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

Redox Reactions01:24

Redox Reactions

59.0K
Oxidation-reduction or redox reactions involve the transfer of electrons from one molecule or atom to another. When an atom gains an electron, another atom must lose an electron, meaning oxidation and reduction must occur together. Since the redox occurs in pairs, the atom that gets oxidized is also called the reducing agent or reductant, and the atom that is reduced is also called the oxidizing agent or oxidant. A straightforward way to remember the definitions of oxidation and reduction is...
59.0K

You might also read

Related Articles

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

Sort by
Same author

Development of Machine-Learned Interatomic Potentials to Predict Structure, Transport, and Reactivity in Platinum-Based Fuel Cells.

ACS omega·2026
Same author

Ultranarrow bright single-photon emitters in diamond with strong broadband phonon decoupling.

Nature communications·2026
Same author

How the Electrochemical Double Layer Manipulates Molecule-Metal Interactions.

ACS nano·2026
Same author

Thermal transport through molecular monolayers in plasmonic nanogaps.

Nature communications·2026
Same author

Cyclo-Polyproline: Chameleonic All-Peptide Macrocycles With Induced-Fit Host-Guest Recognition.

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

Discovery of urinary metabolite biomarkers of psychiatric disorders using two-sample Mendelian randomization.

BMC psychiatry·2026

Related Experiment Video

Updated: Feb 20, 2026

Author Spotlight: Tracking Electrochemistry on Single Nanoparticles with Surface-Enhanced Raman Scattering Spectroscopy and Microscopy
10:59

Author Spotlight: Tracking Electrochemistry on Single Nanoparticles with Surface-Enhanced Raman Scattering Spectroscopy and Microscopy

Published on: May 12, 2023

3.5K

Plasmonic tunnel junctions for single-molecule redox chemistry.

Bart de Nijs1, Felix Benz1, Steven J Barrow2

  • 1NanoPhotonics Centre, Cavendish Laboratory, Department of Physics, JJ Thompson Ave, University of Cambridge, Cambridge, CB3 0HE, UK.

Nature Communications
|October 24, 2017
PubMed
Summary

Researchers used surface-enhanced Raman spectroscopy to observe single-molecule chemical reactions. They found that controlling electron transport in nanoscale gaps allows real-time tracking of hot-electron-induced redox processes.

More Related Videos

All-electronic Nanosecond-resolved Scanning Tunneling Microscopy: Facilitating the Investigation of Single Dopant Charge Dynamics
11:33

All-electronic Nanosecond-resolved Scanning Tunneling Microscopy: Facilitating the Investigation of Single Dopant Charge Dynamics

Published on: January 19, 2018

10.3K
Monitoring Conformational Dynamics of Single Unmodified Proteins using Plasmonic Nanotweezers
09:33

Monitoring Conformational Dynamics of Single Unmodified Proteins using Plasmonic Nanotweezers

Published on: March 21, 2025

1.5K

Related Experiment Videos

Last Updated: Feb 20, 2026

Author Spotlight: Tracking Electrochemistry on Single Nanoparticles with Surface-Enhanced Raman Scattering Spectroscopy and Microscopy
10:59

Author Spotlight: Tracking Electrochemistry on Single Nanoparticles with Surface-Enhanced Raman Scattering Spectroscopy and Microscopy

Published on: May 12, 2023

3.5K
All-electronic Nanosecond-resolved Scanning Tunneling Microscopy: Facilitating the Investigation of Single Dopant Charge Dynamics
11:33

All-electronic Nanosecond-resolved Scanning Tunneling Microscopy: Facilitating the Investigation of Single Dopant Charge Dynamics

Published on: January 19, 2018

10.3K
Monitoring Conformational Dynamics of Single Unmodified Proteins using Plasmonic Nanotweezers
09:33

Monitoring Conformational Dynamics of Single Unmodified Proteins using Plasmonic Nanotweezers

Published on: March 21, 2025

1.5K

Area of Science:

  • Plasmonics and Nanophotonics
  • Surface Chemistry and Catalysis
  • Single-Molecule Spectroscopy

Background:

  • Coupled plasmonic hotspots in nanoscale gaps enhance optical fields for localized spectroscopy.
  • Non-radiative relaxation of plasmons generates hot charge carriers, driving chemical reactions.
  • Understanding hot-electron-induced processes is crucial for catalysis and redox studies.

Purpose of the Study:

  • To track hot-electron-induced chemical reduction processes in aromatic molecules.
  • To investigate the transition from coherent to hopping electron transport.
  • To enable real-time, single-molecule observation of redox processes.

Main Methods:

  • Utilizing nanoparticles positioned above a metallic surface to create nanoscale gaps.
  • Employing surface-enhanced Raman spectroscopy (SERS) for sensitive molecular detection.
  • Modulating tunnelling barrier height and dephasing strength to control electron transport.

Main Results:

  • Achieved near thousand-fold enhancement of incident fields within plasmonic hotspots.
  • Successfully tracked hot-electron-induced chemical reduction of various aromatic molecules.
  • Observed a transition from coherent to hopping electron transport with varied parameters.

Conclusions:

  • Hot-electron generation in nanoscale plasmonic cavities drives chemical transformations.
  • Electron transport dynamics (coherent vs. hopping) dictate observable redox processes.
  • Real-time, single-molecule monitoring of redox reactions is feasible using this technique.