In this study, a novel highly sensitive colorimetric platform has been designed for malathion
assay based on Fe-N/C SAzyme. The as-synthesized SAzyme can directly oxidize 3, 3´, 5, 5´ …

By adjusting the coordination environment of single-atom catalysts, the enzyme-like activity
can be finely tuned for highly sensitive biosensing. Herein, we demonstrated that …

Rapid detection of pesticide residues based on enzyme mimics has recently attracted much
interest. However, most nanozymes have low activity. Herein, a “single-atom Ce-NC …

The development of cost-effective and easy-to-use strategies for the detection of ascorbic
acid (AA) and acid phosphatase (ACP) is in high demand but challenging. Thus, we report a …

Nanozyme-based colorimetric assays have shown great potential in the rapid and sensitive
determination of pesticide residue in environment. However, the non-specific enzyme …

Despite the tremendous achievements of existing sensing techniques, sensitive and
portable sensing of organophosphorus pesticides (OPs) in a non-polluting manner remains …

Ascorbic acid is one of the important vitamins to maintain human life activities and plays an
irreplaceable role in regulating human redox metabolism. Fresh fruit can provide plenty of …

A colorimetric assay based on an enzyme-inhibition strategy is promising for the on-site
detection of pesticide residues. Due to the high cost and low stability of enzymes …

The single-atom iron nanozyme (SA-Fe-NZ) exhibits high catalytic activity and excellent
electron transfer efficiency in biosensors. However, the binding of bioreceptors to the surface …

As a high biologically toxic heavy metal ion, Cr (VI) will cause environmental pollution and
endanger human health. Therefore, the development of fast, simple and visible detection …