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Generation of 3-D Collagen-based Hydrogels to Analyze Axonal Growth and Behavior During Nervous System Development
Published on: June 25, 2019
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Dual-component collagenous peptide/reactive oligomer hydrogels as potential nerve guidance materials - from
C Kohn1, J M Klemens2, C Kascholke1
1Institute of Pharmacy, Pharmaceutical Technology, Leipzig University, 04317 Leipzig, Germany. mhacker@uni-leipzig.de.
Biomaterials Science
|October 11, 2016
Summary
New hydrogels enhance peripheral nerve regeneration (PNR) by creating advanced nerve guidance conduits (NGCs). This biomaterial innovation improves cell attachment and conduit fabrication for better PNR outcomes.
Area of Science:
- Biomaterials Science
- Tissue Engineering
- Neuroscience
Background:
- Peripheral nerve regeneration (PNR) faces clinical challenges requiring improved biomaterials for nerve guidance conduits (NGCs).
- Current NGCs often lack the necessary biological cues and optimal fabrication methods to promote effective nerve repair.
Purpose of the Study:
- To develop a novel dual-component hydrogel system for fabricating advanced NGCs.
- To optimize hydrogel properties for continuous processing and improved PNR.
Main Methods:
- Formulation of a dual-component hydrogel via cross-linking maleic anhydride groups with collagen amine functionalities.
- Optimization of gelation base for double syringe processing and static mixer use.
- Chemical derivatization of hydrogels with cationic moieties and fabrication of tubular conduits using a molding strategy.
Main Results:
- Achieved improved cross-linking extent and homogeneous monolith fabrication.
- Demonstrated maintained network stability in functionalized hydrogels.
- Showcased enhanced in vitro cell attachment and spreading due to incorporated cationic moieties, independent of mechanical stiffness.
- Successfully fabricated flexible tubular conduits with tunable dimensions and chemical patterns.
Conclusions:
- The developed hydrogel system offers a promising platform for next-generation NGCs.
- Integrated chemical cues within the hydrogel conduits can significantly enhance PNR.
- This approach addresses key limitations in current NGC technology for improved clinical outcomes.
