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Tissue Engineering: Construction of a Multicellular 3D Scaffold for the Delivery of Layered Cell Sheets

Tissue Engineering: Construction of a Multicellular 3D Scaffold for the Delivery of Layered Cell Sheets

Published on: October 3, 2014

Multi-Material Tissue Engineering Scaffold with Hierarchical Pore Architecture.

Kathy Ye Morgan¹, Demetra Sklaviadis¹, Zachary L Tochka¹

¹Harvard-MIT Division of Health Sciences and Technology, David H. Koch Institute for Integrative Cancer Research, and Institute for Medical Engineering & Science, Massachusetts Institute of Technology, Cambridge, MA 02139, USA.

Advanced Functional Materials

|December 13, 2016

Summary

New polymer scaffolds with multiscale pores support heart tissue regeneration. These advanced materials promote cell alignment and perfusion, crucial for repairing damaged heart muscle.

Keywords:

endothelial cell heart cell microfluidic multiscale polymer

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Multi-Scale Modification of Metallic Implants With Pore Gradients, Polyelectrolytes and Their Indirect Monitoring In vivo

Published on: July 1, 2013

Area of Science:

Biomaterials Science
Tissue Engineering
Regenerative Medicine

Background:

Developing effective platforms for cardiac tissue regeneration is critical for treating heart muscle damage.
Existing materials often struggle to balance biodegradability, mechanical properties, and cellular integration.

Purpose of the Study:

To engineer multi-material polymer scaffolds with hierarchical pore architectures for cardiac tissue replacement.
To evaluate the suitability of poly(limonene thioether) (PLT32i) and poly(glycerol sebacate) (PGS) for vascular and parenchymal interfaces.

Main Methods:

Fabrication of scaffolds using poly(methyl methacrylate) (PMMA) spheres for hierarchical pore creation.
Utilizing poly(limonene thioether) (PLT32i) for slow degradation and poly(glycerol sebacate) (PGS) for rapid degradation.
Cellularization, assembly, and perfusion of scaffold templates with cardiac cells.

Main Results:

Hierarchical pore architecture successfully guided heart cell alignment and enabled robust perfusion.
Microscale pores enhanced cell retention and reduced scaffold material volume.
Scaffolds demonstrated potential for engineering spatially organized, contractile heart tissue.

Conclusions:

Multi-material polymer scaffolds with multiscale pores offer a promising platform for cardiac tissue engineering.
The designed pore architecture optimizes cell behavior and tissue integration.
This approach advances the development of functional cardiac muscle replacements.