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Updated: Mar 8, 2026

Oral Biofilm Formation on Different Materials for Dental Implants

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Published on: June 24, 2018

Imidazolium-based titanium substrates against bacterial colonization.

T Cavoue¹, H Bounou Abassi², M Vayssade³

¹Institut de Chimie et des Matériaux Paris-Est, UMR 7182, CNRS-Université Paris-Est Créteil (UPEC), 2-8 rue Henri Dunant, 94320 Thiais, France. versace@icmpe.cnrs.fr.

Biomaterials Science

|February 1, 2017

Summary

This summary is machine-generated.

A novel photoactivated method enhances titanium surfaces to prevent hospital-acquired infections. This modification repels over 98% of bacteria while supporting bone cell growth, offering a safer medical device solution.

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Area of Science:

Biomaterials Science
Surface Chemistry
Medical Microbiology

Background:

Nosocomial infections pose significant risks, often originating from pathogenic organisms on medical devices.
Surface modification of materials is crucial for preventing bacterial adhesion but can impede biocompatibility.
Titanium is a widely used biomaterial in medical implants.

Purpose of the Study:

To develop a photoactivated surface modification technique for titanium substrates.
To create titanium surfaces with enhanced antibacterial properties and maintained biocompatibility.
To evaluate the anti-adhesion efficiency against bacteria and the interaction with osteoblast cells.

Main Methods:

A photoinduced grafting-onto technique was employed to immobilize an imidazolium-derivative siloxane onto titanium surfaces.
The modified titanium surfaces were tested for bacterial adhesion using Escherichia coli.
Osteoblast cell adhesion, viability, and cytotoxicity were assessed on the modified surfaces.

Main Results:

The developed photoactivated method successfully anchored imidazolium-derivative siloxane onto titanium.
Imidazolium-modified titanium surfaces demonstrated over 98% anti-adhesion efficiency against Escherichia coli after 24 hours.
Osteoblast cells adhered to and remained viable on the modified surfaces, showing no signs of cytotoxicity.

Conclusions:

Photoactivated surface modification offers an effective strategy to create antibacterial titanium surfaces.
The developed method enhances bacterial repellency without compromising osteoblast cell adhesion and viability.
This approach holds promise for reducing hospital-acquired infections associated with medical devices.