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

Microbes and Other Elemental Cycles01:24

Microbes and Other Elemental Cycles

Microbial activity plays a pivotal role in the biogeochemical cycling of iron and manganese, especially at the redox gradients characteristic of stratified aquatic environments. These cycles are driven by microbial transformations between oxidized and reduced forms of the metals, allowing organisms to exploit them for metabolic energy and structural purposes.Iron Cycling Across Redox GradientsIn neutral, oxygen-rich surface waters, iron is predominantly found in its oxidized, insoluble ferric...
Precipitation and Co-precipitation01:17

Precipitation and Co-precipitation

Precipitation and coprecipitation methods can be used to separate a mixture of ions in a solution. In qualitative inorganic analysis, ions that form sparingly soluble precipitates with the same reagent are separated based on the differences in solubility products. For example, consider the separation of Cu(II) and Fe(II) ions by precipitation as insoluble sulfides. First, copper(II) sulfide is precipitated by the addition of acidic H2S, where the dissociation of H2S is suppressed. Adding H2S...
Extraction: Advanced Methods00:56

Extraction: Advanced Methods

Metal ions can be separated from one another by complexation with organic ligands–the chelating agent– to form uncharged chelates. Here, the chelating agent must contain hydrophobic groups and behave as a weak acid, losing a proton to bind with the metal. Since most organic ligands used in this process are insoluble or undergo oxidation in the aqueous phase, the chelating agent is initially added to the organic phase and extracted into the aqueous phase. The metal-ligand complex is formed in...
Adsorption of Gases on Solids01:28

Adsorption of Gases on Solids

Adsorption is a process where molecules, known as the adsorbates, accumulate on a surface, which is referred to as the adsorbent or substrate. Occurring at the solid-gas interface, this phenomenon is crucial in various scientific and industrial contexts. The reverse of adsorption is desorption.Two types of adsorptions exist: physical (physisorption) and chemical (chemisorption). Physisorption involves gas molecules held to the solid's surface by relatively weak intermolecular van der Waals...
Colloidal precipitates01:09

Colloidal precipitates

The high insolubility of some precipitates can result in an unfavorable relative supersaturation. This can lead to colloidal particles with a large surface-to-mass ratio, where adsorption is promoted. For instance, in the precipitation of silver chloride, silver ions are adsorbed on the surface of the colloidal particles, forming a primary layer. This layer attracts ions of opposite charge (such as nitrate ions), forming a diffuse secondary layer of adsorbed ions. This electric double layer...
Microbial Leaching01:27

Microbial Leaching

Microbial leaching, also known as bioleaching, is an environmentally favorable method for extracting metals from low-grade ores using specific microorganisms. This biotechnological approach is particularly valuable for mining operations targeting copper, gold, and uranium, where traditional extraction methods may be economically or environmentally impractical.Copper Leaching and Microbial CatalysisIn copper bioleaching, crushed ore is arranged into heaps and irrigated with a dilute sulfuric...

You might also read

Related Articles

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

Sort by
Same author

Active phytoextraction of toluene shifts the microbiome and enhances degradation capacity in hybrid poplar.

Journal of environmental management·2024
Same author

Uptake and speciation of Zn and Pb by Miscanthus grown in contaminated soils.

Journal of hazardous materials·2022
Same author

Zn speciation and fate in soils and sediments along the ground transportation route of Zn ore to a smelter.

Journal of hazardous materials·2022
Same author

Structural and chemical heterogeneity of Proterozoic organic microfossils of the ca. 1 Ga old Angmaat Formation, Baffin Island, Canada.

Geobiology·2021
Same author

Identification of degrader bacteria and fungi enriched in rhizosphere soil from a toluene phytoremediation site using DNA stable isotope probing.

International journal of phytoremediation·2021
Same author

X-ray Raman scattering for bulk chemical and structural insight into green carbon.

Physical chemistry chemical physics : PCCP·2020

Related Experiment Video

Updated: Jun 22, 2026

High-throughput Siderophore Screening from Environmental Samples: Plant Tissues, Bulk Soils, and Rhizosphere Soils
12:36

High-throughput Siderophore Screening from Environmental Samples: Plant Tissues, Bulk Soils, and Rhizosphere Soils

Published on: February 9, 2019

Siderophore sorption to clays.

Patricia A Maurice1, Elizabeth A Haack, Bhoopesh Mishra

  • 1Department of Civil Engineering and Geological Sciences, University of Notre Dame, IN 46556, USA. pmaurice@nd.edu

Biometals : an International Journal on the Role of Metal Ions in Biology, Biochemistry, and Medicine
|May 30, 2009
PubMed
Summary

Siderophores, iron-chelating compounds, can bind to clay minerals. This review explores siderophore-clay interactions and their impact on metal binding, crucial for understanding nutrient cycling.

More Related Videos

Determination of the Settling Rate of Clay/Cyanobacterial Floccules
06:00

Determination of the Settling Rate of Clay/Cyanobacterial Floccules

Published on: June 11, 2018

Experimental Column Setup for Studying Anaerobic Biogeochemical Interactions Between Iron (Oxy)Hydroxides, Trace Elements, and Bacteria
06:52

Experimental Column Setup for Studying Anaerobic Biogeochemical Interactions Between Iron (Oxy)Hydroxides, Trace Elements, and Bacteria

Published on: December 19, 2017

Related Experiment Videos

Last Updated: Jun 22, 2026

High-throughput Siderophore Screening from Environmental Samples: Plant Tissues, Bulk Soils, and Rhizosphere Soils
12:36

High-throughput Siderophore Screening from Environmental Samples: Plant Tissues, Bulk Soils, and Rhizosphere Soils

Published on: February 9, 2019

Determination of the Settling Rate of Clay/Cyanobacterial Floccules
06:00

Determination of the Settling Rate of Clay/Cyanobacterial Floccules

Published on: June 11, 2018

Experimental Column Setup for Studying Anaerobic Biogeochemical Interactions Between Iron (Oxy)Hydroxides, Trace Elements, and Bacteria
06:52

Experimental Column Setup for Studying Anaerobic Biogeochemical Interactions Between Iron (Oxy)Hydroxides, Trace Elements, and Bacteria

Published on: December 19, 2017

Area of Science:

  • Environmental Science
  • Geochemistry
  • Biogeochemistry

Background:

  • Siderophores are vital organic ligands for iron acquisition by plants and microbes in iron-limited environments.
  • Hydroxamate siderophores exhibit complex sorption behaviors with aluminosilicate clays.
  • These interactions can influence the mobility and bioavailability of metals in soil and aquatic systems.

Purpose of the Study:

  • To review existing research on siderophore sorption to aluminosilicate clays.
  • To discuss the application of spectroscopic techniques in studying these interactions.
  • To examine the influence of siderophores on metal sorption to clays and identify future research directions.

Main Methods:

  • Literature review of previous studies on siderophore-clay interactions.
  • Discussion of analytical techniques including X-ray diffractometry, Fourier-transform infrared spectroscopy, and X-ray absorption spectroscopy.
  • Synthesis of findings on the effects of siderophores on metal binding to clays.

Main Results:

  • Siderophore sorption mechanisms are dependent on clay type, siderophore structure, and solution chemistry (pH, ionic strength, metal cations).
  • Siderophores can alter the sorption behavior of metals on clay surfaces.
  • Spectroscopic methods offer valuable insights into the molecular-level interactions between siderophores and clays.

Conclusions:

  • Siderophore-clay interactions are complex and context-dependent, impacting iron and other metal biogeochemical cycles.
  • Advanced spectroscopic techniques are essential for elucidating these interactions.
  • Further research is needed to fully understand the environmental implications of siderophore-clay sorption.