Nature�??s Playing Field: Nanotechnology and Medicine

It�??s hard to imagine building things as small as a cell, but now we can make things even smaller than that �?? as small as viruses or even DNA. This month, hear about nanotechnology�??s fortuitous interface with the tiny stuff of biology. Research in this area has dramatic implications for the future of medicine. It could lead to artificially engineered tissues, more effective drug delivery, and new kinds of health monitoring devices.