Two-Dimensional TiO₂ Ultraviolet Filters for Sunscreens.

ABSTRACT: Titanium dioxide (TiO₂) has been an important protective ingredient in mineral-based sunscreens since the 1990s. However, traditional TiO₂ nanoparticle formulations have seen little improvement over the past decades and continue to face persistent challenges related to light transmission, biosafety, and visual appearance. Here, we report the discovery of two-dimensional (2D) TiO₂, characterized by a micro-sized lateral dimension (~1.6 μm) and atomic-scale thickness, which fundamentally resolves these long-standing issues. The 2D structure enables exceptional light management, achieving 80% visible light transparency-rendering it nearly invisible on the skin-while maintaining UV-blocking performance comparable to unmodified rutile TiO₂ nanoparticl

SUBMITTER: Yang R 

PROVIDER: S-EPMC12173993 | biostudies-literature | 2025 Jun

REPOSITORIES: biostudies-literature