A recent in vivo study published in NanoLetters focuses on the impact of ultraviolet radiation on the ability of Quantum Dots (QD) to penetrate skin. L. Mortensen, et al., "In Vivo Skin Penetration of Quantum Dot Nanoparticles in the Murine Model: The Effect of UVR," NanoLetters, Vol. 8, No. 9, pp. 2779-2787 (August 2008). The … Continue Reading