β-Cyclodextrin modified gold nanoclusters with near-infrared emission were facilely and successfully prepared based on a one-pot and green supramolecular macrocycle modification strategy.
Monodisperse and water-soluble Cys-Au dots with near-infrared emission successfully prepared by a one-pot synthesis approach, and the as-prepared Au dots could be used for long-term tumor cell imaging and highly selective detecting Pb2+.