Low friction zwitterionic layer-by-layer coatings
Innovative zwitterionic polymer coatings designed for low friction and high adhesion, utilizing water-insoluble layer-by-layer technology. This solution offers a non-PFAS, natural alternative for robust surface coatings with potential applications in various industries.
Overview
The low friction zwitterionic layer-by-layer coatings are designed to achieve extremely low coefficients of friction, potentially below 0.01, by leveraging a hydration lubrication mechanism. These coatings aim to provide a robust and high-adhesion surface solution using naturally derived materials. The innovation offers a non-PFAS alternative, making it environmentally friendly and suitable for various applications across industries requiring low friction surfaces.
Technical specifications
The core technology involves engineering zwitterionic polymers into water-insoluble layer-by-layer coatings. Key features include:
- Utilization of natural polymers chemically modified to create zwitterionic properties
- Application of advanced techniques like plasma polymerization and layer-by-layer coatings to ensure surface adhesion
- Characterization through methods such as NMR, SEC, AFM, XPS, ToF-SIMS, and FTIR
- Potential use of plasma polymerization to enhance adhesion when necessary
Technology readiness level
This technology is currently at TRL 3, indicating that active research and proof-of-concept validation are underway in controlled laboratory settings. Further development and validation steps are planned to optimize polymer selection and adhesion conditions.
About University of South Australia
Formerly a comprehensive public research university based in Adelaide, UniSA operated multiple city and regional campuses; operations transitioned to the new Adelaide University on January 1, 2026, with an official opening on January 29, 2026. For industry, a one‑stop Enterprise Hub streamlined access to consulting, testing and bespoke training. Co‑located facilities in Adelaide BioMed City (including the UniSA Cancer Research Institute/Bradley Building) enabled close links with hospital partners, while the Mawson Lakes campus adjoined Technology Park to anchor defence and advanced‑technology collaborations. Research was consistently supported by competitive national funding from the Australian Research Council and the National Health and Medical Research Council, often alongside matched industry support. Commercialisation was backed by a dedicated technology transfer function and the Innovation & Collaboration Centre’s incubation and acceleration programs.
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