Nuclear microprobe investigation of the penetration of ultrafine zinc oxide into human skin affected by atopic dermatitis

Z. Szikszai, Zs Kertész, E. Bodnár, I. Borbíró, A. Angyal, L. Csedreki, E. Furu, Z. Szoboszlai, A. Z. Kiss, J. Hunyadi

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

Skin penetration is one of the potential routes for nanoparticles to gain access into the human body. Ultrafine metal oxides, such as titanium dioxide and zinc oxide are widely used in cosmetic and health products like sunscreens. These oxides are potent UV filters and the particle size smaller than 200 nm makes the product more transparent compared to formulations containing coarser particles. The present study continues the work carried out in the frame of the NANODERM: "Quality of skin as a barrier to ultrafine particles" European project and complements our previous investigations on human skin with compromised barrier function. Atopic dermatitis (a type of eczema) is an inflammatory, chronically relapsing, non-contagious skin disease. It is very common in children but may occur at any age. The exact cause of atopic dermatitis is unknown, but is likely due to a combination of impaired barrier function together with a malfunction in the body's immune system. In this study, skin samples were obtained from two patients suffering from atopic dermatitis. Our results indicate that the ultrafine zinc oxide particles, in a hydrophobic basis gel with an application time of 2 days or 2 weeks, have penetrated deeply into the stratum corneum in these patients. On the other hand, penetration into the stratum spinosum was not observed even in the case of the longer application time.

Original languageEnglish
Pages (from-to)2278-2280
Number of pages3
JournalNuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
Volume269
Issue number20
DOIs
Publication statusPublished - Oct 15 2011

Keywords

  • Atopic dermatitis
  • Ion microscopy
  • PIXE
  • Penetration into human skin
  • STIM
  • Sunscreens
  • ZnO nanoparticles

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Instrumentation

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