Fig. 6From: Multi-carbon dots and aptamer based signal amplification ratiometric fluorescence probe for protein tyrosine kinase 7 detectionSelectivity of PTK 7 detection, and concentration of PTK 7 was 100 ng mL−1. a Concentrations of BSA, Hb and DDPIV were 1000 ng mL−1, while b the concentrations of interferents (Mg2+, Ca2+, Fe3+, Mn2+, Cu2+, K+, Glu, Gul and Arg) were also 1000 ng mL−1Back to article page