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

Adhesion01:14

Adhesion

44.3K
Adhesion occurs when one type of molecule is attracted to a different molecule. Water exhibits adhesive properties in the presence of polar surfaces, such as glass or cellulose in plants. For instance, when water is poured into a glass, the positively charged hydrogen molecules of water are more attracted to the negatively charged oxygen molecules in the silica than to the oxygen in neighboring water molecules.
Capillary action is a result of water’s adhesive tendencies. When a narrow...
44.3K
Formal Charges02:42

Formal Charges

40.4K
In some cases, there are seemingly more than one valid Lewis structures for molecules and polyatomic ions. The concept of formal charges can be used to help predict the most appropriate Lewis structure when more than one reasonable structure exists.
40.4K
Ions and Ionic Charges03:27

Ions and Ionic Charges

79.0K
In ordinary chemical reactions, the nucleus — which contains the protons and neutrons of each atom and thus identifies the element — remains unchanged. Electrons, however, can be added to atoms by transfer from other atoms, lost by transfer to other atoms, or shared with other atoms. The transfer and sharing of electrons among atoms govern the chemistry of the elements. During the formation of some compounds, atoms gain or lose electrons to form electrically charged particles called...
79.0K
Atomic Radii and Effective Nuclear Charge03:08

Atomic Radii and Effective Nuclear Charge

62.0K
The elements in groups of the periodic table exhibit similar chemical behavior. This similarity occurs because the members of a group have the same number and distribution of electrons in their valence shells.
62.0K
Electric Charges01:11

Electric Charges

22.8K
From lightning during thunderstorms to electronic devices, the phenomenon of electromagnetism is all around us. The electromagnetic force is one of the four fundamental forces of nature. It has been known to humanity in various forms for thousands of years. For example, the ancient Greek philosopher Thales of Miletus recorded his experiments on static electricity using amber and fur in the sixth century BC.
The English physicist William Gilbert studied the phenomenon of static electricity in...
22.8K
Charge on a Conductor01:26

Charge on a Conductor

5.4K
An interesting property of a conductor in static equilibrium is that extra charges on the conductor end up on its outer surface, regardless of where they originate. Consider a hollow metallic conductor with a uniform surface charge density. Since the conductor itself is in electrostatic equilibrium, there should not be any electric field inside the conductor. Now, assume a Gaussian surface enclosing the hollow portion. Applying Gauss's law, the inner surface of the hollow conductor will not...
5.4K

You might also read

Related Articles

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

Sort by
Same author

Energetics, electron uptake mechanisms and limitations of electroautotrophs growing on biocathodes - A review.

Bioresource technology·2021
Same author

Design and testing of a pilot scale magnetic separator for the treatment of textile dyeing wastewater.

Journal of environmental management·2018
Same author

Correction to Mutational Replacements at the "Glycine Hinge" of the Escherichia coli Chemoreceptor Tsr Support a Signaling Role for the C-Helix Residue.

Biochemistry·2017
Same author

Mutational Replacements at the "Glycine Hinge" of the Escherichia coli Chemoreceptor Tsr Support a Signaling Role for the C-Helix Residue.

Biochemistry·2017

Related Experiment Video

Updated: Jan 31, 2026

Monitoring Spatial Segregation in Surface Colonizing Microbial Populations
07:40

Monitoring Spatial Segregation in Surface Colonizing Microbial Populations

Published on: October 29, 2016

11.6K

Enhanced biocathode performance through surface charge induced microbial adhesion.

Sofia Antic Gorrazzi1, Sebastian Bonanni1, Alejandro Robledo1

  • 1Área de Ingeniería de Interfases y Bioprocesos, INTEMA (CONICET-UNMdP), Colón 10850, Mar del Plata, Argentina.

Bioresource Technology
|January 29, 2026
PubMed
Summary

Surface charge manipulation enhances microbial adhesion to electrodes, boosting biocathode performance. This Surface Charge-Induced Microbial Adhesion (SCIMA) strategy improves biofilm formation and current generation without material dependence.

Keywords:
Bacterial adhesionElectroactive biofilmsElectrostatic repulsionMicrobial electrochemical technologiesXDLVO theory

More Related Videos

Preparation and High-temperature Anti-adhesion Behavior of a Slippery Surface on Stainless Steel
10:52

Preparation and High-temperature Anti-adhesion Behavior of a Slippery Surface on Stainless Steel

Published on: March 29, 2018

8.0K
Experimental Methods of Dust Charging and Mobilization on Surfaces with Exposure to Ultraviolet Radiation or Plasmas
07:54

Experimental Methods of Dust Charging and Mobilization on Surfaces with Exposure to Ultraviolet Radiation or Plasmas

Published on: April 3, 2018

8.7K

Related Experiment Videos

Last Updated: Jan 31, 2026

Monitoring Spatial Segregation in Surface Colonizing Microbial Populations
07:40

Monitoring Spatial Segregation in Surface Colonizing Microbial Populations

Published on: October 29, 2016

11.6K
Preparation and High-temperature Anti-adhesion Behavior of a Slippery Surface on Stainless Steel
10:52

Preparation and High-temperature Anti-adhesion Behavior of a Slippery Surface on Stainless Steel

Published on: March 29, 2018

8.0K
Experimental Methods of Dust Charging and Mobilization on Surfaces with Exposure to Ultraviolet Radiation or Plasmas
07:54

Experimental Methods of Dust Charging and Mobilization on Surfaces with Exposure to Ultraviolet Radiation or Plasmas

Published on: April 3, 2018

8.7K

Area of Science:

  • Microbial Electrochemical Technologies
  • Bioelectrochemistry
  • Surface Science

Background:

  • Biocathode performance is limited by low biomass accumulation due to electrostatic repulsion between negatively charged bacteria and electrodes.
  • Conventional polarity reversal methods are time-consuming and require specific bacterial capabilities.

Purpose of the Study:

  • To enhance biocathode performance by overcoming electrostatic repulsion during bacterial adhesion.
  • To investigate the effect of electrode surface charge on bacterial adhesion kinetics and biofilm formation.
  • To introduce a novel strategy for improving biocathode development.

Main Methods:

  • Systematic investigation of bacterial adhesion kinetics and current generation using real-time, in situ monitoring.
  • Polarization of electrodes at potentials above the potential of zero charge (PZC) to create a positive surface charge.
  • Testing the strategy on gold and carbon-based graphite electrodes.

Main Results:

  • A fivefold increase in irreversibly adhered bacteria was observed on positively charged electrodes within 90 minutes.
  • A 63% higher bacterial attachment rate was achieved with positively charged electrodes.
  • Enhanced biofilm formation led to significantly higher cathodic current densities compared to negatively charged electrodes.

Conclusions:

  • Surface Charge-Induced Microbial Adhesion (SCIMA) effectively suppresses electrostatic repulsion, promoting bacterial adhesion and biofilm formation.
  • The SCIMA strategy is material-independent, demonstrating broad applicability.
  • This approach offers a mechanistic framework for optimizing biocathode performance in microbial electrochemical technologies.