One-pot synthesis of biofunctional and near-infrared fluorescent gold nanodots and their application in Pb²⁺ sensing and tumor cell imaging

Abstract

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⁺.