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Polymers

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The word polymer is derived from the Greek words “poly” which means “many” and “mer” which means “parts”. Polymers are long chains of molecules composed of repeating units of smaller molecules, known as monomers. They either occur naturally, such as DNA and proteins, or can be constructed synthetically, like plastics. They have varied structural characteristics, such as linear chains, branched chains, or complex networks, that contribute to the...

Polymers

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Related Experiment Video

Updated: Jan 31, 2026

Author Spotlight: Advancing SERS Technology: Au@Carbon Dot Nanoprobes for Label-Free Analysis and Imaging

Author Spotlight: Advancing SERS Technology: Au@Carbon Dot Nanoprobes for Label-Free Analysis and Imaging

Published on: June 9, 2023

Fluorescent Self-Healing Carbon Dot/Polymer Gels.

Sagarika Bhattacharya¹, Ravindra Suresh Phatake¹, Shiran Nabha Barnea²

¹Department of Chemistry , Ben Gurion University of the Negev , Beer Sheva 84105 , Israel.

|January 8, 2019

Summary

Researchers developed multicolor, fluorescent self-healing gels using carbon dots and polyethylenimine. These dynamic covalent gels exhibit remarkable self-healing, mechanical strength, and tunable properties, enabling multicolor light emission.

Keywords:

aldehydes carbon dots dynamic covalent bonds fluorescent gels imines self-healing gels

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Engineering Molecular Recognition with Bio-mimetic Polymers on Single Walled Carbon Nanotubes

Engineering Molecular Recognition with Bio-mimetic Polymers on Single Walled Carbon Nanotubes

Published on: January 10, 2017

Area of Science:

Materials Science
Polymer Chemistry
Nanotechnology

Background:

Self-healing materials are crucial for extending product lifespan and reducing waste.
Dynamic covalent chemistry offers a pathway to create adaptable and robust polymer networks.
Carbon dots (CDs) are emerging nanomaterials with tunable optical properties and versatile surface chemistry.

Purpose of the Study:

To construct novel multicolor, fluorescent self-healing gels.
To investigate the structure-property relationships of these gels.
To explore their application in light-emitting devices.

Main Methods:

Synthesized carbon dots from aldehyde precursors.
Reacted carbon dots with branched polyethylenimine via Schiff base chemistry.
Characterized gel properties, including self-healing, mechanical strength, viscoelasticity, and fluorescence.

Main Results:

Successfully fabricated multicolor, fluorescent self-healing gels.
Demonstrated excellent self-healing capabilities and high mechanical strength due to dynamic imine bonds.
Showcased tunable viscoelastic properties by adjusting the carbon dot to polymer ratio.
Utilized distinct fluorescence emissions for fabricating multicolor and white light emitters.

Conclusions:

The developed gels possess a unique combination of self-healing, mechanical robustness, and tunable optical properties.
The dynamic imine bonds are key to achieving these advanced functionalities.
These materials hold promise for applications in advanced light-emitting technologies and smart materials.