Computer hard drive capacity could be increased a hundredfold by using a common protein to fabricate nano-scale magnetic particles, claims UK company Nanomagnetics It uses the protein apoferritin, the main molecule in which iron is stored in the body, to create a material consisting of magnetic particles each just a few nanometres in diameter. Each particle can store a bit of information and together they can be packed onto a disk drive at much greater density than is possible using existing hard disk manufacturing methods. http://www.newscientist.com/news/news.jsp?id=ns99993664
Just think of the possibilities. Hmm, You know the term "computer virus" could take on a whole new meaning.