Nanochemistry is the use of http://www.answers.com/topic/chemical-synthesis to makehttp://www.answers.com/topic/nanoscopic-scale building blocks of desired http://www.answers.com/topic/shape, size,...
While mascara and various other cosmetics contain guanine, which is used to give a pearlescent look, this is not guano and does not come from guano. It is made from fish scales though. So, no bat...