Bioactive Three-Dimensional Chitosan-Based Scaffolds Modified with Poly(dopamine)/CBD@Pt/Au/PVP Nanoparticles as...

Area of Science:

• Biomaterials Science
• Regenerative Medicine
• Nervous Tissue Engineering

Background:

• Nervous tissue engineering offers a promising approach for treating neurological diseases like spinal cord injuries.
• Current nerve guide conduits (NGCs) often lack bioactivity and external stimulation capabilities, limiting their therapeutic potential.
• Developing advanced, bioactive biomaterials is crucial for improving functional recovery in patients with nervous system injuries.

Purpose of the Study:

• To develop novel, bioactive, chitosan-based 3D materials for nerve guide conduits (NGCs).
• To functionalize these NGCs with poly(dopamine), Au/Pt coated with PVP nanoparticles, and cannabidiol.
• To evaluate the biocompatibility and potential of these new NGCs for nervous tissue engineering applications.

Main Methods:

• Chitosan-based 3D nerve guide conduits (NGCs) were synthesized using microwave-assisted conditions.
• Materials were characterized for chemical structure (FT-IR), morphology, swelling behavior, and biodegradation (collagenase, lysozyme).
• Cytotoxicity was assessed using the 1321N1 human astrocytoma cell line to confirm biocompatibility.

Main Results:

• Novel bioactive chitosan-based NGCs were successfully prepared and modified with poly(dopamine), Au/Pt-PVP nanoparticles, and cannabidiol.
• The materials exhibited favorable morphology, swelling properties, and susceptibility to biodegradation.
• Cytotoxicity studies confirmed the biocompatibility of the developed NGCs with the 1321N1 cell line.

Conclusions:

• The developed chitosan-based NGCs represent a promising new class of bioactive biomaterials for nervous tissue engineering.
• These NGCs demonstrate good biocompatibility and potential for promoting nerve regeneration.
• Further research into these advanced materials could lead to improved treatments for neurological injuries.