Heterometallic ion-regulated full-color gold nanoclusters for multicolor bioimaging and circularly polarized luminescence.

ABSTRACT: Achieving tunable full-color emission and high-efficiency circularly polarized luminescence (CPL) from a single type of nanocluster remains a major challenge due to weak dissymmetry factors and aggregation-induced quenching. This study reports a breakthrough synthesis of full-color-emitting gold nanoclusters via heterometallic ion doping. By reducing HAuCl₄ with 4-amino-2-mercaptopyrimidine (AMP) in the presence of Cr³⁺, Mg²⁺, or Ag⁺, blue (400 nm), green (495 nm), and red (700 nm) emissive NCs were obtained with respective quantum yields of 13.2%, 2.46%, and 3.34%. Structural analysis confirmed compositions of Au₇(AMP)₅Cr₂, Au₆(AMP)₄Mg₂, and Au₆(AMP)₃A

SUBMITTER: Yin Y 

PROVIDER: S-EPMC12622237 | biostudies-literature | 2026 Jan

REPOSITORIES: biostudies-literature