Is special FDA regulation of nanomedicine needed? A conversation with Norris E. Alderson. Interview by Barbara J Culliton.

Cutting-edge research in nanomedicine dominates studies in drug delivery, medical imaging, and the development of new devices. Materials and devices the size of molecules, and even individual atoms, make it possible to see a tumor when it is no more than a few atoms in size. By using material in this size range, drugs can go directly to tumors or inflamed arteries, bypassing healthy tissue.

Tissue Iodine in Sheep Fed Diets Containing Ethylenediamine Dihydriodide.

Twenty-four male lambs, produced by crossing commercial blackfaced ewes with purebred Suffolk rams and averaging 40.1 kg body wt., were fed one of two ethylenediamine dihydriodide (EDDI)-supplemented diets.