Lipid-Hydrogel-Nanostructure Hybrids as Robust Biofilm-Resistant Polymeric Materials

Area of Science:

• Biomaterials Science
• Surface Chemistry
• Microbiology

Background:

• Preventing biofilm formation on materials is a persistent challenge in various applications.
• Existing antibiofilm strategies, including bactericidal agents, antifouling coatings, and nanopatterning, show limited efficacy when used alone.
• There is a need for advanced materials with robust and durable antibiofilm properties.

Purpose of the Study:

• To develop a highly efficient and durable biofilm-resistant material using a hybrid strategy.
• To investigate the synergistic effects of combining lipid-hydrogel and nanotopography features.
• To evaluate the antibiofilm performance against both Gram-negative and Gram-positive bacteria.

Main Methods:

• Fabrication of a lipid-hydrogel-nanotopography hybrid material.
• Grafting of biocompatible polyethylene glycol-based polymer with 2-methacryloyloxyethyl phosphorylcholine.
• Characterization of the material's nanostructure and surface properties.
• Assessment of antifouling and bactericidal activities against various bacterial strains.
• Evaluation of antibiofilm durability under mechanical stress.

Main Results:

• The hybrid material demonstrated superior dual antifouling and bactericidal activities compared to single-strategy surfaces.
• Effective prevention of biofilm formation was observed for both Gram-negative and Gram-positive bacteria.
• The composite nanostructure endowed the material with robust antibiofilm activity, even after mechanical damage.

Conclusions:

• The developed lipid-hydrogel-nanotopography hybrid material represents a significant advancement in biofilm-resistant technology.
• This hybrid approach offers a promising strategy for creating durable and highly effective antibiofilm surfaces.
• The material's preserved efficacy after damage highlights its potential for long-term applications.