbon dioxide is subsequently used by photosynthetic organisms to synthesize organic compounds, closing the...
1.5K

You might also read

Related Articles

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

Sort by
Same author

Editorial: Application of multi-omics analysis in thoracic cancer immunotherapy.

Frontiers in immunology·2024
Same author

Valorization of dragon fruit waste to value-added bioproducts and formulations: A review.

Critical reviews in biotechnology·2023
Same author

Protein-polysaccharide nanoconjugates: Potential tools for delivery of plant-derived nutraceuticals.

Food chemistry·2023
Same author

A global perspective on a new paradigm shift in bio-based meat alternatives for healthy diet.

Food research international (Ottawa, Ont.)·2023
Same author

Microencapsulation and Application of Probiotic Bacteria <i>Lactiplantibacillus plantarum</i> 299v Strain.

Microorganisms·2023
Same author

Tetrahydrocannabinols: potential cannabimimetic agents for cancer therapy.

Cancer metastasis reviews·2023

Related Experiment Video

Updated: Apr 19, 2026

A High Throughput Screen for Biomining Cellulase Activity from Metagenomic Libraries
10:21

A High Throughput Screen for Biomining Cellulase Activity from Metagenomic Libraries

Published on: February 1, 2011

16.6K

Novel method for screening microbes for application in microbial fuel cell.

Attila Szöllősi1, Judit M Rezessy-Szabó1, Ágoston Hoschke1

  • 1Department of Brewing and Distilling, Corvinus University of Budapest, Ménesi út 45., 1118 Budapest, Hungary.

Bioresource Technology
|December 24, 2014
PubMed
Summary

Microbes can transfer electrons to external acceptors, enabling iron reduction. A new method uses absorbance measurements to rapidly screen microbes for applications in microbial fuel cells (MFCs).

Keywords:
Bio-electricityElectron transferIron-reductionMicrobial fuel cellScreening method

More Related Videos

Self-standing Electrochemical Set-up to Enrich Anode-respiring Bacteria On-site
05:29

Self-standing Electrochemical Set-up to Enrich Anode-respiring Bacteria On-site

Published on: July 24, 2018

8.2K
Waste Water Derived Electroactive Microbial Biofilms: Growth, Maintenance, and Basic Characterization
11:58

Waste Water Derived Electroactive Microbial Biofilms: Growth, Maintenance, and Basic Characterization

Published on: December 29, 2013

14.3K

Related Experiment Videos

Last Updated: Apr 19, 2026

A High Throughput Screen for Biomining Cellulase Activity from Metagenomic Libraries
10:21

A High Throughput Screen for Biomining Cellulase Activity from Metagenomic Libraries

Published on: February 1, 2011

16.6K
Self-standing Electrochemical Set-up to Enrich Anode-respiring Bacteria On-site
05:29

Self-standing Electrochemical Set-up to Enrich Anode-respiring Bacteria On-site

Published on: July 24, 2018

8.2K
Waste Water Derived Electroactive Microbial Biofilms: Growth, Maintenance, and Basic Characterization
11:58

Waste Water Derived Electroactive Microbial Biofilms: Growth, Maintenance, and Basic Characterization

Published on: December 29, 2013

14.3K

Area of Science:

  • Microbiology
  • Electrochemistry
  • Biotechnology

Background:

  • Microbial electron transport is crucial for biogeochemical processes and bioenergy.
  • Understanding microbial exoelectron production is key for developing microbial fuel cells (MFCs).

Purpose of the Study:

  • To investigate the exoelectron production and transport capabilities of various microorganisms.
  • To develop a rapid screening method for selecting exoelectron-producing microbes for MFC applications.

Main Methods:

  • Assessed iron-reducing capabilities of microorganisms (e.g., Lactobacillus plantarum, Saccharomyces cerevisiae, Escherichia coli) with and without mediators.
  • Monitored bio-current in MFCs and correlated with iron reduction.
  • Developed a mathematical model based on regression analysis.
  • Established a novel screening method based on measuring culture absorbance at 460 nm.

Main Results:

  • Most tested microorganisms, except L. plantarum, showed significant iron-reducing capacity without mediators, indicating exoelectron secretion.
  • L. plantarum, S. cerevisiae, and E. coli required electron shuttles for Fe(3+) reduction.
  • A strong correlation was found between microbial growth, initial cell counts, and iron-reducing capacity.
  • The absorbance-based method proved robust and high-throughput for screening.

Conclusions:

  • Microbial exoelectron transfer is a viable mechanism for extracellular electron acceptance.
  • A rapid and efficient screening method for identifying suitable microbes for MFCs has been developed.
  • This method facilitates the selection of microorganisms for enhanced bioenergy production.