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This invention can discriminate AgNPs from other silver species, including AgCl, Ag ions and Ag bulk particles.
About
Technology Silver nanoparticles (AgNPs) are the most commonly used nanoparticles in many consumer products and related matrices. Given the wide application and formation of AgNPs, the environmental and biological fate and toxicity of the AgNPs needs to investigated comprehensively, including if AgNPs transfer through different trophic levels and impact food chains. This invention was developed by combining hydrophobization-mediated extraction with unique capability of Surface-enhanced Raman spectroscopy (SERS).