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Fully biodegradable self-rolled polymer tubes: a candidate for tissue engineering scaffolds.

Svetlana Zakharchenko¹, Evgeni Sperling, Leonid Ionov

¹Leibniz Institute of Polymer Research Dresden, Dresden, Germany.

Biomacromolecules

|April 29, 2011

Summary

Researchers developed biodegradable self-rolled tubes from polysuccinimide and polycaprolactone. These biocompatible tubes can encapsulate cells, offering potential for biomedical applications.

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Area of Science:

Biomaterials Science
Polymer Chemistry
Biomedical Engineering

Background:

Biodegradable polymers are crucial for medical devices and drug delivery systems.
Polysuccinimide (PSI) and polycaprolactone (PCL) are biocompatible, industrially produced, and approved for biomedical use.
Hydrolysis of PSI in aqueous environments can induce structural changes.

Purpose of the Study:

To develop a fabrication method for fully biodegradable self-rolled tubes.
To investigate the potential of PSI/PCL bilayers for creating tubular structures.
To demonstrate the encapsulation capability of these self-rolled tubes.

Main Methods:

Fabrication of patterned polysuccinimide/polycaprolactone bilayers.
Induction of bilayer rolling via hydrolysis of polysuccinimide in a physiological buffer.
Encapsulation of yeast cells within the formed tubes.

Main Results:

Successfully fabricated fully biodegradable self-rolled tubes from PSI/PCL bilayers.
Demonstrated that hydrolysis of PSI in a physiological buffer induces tube formation.
Showcased the ability to encapsulate yeast cells within the self-rolled tubes.

Conclusions:

The developed approach enables the fabrication of biodegradable self-rolled tubes with potential biomedical applications.
The controlled hydrolysis of PSI is key to the self-rolling mechanism.
These tubes show promise for cell encapsulation and delivery systems.