LAUSR

Persistent luminescence materials (PLMs) have been capturing more and more attention in biosensing, which is ascribed to the autoluminescence-free background, no requirement of illumination in situ, and high signal-to-noise ratio. PLMs with tunable persistent luminescence and desired decay patterns are still required to meet the demands of multiple bioassays and time-resolved fluoroimmunoassays. Herein, persistent luminescence nanorods with distinct decay patterns are prepared by doping Mn2+, Mo6+, Cr3+, and Sr2+ in the Zn2GeO4 (ZGO) host material, and persistent luminescence nanoparticles are synthesized by doping Cr3+ in the ZnGa2O4 (ZGC) host material. Green-emitted ZGO:Mn NRs and NIR-emitted ZnGa2O4:Cr (ZGC) NPs show slow luminescence decay rates and noninterfered colors and are alternative probes for the dual detection of prostate specific antigens and carcinoembryonic antigens (CEAs). The limits of detection are as low as 8.9 fg mL–1 PSA and 72 fg mL–1 CEA. The nanoprobes are capable of monitoring t...