Multifunctional GO-Based Hydrogels with Various Inorganic Additives for Oral Health and Photodynamic Activation.

Area of Science:

• Materials Science
• Biomedical Engineering
• Nanotechnology

Background:

• Graphene oxide (GO) hydrogels offer potential for regenerative medicine.
• Enhancing hydrogel properties requires incorporating multifunctional nanoparticles.
• Photocatalytic activity can improve therapeutic outcomes.

Purpose of the Study:

• To synthesize and characterize GO-based hydrogels reinforced with multiple nanoparticles (HA, TiO2, ZnO, SiO2, Ag, g-C3N4).
• To evaluate the structural, mechanical, biological, and photocatalytic performance of these composite hydrogels.
• To explore their potential for tissue regeneration and biofunctional technologies.

Main Methods:

• Synthesis of graphene oxide (GO)-based hydrogels with various inorganic nanoparticles.
• Characterization using FTIR, UV-Vis spectroscopy, SEM, and metallographic optical microscopy (MOM).
• Assessment of antibacterial activity and photodynamic therapy (PDT) using a 420 nm laser.

Main Results:

• Confirmed chemical interactions and uniform nanoparticle distribution within the hydrogel matrix.
• Demonstrated enhanced structural integrity and optimized internal architecture for bioactivity.
• Showcased significant antibacterial inhibition, amplified by laser-activated photodynamic therapy, indicating synergistic effects.

Conclusions:

• The developed multifunctional hydrogels exhibit robust mechano-structural properties.
• Promising biological activity and enhanced antibacterial efficacy via photocatalytic activation.
• Potential for innovative biomedical applications in regenerative medicine and biofunctional technologies.