5 octubre 2015
When pathologists perform autopsies on smokers who died with severe emphysema, they find that lungs are black in appearance. Until recently, researchers and physicians could only guess at the composition of the material that gave the black color to the lungs of smokers. In two papers, researchers identify that black material as mostly insoluble nanoparticulate carbon black, tiny specks that result from the incomplete combustion of organic material, such as tobacco.
http://www.sciencedaily.com/releases/2015/10/151005120907.htm
