Iron oxides based nanozyme sensor arrays for the detection of active substances in licorice

Construction and Application of Nanozyme Sensor Arrays

“…In the report of Yuan et al, a colorimetric sensor array based on iron oxide nanozymes with POD-like properties was developed to distinguish active compounds in licorice . Fe 2 O 3 , Fe 3 O 4 , and His–Fe 3 O 4 NPs were chosen as three sensing elements.…”

“…In the report of Yuan et al, a colorimetric sensor array based on iron oxide nanozymes with POD-like properties was developed to distinguish active compounds in licorice. 99 100 This array employed three DNA nonspecific sequences (A40, T40, and C40) absorbed on the nanosheets as sensing elements, catalyzing the oxidation of TMB. Moreover, when mycotoxins were introduced into the system, they would affect the PODlike activities of the three nanozymes to differing extents.…”

Ratiometric colorimetric detection of nitrite using CoMnO3 nanofibers as an oxidase-like enzyme to induce diazotization reaction

“…15 Zhang et al developed a ratiometric colorimetric sensing platform for nitrite detection in food and aquatic systems by catalyzing TMB oxidation using CoOOH nanosheets (CoOOH NSs). 16 Liu et al employed iron monoatomic catalysts (Fe SACs) as catalysts through redox and diazotization reactions to establish sensitive and selective colorimetric and paper detection approach for nitrite. 17 Numerous colorimetric sensor platforms showing unique colors have been developed recently, in part due to the rapid development of nanozymes.…”