Graphene Oxide-Modified Titanium Dioxide Nanotubes Promote Schwann Cell Function and Neurotrophic Factor Expression.

Area of Science:

• Biomaterials Science
• Tissue Engineering
• Nanotechnology

Background:

• Schwann cells are crucial for peripheral nerve regeneration.
• Titanium dioxide nanotubes (TNTs) are explored for biomedical applications.
• Graphene oxide (GO) offers unique properties for surface modification.

Purpose of the Study:

• To investigate the impact of TNT-GO coatings on Schwann cell biological activity.
• To assess TNT-GO's potential for dental implant surface modification.
• To evaluate TNT-GO for peripheral nerve regeneration applications.

Main Methods:

• TNTs fabricated via anodic oxidation; GO deposited electrochemically.
• Surface characterization using SEM, Raman spectroscopy, AFM, XRD, and contact angle.
• Schwann cell viability, proliferation, adhesion, and neurotrophic factor expression analyzed.

Main Results:

• TNT-GO surfaces demonstrated improved hydrophilicity and biocompatibility.
• Enhanced Schwann cell proliferation, adhesion, and spreading observed on TNT-GO.
• Significantly increased nerve growth factor (NGF) and glial cell line-derived neurotrophic factor (GDNF) expression.

Conclusions:

• TNT-GO coatings effectively promote Schwann cell functions.
• This material shows promise for enhancing peri-implant nerve regeneration.
• TNT-GO represents a novel strategy for improving dental implant osseoperception.