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  4. Improved Physiochemical Properties of Chitosan@PCL Nerve Conduits by Natural Molecule Crosslinking
 
research article

Improved Physiochemical Properties of Chitosan@PCL Nerve Conduits by Natural Molecule Crosslinking

Bianchini, Marta
•
Zinno, Ciro
•
Micera, Silvestro  
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December 1, 2023
Biomolecules

Nerve conduits may represent a valuable alternative to autograft for the regeneration of long-gap damages. However, no NCs have currently reached market approval for the regeneration of limiting gap lesions, which still represents the very bottleneck of this technology. In recent years, a strong effort has been made to envision an engineered graft to tackle this issue. In our recent work, we presented a novel design of porous/3D-printed chitosan/poly-epsilon-caprolactone conduits, coupling freeze drying and additive manufacturing technologies to yield conduits with good structural properties. In this work, we studied genipin crosslinking as strategy to improve the physiochemical properties of our conduit. Genipin is a natural molecule with very low toxicity that has been used to crosslink chitosan porous matrix by binding the primary amino group of chitosan chains. Our characterization evidenced a stabilizing effect of genipin crosslinking towards the chitosan matrix, with reported modified porosity and ameliorated mechanical properties. Given the reported results, this method has the potential to improve the performance of our conduits for the regeneration of long-gap nerve injuries.

  • Details
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Type
research article
DOI
10.3390/biom13121712
Web of Science ID

WOS:001130507400001

Author(s)
Bianchini, Marta
Zinno, Ciro
Micera, Silvestro  
Riva, Eugenio Redolfi
Date Issued

2023-12-01

Publisher

MDPI

Published in
Biomolecules
Volume

13

Issue

12

Article Number

1712

Subjects

Life Sciences & Biomedicine

•

Chitosan

•

Genipin

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Nerve Conduit

•

Tissue Engineering

•

Nerve Regeneration

Editorial or Peer reviewed

REVIEWED

Written at

EPFL

EPFL units
TNE  
FunderGrant Number

Ministry of University and Research (MUR)

Available on Infoscience
February 20, 2024
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/204829
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