Complex sentence: Human skin penetration of silver nanoparticles through intact and damaged skin "Toxicology" 2009 September; 255:33-37 Cadmium selenide (CdSe) quantum dots have proven to penetrate very effectively when they have certain properties.
Split into simpler sentences: Human skin penetration of silver nanoparticles through intact and damaged skin. Toxicology 2009 September; 255:33-37 Cadmium selenide (CdSe) quantum dots have proven to penetrate very effectively when they have certain properties.