Below sums up different nanozymes used to detect various food biomarkers.

Nanozyme used	Enzyme like activity displayed	Food biomarker detected	Sample matrix	Detection range	Limit of detection	Ref.
SiO2/Au–Pt	Catalase	Aflatoxin B1	Blind peanut samples	0.01 ng mL−1 and 1000 ng mL−1	5 pg mL−1	120
AuNPs	Peroxidase	Aflatoxin B1	Feed samples	0.001–2 ng mL−1	0.453 pg mL−1	121
MIL-88	Peroxidase	Aflatoxin B1	Peanut milk and soy milk	0.01 to 20 ng mL−1	0.009 ng mL−1	122
Cu(OH)2 nanocages	Peroxidase	Microcystin-LR	Water samples	0.007 to 75 μg L−1	6 ng mL−1	123
AuNP-ICA	Peroxidase	E. coli O157:H7	Milk samples	1.25 × 101 CFU mL−1 to 1.25 × 105 CFU mL−1	1.25 × 101 CFU mL−1	124
AuNPs	Peroxidase	E. coli	Fruit juice samples	10 to 109 CFU mL−1	∼10 CFU	125
Graphene quantum dots	Peroxidase	Yersinia enterocolitica	Milk samples	1–6.23 × 108 CFU mL−1	5 CFU mL−1	126
Au/Ag NPs	Peroxidase	Norovirus	—	1 pg mL−1–100 ng mL−1	10.8 pg mL−1	127
AuNPs	Peroxidase	Norovirus	—	1320–19 800 viruses per mL	50 viruses per mL	128
CoFe2O4	Peroxidase	Kanamycin	Milk samples	1 pM to 1 μM	0.5 pM	129
AuNCs	Peroxidase	Tetracycline	Milk samples	1–16 μM	46 nM	130
AuNPs	Peroxidase	Ampicillin	Milk samples	—	—	131
Tb-MOF	Peroxidase	17β-estradiol	—	0–100 nM	5 nM	132
Fe3O4 magnetic nanoparticles	Peroxidase	17β-estradiol	Milk, prawn, fish and chicken samples	0–0.5 ng mL−1	0.2 ng mL−1	133
GMP-Cu	Laccase	Sulfide	Baking soda, rock sugar, konjac flour and xylitol	0–220 μmol L−1	0.67 μmol L−1	134
MIP-PdAuNPs-ERGO/GCE	Peroxidase	Tertiary butylhydroquinone	Edible oils	0.5–60 μg mL−1	0.046 μg mL−1	135
CuS crystals	Peroxidase	Tartrazine and sunset yellow	Mirinda, jelly and candy	0.4–100 μM for tartrazine and 0.1–700 μM for sunset yellow	0.012 μM for tartrazine and 0.006 μM for sunset yellow	136