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Updated: Oct 7, 2025

Manganese Oxide Nanoparticle Synthesis by Thermal Decomposition of ManganeseII Acetylacetonate
Published on: June 18, 2020
Manganese Oxide Nanoclusters for Skin Photoprotection
Lin Xiong1, Mengyao Zhao1, Yong Fan1
1Department of Chemistry, State Key Laboratory of Molecular Engineering of Polymers, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials and iChem, Fudan University, Shanghai 200433, People's Republic of China.
Abstract:
An ultraviolet (UV) filter is the core component of sunscreen and protects skin from various photo damages. Current UV filters are hampered by skin penetration, poor photostability, photocatalytic generation of harmful reactive oxygen species (ROS), and potential environmental risks. In this work, manganese dioxide nanoclusters were developed as an eco-friendly UV filter by a facile two-step synthesis, using colloid silica as support under ambient conditions. These nanoclusters show a better UV-shielding profile than commercial titanium dioxide nanoparticles and capability to scavenge various ROS. They can be easily incorporated by a sunscreen formula and demonstrate an excellent skin photoprotection performance both in vitro and in vivo.
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