40 nm, but not 750 or 1,500 nm, nanoparticles enter epidermal CD1a+ cells after transcutaneous application on human skin.
9 auth. A. Vogt, B. Combadière, S. Hadam, K. Stieler, J. Lademann, H. Schaefer, ... B. Autran, W. Sterry, U. Blume-Peytavi