Article ID Journal Published Year Pages File Type
1687747 Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms 2007 4 Pages PDF
Abstract

We report on the visualization of the penetration of sunscreen formulations containing TiO2 nanoparticles (about 20 nm primary particle size) into hair follicles of both human and porcine skin using the complementary methods of ion microscopy (PIXE, RBS, STIM) and autoradiography. Particles were found as deep as approx. 400 μm in the follicle, obviously introduced mechanically rather than by a diffusive process. No particles were observed in vital tissue nor in sebaceous glands.

Related Topics
Physical Sciences and Engineering Materials Science Surfaces, Coatings and Films
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