And get this:

"Those ions can easily be taken into the bloodstream through channels that
absorb other types of salt. That's a crucial step, Hurt said. Silver metal
particles themselves aren't terribly likely to make it from the GI tract to
the blood, but when they're transformed into a salt, they're ushered right
through"

God it just goes to show how useless it is for people to argue for years
about theories.  Observation trumps theories by 1,000 miles.  Competing
hypotheses are endless.

And also of interest: "This study implies that silver nanoparticles will be
less toxic than an equivalent amount of silver salt, at least in this
exposure scenario."

David