Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Schematic representation of the (A) skin structure, (B) epidermis structure, and (C) stratum corneum composition (“brick and mortar” structure). (D) Potential routes of skin penetration for nanomaterials. Adapted with permission from Salvioni et al. [71]. Copyright 2021 Advances in Colloid and Interface Science.
