Recyclable photo-cured adhesives for cosmetic applications
A revolutionary adhesive system utilizing visible-light-curable thermoset derived from lipoic-acid-based monomers for cosmetic applications, offering strong bonding and removability under mild conditions, with a focus on sustainability.
Overview
The recyclable photo-cured adhesive system presents a groundbreaking solution for cosmetic applications, particularly in artificial nails. Utilizing a lipoic-acid-based monomer, this adhesive cures rapidly under visible light (405–630 nm), eliminating the need for UV light and offering strong bonding across various substrates, including ceramics, polymers, and biological tissues. This formulation is solvent-free, cures without high temperatures, and all components are commercially available, with efforts underway to transition to a fully natural, bio-based composition.
Technical specifications
- Visible-light curing: Operates at multiple wavelengths (405–630 nm), suitable for opaque and semi-transparent surfaces.
- Strong adhesion: Outperforms reversible adhesives and cyanoacrylates in mechanical tests.
- Compatibility: Demonstrated effectiveness on biological surfaces, such as chicken skin.
- Removability: Currently being optimized for easy removal under mild conditions.
- Scalable synthesis: One-pot synthesis allows for scalable production.
Technology readiness level
The technology is at a Technology Readiness Level (TRL) of 4, indicating that it has been validated in a laboratory setting and is transitioning towards more extensive testing and optimization for specific applications, including ABS nails.
About Hebrew University of Jerusalem
The Hebrew University of Jerusalem is a comprehensive public research university with multiple campuses in Jerusalem and an agricultural campus in Rehovot. Its integration with Hadassah’s university hospitals enables clinical studies, access to varied patient populations, and co‑located research that accelerates translation. Industry engagement runs through Yissum, the university’s tech‑transfer company, managing IP, licensing, startup creation, and sponsored research agreements. Research is supported by competitive national funding and international programs, including European Union frameworks.
delivered to your inbox.