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Related Experiment Video

Updated: Oct 29, 2025

Graphene Coatings for Biomedical Implants
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Graphene Nanocoating: High Quality and Stability upon Several Stressors.

V Rosa1,2, R Malhotra1, S V Agarwalla1

  • 1Faculty of Dentistry, National University of Singapore, Singapore.

Journal of Dental Research
|July 13, 2021
PubMed
Summary

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Graphene nanocoating (GN) on titanium implants shows excellent structural integrity and anti-inflammatory properties. This durable coating resists harsh conditions and biofilms, promising better bone integration and fewer implant diseases.

Area of Science:

  • Biomaterials Science
  • Nanotechnology
  • Dental and Orthopedic Implants

Background:

  • Titanium implants face challenges with slow osseointegration and lack of antimicrobial properties.
  • Surface modifications on implants can degrade in challenging biological environments.
  • Graphene nanocoating (GN) offers potential benefits like antiadhesion and enhanced bone formation but its durability is unknown.

Purpose of the Study:

  • To evaluate the structural integrity and quality of graphene nanocoating (GN) on titanium implants under biologically relevant stresses.
  • To assess the anti-inflammatory and anti-corrosive properties of GN.
  • To determine GN's suitability for critical implant areas prone to disease.

Main Methods:

  • Graphene nanocoating (GN) produced via chemical vapor deposition and transferred to titanium using a polymer-assisted technique.
Keywords:
biocompatible materialscorrosionimplant dentistry/implantologynanotechnologyprostheses and implantstitanium

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  • Assessed inflammatory marker expression in macrophages exposed to GN.
  • Tested GN's coverage and integrity on implant collars after insertion/removal in bone substitute and pig maxilla.
  • Evaluated resistance to microbiologically influenced corrosion and biofilm challenges.

    • Main Results:

    • GN demonstrated high inertness, with no increased inflammatory marker expression in macrophages.
    • High coverage of GN was maintained on implant collars after mechanical stress.
    • GN resisted microbiologically influenced corrosion and maintained integrity after prolonged biofilm exposure and removal.
    • GN showed excellent structural integrity on implant collars, a critical area for disease onset.

    Conclusions:

    • Graphene nanocoating (GN) is unresponsive to inflammatory environments and maintains structural integrity on titanium implants.
    • GN's durability in critical implant collar regions suggests potential for improved osteogenic properties and reduced implant diseases.
    • Further clinical studies are warranted to explore GN's application in next-generation implants.