Strontium hexaferrite nanomagnets suspended in a cosmetic preparation: a convenient tool to evaluate the biological effects of surface magnetism on human skin

T. Zioni, N. Perkas, Y. Wolfus, Y. Soroka, I. Popov, M. Oron, I. Perelshtein, Y. Bruckental, F. M. Brégégère, Z. Ma'or, A. Gedanken, Y. Yeshurun, R. Neuman, Y. Milner

Research output: Contribution to journalArticlepeer-review

3 Scopus citations

Abstract

Background/purpose: Magnetic therapy has been popular for ages, but its therapeutic abilities remain to be demonstrated. We aimed to develop a homogeneous, stable dispersion of magnetic nanoparticles in a skin-care preparation, as a tool to analyze the biological and physiological effects of superficial magnetism in skin. Methods: SrFe12O19 nanoparticles were generated by ultrasound, dispersed in glycerol, stabilized in Dermud cream and permanently magnetized. The magnetic cream was applied on the epidermis of human skin organ cultures. The effects on UV-induced cell toxicity, apoptosis and inflammatory cytokine expression were analyzed. A clinical test was performed to check skin moisturization. Results: Nanomagnets were found to be homogenously and stably dispersed. After magnetization, the preparation generated a magnetic field of 1-2 G. Upon cream application, no cytotoxicity and no impairment of cellular vitality were found after 24 and 48 h, respectively. The anti-apoptotic and anti-inflammatory properties of Dermud were not modified, but its long-term effect on moisturization in vivo was slightly increased. Conclusion: Nanomagnetic Dermud cream can be used as a tool to analyze the biological effects of nanomagnets dispersed on the skin surface at the cellular and molecular levels, thus allowing to explore the possible therapeutic uses of superficial magnetism for skin care.

Original languageEnglish
Pages (from-to)316-324
Number of pages9
JournalSkin Research and Technology
Volume16
Issue number3
DOIs
StatePublished - Aug 2010

Keywords

  • Inflammatory cytokines
  • Magnetotherapy
  • Nanoparticles
  • Skin care
  • UV damage

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