A selective turn-on fluorescent chemosensor 1,1-diaminoazine for azinphos-methyl

Detection of organophosphorus pesticides (OPPs) is an important challenge in environmental chemistry, because their exposure to humans can cause severe health problems. In the current study, organic nanoparticles of (E)-(4chlorophenyl)-1,1-diamino-2,3-diazabutadiene were developed using eco-friendly approach which was found to be in the range of 15-20 nm. These synthesized species exhibited both U.V. Visible and turn-on fluorescence responses in aqueous media for the selective detection of the extremely hazardous pesticide azinphos-methyl. These organic nanoparticles also exhibit a good linear relationship in the range of 1-100 mu M and the limit of detection (LOD) is 7.4 mu M. The selective fluorescence response was also observed in RO water, tap water and orange juice. The FT-IR and DFT studies helped in identifying the specific H-bonding interactions responsible for the selective detection of Azinphos-methyl.

Automated summary

In this study, eco-friendly organic nanoparticles were successfully synthesized with a size range of 15-20 nm. These nanoparticles demonstrated both U.V. visible and fluorescence responses for the selective detection of the hazardous pesticide azinphos-methyl in aqueous media. Additionally, these organic nanoparticles showed selective fluorescence responses in RO water, tap water, and orange juice. FT-IR and DFT studies helped identify the specific H-bonding interactions responsible for the selective detection of Azinphos-methyl.