Localised Al(OH)3 Quantum Dot Passivation for Safe-by-Design Rutile TiO2 Nanomaterials for UV Protection

Key Points

• The study aims to enhance the safety and photostability of titanium dioxide by using quantum dot passivation.
• Utilized localized Al(OH)3 quantum dots for passivation of rutile TiO2.
• Assessed photocatalytic activity and UV-filtering efficacy.
• Conducted experiments under simulated cosmetic application conditions.
• Significant reduction in photocatalytic activity was observed with the quantum dot passivation.
• Enhanced stability of TiO2 nanomaterials under UV exposure.
• Demonstrated improved safety profile for cosmetic applications.