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

Transfer RNA Synthesis02:36

Transfer RNA Synthesis

13.2K
One of the unique features of tRNA is the presence of modified bases. In some tRNAs, modified bases account for nearly 20% of the total bases in the molecule. Altogether, these unusual bases protect the tRNA from enzymatic degradation by RNases.
Each of these chemical modifications is carried by a specific enzyme, post-transcription. All of these enzymes have unique base and site-specificity. Methylation, the most common chemical modification, is carried by at least nine different enzymes, with...
13.2K
Transfer RNA Synthesis02:35

Transfer RNA Synthesis

3.6K
3.6K
Colloids03:22

Colloids

20.8K
Children at play often make suspensions such as mixtures of mud and water, flour and water, or a suspension of solid pigments in water known as tempera paint. These suspensions are heterogeneous mixtures composed of relatively large particles that are visible to the naked eye or can be seen with a magnifying glass. They are cloudy, and the suspended particles settle out after mixing. On the other hand, a solution is a homogeneous mixture in which no settling occurs and in which the dissolved...
20.8K
Ionic Bonding and Electron Transfer02:48

Ionic Bonding and Electron Transfer

48.8K
Ions are atoms or molecules bearing an electrical charge. A cation (a positive ion) forms when a neutral atom loses one or more electrons from its valence shell, and an anion (a negative ion) forms when a neutral atom gains one or more electrons in its valence shell. Compounds composed of ions are called ionic compounds (or salts), and their constituent ions are held together by ionic bonds: electrostatic forces of attraction between oppositely charged cations and anions. 
48.8K
Electron Transport Chains01:28

Electron Transport Chains

111.7K
The final stage of cellular respiration is oxidative phosphorylation that consists of two steps: the electron transport chain and chemiosmosis. The electron transport chain is a set of proteins found in the inner mitochondrial membrane in eukaryotic cells. Its primary function is to establish a proton gradient that can be used during chemiosmosis to produce ATP and generate electron carriers, such as NAD+ and FAD, that are used in glycolysis and the citric acid cycle.
The ETC is comprised of...
111.7K
Oxidation Numbers03:14

Oxidation Numbers

42.2K
In redox reactions, the transfer of electrons occurs between reacting species. Electron transfer is described by a hypothetical number called the oxidation number (or oxidation state). It represents the effective charge of an atom or element, which is assigned using a set of rules.
42.2K

You might also read

Related Articles

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

Sort by
Same author

Non-ideal stoichiometry and thermochemistry of aqueous iridium oxide nanoparticles in proton-coupled electron transfer and oxygen-atom transfer.

Chemical science·2026
Same author

Proton-Coupled Electron and Energy Transfer in Molecular Triads.

Accounts of chemical research·2026
Same author

Alkali metal cation effects for rapid C-H activation by iron(0) complexes.

Chemical science·2026
Same author

Site-Divergent Oxidations within Venerable Macrolide Antibiotic Scaffolds Unveil Compounds with Broad Spectrum and Anti-MRSA Activities.

ACS central science·2026
Same author

Molecular Constraints and Electronic Structure Direct Multi-Step PCET Mechanisms in the Electrochemical Oxidation of Ruthenium Complexes.

ACS omega·2026
Same author

Visible Light Promoted Alkenyl C-H Bond Addition to Dienes and Aldehydes for the Synthesis of Frameworks Relevant to Polyketide Natural Products.

ACS catalysis·2026

Related Experiment Video

Updated: Jan 22, 2026

Photodeposition of Pd onto Colloidal Au Nanorods by Surface Plasmon Excitation
06:58

Photodeposition of Pd onto Colloidal Au Nanorods by Surface Plasmon Excitation

Published on: August 15, 2019

7.9K

Colloidal Hexagonal Tungsten Oxide Nanorods: Synthesis, Characterization, and Proton-Coupled Electron Transfer.

Noah J Gibson1, Giovanny A Parada1,2, Brandon Q Mercado1

  • 1Department of Chemistry, Yale University, New Haven, Connecticut 06520-8107, United States.

Inorganic Chemistry
|January 20, 2026
PubMed
Summary

Researchers synthesized and characterized hexagonal tungsten oxide nanorods. These nanorods undergo redox reactions, forming hydrogen tungsten bronzes via proton-coupled electron transfer (PCET) pathways without water or catalysts.

More Related Videos

Synthesis and Characterization of Supramolecular Colloids
09:26

Synthesis and Characterization of Supramolecular Colloids

Published on: April 22, 2016

10.4K
Hydroquinone Based Synthesis of Gold Nanorods
08:55

Hydroquinone Based Synthesis of Gold Nanorods

Published on: August 10, 2016

14.9K

Related Experiment Videos

Last Updated: Jan 22, 2026

Photodeposition of Pd onto Colloidal Au Nanorods by Surface Plasmon Excitation
06:58

Photodeposition of Pd onto Colloidal Au Nanorods by Surface Plasmon Excitation

Published on: August 15, 2019

7.9K
Synthesis and Characterization of Supramolecular Colloids
09:26

Synthesis and Characterization of Supramolecular Colloids

Published on: April 22, 2016

10.4K
Hydroquinone Based Synthesis of Gold Nanorods
08:55

Hydroquinone Based Synthesis of Gold Nanorods

Published on: August 10, 2016

14.9K

Area of Science:

  • Materials Science
  • Nanotechnology
  • Electrochemistry

Background:

  • Tungsten oxide (WO3) possesses diverse structural chemistry and redox capabilities.
  • Understanding redox reactions in nanomaterials is crucial for developing advanced applications.
  • Colloidal nanomaterials offer unique properties for solution-based chemical transformations.

Purpose of the Study:

  • To synthesize and characterize oleylamine-capped hexagonal tungsten oxide nanorods (NRs).
  • To investigate the redox reactivity of these NRs using various proton-coupled electron transfer (PCET) methods.
  • To explore PCET processes in non-aqueous media, avoiding water and noble metal catalysts.

Main Methods:

  • Adapted synthesis yielding anisotropic hexagonal tungsten oxide nanorods.
  • Characterization using spectroscopy and titration.
  • Redox reactions induced by photolysis, PCET reagents, or electron/proton donor-acceptor pairs in aprotic solvents.

Main Results:

  • Successfully synthesized stable colloidal hexagonal tungsten oxide nanorods (∼3 × 3 × 20 nm).
  • Demonstrated oxidation to h-WO3 and reduction to hydrogen tungsten bronzes (h-H0.3WO3).
  • Established an obligate 1:1H+:e- stoichiometry for redox transformations, dependent on proton activity and ligand protonation.
  • Confirmed nanorod structural stability through redox cycling.
  • Showcased the generality of the PCET perspective across different reaction pathways.

Conclusions:

  • Hexagonal tungsten oxide nanorods can be controllably reduced and oxidized in non-aqueous media.
  • PCET reactions are viable without water or noble metal catalysts, offering a versatile approach.
  • The study expands the understanding of PCET mechanisms for tungsten oxide nanomaterials.