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Updated: Feb 24, 2026

Nanosponge Tunability in Size and Crosslinking Density

Nanosponge Tunability in Size and Crosslinking Density

Published on: August 4, 2017

Nanosponge Tunability in Size and Crosslinking Density.

Laken L Kendrick-Williams¹, Eva Harth²

¹Chemistry Department, Vanderbilt University.

Journal of Visualized Experiments : Jove

|August 16, 2017

Summary

This summary is machine-generated.

Researchers developed a method to create tunable polyester nanosponges with pendant epoxide groups. These degradable nanosponges are ideal for controlled drug delivery of hydrophobic small molecules.

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

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Published on: January 24, 2025

Area of Science:

Polymer Chemistry
Materials Science
Nanotechnology

Background:

Developing functional polymers for drug delivery is crucial.
Controlled synthesis of nanoparticles with specific dimensions is challenging.
Polyester-based nanostructures offer potential for controlled release applications.

Purpose of the Study:

To synthesize linear polyesters with pendant epoxide functionality.
To incorporate these functionalized polymers into nanosponges with controlled dimensions.
To evaluate the potential of these nanosponges for small molecule drug encapsulation and controlled release.

Main Methods:

Synthesis of functionalized lactones.
Ring-opening copolymerization of valerolactone (VL) and allyl-valerolactone (AVL).
Post-polymerization modification to introduce epoxide moieties.
Epoxy-amine chemistry for nanoparticle formation.
Transmission electron microscopy (TEM) for nanosponge characterization.

Main Results:

Successfully synthesized linear polyesters with pendant epoxide groups.
Created tunable nanosponges with controlled dimensions via epoxy-amine chemistry.
Demonstrated the ability to control nanosponge size and crosslinking density.
Characterized nanosponge dimensions and distribution using TEM.

Conclusions:

This protocol enables the creation of highly tunable polyesters for nanoparticle fabrication.
The resulting nanosponges are suitable for small molecule drug encapsulation.
The hydrolytic and enzymatic degradability of the polyester backbone allows for controlled release of hydrophobic drugs.