Silver Nanoparticle Toxicity and Biocides: Need for Chemical Speciation

摘要: Nanoparticles were first characterized in the 1970s.Analytical development, especially atomic force micro-scopy, allowed descriptions of nanotubes, nanorods, etc. Thisnew knowledge also resulted a renewed interest theuse silver (Ag) as biocidal agent. Increased use ofthis precious metal has likely elevated its concentration inthe environment. More recently, regulators and nongovern-mental organizations have expressed concernabout toxicological role nanoparticles, especiallythat Ag. But what is complete composition theseAg are they toxic? Unfortunately therehas been incomplete incorrect use, description, andanalysis nano-Ag substances. Descriptions discussionoften confuse discrete aquo Ag