Synthesis of Highly Fluorescent Gold Nanoparticles for Sensing Mercury(II)

摘要

Monolayer-protected metal nanoparticles (NPs) have gained a great deal of attention in the past decade because of their unique electronic properties and potential optical-sensing applications.Gold nanoparticles (AuNPs) exhibit size-dependent surface plasmon resonance (SPR) absorption properties when their conducting electrons in both the ground and excited states are confined to dimensions smaller than the electron mean free path (ca.20 nm).