Graphene composites with dental and biomedical applicability

Area of Science:

• Biomaterials Science
• Materials Engineering
• Nanotechnology

Background:

• Few-layer graphene (FLG) is biocompatible and enhances biomaterial properties.
• Graphene's high mechanical strength is ideal for reinforcing dental polymers.
• Scalable production of FLG is crucial for commercial dental applications.

Purpose of the Study:

• To develop a simple, large-scale method for producing few-layer graphene (FLG).
• To fabricate and evaluate graphene-dental polymer composites using the produced FLG.
• To assess the impact of FLG on the physio-mechanical properties of dental composites.

Main Methods:

• Developed a scalable method to produce FLG from commercially available multi-layer graphene (MLG).
• Fabricated graphene-dental polymer composites incorporating low concentrations of FLG (approx. 0.2 wt%).
• Tested the physio-mechanical properties of the resultant composites, focusing on compressive strength and modulus.

Main Results:

• Successfully produced large quantities of FLG using a simple method.
• Graphene-modified dental composites exhibited significant improvements in mechanical properties.
• Mean compressive strength increased by 27% and mean compressive modulus by 22% at low FLG concentrations.

Conclusions:

• A new, cost-effective, and scalable method for FLG production was established.
• Incorporating FLG into dental polymers significantly enhances their mechanical performance.
• The developed graphene-dental composites show promising potential for commercial dental applications.