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

Structures of Solids02:22

Structures of Solids

17.9K
Solids in which the atoms, ions, or molecules are arranged in a definite repeating pattern are known as crystalline solids. Metals and ionic compounds typically form ordered, crystalline solids. A crystalline solid has a precise melting temperature because each atom or molecule of the same type is held in place with the same forces or energy. Amorphous solids or non-crystalline solids (or, sometimes, glasses) which lack an ordered internal structure and are randomly arranged. Substances that...
17.9K
Structural Isomerism02:34

Structural Isomerism

21.7K
Isomerism in Complexes
Isomers are different chemical species that have the same chemical formula. Structural isomerism of coordination compounds can be divided into two subcategories, the linkage isomers and coordination-sphere isomers.
Linkage isomers occur when the coordination compound contains a ligand that can bind to the transition metal center through two different atoms. For example, the CN− ligand can bind through the carbon atom or through the nitrogen atom. Similarly, SCN− can...
21.7K
Structure of Lipids03:38

Structure of Lipids

99.0K
Lipids include a diverse group of compounds that are largely nonpolar in nature. This is because they are hydrocarbons that include mostly nonpolar carbon-carbon or carbon-hydrogen bonds. Non-polar molecules are hydrophobic (“water fearing”), or insoluble in water. Lipids perform many different functions in a cell. Cells store energy for long-term use in the form of fats. Lipids also provide insulation from the environment for plants and animals. For example, they help keep aquatic...
99.0K
Viral Structure00:56

Viral Structure

74.6K
Viruses are extraordinarily diverse in shape and size, but they all have several structural features in common. All viruses have a core that contains a DNA- or RNA-based genome. The core is surrounded by a protective coat of proteins called the capsid. The capsid is composed of subunits called capsomeres. The capsid and genome-containing core are together known as the nucleocapsid.
74.6K
Antibody Structure01:10

Antibody Structure

65.6K
Overview
Antibodies, also known as immunoglobulins (Ig), are essential players of the adaptive immune system. These antigen-binding proteins are produced by B cells and make up 20 percent of the total blood plasma by weight. In mammals, antibodies fall into five different classes, which each elicits a different biological response upon antigen binding.
The Y-Shaped Structure of Antibodies Consists of Four Polypeptide Chains
Antibodies consist of four polypeptide chains: two identical heavy...
65.6K
Protein and Protein Structure02:15

Protein and Protein Structure

88.1K
Proteins are one of the most abundant organic molecules in living systems and have the most diverse range of functions of all macromolecules. Proteins may be structural, regulatory, contractile, or protective. They may serve in transport, storage, or membranes; or they may be toxins or enzymes. Their structures, like their functions, vary greatly. They are all, however, amino acid polymers arranged in a linear sequence.
A protein's shape is critical to its function. For example, an enzyme...
88.1K

You might also read

Related Articles

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

Sort by
Same author

Hafnium-Substituted Wells-Dawson Polyoxometalate as a High-Performance Contrast Agent for Transmission Electron Microscopy of Biological Ultrastructure.

International journal of molecular sciences·2026
Same author

Computational modelling workflows for metal-organic polyhedra in The World Avatar.

Physical chemistry chemical physics : PCCP·2026
Same author

Crystal Engineering of Intrinsic Dynamicity in Metal-Organic Frameworks for Adaptive Multicomponent Catalysis.

Angewandte Chemie (International ed. in English)·2026
Same author

A ZrO<sub><i>x</i></sub>H<sub><i>y</i></sub>-Templated UiO-66 Composite as a Heterogeneous Nanozyme for Site-Specific Myoglobin Proteolysis.

ACS applied materials & interfaces·2026
Same author

Asymmetric Trinuclear Intermediates in Metal Oxo Cluster Formation: Kinetic Evidence for a Two-Step Esterification Mechanism.

ACS nano·2026
Same author

Modeling Mo(VI)═O Biologically Related Interactions with Oximes and Hydroxylamines: Implications for Uranium Seawater Extraction.

Inorganic chemistry·2026
Same journal

Spin-crossover in metal complex-promoted homogenous catalysis.

Frontiers in chemistry·2026
Same journal

Face reverse degree topological analysis of TP-COFs, existence of isentropic COFs and spectral characteristics.

Frontiers in chemistry·2026
Same journal

An integrated annotation strategy for the phytochemical characterization of Xie-Bai-San decoction based on UPLC-Q Exactive Orbitrap HRMS, multi-database screening, and feature-based molecular networking.

Frontiers in chemistry·2026
Same journal

Core-shell structured nanomaterials in dual-modal magnetic resonance imaging guided antitumor effect via combined treatment.

Frontiers in chemistry·2026
Same journal

Photo-responsive nanozymes: from photocatalytic mechanisms to precision therapy.

Frontiers in chemistry·2026
Same journal

From theoretical energy to practical utilization: interfacial stability, transport kinetics, and cell-level design in high-energy lithium-metal batteries.

Frontiers in chemistry·2026
See all related articles

Related Experiment Video

Updated: Feb 6, 2026

Structure Solution of the Fluorescent Protein Cerulean Using MeshAndCollect
06:42

Structure Solution of the Fluorescent Protein Cerulean Using MeshAndCollect

Published on: March 19, 2019

6.2K

Keggin Structure, Quō Vādis?

Aleksandar Kondinski1, Tatjana N Parac-Vogt1

  • 1Laboratory of Bioinorganic Chemistry, Department of Chemistry, KU Leuven, Leuven, Belgium.

Frontiers in Chemistry
|August 31, 2018
PubMed
Summary
This summary is machine-generated.

Dr. James Fargher Keggin discovered the phosphotungstic acid structure, initiating polyoxometalate chemistry. This foundational work influences nanomolecular metal oxides and hydroxides research today.

Keywords:
Keggin structureclathrateskegginoidmetal oxidespolyoxometalatesstructural chemistry

More Related Videos

Crystallizing Membrane Proteins for Structure Determination using Lipidic Mesophases
22:00

Crystallizing Membrane Proteins for Structure Determination using Lipidic Mesophases

Published on: November 21, 2010

30.6K
Single Particle Cryo-Electron Microscopy: From Sample to Structure
11:52

Single Particle Cryo-Electron Microscopy: From Sample to Structure

Published on: May 29, 2021

9.7K

Related Experiment Videos

Last Updated: Feb 6, 2026

Structure Solution of the Fluorescent Protein Cerulean Using MeshAndCollect
06:42

Structure Solution of the Fluorescent Protein Cerulean Using MeshAndCollect

Published on: March 19, 2019

6.2K
Crystallizing Membrane Proteins for Structure Determination using Lipidic Mesophases
22:00

Crystallizing Membrane Proteins for Structure Determination using Lipidic Mesophases

Published on: November 21, 2010

30.6K
Single Particle Cryo-Electron Microscopy: From Sample to Structure
11:52

Single Particle Cryo-Electron Microscopy: From Sample to Structure

Published on: May 29, 2021

9.7K

Area of Science:

  • Inorganic Chemistry
  • Materials Science
  • Nanotechnology

Background:

  • The Keggin structure, first reported in 1933 for phosphotungstic acid, is a cornerstone in polyoxometalate (POM) chemistry.
  • This discovery by Dr. James Fargher Keggin marked the genesis of the field of structural polyoxometalate chemistry.
  • The Keggin structure's influence extends to the broader understanding of nanomolecular metal oxides and hydroxides.

Purpose of the Study:

  • To highlight key aspects and applications of the Keggin structure.
  • To discuss the historical impact of Keggin's discovery on polyoxometalate chemistry.
  • To explore the influence of Keggin's work on nanomolecular metal oxides and hydroxides.

Main Methods:

  • Historical perspective and literature review.
  • Analysis of the structural significance of the Keggin unit.
  • Discussion of contemporary applications and future directions.

Main Results:

  • The Keggin structure is a fundamental building block in polyoxometalate chemistry.
  • Its discovery catalyzed significant advancements in understanding complex inorganic anions.
  • The structure's versatility underpins diverse applications in catalysis, medicine, and materials science.

Conclusions:

  • The Keggin structure remains a pivotal concept in inorganic chemistry and materials science.
  • Its legacy continues to inspire research in polyoxometalates and related nanomaterials.
  • Understanding the Keggin structure is crucial for developing novel functional materials.