Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

Ion Exchange

Ion Exchange

Ion exchange chromatography separates charged molecules from a solution by reversibly exchanging them with mobile, or 'active', ions associated with the oppositely charged stationary phase. This method can be used to separate ions, soften and deionize water, and purify solutions. The polymers comprising the ion-exchange column are high-molecular-weight and chemically stable polymers, crosslinked to be porous and essentially insoluble. They are also functionalized with either acidic or...

You might also read

Related Articles

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

Sort by

Same author

Force Reveals Hidden Conformations and Dissociation Pathways in Individual π-Interacting Dimers.

Angewandte Chemie (International ed. in English)·2026

Same author

Mechanochemical assembly of polymer-cyclodextrin inclusion complexes <i>via</i> twin-screw extrusion for large-scale production and material reinforcement.

Chemical communications (Cambridge, England)·2026

Same author

Light-Programmable Morphology in Photothermal Polyurethanes Based on Stenhouse Salt as Photothermal Agent.

Journal of the American Chemical Society·2026

Same author

Bioinspired Strategies for Directional Water Transport in Asymmetric Membranes.

ACS applied polymer materials·2026

Same author

Photoresponsive Metallo-Supramolecular Systems Constructed From a Bidentate Ligand.

Macromolecular rapid communications·2026

Same author

Thermoresponsive Gels Based on Cross-Linked Polymer-Grafted Cellulose Nanocrystals.

Biomacromolecules·2026

Search research articles

Related Experiment Video

Updated: Dec 27, 2025

A 'Plug and Play' Method to Create Water-dispersible Nanoassemblies Containing an Amphiphilic Polymer, Organic Dyes and Upconverting Nanoparticles

A 'Plug and Play' Method to Create Water-dispersible Nanoassemblies Containing an Amphiphilic Polymer, Organic Dyes and Upconverting Nanoparticles

Published on: November 14, 2015

Mechanochromic Polymers Based on Microencapsulated Solvatochromic Dyes.

Céline Calvino^1,2, Emma Henriet^1,3, Livius F Muff¹

¹Adolphe Merkle Institute, University of Fribourg, Chemin des Verdiers 4, Fribourg, CH-1700, Switzerland.

Macromolecular Rapid Communications

|March 6, 2020

Summary

This summary is machine-generated.

Researchers developed smart polymers with built-in optical sensors. These mechanochromic materials change color when damaged, enabling quantitative assessment of material integrity.

Keywords:

mechanochromic polymers mechanoresponsive materials microcapsules solvatochromic dyes

More Related Videos

Preparation of Polyoxometalate-based Photo-responsive Membranes for the Photo-activation of Manganese Oxide Catalysts

Preparation of Polyoxometalate-based Photo-responsive Membranes for the Photo-activation of Manganese Oxide Catalysts

Published on: August 7, 2018

Fabrication of Polymer Microspheres for Optical Resonator and Laser Applications

Fabrication of Polymer Microspheres for Optical Resonator and Laser Applications

Published on: June 2, 2017

Related Experiment Videos

Last Updated: Dec 27, 2025

A 'Plug and Play' Method to Create Water-dispersible Nanoassemblies Containing an Amphiphilic Polymer, Organic Dyes and Upconverting Nanoparticles

A 'Plug and Play' Method to Create Water-dispersible Nanoassemblies Containing an Amphiphilic Polymer, Organic Dyes and Upconverting Nanoparticles

Published on: November 14, 2015

Preparation of Polyoxometalate-based Photo-responsive Membranes for the Photo-activation of Manganese Oxide Catalysts

Preparation of Polyoxometalate-based Photo-responsive Membranes for the Photo-activation of Manganese Oxide Catalysts

Published on: August 7, 2018

Fabrication of Polymer Microspheres for Optical Resonator and Laser Applications

Fabrication of Polymer Microspheres for Optical Resonator and Laser Applications

Published on: June 2, 2017

Area of Science:

Materials Science
Polymer Chemistry
Nanotechnology

Background:

Polymers with integrated sensors offer optical warnings for mechanical stress.
Mechanochromic behavior in polymers is often achieved using dye-filled microcapsules that release cargo upon shell damage.
This released dye undergoes a chromogenic response due to chemical or physical changes.

Purpose of the Study:

To develop fluorescent poly(urea-formaldehyde) microcapsules containing a solvatochromic cyanostilbene dye.
To integrate these microcapsules into various polymer matrices.
To enable quantitative damage assessment in polymers via mechanochromic responses.

Main Methods:

Preparation of fluorescent poly(urea-formaldehyde) microcapsules encapsulating a solvatochromic cyanostilbene dye solution.
Incorporation of these microcapsules into different polymer matrices.
Investigating two damage-sensing mechanisms: dye release upon capsule rupture and solvent release from capsules to trigger dye response.

Main Results:

Successful preparation and integration of dye-loaded microcapsules into polymers.
Demonstrated mechanochromic behavior through fluorescence color change upon damage-induced dye release and solvent diffusion.
Achieved ratiometric sensing by utilizing intact capsules or unexposed dye as an internal reference.

Conclusions:

Developed a versatile method for creating mechanochromic polymers using dye-filled microcapsules.
The ratiometric sensing capability allows for quantitative evaluation of material damage.
This technology holds promise for structural health monitoring and damage detection in polymeric materials.