Figure 6.

(A) Schematics showing the preparation of PAA@Arg@ATT-AuNC as a fluorescent probe for trichothecenes A (T-2) toxin assay, reproduced from [119]. (B) Graphical illustration for the assaying of digoxin (DGX) using the aptamer/AuNPs/g-C3N4NS sensor probe, reproduced from [120]. (C) Schematic illustration of the zearalenone assay using a ratiometric fluorescent nanoprobe with dual emission at 518 and 608 nm, reproduced from [121]. (D) Schematic description of the protocol employed for a patulin (PAT) assay via CA-MWCNTs) with quenching of aptamer-tagged carboxyfluorescein, reproduced from [130]. (E) Schematic description of AFB1 detection based on UiO-66-NH₂ and aptamer-functionalized TAMRA dye, reproduced from [123]. (F) Schematic of the fluorescent aptasensor for an AMP assay based on the competitive quenching between the AMP aptamer complementary strand and AuNPs, reproduced from [131]. (G) Schematic showing an ultrasensitive fluorometric aptasensor for IFN-γ detection by dual atom transfer radical polymerization (ATRP) amplification, reproduced from [132]. (H) Schematic showing the fabrication of PDA–Apt liposomes and fluorescence imaging of plasma membrane glycoprotein MUC1, reproduced from [133]. (I) Schematic description of isocarbophos assay via fluorometric aptsensor based on AT-rich three-way junction DNA template copper nanoparticles and Fe₃O₄@GO, reproduced from [134].