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Revolutionary SquarE-Phase 2D Materials for AdvanCed NIR-active AntimicrObial CoATings (REDCOAT)

Project description

NIR-active 2D nanomaterial coatings against superbugs

Superbugs resistant to antibiotics are an increasing danger in hospitals, especially around implants. Supported by the Marie Skłodowska-Curie Actions programme, the REDCOAT project is creating antibacterial coatings that use two-dimensional nanosheets of molybdenum and tungsten disulfide, which can absorb near-infrared (NIR) light and convert it into heat to kill bacteria. These coatings are enhanced with iron compounds to better target harmful bacteria while staying safe for human cells. They will be applied to titanium implants and tested for both antibacterial activity and biocompatibility with human cells. Using computer simulations and laboratory experiments, researchers will investigate how the coatings disrupt bacterial membranes, offering a new tool against infections.

Objective

"The emergence of antibiotic-resistant superbugs necessitates the development of innovative antimicrobial strategies. The ""Revolutionary Square-Phase 2D Materials for Advanced NIR-active Antimicrobial Coatings (REDCOAT)"" project aims to address this challenge by leveraging the unique properties of square-phase transition metal dichalcogenides (TMDCs), specifically MoS2 and WS2, to design advanced antimicrobial coatings on titanium implants. REDCOAT will explore the synthesis, surface modification, and application of square-phase TMDC nanosheets, targeting their integration into next-generation NIR-active antimicrobial coatings.

MoS2/WS2 nanosheets will be synthesised with precisely controlled dimensions (100-500 nm edge lengths, 3-10 nm thickness) to exploit their NIR absorption and photothermal conversion capabilities. These nanosheets will be functionalized with an Iron-Gallic Acid-based metal-phenolic network (MPN) to enhance the interaction with bacterial membranes while ensuring biocompatibility. The functionalized TMDCs will be uniformly coated onto Ti6Al4V alloy implants, aiming for a coating thickness of 10-50 µm and surface roughness of 50-200 nm, optimised for effective antimicrobial activity and improved osseointegration.

To elucidate the interaction mechanisms between these coatings and bacterial cells, molecular dynamics (MD) simulations will be performed at 310 K with femtosecond resolution. These simulations will focus on the deformation of lipid bilayers and pore formation under different TMDC coverage levels (5%, 10%, 20%), providing insights into the antimicrobial efficacy of the coatings. Complementing this, in vitro biocompatibility studies will be conducted using human mesenchymal stem cells (hMSCs) seeded on the coated Ti6Al4V discs, assessing cell viability, proliferation, and differentiation. The antimicrobial efficiency of the coatings will be tested against common pathogens and superbugs.
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Fields of science (EuroSciVoc)

Keywords

Programme(s)

Topic(s)

Funding Scheme

HORIZON-TMA-MSCA-PF-EF - HORIZON TMA MSCA Postdoctoral Fellowships - European Fellowships

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Call for proposal

(opens in new window) HORIZON-MSCA-2024-PF-01

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Coordinator

POLITECHNIKA LODZKA
Net EU contribution
€ 163 166,16
Address
ULICA ZEROMSKIEGO 116
90 924 LODZ
Poland
Region
Makroregion województwo mazowieckie Warszawski stołeczny Miasto Warszawa
Activity type
Higher or Secondary Education Establishments
Links
Total cost
No data

Partners (1)