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Related Concept Videos

Potential Energy00:52

Potential Energy

42.9K
The energy stored by a structure and location of matter in space is called potential energy. For instance, raising a kettlebell changes its spatial location and increases its potential energy. Similarly, a stretched rubber band contains potential energy which, under certain conditions, can be converted into other forms of energy, such as kinetic energy.
Chemical bonds that form attractive forces between atoms also contain potential energy, called chemical energy. When a chemical reaction...
42.9K
Potential Energy01:09

Potential Energy

1.0K
A conservative force, such as a gravitational or elastic force, gives the body the capacity to do work. This capacity, measured as the potential energy, depends on the body's location or “position” relative to a fixed reference position or datum. The gravitational potential energy is considered zero at the reference point. Suppose a body is located at some vertical distance above a fixed horizontal reference or datum. In that case, the weight of the body has positive gravitational potential...
1.0K
Standard Electrode Potentials03:02

Standard Electrode Potentials

50.5K
On comparing the reactivity of silver and lead, it is observed that the two ionic species, Ag+ (aq) and Pb2+ (aq), show a difference in their redox reactivity towards copper: the silver ion undergoes spontaneous reduction, while the lead ion does not. This relative redox activity can be easily quantified in electrochemical cells by a property called cell potential. This property is commonly known as cell voltage in electrochemistry, and it is a measure of the energy which accompanies the charge...
50.5K
Cell Potential and Free Energy02:58

Cell Potential and Free Energy

46.7K
Thermodynamics of a Redox Reaction
Thermodynamics is the branch of physics dealing with the relationship between heat and other forms of energy. In an electrochemical cell, chemical energy is converted into electrical energy.
Thus, a link can be predicted between cell potential, free energy change, and the equilibrium constant for the reaction. Cell potential can also be measured as the oxidant or the reducing strength, and similar acid-base strength measures are reflected in equilibrium...
46.7K
The Resting Membrane Potential01:21

The Resting Membrane Potential

143.3K
Overview
143.3K
Electric Potential and Potential Difference01:16

Electric Potential and Potential Difference

5.8K
Suppose a positive test charge moves away from a positive static charge, then the Coulomb force does positive work, and its electric potential energy decreases. The potential energy per unit charge is defined as the electric potential. The electric potential is independent of the test charge.
When a test charge moves from the initial to the final position, the electric potential difference between those positions is defined as the ratio of the change in the potential energy to the charge on the...
5.8K

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Related Experiment Video

Updated: Feb 11, 2026

Applications of EEG Neuroimaging Data: Event-related Potentials, Spectral Power, and Multiscale Entropy
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Acidithiobacillus ferrooxidans and its potential application.

Shuang Zhang1, Lei Yan2, Weijia Xing1

  • 1Heilongjiang Provincial Key Laboratory of Environmental Microbiology and Recycling of Argo-Waste in Cold Region, College of Life Science and Biotechnology, Heilongjiang Bayi Agricultural University (HBAU), 5 Xinfeng Road, Daqing High-Tech Industrial Development Zone, Daqing, 163319, Heilongjiang, People's Republic of China.

Extremophiles : Life Under Extreme Conditions
|April 27, 2018
PubMed
Summary

Acidithiobacillus ferrooxidans, a microbe thriving in acid, utilizes unique energy pathways and exhibits weak magnetotaxis. This bacterium shows promise for environmental applications like sulfur removal and metal recycling.

Keywords:
Acidithiobacillus ferrooxidansGenomovarIron and sulfur oxidationMagnetic propertyPotential applicationQuorum sensing

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Area of Science:

  • Microbiology
  • Environmental Science
  • Biotechnology

Background:

  • Acidithiobacillus ferrooxidans (A. ferrooxidans) thrives in extreme acidic environments.
  • It plays a role in carbon dioxide and nitrogen fixation.
  • Energy is derived from Fe2+ oxidation and reduced sulfur oxidation.

Purpose of the Study:

  • To summarize the characteristics and potential applications of Acidithiobacillus ferrooxidans.
  • To highlight its unique metabolic and magnetic properties.

Main Methods:

  • Genomic analysis of A. ferrooxidans genomovars (genome size 2.89-4.18 Mb).
  • Investigation of chemotactic movement regulated by quorum sensing.
  • Analysis of magnetosome formation (15-70 nm magnetite) and magnetic properties.

Main Results:

  • A. ferrooxidans utilizes diverse electron transfer pathways for energy.
  • Weak magnetotaxis observed due to specific magnetite magnetosomes.
  • Distinct magnetic properties at room and low temperatures compared to other magnetotactic bacteria.

Conclusions:

  • A. ferrooxidans possesses significant potential for sulfur removal from solids and gases.
  • Applications include metals recycling from ores, electric waste, and sludge.
  • Further potential in biochemical synthesis and metal workpiece machining.