“…Au Nanospheres HAuCl 4 reduced by trisodium citrate Malachite green in fish (Y. ; phosmet and thiabendazole in apple (Luo et al, 2016) Nanorods HAuCl 4 reduced by NaBH 4 (seed) and then ascorbic acid (growth) mediated by surfactant CTAB Allura Red and Sunset Yellow in 13 beverages (Ou et al, 2018); thiabendazole in lemon, carrot, and mango juices (Alsammarraie et al, 2018) Nanostars HAuCl 4 reduced by trisodium citrate or NaBH 4 (seed) and then hydroquinone and citrate or ascorbic acid mediated by Triton X-100 and CTAB Thiram in peach juice and in apple peels (Zhu, Liu, Li, Li, & Zhao, 2018) Ag Nonuniform nanoparticles AgNO 3 reduced by trisodium citrate Histamine in fish (Janči et al, 2017); paraquat on the skins of apple and pear (Fang et al, 2015) Nanowire AgNO 3 reduced by glycerol with PVP as surfactant Prohibited fish drugs such as malachite green, and chloramphenicol (Song et al, 2016) Nanodendrite film Replacement reaction using Zn and AgNO 3 Restricted antibiotics in solutions (He, Lin, Li, & Kim, 2010); ricin in milk (He et al, 2011) NPs-based filter paper Silver mirror reaction Thiram and paraoxon on the peels of apple tomato and banana Au-Ag core-shell NPs HAuCl 4 citrate reduction (seed) followed by AgNO 3 citrate or ascorbic acid reduction (shell)…”