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Updated: May 7, 2026

Interlinked Macroporous 3D Scaffolds from Microgel Rods

Interlinked Macroporous 3D Scaffolds from Microgel Rods

Published on: June 16, 2022

Clickable Poly(ethylene glycol)-Microsphere-Based Cell Scaffolds.

Peter K Nguyen¹, Christopher G Snyder, Jason D Shields

¹Department of Biomedical Engineering, Campus Box 1907, One Brookings Dr., Washington University, St. Louis, MO 63130, USA.

Macromolecular Chemistry and Physics

|September 21, 2013

Summary

This summary is machine-generated.

New clickable poly(ethylene glycol) (PEG) microspheres create advanced cell scaffolds. This method uses aqueous systems for easy handling, high cell viability, and tunable architecture, outperforming traditional hydrogels.

Keywords:

biomaterials click chemistry hydrogels microsphere scaffolds poly(ethylene glycol)

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Published on: September 22, 2023

Area of Science:

Biomaterials Science
Tissue Engineering
Polymer Chemistry

Background:

Microsphere-based scaffolds offer advantages over bulk hydrogels for cell encapsulation.
Developing novel methods for creating cell scaffolds with controlled architecture is crucial for tissue engineering.
Clickable poly(ethylene glycol) (PEG) derivatives provide versatile building blocks for advanced biomaterials.

Purpose of the Study:

To develop a novel method for producing microsphere-based scaffolds for cell encapsulation using clickable PEG derivatives.
To investigate the use of sequential aqueous two-phase systems for scaffold fabrication without organic solvents or surfactants.
To evaluate the viability of encapsulated endothelial cells and the handling properties of the resulting scaffolds.

Main Methods:

Utilized clickable poly(ethylene glycol) (PEG) derivatives in two sequential aqueous two-phase systems.
Employed sodium sulfate for phase separation and rapid gelation to form PEG microspheres.
Washed and deswollen microspheres in dextran solutions with encapsulated cells to form scaffolds.

Main Results:

Successfully produced microsphere-based scaffolds using a solvent-free and surfactant-free aqueous system.
Achieved tightly packed, yet porous, scaffolds that are easily handled.
Demonstrated high viability of endothelial cells encapsulated during scaffold formation.
Highlighted the ability to manipulate scaffold architecture, offering advantages over bulk hydrogels.

Conclusions:

Clickable PEG-microsphere-based scaffolds represent a significant advancement in cell encapsulation technology.
The developed method provides a versatile platform for creating advanced cell scaffolds with tunable properties.
This approach opens new possibilities for tissue engineering and regenerative medicine applications.