Bacteria help to make Nanoelectronics

Researchers  at Britain's University in collaboration with japan's Tokyo University of Agriculture and Technology,have made use of a type of bacterium-Magnetospirillum magneticum--that eats iron to create tiny magnets inside itself.
                                 These tiny magnets are quite similar to those found in traditional hard drives.The scientists feel that their research could lead to much faster,higher-density hard drives and a range of other high performance,environment friendly electronic devices. 

                                                        Nature can help us.We are forever trying to make electronic components smaller but are quickly reaching our limits with traditional manufacturing techniques.The bacterium used in the research is a natural magnetic microorganism,which is found in ponds and lakes and swims along the earth's magnetic lines.
Therefore,when it eats iron,proteins interact to produce tiny crystals of magnetite-the most magnetic of all naturally occuring minerals on earth.