Copper has been used by humans for as much as 7000 years and elements such as gold, silver, tin ... The discovery of other elements followed regularly and soon it became necessary to arrange ...

Silver is one of the most important elements on the planet, and there is no other that even comes close to its versatility of uses. Even gold, often considered the ultimate precious metal ...

The invention combines silver nanowires and a tiny electric current to create a surface that eliminates and repels bacteria ...