Nanoparticles absorbed through skin

Scientists are finding that particles that are barely there – tiny objects known as nanoparticles that have found a home in electronics, food containers, sunscreens, and a variety of applications – can breach our most personal protective barrier: The skin.
The University of Rochester Medical Centre has found that the particles can be found in the Lymph, liver and nervous system.
This is how Alister absorbed the nanoparticles in his mothers lab.
Full article here

The Guardian ran an report on concerns about these nanoparticles. Read it here
Other scientists are experimenting using coated  nanoparticles to deliver treatment such as Polyethylene Glycol (PEG) to injured brain and spinal cords. PDF File outlining principles here