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

Photochemical Electrocyclic Reactions: Stereochemistry01:26

Photochemical Electrocyclic Reactions: Stereochemistry

2.0K
The absorption of UV–visible light by conjugated systems causes the promotion of an electron from the ground state to the excited state. Consequently, photochemical electrocyclic reactions proceed via the excited-state HOMO rather than the ground-state HOMO. Since the ground- and excited-state HOMOs have different symmetries, the stereochemical outcome of electrocyclic reactions depends on the mode of activation; i.e., thermal or photochemical.
Selection Rules: Photochemical Activation
2.0K
Radical Reactivity: Overview01:11

Radical Reactivity: Overview

2.4K
Radicals, the highly reactive species, gain stability by undergoing three different reactions. The first reaction involves a radical-radical coupling, in which a radical combines with another radical, forming a spin‐paired molecule. The second reaction is between a radical and a spin‐paired molecule, generating a new radical and a new spin‐paired molecule. The third reaction is radical decomposition in a unimolecular reaction, forming a new radical and a spin‐paired...
2.4K

You might also read

Related Articles

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

Sort by
Same author

Toward a Comparable Reactivity Framework for Type I Photoinitiators in Photocleavage, Photopolymerization and Light-Driven Additive Manufacturing.

Journal of the American Chemical Society·2026
Same author

Biofunctionalized polymer semiconductors toward soft and stretchable transistor-based biosensors.

Science advances·2026
Same author

Macromolecules with Tunable Fluorescence via Photochemical Step-Growth Polymerization.

ACS macro letters·2026
Same author

Understanding Wavelength-Dependent Photopolymerizations via Nano-Second Resolved Transient Spectroscopy.

Journal of the American Chemical Society·2026
Same author

Following the formation of single-chain nanoparticles generated by interblock crosslinking within diblock copolymers: a Monte Carlo simulation study with adjustable interaction strength between the blocks.

Soft matter·2026
Same author

Solution-state nanoconfined aggregation and microstructure evolution in blends of conjugated polymers and elastomers.

Proceedings of the National Academy of Sciences of the United States of America·2026

Related Experiment Video

Updated: Nov 25, 2025

The Evolution of Silica Nanoparticle-polyester Coatings on Surfaces Exposed to Sunlight
10:27

The Evolution of Silica Nanoparticle-polyester Coatings on Surfaces Exposed to Sunlight

Published on: October 11, 2016

9.8K

Mapping Photochemical Reactivity Profiles on Surfaces.

Lukas Michalek1,2, Tim Krappitz1,2, Kai Mundsinger1,2

  • 1School of Chemistry and Physics, Queensland University of Technology (QUT), 2 George Street, QLD 4000, Brisbane, Australia.

Journal of the American Chemical Society
|December 18, 2020
PubMed
Summary
This summary is machine-generated.

This study maps photochemical reactivity on surfaces. Wavelength-resolved reactivity profiles closely matched surface absorption spectra, unlike solution-phase behavior for tetrazole and o-methylbenzaldehyde.

More Related Videos

Analysis of Complex Molecules and Their Reactions on Surfaces by Means of Cluster-Induced Desorption/Ionization Mass Spectrometry
07:53

Analysis of Complex Molecules and Their Reactions on Surfaces by Means of Cluster-Induced Desorption/Ionization Mass Spectrometry

Published on: March 1, 2020

7.6K
Selective Area Modification of Silicon Surface Wettability by Pulsed UV Laser Irradiation in Liquid Environment
08:48

Selective Area Modification of Silicon Surface Wettability by Pulsed UV Laser Irradiation in Liquid Environment

Published on: November 9, 2015

8.5K

Related Experiment Videos

Last Updated: Nov 25, 2025

The Evolution of Silica Nanoparticle-polyester Coatings on Surfaces Exposed to Sunlight
10:27

The Evolution of Silica Nanoparticle-polyester Coatings on Surfaces Exposed to Sunlight

Published on: October 11, 2016

9.8K
Analysis of Complex Molecules and Their Reactions on Surfaces by Means of Cluster-Induced Desorption/Ionization Mass Spectrometry
07:53

Analysis of Complex Molecules and Their Reactions on Surfaces by Means of Cluster-Induced Desorption/Ionization Mass Spectrometry

Published on: March 1, 2020

7.6K
Selective Area Modification of Silicon Surface Wettability by Pulsed UV Laser Irradiation in Liquid Environment
08:48

Selective Area Modification of Silicon Surface Wettability by Pulsed UV Laser Irradiation in Liquid Environment

Published on: November 9, 2015

8.5K

Area of Science:

  • Photochemistry
  • Surface Science
  • Polymer Chemistry

Background:

  • Photoreactive group behavior in solution often differs from their absorption spectra.
  • The relationship between surface absorption spectra and reactivity is largely unexplored.
  • Understanding surface photochemistry is crucial for applications like surface functionalization.

Purpose of the Study:

  • To develop a methodology for mapping photochemical reactivity on surfaces.
  • To investigate the surface reactivity of o-methylbenzaldehyde and tetrazole as ligation partners for maleimide-functionalized polymers.
  • To compare surface reactivity profiles with surface absorption spectra.

Main Methods:

  • Tethering o-methylbenzaldehyde and tetrazole moieties to surfaces.
  • Utilizing maleimide-functionalized polymers for ligation.
  • Irradiating surfaces at specific wavelengths (e.g., 330 nm) and analyzing reactivity.
  • Measuring grafting densities and surface coverage.

Main Results:

  • Tetrazole-functionalized surfaces showed rapid ligation and high grafting densities.
  • o-Methylbenzaldehyde-functionalized substrates required longer irradiation times and yielded lower surface coverage.
  • Wavelength-resolved reactivity profiles directly correlated with surface absorption spectra.
  • Observed surface reactivity contradicted previously reported solution-phase red shifts.

Conclusions:

  • The developed methodology effectively maps surface photochemical reactivity.
  • Surface absorption spectra are reliable predictors of photochemical reactivity on surfaces.
  • This work provides critical insights into surface-based photochemical ligation reactions.