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(a) QD-introduced self-assembly procedure into silica NPs (SiO2@QD-TACs) and cell immunolabeling [53]. (b) QD-embedded silica-coated Ag NPs (Ag@SiO2/QDs) and attached aptamer (Ag@SiO2/QDs-Apt). Tc detection using shell-isolated NP-enhanced fluorescence (SHINEF) [54]. (c) Detection of zealralenone (ZEN) and deoxynivalenol (DON) using LFIA with QD@SiO2 [55]. (d) Detection of human foreskin fibroblast exosomes using fLFA with M-QD-SNs [56].
