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Updated: Apr 14, 2026
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Graphene Coatings for Biomedical Implants
Published on: March 1, 2013
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Mechanical Reliability and Biocompatibility of Graphene-Modified Photocurable Resins for Additive Manufacturing:
Sara Lopez de Armentia1, Victor Manuel Villapún2, Yolanda Ballesteros1
1Institute for Research in Technology/Mechanical Engineering Department, Universidad Pontificia Comillas, Alberto Aguilera 25, 28015 Madrid, Spain.
ACS Omega
|April 13, 2026
Summary
Graphene oxide (GO) enhances acrylic resin strength for 3D-printed biomedical parts but reduces reliability. Post-printing washing improves biocompatibility, crucial for regenerative medicine applications.
Area of Science:
- Biomaterials Engineering
- Additive Manufacturing
- Nanotechnology
Background:
- Stereolithography enables intricate small-scale part fabrication for biomedical uses like prostheses and scaffolds.
- High mechanical reliability and predictable performance are critical for safety and functionality in biomedical products.
Purpose of the Study:
- To evaluate the mechanical reliability and biocompatibility of photocurable acrylic resins modified with graphene (G) and graphene oxide (GO).
- To address limitations in current materials for biomedical applications requiring enhanced safety and performance.
Main Methods:
- Mechanical testing and Weibull distribution modeling were employed to assess material properties.
- Biocompatibility was evaluated through postprinting washing to reduce cytotoxic leaching and cell viability assays.
Main Results:
- Graphene oxide significantly enhanced characteristic strength but decreased reliability (reduced Weibull modulus).
- Postprinting washing improved cell viability (>90%) but slightly decreased compression strength and increased variability.
- GO-modified resins showed superior mechanical and biocompatibility profiles over G-modified resins.
Conclusions:
- Graphene oxide modification offers a promising route to enhance mechanical properties and biocompatibility of resins for biomedical applications.
- Optimizing postprinting processes is key to balancing mechanical reliability and biocompatibility for safe human-body contact in regenerative medicine.
