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In vivo percutaneous permeation of gold nanomaterials in consumer cosmetics: implication in dermal safety assessment of consumer nanoproducts

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  • Mingjing Cao, National Center for Nanoscience and Technology, University of Chinese Academy of Sciences
  • ,
  • Bai Li, CAS - Institute of High Energy Physics
  • ,
  • Mengyu Guo, National Center for Nanoscience and Technology
  • ,
  • Ying Liu, National Center for Nanoscience and Technology
  • ,
  • Lili Zhang, Chinese Academy of Sciences
  • ,
  • Yaling Wang, National Center for Nanoscience and Technology
  • ,
  • Bin Hu, National Center for Nanoscience and Technology
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  • Jiayang Li, National Center for Nanoscience and Technology
  • ,
  • Duncan S. Sutherland
  • Liming Wang, CAS - Institute of High Energy Physics
  • ,
  • Chunying Chen, National Center for Nanoscience and Technology, University of Chinese Academy of Sciences

The increasing emergence of nano-cosmetics in the marketplace provokes safety concerns with respect to percutaneous permeation and toxicity of nanomaterials inside the human body. In this study, in vivo percutaneous permeation and dermal safety of cosmetic cream containing Au nanosheets and extracted Au nanosheets from cosmetic creams are investigated with guinea pigs. Quantitative percutaneous permeation data suggests that Au nanosheets in cosmetic creams permeate into the skin epidermis, dermis, and subcutaneous layer after 10 d cutaneous exposure, but cannot enter the systemic circulation. However, more Au nanosheets are accumulated in the skin and the permeation of Au nanosheets increased after embedded into the cream matrix. Synchrotron radiation X-ray fluorescence (SRXRF) imaging reveals that Au nanosheets in cosmetics penetrate mainly through hair follicles in a time-dependent manner. Cosmetic creams rather than extracted Au nanosheets decrease the cell viability of keratinocytes and slightly induce apoptosis/necrosis of keratinocytes and skin dermal fibroblasts. Intriguingly, the growth of hair is inhibited by the cosmetic cream and the extracted Au nanosheets revealed by HE staining and immunohistochemistry (IHC) assay. Altogether this study provides insights into the comprehensive understanding of percutaneous permeation and dermal safety of cosmetic creams containing Au nanosheets. This work provides reliable methods to study the skin permeation, biodistribution, and dermal safety of nano-cosmetics and reminds the community of the crucial need to combine the assays at molecular, cellular, and organ levels in nanotoxicology research.

Original languageEnglish
JournalNanotoxicology
Volume15
Issue1
Pages (from-to)131-144
Number of pages14
ISSN1743-5390
DOIs
Publication statusPublished - 2021

Bibliographical note

Publisher Copyright:
© 2020 Informa UK Limited, trading as Taylor & Francis Group.

Copyright:
Copyright 2021 Elsevier B.V., All rights reserved.

    Research areas

  • dermal safety, in vivo, nano-cosmetics, Percutaneous permeation

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