Detection and electrocatalytic mechanism of zearalenone using nanohybrid sensor based on copper-based metal-organic framework/magnetic Fe3O4-graphene oxide modified electrode

Electrodeposition of paracetamol oxide for intelligent portable ratiometric detection of nicotine and ethyl vanillin β-d-glucoside

“…The relative standard deviation (RSD) of the redox peak current of the PA ox/SPCE is 1.96% and 1.60% (Fig. 5f ), 40,41 respectively, so it is feasible to use electrodeposited PA ox as an internal reference probe. Characterization of the ratiometric detection performance of PA ox/SPCE.…”

Detection of food contaminants: A review of established rapid analytical techniques and their applications and limitations

“…The amperometric sensor was utilized to detect propyl gallate with a LOD of 0.075 μM and showed good practicality in oil samples (Priscillal & Wang, 2022). LOD of 23.14 ng/mL (Zeng et al, 2022). In addition to traditional GCE and screen-printed electrodes, laser-writing electrodes have been developed for the detection of hypoxanthine, xanthine , and sulfonamides (Qiu et al, 2022) in food samples (Figure 5b).…”

“…Zeng et al., used MOF and magnetic Fe 3 O 4 ‐graphene oxide to modify glassy carbon electrode (GCE) for the determination of zearalenone (ZEA). The proposed strategy has a broad linear range from 159.2 to 2865.2 ng/mL with a LOD of 23.14 ng/mL (Zeng et al., 2022). In addition to traditional GCE and screen‐printed electrodes, laser‐writing electrodes have been developed for the detection of hypoxanthine, xanthine (Zhu, Liu, et al., 2021), and sulfonamides (Qiu et al., 2022) in food samples (Figure 5b).…”

Progress and opportunities for metal–organic framework composites in electrochemical sensors

“…Zeng et al 77 developed the Cu-MOF/Fe 3 O 4 -GO/GCE electrochemical sensor by modifying GCE with the as-prepared Cu-MOF/magnetic Fe 3 O 4 -graphene oxide (Fe 3 O 4 -GO) composite for rapid detection of zearanene (ZEA) in breakfast cereals, corn flour, and rice flour. As indicated by the density functional theory (DFT), Cu-MOF on the Fe 3 O 4 -GO surface promotes electron transfer between energy bands, thereby facilitating rapid oxidation of ZEA on the sensor surface.…”