A core–shell structure ratiometric fluorescent probe based on carbon dots and Tb3+ for the detection of anthrax biomarker

Advances in Carbon Dot-Based Ratiometric Fluorescent Probes for Environmental Contaminant Detection: A Review

“…A core-shell structure is also a frequently adopted approach to protect the sensing capabilities of CDs fluorescent probes [ 80 , 81 , 82 , 83 , 84 , 85 ]. For example, Gong et al [ 80 ] reported a novel and stable ratiometric fluorescent probe (B-CDs@SiO 2 @GSH-AuNCs/Ag + ) designed for the sensitive detection of uranyl in water ( Figure 2 b).…”

“…Biological and Biomolecular Targets: CD-based ratiometric fluorescence probes have been adapted for detecting specific biological and biomolecular targets, such as bacteria [ 82 , 163 , 164 ], biomarkers [ 75 , 165 ], cholesterol [ 77 ], amino acids [ 64 ], guanine [ 166 , 167 ], DNA [ 168 ] ( Figure 7 d,e), and proteins [ 1 , 91 , 107 , 169 , 170 ]. These probes find applications in genomics, molecular diagnostics, and bioanalytical assays.…”

Preparation and application of carbon quantum dot fluorescent probes combined with rare earth ions

“…The ratio of DPA concentration to Tb 3+ emission intensity at 544 nm was linear in the concentration range of 0.1 to 2 M. The fluorescence color of the probe obviously changed from colorless to green with an increase in DPA under UV light, enabling visual detection. 30…”