Mn-MOF based electrochemical sensor for highly detection of poisonous rat bait (Bromadiolone)

Abstract

Bromadiolone is a potent rodenticide used to control rat and mouse populations. Because of its anticoagulant properties, it prevents blood clots by interfering with the vitamin K cycle. While effective in pest control, its impact extends beyond the targeted species. Bromadiolone poses significant risks to non-target wildlife, particularly predators and scavengers that may consume poisoned rodents, leading to secondary poisoning. Metal-organic frameworks (MOFs) are a significant class of porous materials that have garnered substantial attention in recent years due to their unique properties and potential applications. Using the sonochemical approach, a novel metal–organic framework (MOF) combining manganese and ligand generated from 2-carboxy-benzaldehyde and 4-aminobenzoic acid has been synthesized. The resulting crystalline material were examined using a range of analytical methods, including thermal analysis, scanning electron microscope (SEM), energy dispersive Xray (EDX), powder X-ray diffraction (PXRD), Fourier-Transform infrared spectroscopy (FT-IR) and (BET) surface area. The findings of the BET study showed that the surface area was 1106.65 m² g⁻¹. The computed total pore volume was 1.81 cm³ g⁻¹, with an average pore size of 3.27 nm. The newly synthesized Mn-MOF is used in the electrochemical detection of a potent anticoagulant rodenticide bromadiolone, which represented a significant advancement in chemistry. The existence of Mn in the MOF structure enhanced its electrochemical properties, allowing for the sensitive detection of bromadiolone in oats and maize samples.