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Graphene-Based Composites for Biomedical Applications: Surface Modification for Enhanced Antimicrobial Activity and
Rita Teixeira-Santos1,2, Samuel Belo1,2, Rita Vieira1,2
1LEPABE-Laboratory for Process Engineering, Environment, Biotechnology and Energy, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal.
Biomolecules
|November 25, 2023
Summary
Surface modification of graphene (GN) enhances its medical applications. Composites with antimicrobials show improved efficacy, while those with polymers offer better biocompatibility for tissue interfaces.
Area of Science:
- Materials Science
- Biomedical Engineering
- Nanotechnology
Background:
- Graphene (GN) and its derivatives possess unique properties making them promising for medical applications.
- Surface modification of GN is crucial for enhancing its functionality and biocompatibility.
- Research focuses on incorporating antimicrobials, metals, polymers, and natural compounds onto GN surfaces.
Purpose of the Study:
- To review recent advancements in graphene composite formulations for biomedical applications.
- To evaluate the antimicrobial, antibiofilm, and biocompatibility properties of modified graphene materials.
- To highlight the potential and challenges of graphene-based materials in medicine.
Main Methods:
- Review of recent scientific literature on graphene composite modifications.
- Analysis of studies focusing on antimicrobial and antibiofilm properties.
- Evaluation of research on the biocompatibility of graphene materials with human tissues.
Main Results:
- Graphene (GN) surface modification with antimicrobial agents (e.g., silver, chitosan) significantly improves antimicrobial performance.
- Composites of GN with non-natural polymers enhance biocompatibility for tissue integration, albeit with reduced antimicrobial activity.
- Modified GN materials demonstrate considerable potential for various biomedical uses.
Conclusions:
- Surface-modified graphene materials offer enhanced antimicrobial and biocompatibility profiles for medical applications.
- Further research on safety, long-term effects, and stability is essential for clinical translation.
- Graphene composites hold significant promise but require continued development for widespread medical adoption.

