Tiny microscopic particles are a growing part of our everyday lives. Artificial beads, spheres and particles that are too small to be seen by the naked eye are transforming the world around us. Their size is a millionth of a metre, known as ‘micro’, to a billionth of a metre, or ‘nano’. They are found in everyday items, such as, silver-coated plasters and wound dressings that use nanoparticles, as well as sunscreen lotion which includes micro-sized spheres made from either titanium dioxide or zinc oxide. The e-bookreaders, for example, is made possible thanks to hundreds of thousands of tiny particles trapped within microcapsules.