“…Owing to its high fluorescence and stability, BSA-capped AuNCs have been applied to detect various analytes, including small molecules (methotrexate, cysteine, glutathione, vitamin B12, dopamine and quercetin), heavy metal ions (Cu 2þ , Hg 2þ and Ag þ ), and proteins and proteases. They were also employed for cell labeling with their good biocompatibility, easy preparation, bio-conjugation, and long-wavelength emission [18]. Therefore, the combination of AuNCs and other materials can be considered as an effect way to provide highly selective and sensitive sensing platforms.…”