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

Aryldiazonium Salts to Azo Dyes: Diazo Coupling01:11

Aryldiazonium Salts to Azo Dyes: Diazo Coupling

3.7K
The reaction of weakly electrophilic aryldiazonium (also called arenediazonium) salts with highly activated aromatic compounds leads to the formation of products with an —N=N— link, called an azo linkage. This reaction, presented in Figure 1, is known as diazo coupling and occurs without the loss of the nitrogen atoms of the aryldiazonium salt. Highly activated aromatic compounds such as phenols or arylamines favor the diazo coupling reaction. The coupling generally occurs at the para...
3.7K

You might also read

Related Articles

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

Sort by
Same author

Solid-state sensors based on Eu<sup>3+</sup>-containing supramolecular polymers with luminescence colour switching capability.

Dalton transactions (Cambridge, England : 2003)·2018
Same author

Patterning of perovskite-polymer films by wrinkling instabilities.

Soft matter·2017
Same author

A critical review of the current knowledge regarding the biological impact of nanocellulose.

Journal of nanobiotechnology·2016
Same author

Palliative balloon dilation of pulmonic stenosis in a dog with tetralogy of Fallot.

Journal of veterinary cardiology : the official journal of the European Society of Veterinary Cardiology·2016
Same author

Characterizing nanoparticles in complex biological media and physiological fluids with depolarized dynamic light scattering.

Nanoscale·2015
Same author

In vitro dosimetry of agglomerates.

Nanoscale·2014

Related Experiment Video

Updated: Mar 1, 2026

Light-mediated Formation and Patterning of Hydrogels for Cell Culture Applications
10:45

Light-mediated Formation and Patterning of Hydrogels for Cell Culture Applications

Published on: September 29, 2016

13.6K

Light-responsive azo-containing organogels.

M A Ayer1, S Schrettl, S Balog

  • 1Adolphe Merkle Institute, University of Fribourg, Chemin des Verdiers 4, 1700 Fribourg, Switzerland. christoph.weder@unifr.ch.

Soft Matter
|May 27, 2017
PubMed
Summary

Azo compounds create novel stimuli-responsive organogels from poly(vinyl alcohol). UV light triggers a solid-to-liquid phase transition, enabling on-demand de-bonding adhesives.

More Related Videos

Synthesis of Stimuli-responsive Nanogels using Aqueous One-step Crosslinking and Co-nanopolymerization
06:26

Synthesis of Stimuli-responsive Nanogels using Aqueous One-step Crosslinking and Co-nanopolymerization

Published on: January 24, 2025

2.0K
Bioluminescent Optogenetics 2.0: Harnessing Bioluminescence to Activate Photosensory Proteins In Vitro and In Vivo
07:19

Bioluminescent Optogenetics 2.0: Harnessing Bioluminescence to Activate Photosensory Proteins In Vitro and In Vivo

Published on: August 4, 2021

5.4K

Related Experiment Videos

Last Updated: Mar 1, 2026

Light-mediated Formation and Patterning of Hydrogels for Cell Culture Applications
10:45

Light-mediated Formation and Patterning of Hydrogels for Cell Culture Applications

Published on: September 29, 2016

13.6K
Synthesis of Stimuli-responsive Nanogels using Aqueous One-step Crosslinking and Co-nanopolymerization
06:26

Synthesis of Stimuli-responsive Nanogels using Aqueous One-step Crosslinking and Co-nanopolymerization

Published on: January 24, 2025

2.0K
Bioluminescent Optogenetics 2.0: Harnessing Bioluminescence to Activate Photosensory Proteins In Vitro and In Vivo
07:19

Bioluminescent Optogenetics 2.0: Harnessing Bioluminescence to Activate Photosensory Proteins In Vitro and In Vivo

Published on: August 4, 2021

5.4K

Area of Science:

  • Polymer Chemistry
  • Materials Science

Background:

  • Azo compounds are common radical initiators but seldom used in stimuli-responsive macromolecular materials.
  • Stimuli-responsive materials offer dynamic control over material properties.

Purpose of the Study:

  • To develop novel stimuli-responsive organogels using azo-based cross-linkers.
  • To explore the de-bonding-on-demand capabilities of these materials for adhesive applications.

Main Methods:

  • Synthesis of an azo-based cross-linker.
  • Reaction of the cross-linker with poly(vinyl alcohol) to form organogels.
  • Investigation of material response to UV irradiation.

Main Results:

  • Successfully synthesized azo-based cross-linked poly(vinyl alcohol) organogels.
  • UV light irradiation induced de-cross-linking, leading to a reversible solid-to-liquid phase transition.
  • Demonstrated potential for creating model adhesives with on-demand de-bonding features.

Conclusions:

  • Azo compounds can be effectively utilized as stimuli-responsive cross-linkers in polymer networks.
  • The developed organogels exhibit tunable properties responsive to UV light.
  • This approach provides a foundation for designing advanced materials with controlled adhesion and release.